WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

Seven Main steps required for testing of a diode rectifier are as follows. Suggested by WEET engineer group.

1, Choose a superior quality digital multi-meter, which is very important. Good sensitivity and accuracy counts a lot in testing period.

2, Fix the testing range in the diode position. You need to check both terminal are set in proper position and connected well.

3, On the display you are supposed to easily get a 3 or an infinite voltage reading depending upon the multi-meter used

4, Correctly connect the red probe to the cathode and the black probe to the anode of the rectifier. 

5, The digital multi-meter display will show the low forward voltage drop (rectifier diode) of around 0.6 volts at once

6, Now reverse the connections, the display will return to its original reading, which indicating that the diode is a good condition

7, If the meter displays any other reading, the diode may be leaky or faulty while a 0000 reading means a short circuit.

Need any technical support? Contact with WEET sales team right now, we will find the best solution for you.

https://www.weetcl.com/pdf/WEET_DO27_SF31G_THRU_SF38G.pdf

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

Super Fast Diode 3A (DO-201AD) DO-27 Glass Passivated  SF31G THRU SF38G (SF31G, SF32G, SF33G, SF34G, SF35G, SF36G, SF37G, SF38G) Ultra-Fast Recovery Rectifiers

WEET 400V 3A, Diode, 2-Pin DO-201AD SF36G , competitive with YANGJIE TECHNOLOGY and Taiwan Semiconductor Corporation in price , qaulity and leadtime.

In the same family of these diodes, WEET also provide different packages （DO-15, DO-41, DO-27） and currents from 1A to 5A. Details please refer to below table.

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/DO27_SF31G_THRU_SF38G.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

The voltage drop in a diode is usually the same taking no account of the size or current rating.  In this way, the power dissipated will generally be the same.  

Diodes are electronic one-way valves, letting current flow in one direction but not the reverse. If you’re designing a circuit that uses them, you’ll need to know they have limits. They can handle a rated maximum current, and if you exceed this limit you’ll destroy the part. They also have a reverse voltage limit, past which they will start conducting, possibly with damaging results. And diodes come in several different physical case styles, with leads (DIP)or in a surface-mount (SMD) case. 

In case you are going to select a diode, which rated much higher than your calculated maximums, it will work absolutely well in your circuit but it may be expensive and physically large. Small packages are favorable these days, such as SMAF package. If you use diodes that match or fit between your minimum and maximum ratings, they will work safely and will cost down for you.

So do you have any ideas on how to choose a right diodes? If you still have doubts, please do not hesitate to contact with WEET engineers sales.

Take SMB(DO-214AA) ES2A THRU ES2J (ES2A, ES2B, ES2C, ES2D, ES2E, ES2G, ES2J) Ultra-Fast Recovery Rectifiers for example:

Maximum Repetitive Peak Reverse Voltage: 600V

Maximum Average Forward Rectified Current at TL =100℃: 2A

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

In order to meet customer special requests and various applications, WEET developed at least 5  different kinds of packages(styles) for ES1A THRU ES1J, from bigger size to smaller size. In considering the chip size, bigger packages like SMB is the most stable one but also the most expensive one. 

However, we need to choose a suitable diodes rather than dear diodes. So WEET is always upgrading technology to help customers to save cost and  provide solutions. We are sure, one of below package will suit you. We are WEE, We Enhance Efficiency.

SMB(DO-214AA) ES1AB THRU ES1JB (ES1AB, ES1BB, ES1CB, ES1DB, ES1EB, ES1GB, ES1JB) Ultra-Fast Recovery Rectifiers

SMA(DO-214AC) ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Super-Fast Recovery Rectifiers

SMA-J(DO-214AC) ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers

SMAF ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers

SOD-123FL ES1A THRU ES1J ( ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SOD123FL_ES1A_THRU_ES1J.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

These days, lots of products ranging from daily used computers and home appliances to bigger automobiles and industrial equipment have been pursuing the need for effective solutions to cut down size and weight of electronics components, diodes has no exception.

Semiconductor requirements differ from application to application. Take power supplies for example, which are being required to accommodate higher capacity in smaller dimensions. However, this increases the temperature at which systems are operated. So new generation of diodes pop up. Such as SMAF (Flat) package diodes.

