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WEET SMC Super Fast Recovery Rectifier ES5A-ES5J https://weetcl.com/pdf/WEET_SMC_ES5A_THRU_ES5J.PDF 
WEET SMC Super Fast Recovery Rectifier ES3A-ES3K https://weetcl.com/pdf/WEET_SMC_ES3A_THRU_ES3K.pdf 
WEET SMC Super Fast Recovery Rectifier ES2A-ES2J
WEET SMC Super Fast Recovery Rectifier ES1A-ES1J

Other Fast Recovery Rectifiers:
https://weetcl.com/Ultra_Fast_Recovery_Rectifiers
https://weetcl.com/Fast_Recovery_Rectifiers

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WEET SMA 400W TVS Transient Voltage Suppessor SMAJ Series Unidirectional DO-214AC brightking
SPEC.: https://weetcl.com/pdf/WEET_SMA_SMAJ_Series.pdf 

Exactly same paratemeters as brightking:

Only different in MaximumReverseLeakageIR @ VR(μA), WEET is 5μA, brightking is 1μA:

Other TVS Transient Voltage Suppessor:
https://weetcl.com/Transient_Voltage_Suppressors_TVS 

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WEET SMA 400W TVS Transient Voltage Suppessor SMAJ6.0A SMAJ6.0CA Series BiDirectional AECQ101 qualified
https://weetcl.com/pdf/WEET_SMA_SMAJ_Series.pdf 

Categories: Circuit Protection TVS - Diodes
Diode Type: Standard    
Voltage - Reverse Standoff (Typ): 6V
Voltage - Breakdown (Min): 6.67V     
Voltage - Clamping (Max) @ Ipp: 10.3V     
Current - Peak Pulse (10/1000µs): 38.8A     
Power - Peak Pulse: 400W
Operating and Storage Temperature - Junction: -55°C ~ 150°C    
Mounting Type: Surface Mount     
Package / Case: DO-214AC, SMA
Packaging: Tape & Reel (TR)
Certificate: ISO 9001:2015, RoHS 2.0, REACH Standard, AECQ101 qualified

Other TVS Transient Voltage Suppessor:
https://weetcl.com/Transient_Voltage_Suppressors_TVS 

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R-6 6A05 THRU 6A10 and R-6 P6A05 THRU P6A10 and R-6 P600A THRU P600M are the best alternatives for each other.

Same parameters:
Categories: Discrete Semiconductor Products Diodes - Rectifiers - Single
Diode Type: Standard    
Voltage - DC Reverse (Vr): 6A05/P6A05/P600A 50V, 6A1/P6A1/P600B 100V, 6A2/P6A2/P600D 200V, 6A4/P6A4/P600G 400V, 6A6/P6A6/P600J 600V, 6A8/P6A8/P600K 800V, 6A10/P6A10/P600M 1000V
Current - Average Rectified (Io): 6A    
Voltage - Forward (Vf) (Max) @ If: 1.1V    
Current - Reverse Leakage @ Vr: 10μA
Operating and Storage Temperature - Junction: -55°C ~ 150°C    
Mounting Type: Through Hole    
Package / Case: R-6, Axial
Packaging: Bulk, Ammo Box    
Certificate: ISO 9001:2015, RoHS 2.0, REACH Standard

R-6 6A05 THRU 6A10 (6A05, 6A1, 6A2, 6A4, 6A6, 6A8, 6A10) General Purpose Plastic Rectifier
Spec.: https://weetcl.com/pdf/WEET_R6_6A05_THRU_6A10.pdf 

R-6 P6A05 THRU P6A10 (P6A05, P6A1, P6A2, P6A4, P6A6, P6A8, P6A10) General Purpose Plastic Rectifier
Spec.: https://weetcl.com/pdf/WEET_R6_P6A05_THRU_P6A10.pdf 

R-6 P600A THRU P600M (P600A, P600B, P600D, P600G, P600J, P600K, P600M) General Purpose Plastic Rectifier
Spec.: https://weetcl.com/pdf/WEET_R6_P600A_THRU_P600M.pdf 

