STB20100C Equivalent & Substitute Parts

Part Overview

The STB20100C is a Schottky diode array manufactured by SMC Diode Solutions, configured as 1 pair common cathode with a maximum reverse voltage rating of 100 V. This surface mount component is housed in a TO-263-3 D2PAK package and is classified as Active product status with full RoHS3 compliance. The STB20100C serves applications requiring fast recovery Schottky rectification in compact surface mount form factors. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across multiple manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Voltage - Forward (Vf) (Max) @ If	750 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the STB20100C is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Diode Configuration: 1 Pair Common Cathode (all substitutes must match)
Technology: Schottky (all substitutes must match)
Voltage - DC Reverse (Vr) (Max): 100 V (all substitutes must match or exceed)
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB (all substitutes must match)
Mounting Type: Surface Mount (all substitutes must match)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (all substitutes must match)

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Substitutes with equal or higher current ratings are acceptable
Voltage - Forward (Vf) (Max) @ If: Substitutes with equal or lower forward voltage are acceptable
Current - Reverse Leakage @ Vr: Substitutes with equal or lower leakage current are acceptable
Operating Temperature - Junction: Substitutes with equal or higher maximum temperature are acceptable
RoHS Status: All substitutes must maintain RoHS3 compliance
Moisture Sensitivity Level (MSL): Substitutes with MSL 1 or equivalent are acceptable

All identified substitute parts meet these criteria and are classified as Active product status.

Parameter Comparison

Parameter	STB20100C (SMC)	STPS10H100CG-TR (STMicroelectronics)	STR20100LCB_R2_00001 (Panjit)	WNS20H100CBJ (WeEn)
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	Not specified	5A	10A	10A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 10 A	730 mV @ 5 A	750 mV @ 10 A	750 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	300 µA @ 100 V	3.5 µA @ 100 V	50 µA @ 100 V	50 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 150°C	175°C (Max)	-55°C ~ 150°C	150°C (Max)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory and procurement continuity.

STB20100C (SMC Diode Solutions): Primary reference part. Tape & Reel packaging. 1657 units in stock. REACH Affected status.

STPS10H100CG-TR (STMicroelectronics): Substitute with 5A current rating. Cut Tape & Digi-Reel packaging. 4960 units in stock. REACH Unaffected status. Maximum junction temperature 175°C. Reverse leakage current 3.5 µA @ 100 V represents superior leakage performance.

STR20100LCB_R2_00001 (Panjit International Inc.): Parametric equivalent with 10A current rating. Tape & Reel packaging. 2341 units in stock. REACH Unaffected status. Reverse leakage current 50 µA @ 100 V. Operating temperature range -55°C ~ 150°C matches primary part.

WNS20H100CBJ (WeEn Semiconductors): Parametric equivalent with 10A current rating. Cut Tape & Digi-Reel packaging. 15791 units in stock. Highest inventory availability. Reverse leakage current 50 µA @ 100 V. Maximum junction temperature 150°C.

Selection among substitutes is determined by current rating requirements, packaging format preference, inventory availability, and REACH compliance status for the application.

Frequently Asked Questions (FAQ)

Q: Can STPS10H100CG-TR replace STB20100C in all applications?

A: STPS10H100CG-TR is electrically compatible as a substitute. Both components share identical diode configuration, Schottky technology, 100 V reverse voltage rating, and fast recovery speed. The STPS10H100CG-TR has a 5A current rating compared to the unspecified rating of STB20100C. Substitution is valid for applications where 5A per diode current capacity is sufficient. Packaging differs: STPS10H100CG-TR uses Cut Tape & Digi-Reel format versus STB20100C Tape & Reel format.

Q: What is the difference between STR20100LCB_R2_00001 and WNS20H100CBJ?

A: Both parts are parametric equivalents with identical electrical specifications: 10A current rating, 100 V reverse voltage, 750 mV forward voltage @ 10 A, and 50 µA reverse leakage @ 100 V. Primary differences are manufacturer (Panjit versus WeEn), packaging format (Tape & Reel versus Cut Tape & Digi-Reel), and inventory availability (2341 units versus 15791 units). Operating temperature maximum is 150°C for both parts.

Q: Are all substitute parts in the same D2PAK package?

A: Yes. All substitute parts use TO-263-3, D2PAK (2 Leads + Tab), TO-263AB package format, ensuring mechanical and thermal compatibility with the STB20100C. Packaging format (Tape & Reel versus Cut Tape & Digi-Reel) refers to supply method, not physical package dimensions.

Q: Which substitute has the lowest reverse leakage current?

A: STPS10H100CG-TR has the lowest reverse leakage current at 3.5 µA @ 100 V, compared to 50 µA for STR20100LCB_R2_00001 and WNS20H100CBJ, and 300 µA for the primary STB20100C part.

Q: Do all parts meet RoHS3 compliance?

A: Yes. STB20100C, STPS10H100CG-TR, STR20100LCB_R2_00001, and WNS20H100CBJ are all RoHS3 compliant, meeting environmental and regulatory requirements for restricted substance use.

Q: What is the significance of REACH status differences?

A: STB20100C is REACH Affected, while STPS10H100CG-TR, STR20100LCB_R2_00001, and WNS20H100CBJ are REACH Unaffected. REACH Affected status indicates the component may contain substances of concern requiring additional documentation and compliance verification. REACH Unaffected status indicates no such substances are present. Selection depends on supply chain compliance requirements and regulatory jurisdiction.

Q: Can I use STPS10H100CG-TR if my application requires 10A per diode?

A: No. STPS10H100CG-TR is rated for 5A per diode. For applications requiring 10A per diode capacity, use STR20100LCB_R2_00001 or WNS20H100CBJ, both rated at 10A per diode.

Q: Are the forward voltage specifications directly comparable?

A: Forward voltage specifications are provided at different current levels. STB20100C and STR20100LCB_R2_00001 specify 750 mV @ 10 A. STPS10H100CG-TR specifies 730 mV @ 5 A. Direct comparison requires evaluation at the same current level. STPS10H100CG-TR demonstrates lower forward voltage at its rated current, but this does not directly indicate performance at 10A operation.

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