To meet these requirements, WEET offers an extensive portfolio of small, high-efficiency diodes, including Schottky barrier diodes (SBDs) and Super-Fast-Recovery Diodes(S-FRDs) featuring high-speed operation and low forward loss. Today please see the WEET Axial and SMD Pacakge 2A Hot Super-Fast-Recovery Diodes(S-FRDs) Small Current Rectifiers Summary

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/

DO-15 Ultra-Fast Recovery Rectifiers ER201 THRU ER206 (ER201, ER202, ER203, ER204, ER206) 

DO-15 Ultra-Fast Recovery Rectifiers SF21 THRU SF28 (SF21, SF22, SF23, SF24, SF25, SF26, SF28) 

DO-15 Ultra-Fast Recovery Rectifiers SF21G THRU SF28G (SF21G, SF22G, SF23G, SF24G, SF25G, SF26G, SF28G) 

ITO-220AB Ultra-Fast Recovery Rectifiers SF2005 THRU SF2060 ( SF2005, SF2010, SF2015, SF2020,SF2030, SF2040, SF2060) 

SMAF Ultra-Fast Recovery Rectifiers ES2AF THRU ES2JF (ES2AF, ES2BF, ES2CF, ES2DF, ES2EF, ES2GF, ES2JF) 

SMA(DO-214AC) Ultra-Fast Recovery Rectifiers ER2A THRU ER2J (ER2A, ER2B, ER2C, ER2D, ER2E, ER2G, ER2J) 

SMA(DO-214AC) Ultra-Fast Recovery Rectifiers ES2A THRU ES2J (ES2A, ES2B, ES2C, ES2D, ES2G, ES2J) 

SMB(DO-214AA) Ultra-Fast Recovery Rectifiers ES2A THRU ES2J (ES2A, ES2B, ES2C, ES2D, ES2E, ES2G, ES2J)

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET CSMC(DO-214AB) ES5A THRU ES5J ( ES5A, ES5B, ES5C, ES5D, ES5E, ES5G, ES5J) Ultra-Fast / Super Fast Recovery Rectifiers

Pb Free Plating Product ES5G 400V 5.0 Ampere Surface Mount Type Super Fast Recovery Rectifier, cross refer to Goodark, Rectron, Yangjie, MDD and so on, but with better price and stable quality. 

WEET Updated the latest RoHS 2.0 and Reach 191 SGS testing report, all of WEET diodes and rectifiers are green products. For more details please check below link, thank you.

https://www.weetcl.com/pdf/WEE-Technology-Diodes-Rectifiers-RoHS-II-2019.pdf

https://www.weetcl.com/pdf/WEE-Technology-Diodes-Rectifiers-REACH-2019.pdf

https://www.weetcl.com/pdf/WEE-Technology-Company-Limited-Presentation.pdf

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET 200V 5A SMC DO-214AB ES5D Ultra-Fast Recovery Rectifiers Cross to ThinkiSemi Taiwan ES5A, ES5B, ES5C, ES5D, ES5E, ES5G, ES5J,

http://www.thinkisemi.com/pdf/ES5D_ES5G_ES5J.pdf

ES5D Maximum Repetitive Peak Reverse Voltage : 200Volts

Maximum RMS Voltage : 140Volts

Maximum DC Blocking Voltage  : 200Volts

Maximum Average Forward Rectified Current at TL=100℃: 5.0Amps 

Typical Reverse Recovery Time : 35nS 

Test conditions IF =0.5A, IR =1.0A, IRR =0.25A

APPLICATION: LED SMPS/Industrial power supply HID ballast stabilizer Telecommunication SMPS/LED street lamp

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/WEE_SMC_ES5A_THRU_ES5J.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET has been doing diodes business more than 20 years, if you are looking for a real Chinese end factory, try WEET for sure.

Part Number: ES5A ES5B ES5C ES5D ES5E ES5G ES5J

Current: 5A
Voltage: 50V to 600V

Package: SMC (DO- 214AB)

Brand Name: WEET

Country of Origin: China

Packing: Tape and Reel, 3Kpcs per reel

Normal need time: 2-3 weeks

For surface mounted applications

Know more details please check below datasheet, thank you,

https://weetcl.com/pdf/WEET_SMC_ES5A_THRU_ES5J.PDF

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET SMB(DO-214AA) ES2A THRU ES2J Ultra-Fast/Super-Fast Recovery Rectifiers
ES2A(50V),ES2B(100V),ES2C(150V),ES2D(200V),ES2E(300V),ES2G(400V),ES2J(600V)

WEET Strong Packages：A-405, DO-15, DO-27, DO-35, DO-41, LL-34, LL-41, R-1, R-6, SMA, SMAF, SMAJ, SMB, SMC, SOD123, SOD-123FL, SOD-323, SOT-23, TO-220, TO-263, TO-277, MBS, MBF LBS, ABS, MBM, DB, DBS, WOM, MBM, KBP, GBP, KBL, KBU, GBU, KBJ4(3S), KBJ6(5S), BR6, KBPC6, KBPC8, KBPC/KBPC-W, BR/BR-W, BR-L, KBPC3(BR-3), GBPC, GBPCW, S35, S36, D4K