Other General Purpose Rectifier:
https://weetcl.com/General_Purpose_Rectifiers 

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WEET Melf Surface Mount Rectifier SM4001 SM4002 SM4003 SM4004 SM4005 SM4006 SM4007 LL4007G DO213AB
Details: https://weetcl.com/search/?Submit=&keyword=sm4007 
Spec.: https://weetcl.com/pdf/WEET_Melf_SM4001_THRU_SM4007.PDF 

Part Status: Active        
Catalog: Standard Recovery Rectifiers
Configuration: Single
Vr - Reverse Voltage: SM4001 50V,SM4002 70V,SM4003 200V,SM4004 400V,SM4005 600V,SM4006 800V,SM4007 1000V     
If - Forward Current: 1A
Ir - Reverse Current: 5 uA  
Operating/Storage Temperature - Junction: -55°C ~ 150°C     
Mounting Type: SMD/SMT     
Package / Case: MELF
RoHS Compliant

Other Recovery Rectifier:
https://weetcl.com/Fast_Recovery_Rectifiers 
https://weetcl.com/Ultra_Fast_Recovery_Rectifiers 

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Features:      
Glass Passivated Die Construction
Low Reverse Leakage Current
Ideal for Printed Circuit Board Applications
UL Listed Under Recognized Component
RoHS Compliant

Catalog: Through Hole Bridge Rectifiers
Part Status: Active     
Diode Type: Single Phase     
Technology: Standard     
Voltage - Peak Reverse (Max): GBJ6005(50V) GBJ601(100V) GBJ602(200V) GBJ604(400V) GBJ606(600V) GBJ608(800V) GBJ610(1000V)    
Current - Average Rectified (Io): 6A         
Mounting Type: Through Hole     
Package / Case: GBJ
Weight: 6.6 grams (approximate)
Cross REF:GBJ610-FDI，GBJ610F，GBJ610-F

Other Bridge Rectifiers: https://weetcl.com/Single_Phase_Bridge_Rectifiers/   

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DO-41 1N4001 THRU 1N4007 (1N4001, 1N4002, 1N4003, 1N4004, 1N4005, 1N4006, 1N4007) General Purpose Plastic Rectifier
Spec.: https://weetcl.com/pdf/WEET_DO41_1N4001_THRU_1N4007.pdf 
DO-41 1N4001G THRU 1N4007G (1N4001G, 1N4002G, 1N4003G, 1N4004G, 1N4005G, 1N4006G, 1N4007G) General Purpose Plastic Rectifier
https://weetcl.com/pdf/WEET_DO41_1N4001G_THRU_1N4007G.pdf 

Catalog: Discrete Semiconductor Products Diodes - Rectifiers - Single
Part Status: Active        
Voltage - DC Reverse (Vr) (Max): 1000V     
Current - Average Rectified (Io): 1A  
Current - Reverse Leakage @ Vr(TA = 125°): 5µA
Operating/Storage Temperature - Junction: -55°C ~ 150°C     
Mounting Type: Through Hole     
Package / Case: DO-204AL, DO-41, Axial
RoHS Compliant

Other General Purpose Rectifier: https://weetcl.com/General_Purpose_Rectifiers 

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SMA(DO-214AC) GS2AA THRU GS2MA (GS2AA, GS2BA, GS2DA, GS2GA, GS2JA, GS2KA, GS2MA) General Purpose Plastic Rectifier
details: https://weetcl.com/General_Purpose_Rectifiers/SMA_GS2AA_THRU_GS2MA.html 
spec.: https://weetcl.com/pdf/WEET_SMA_GS2AA_THRU_GS2MA.pdf 

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Features:      
Diffused Junction
Low Forward Voltage Drop
High Current Capability
UL Listed Under Recognized Component
RoHS Compliant

Catalog: Through Hole Bridge Rectifiers
Part Status: Active     
Diode Type: Single Phase     
Technology: Standard     
Voltage - Peak Reverse (Max): KBJ6005(50V) KBJ601(100V) KBJ602(200V) KBJ604(400V) KBJ606(600V) KBJ608(800V) KBJ610(1000V)    
Current - Average Rectified (Io): 6A         
Mounting Type: Through Hole     
Package / Case: KBJ
Weight: 6.6 grams (approximate)
Cross REF: KBJ610G-BP, KBJ610G   

