S3B V6G General Purpose Rectifier Diode – Equivalent & Substitute Parts

Part Overview

The S3B V6G is a general purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The part operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 and REACH standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the S3B V6G is determined by electrical and mechanical parameter equivalence within the general purpose rectifier diode category. The critical parameters governing substitution are:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 3 A minimum
Reverse Recovery Time (trr): 1.5 µs maximum
Technology classification: Standard recovery

Mechanical Parameters:

Package / Case: DO-214AB (SMC) surface mount configuration
Mounting Type: Surface Mount

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Operating Temperature Range: -55°C to 150°C or equivalent

The S3B manufactured by Diotec Semiconductor meets all substitution criteria, maintaining identical voltage and current ratings, matching reverse recovery time, and utilizing the same DO-214AB (SMC) package. Both parts are ROHS3 compliant and operate within compatible temperature ranges.

Parameter Comparison

Parameter	S3B V6G (Taiwan Semiconductor)	S3B (Diotec Semiconductor)	Match Status
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	Equivalent
Current - Average Rectified (Io)	3 A	3 A	Equivalent
Reverse Recovery Time (trr)	1.5 µs	1.5 µs	Equivalent
Current - Reverse Leakage @ Vr	10 µA @ 100 V	5 µA @ 100 V	Compatible (Lower leakage)
Package / Case	DO-214AB, SMC	DO-214AB, SMC	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-50°C to 150°C	Compatible
Technology	Standard	Standard	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Discontinued at DiGi Electronics	Active	Substitute Available

Engineering Selection Recommendations

The S3B manufactured by Diotec Semiconductor is a direct functional equivalent to the discontinued S3B V6G from Taiwan Semiconductor Corporation. Both parts share identical electrical ratings (100 V, 3 A, 1.5 µs recovery time), identical package configuration (DO-214AB/SMC), and equivalent compliance certifications (ROHS3).

The Diotec S3B offers the following advantages for design continuity:

Active Product Status: Currently in production with 3859 pieces in stock, ensuring supply chain availability
Lower Reverse Leakage: 5 µA @ 100 V versus 10 µA @ 100 V, indicating improved performance characteristics
Compliance Alignment: ROHS3 compliant, matching the original part's regulatory status
Temperature Range Compatibility: Operating range of -50°C to 150°C covers the critical upper temperature specification of the original part

Direct substitution is supported without circuit redesign or layout modification, as the mechanical footprint and electrical performance are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the Diotec S3B directly replace the Taiwan Semiconductor S3B V6G without PCB layout changes?

A: Yes. Both parts utilize the identical DO-214AB (SMC) surface mount package, enabling direct substitution without PCB redesign or component repositioning.

Q: Are the electrical ratings identical between the two parts?

A: The critical electrical ratings are equivalent: 100 V DC reverse voltage, 3 A average rectified current, and 1.5 µs reverse recovery time. The Diotec part exhibits lower reverse leakage current (5 µA versus 10 µA), which is a performance improvement.

Q: What is the minimum operating temperature difference between the two parts?

A: The Taiwan Semiconductor part operates from -55°C to 150°C, while the Diotec part operates from -50°C to 150°C. The 5°C difference at the lower temperature limit does not affect standard industrial applications operating above -50°C.

Q: Are both parts RoHS compliant?

A: Yes. Both the S3B V6G (Taiwan Semiconductor) and S3B (Diotec Semiconductor) are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the package designation for both parts?

A: Both parts use the DO-214AB package, also designated as SMC (Surface Mount Case). This is a standard surface mount rectifier package with identical lead spacing and thermal characteristics.

Q: Is the Diotec S3B currently available in inventory?

A: Yes. The Diotec S3B is an active product with 3859 pieces in stock, providing immediate availability for production and prototyping applications.

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