Check more WEET ES2A, ES2B, ES2C, ES2D, ES2E, ES2G, ES2J information at

Page:  https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SMB_ES2A_THRU_ES2J.html 
Datasheet: https://www.weetcl.com/pdf/WEET_SMB_ES2A_THRU_ES2J.pdf 

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

SMC(DO-214AB) ES3A THRU ES3J ( ES3A, ES3B, ES3C, ES3D, ES3E, ES3G, ES3J) Ultra-Fast Recovery Rectifiers

WEET ES3J  - WEET ES3J Superfast/Ultrafast Rectifier Diode SMD DO-214AB - 600V 3A superfast and efficient rectifier diode, also available in SMB package.

Lead time : 3 weeks

Applications: WEE Technology products are widely used in communication, network, instrument, computer, TV and VCD in civil, industrial and military fields.

Glass passivated junction. Easy pick and place. Low profile package. Built-in strain relief. Superfast recovery times for high efficiency.‍

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SMB_ES3A_THRU_ES3J.html

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SMC_ES3A_THRU_ES3J.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifier

WEET SMA(DO-214AC) ES2A THRU ES2J (ES2A, ES2B, ES2C, ES2D, ES2E, ES2G, ES2J) Ultra-Fast Recovery Rectifiers

WEET DO-15 dip type Ultrafast Super Fast Diode SF28  is the smae as ES2J with Package SMA/DO-201AC  in SMD type

Usage: LED driver power supply, lighting power supply

SMD SMA package ES2J 2.0A, 600V can be replaced by through hole dip type SF28

SMD SMA package ES2G 2.0A, 400V can be replaced by through hole dip type SF26

SMD SMA package ES2E 2.0A, 300V can be replaced by through hole dip type SF25

SMD SMA package ES2D 2.0A, 200V can be replaced by through hole dip type SF24

SMD SMA package ES2B 2.0A, 150V can be replaced by through hole dip type SF23

SMD SMA package ES2C 2.0A, 100V can be replaced by through hole dip type SF22

SMD SMA package ES2A 2.0A, 50V can be replaced by through hole dip type SF21

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/DO15_SF21_THRU_SF28.html

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SMA_ES2A_THRU_ES2J.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifier.

WEET 1A SMA-J (DO-214AC) ES1D SMD Surface Mount Glass Passivated Super Fast Recovery Rectifiers

WEET Surface Mount Ultrafast Plastic Rectifier ES1D Specifications  and Features:

FEATURES

•Current at 1A, volatge at 200V

•Low profile package SMA-J (DO-214AC), also avialabe in SMA, SMB, SMAF packages

•Ideal for automated placement, easy for packing and auto machines pick up.

•Glass passivated GPP pellet chip junction

APPLICATIONS
•For use in high frequency rectification and freewheeling application in switching mode converters and inverters for consumer, computer, automotive and telecommunication.

Datesheet quick download at below link:

https://www.weetcl.com/pdf/WEET_SMAJ_ES1A_THRU_ES1J.pdf

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifier.

WEET SMA-J(DO-214AC) ES1A THRU ES1J Ultra-Fast / Super Recovery Rectifiers.

ES is a short name for a fast recovery diode, also known as the model. 1 represents the maximum current 1A that can pass through the diode, and J represents its voltage withstand value 600V.

Fast recovery diode is a semiconductor diode with good switching characteristics and short reverse recovery time.

It is mainly used in switching power supply, PWM pulse width modulator, frequency converter and so on.

In the circuit, it is used as a high frequency rectifier diode, a continuous current diode or a damper diode.

WEET ES1A 50V,  WEET ES1B 100V,  WEET ES1C 150V,  WEET ES1D 200V, WEET ES1E 300V,  WEET ES1G 400V,  WEET ES1J 600V

ES1A THRU ES1J comes into below different kinds of package, please contact with us for any package you perfer, thank you,

SMB(DO-214AA) ES1AB THRU ES1JB (ES1AB, ES1BB, ES1CB, ES1DB, ES1EB, ES1GB, ES1JB) Ultra-Fast Recovery Rectifiers

SMA(DO-214AC) ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers
SMA-J(DO-214AC) ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers
SMAF ES1A THRU ES1J (ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers

SOD-123FL ES1A THRU ES1J ( ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J) Ultra-Fast Recovery Rectifiers

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SMAJ_ES1A_THRU_ES1J.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET DO-41 SF11 THRU SF18 (SF11, SF12, SF13, SF14, SF15, SF16, SF18) Ultra-Fast Recovery Rectifiers

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/DO41_SF11_THRU_SF18.html

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEE Technology manufacturers high reliability, superior quality and competitive price GPP Glass passivated chip junction Super Fast (Ultra Fast) Rectifier Diode SF56G with 5.0Amp/400V/35nS in DO-27(DO-201AD) package.