Other Bridge Rectifiers: https://weetcl.com/Single_Phase_Bridge_Rectifiers/ 

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Spec.: https://weetcl.com/pdf/WEET_LL34_BZV55C2V4_THRU_BZV55C75.pdf  
LL-34 BZV55C2V4 THRU BZV55C75 (BZV55C2V4,BZV55C2V7, BZV55C15,BZV55C27…BZV55C75) Silicon Epitaxial Planar Zener Diodes
LL-34 BZV55B2V4 THRU BZV55B75 (BZV55B2V4,BZV55B2V7, BZV55B15,BZV55B27…BZV55B75) Silicon Epitaxial Planar Zener Diodes

Catalog: Discrete Semiconductor Products Diodes - Zener - Single
Part Status: Active        
Voltage - Zener (Nom) (Vz): 5.1V
Power - Max: 500mW        
Mounting Type: Surface Mount     
Package / Case: LL-34, MINI-MELF, SOD-80, DO-213AC
Applications: Low voltage stabilizers or voltage references
Features: The diodes are available in the normalized E24 +/-2 % (BZV55-B) and approximately +/-5 % (BZV55-C) tolerance range.

Other Zener Diodes: https://weetcl.com/Silicon_Planar_Zener_Diodes   

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What are Small Signal Transistors?
As a design note, small signal transistors are used primarily when amplifying small signals, such as a few volts and only when using milliamperes of current.
small signal transistors come in NPN and PNP forms, are used to amplify low-level signals, can also be used as a switch.
Typical hFE values range from 10 to 500, with maximum Ic ratings from about 80 to 600mA.
Maximum operating frequencies range from about 1 to 300 MHz.
Popular small signal transistors: https://weetcl.com/Small_Signal_Transistors/ 
SOT-23(TO-236) MMBT9018 (MMBT9018G, MMBT9018H) NPN Silicon Epitaxial Planar Transistors 30V Small Signal Bipolar (BJT) Transistors
Spec.: https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT9018.pdf 

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SOT-23(TO-236) MMBTSC945 (MMBTSC945R, MMBTSC945O, MMBTSC945Y, MMBTSC945P, MMBTSC945L) 60V General Bipolar (BJT) Transistors
Spec.: https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBTSC945.pdf 

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WEET Silicon Epitaxial Planar Transistors MMBT9012G MMBT9012H MMBT9013G MMBT9013H MMBT9014B MMBT9014C MMBT9014D

Spec.:
SOT-23(TO-236) MMBT9012 (MMBT9012G, MMBT9012H) PNP Silicon Epitaxial Planar Transistors Small Signal (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT9012.pdf 
SOT-23(TO-236) MMBT9013 (MMBT9013G, MMBT9013H) SMT NPN Transistor 30V to 50V Dual Transistors Small Signal (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT9013.pdf 
SOT-23(TO-236) MMBT9014 (MMBT9014B, MMBT9014C, MMBT9014D) NPN 50V Power Transistors Dual Transistors Small Signal (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT9014.pdf   

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WEET PNP Silicon General Transistors SOT-23 BC857A BC857B BC857C BC858A BC858B BC858C BC859A BC859B BC859C
Spec.: https://weetcl.com/pdf/WEET_Transistors_SOT-23_BC856_THRU_BC860.pdf 

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WEET NPN Silicon Epitaxial Planar Transistors SOT-23 BC848A BC848B BC848C BC849A BC849B BC849C
Spec.: https://weetcl.com/pdf/WEET_Transistors_SOT-23_BC846_THRU_BC850.pdf
Transistors Package Type:       
TO-3               TO-3 is a transistor outline (TO) package.        
TO-8               TO-8 is a transistor outline (TO) package.       
TO-39             TO-39 is a transistor outline (TO) package.       
TO-92             TO-92 is a single in-line, transistor outline (TO) package that is often used for low power devices. One of the oldest power packages, TO-92 is suitable for applications in office and communication equipment.        
TO-202           TO-202 is a transistor outline (TO) package.        
TO-220           TO-220 is a transistor outline (TO) package that is suitable for high-power, medium-current, and fast-switching power devices. TO-220 is used in home appliances, office and industrial equipment, and personal and consumer electronics. A package variant, TO-220 Full Pack, includes a fully encapsulated heat sink that does not require extra hardware for electrical isolation. TO-220 Full Pack has the same footprint as TO-220, provides electrical isolation up to 5 KV, and is often used in motor drive applications and power supplies.       
TO-223          TO-223 is a transistor outline (TO) package.        
TO-237          TO-237 is a transistor outline (TO) package.        
TO-247          TO-247 is a large, throughhole, transistor outline (TO) package. TO-247 provides excellent power dissipation and is ideal for metal oxide semiconductor field effect transistors (MOSFETs), high power bipolar transistors, and insulated gate bipolar transistors (IGBTs).       
TO-263          TO-263 is the surface-mount version of the TO-220 package. TO-263 is a transistor outline (TO) package with 2, 3, 5, 6, or 7 leads. TO-263 can accommodate large dice because of its large pad design. It is suitable for high-power applications due to its low resistance. Typical applications for TO-263 include home appliances and personal computers.      
SO-8               SO-8 is a small outline (SO) package.        
SOT3               SOT3 is a small outline transistor (SOT) package with three leads.        
SOT23             SOT23 is a rectangular, surface-mounted, small outline transistor (SOT) package with three or more gull wing leads. SOT23 features a very small footprint and is optimized for the highest possible current. Because of its low cost and low profile, SOT23 is used in home appliances, office and industrial equipment, personal computers, printers, and communication equipment.        
SOT25              SOT25 is a surface-mounted, small outline transistor (SOT) package with three leads.         
SOT26              SOT26 is a plastic, surface-mounted, small outline transistor (SOT) package with three leads.        
SOT82              SOT82 is a rectangular, surface-mounted, small outline transistor (SOT) package with three leads. SOT82 is larger than DPAK and smaller than TO-220, but still comparable to TO-220 in performance. SOT82 lead frames are available in full nickel or selective silver plating and allow wire bonding with gold or aluminum wire. Often, SOT82 is used in over-voltage protection devices in telecommunications equipment. SOT82 is also used to package high-power rectifiers, DC to AC converters (DACs) and frequency converters.        
SOT89               SOT89 is a plastic, surface-mounted, small outline transistor (SOT) package with three leads and a collector pad for good heat transfer. Unlike other packages, SOT89 lead posts are up-set and not down-set. SOT89 is designed for medium power and high-speed switching applications. It is also used in applications that feature very low RDS (on), no secondary breakdown, and direct interface to complementary metal oxide semiconductor (CMOS) and transistor-transistor logic (TTL).       
SOT123              SOT123 is a flanged, ceramic, surface-mounted, small outline transistor (SOT) package with two mounting holes and four leads.        
SOT143              SOT143 is a plastic, surface-mounted, small outline transistor (SOT) package with four leads.       
SOT223              SOT223 is a plastic, surface-mounted, small outline transistor (SOT) package with four leads and a heat sink. During soldering, the formed leads absorb thermal stress and eliminate the possibility of damage to the die. The encapsulation material enhances device reliability, allowing SOT223 to provide excellent performance in environments with high temperatures and humidity levels. SOT223 provides power dissipation of 1-1.5 W.       
SOT323              SOT323 is a plastic, surface-mounted, small outline transistor (SOT) package with three leads.       
TO-251 / TO-252 TO-251 and TO-252 are low-to-medium-power packages that feature a transistor outline (TO). TO-251 uses throughhole technology (THT). TO-252 uses surface-mount technology (SMT). Both packages provide several lead frame choices and are commonly used in home appliances, personal computers, lighting, and automotive systems.           
FPAK                  Flat package (FPAK).       
Other                 Other unlisted or proprietary packages.  
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WEET PNP Silicon Epitaxial Planar Transistors MMBT3904 MMBT3906 MMBT8050C MMBT8050D MMBT8550C MMBT8550D
Spec.:
SOT-23(TO-236) MMBT3904 General Purpose Transistors NPN Transistor 350mW PNP Small Signal Bipolar (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT3904.pdf 
SOT-23(TO-236) MMBT3906 General Purpose Transistors PNP Transistor 350mW PNP Small Signal Bipolar (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT3906.pdf 
SOT-23(TO-236) MMBT8050 (MMBT8050C, MMBT8050D) General Purpose Transistors 40V SMD NPN Bipolar (BJT) Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT8050.pdf 
SOT-23(TO-236) MMBT8550 (MMBT8550C, MMBT8550D) SMD Small Signal Transistor Bipolar (BJT) Switch Transistors
https://weetcl.com/pdf/WEET_Transistors_SOT-23_MMBT8550.pdf 

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MMBT3904 and MMBT3906 are general-purpose transistors characterized by continuously adjustable voltage, low dynamic output resistance, flat temperature characteristics, and low output voltage noise.