Check more details about WEET 51G(50V), SF52G(100V), SF53G(150V), SF54G(200V), SF55G(300V), SF56G(400V), SF58G(600V) at below link: 

https://weetcl.com/pdf/WEET_DO27_SF51G_THRU_SF58G.pdf

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEE Technology manufacturers high reliability and outstanding performance Glass passivated chip junction Super Fast (Ultra Fast) Rectifier Diode SF58G in DO-27(DO-201AD) package. WEET DO-27 SF51G THRU SF58G (SF51G, SF52G, SF53G, SF54G, SF55G, SF56G, SF58G) Ultra-Fast Recovery Rectifiers

Average Forward Current: 5A

Repetitive Peak Reverse Voltage VRRM : 600V

WEET DO-27 SF58G Ultra-Fast Recovery Rectifiers Applications:

For widely use in high frequency rectification and freewheeling application in switching mode converters and inverters for consumer, computer and telecommunication.

https://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/DO27_SF51G_THRU_SF58G.html

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

SOD-123FL E1A THRU E1J (E1A, E1B, E1C, E1D, E1F, E1G, E1J) Ultra-Fast Recovery Rectifiers

Mini Package : SMD SOD-123FL

Voltage Range from 50 to 600 Volts

Maximum Average Forward Rectified Current: 1.0 Ampere 

Packing: Tape and Reel

SOD-123FL advantages are more efficient and stable. Ultra-thin Mini!  LED drive power first choice!

Order WEET SOD-123FL E1A THRU E1J now. We are WEE. We Enhance Efficiency.

http://www.weetcl.com/Ultra_Fast_Recovery_Rectifiers/SOD123FL_E1A_THRU_E1J.html

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers.

The ES2J is a surface-mount ultra-fast diode with molded plastic case and lead-free pure tin-plated terminals. It used for switching mode power supply (SMPS), adapters, converter and lighting application. If you are interested in it, please contact our sales by info@smddip.com

WEE ES2J super-fast recovery diode feature:

Reverse voltage - 50 to 600 Volts                

Forward current - 2.0 Ampere

For surface mounted applications                

Low profile package

Glass passivated chip junction                  

Super-fast recovery time for high efficiency

Easy pick and place                          

Ideal for automated placement

Compliant to RoHS directive 2011/65/EU 

WEE ES2J super-fast recovery diode mechanical data:

Case: SMAF (DO-214AC, also known as SMA)

Material: GPP chip

Packing: T/R (turntable roll)

Quantity: 10Kpcs /roll

Supply: 200KKpcs/month

Types: ES2A, ES2B, ES2C, ES2D, ES2E, ES2G, ES2J

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers.

The ES1J from WEE is surface mount ultra-fast recovery rectifier in SMAF (DO-214AC, also known as SMA) package. This device features glass passivated junction, low profile package and super-fast recovery time for high efficiency. It used for power management, industrial, portable devices, and consumer electronics.

WEE ES1J ultra-fast recovery rectifier characteristics: 

Reverse voltage - 50 to 600 Volts               

Forward current - 1.0 Ampere

Ideally suited for automatic assembly           

Low forward voltage drop

Low power loss

High temperature soldering guaranteed : 250℃/10 seconds at terminals

WEE ES1J ultra-fast recovery rectifier mechanical data:

Material: GPP chip

Packing: T/R (turntable roll)

Quantity: 10Kpcs /roll

Supply: 200KKpcs/month

Types: ES1A, ES1B, ES1C, ES1D, ES1E, ES1G, ES1J

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

Super Fast Recovery Rectifiers

DO-41 Super Fast Recovery Rectifier SF11-SF18
SMA Super Fast Recovery Rectifier ES2A-ES2J
SMB Super Fast Recovery Rectifier ES3A-ES3J
SMC Super Fast Recovery Rectifier ES5A-ES5J
SMA-J Super Fast Rectifier ES1A-ES1J
SMA Super Fast Rectifier ES1A-ES1J
SMB Super Fast Rectifier ES2A-ES2J
SMC Super Fast Rectifier ES3A-ES3J