Name of Product: MMBT3904 MMBT3906
Product Category: Bipolar Transistors - BJT
Transistor type: general small signal
Mounting Style: SMD/SMT
Transistor polarity: PNP
Configuration: Single
Voltage, Vceo: 40V
Power consumption, Pd: 350mW
Package Type: SOT-23
Packaging: Tape Reel
Factory Pack Quantity: 3000
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WEET Transistors SOT-23 BC856 BC857 BC858 BC859 BC860  
Specs.: https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC856_THRU_BC860.pdf 

Series: BC856 BC857 BC858 BC859 BC860
Manufacturer: WEET
Product Category: Bipolar Transistors - BJT
Mounting Style: SMD/SMT
Package / Case: SOT-23
Transistor Polarity: PNP
Configuration: Single
Collector- Base Voltage VCBO Max: 80V for BC856 ; 50V for BC857/BC860 ; 30V for BC858/BC8659
Collector- Emitter Voltage VCEO Max: 65V for BC856 ; 45V for BC857/BC860 ; 30V for BC858/BC8659
Emitter- Base Voltage VEBO: 5V
Maximum DC Collector Current: 200mA
Gain Bandwidth Product fT: 100MHz
Operating Temperature Range: - 65 C + 150 C
Pd - Power Dissipation: 200mW
Packaging: Tape Reel
Factory Pack Quantity: 3000
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WEET Transistors SOT-23 BC846 BC847 BC848 BC849 BC850  
As complementary types the PNP transistors BC856 BC857 BC858 BC859 BC860 are recommended.

Specs.https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC846_THRU_BC850.pdf 

Series: BC846 BC847 BC848 BC849 BC850
Manufacturer: WEET
Product Category: Bipolar Transistors - BJT
Mounting Style: SMD/SMT
Package / Case: SOT-23
Transistor Polarity: NPN
Configuration: Single
Collector- Base Voltage VCBO Max: 80V for BC846 ; 50V for BC847/BC850 ; 30V for BC848/BC849
Collector- Emitter Voltage VCEO Max: 65V for BC846 ; 45V for BC847/BC850 ; 30V for BC848/BC849
Emitter- Base Voltage VEBO: 5V
Maximum DC Collector Current: 200mA
Gain Bandwidth Product fT: 100MHz
Operating Temperature Range: - 65 C + 150 C
Pd - Power Dissipation: 300mW

Packaging: Tape Reel
Factory Pack Quantity: 3000
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WEET Transistors SOT-23 BC807/BC808, BC817/BC818
These transistors are subdivided into three groups -16, -25, -40 according to their current gain.   
the PNP transistors BC807 and BC808 are recommended as complementary types of BC817 and BC818.
the NPN transistors BC817 and BC818 are recommended as complementary types of BC807 and BC808.

Specs.: https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC807_BC808.pdf 
https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC817_BC818.pdf 

Series: BC807/BC808, BC817/BC818
Manufacturer: WEET
Product Category: Bipolar Transistors - BJT
Mounting Style: SMD/SMT
Package / Case: SOT-23
Transistor Polarity: PNP for BC807/BC808, NPN for BC817/BC818

Configuration: Single
Collector- Base Voltage VCBO Max: 50V for BC807/BC817 ; 35V for BC808/BC818
Collector- Emitter Voltage VCEO Max: 45V for BC807/BC817 ; 25V for BC808/BC818
Emitter- Base Voltage VEBO: 5V
Maximum DC Collector Current: 500mA
Gain Bandwidth Product fT: 80MHz for BC807/BC808; 100MHz for BC817/BC818
Operating Temperature Range: - 55 C + 150 C
Pd - Power Dissipation: 300mW
Packaging: Tape Reel
Factory Pack Quantity: 3000
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