1N3208 Equivalent & Substitute Parts Reference

Part Overview

The 1N3208, manufactured by GeneSiC Semiconductor, is a general-purpose rectifier diode rated for 50V reverse voltage, 15A average rectified current, with a standard recovery time. It is supplied in a DO-203AB (DO-5) chassis, stud mount package, and operates across a temperature range of -65°C to 175°C. This device is RoHS compliant and intended for high-reliability applications in power rectification. Identifying alternative or equivalent rectifier diodes is necessary for mitigating supply chain risks, addressing inventory shortages, or qualifying multiple sources for design flexibility.

Key Parameters

Parameter	1N3208 Value
Manufacturer	GeneSiC Semiconductor
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	50 V
Current - Average Rectified (Io)	15A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 15 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 50 V
Mounting Type	Chassis, Stud Mount
Package / Case	DO-203AB, DO-5, Stud
Operating Temperature - Junction	-65°C ~ 175°C
RoHS Status	RoHS Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

The substitution group includes only those parts that match the key functional and mechanical parameters of the 1N3208 rectifier diode. The critical criteria for parametric equivalence are: maximum reverse voltage (Vr), average rectified current (Io), forward voltage drop (Vf) at specified current, recovery speed, reverse leakage current, mounting type, and package type. Compliance with RoHS and moisture sensitivity requirements is also maintained.

Parameter Comparison

Parameter	1N3208 (GeneSiC Semiconductor)	VS-1N3208 (Vishay General Semiconductor)
Category	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	50 V	50 V
Current - Average Rectified (Io)	15A	15A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 15 A	1.5 V @ 15 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 mA @ 50 V
Mounting Type	Chassis, Stud Mount	Chassis, Stud Mount
Package / Case	DO-203AB, DO-5, Stud	DO-203AB, DO-5, Stud
Operating Temperature - Junction	-65°C ~ 175°C	-65°C ~ 175°C
RoHS Status	RoHS Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both 1N3208 and VS-1N3208 rectifier diodes are listed as active, RoHS compliant, and have an MSL rating of 1 (unlimited). The VS-1N3208 is also REACH unaffected. When selecting between these devices, ensure equivalency based on product status and compliance documentation without introducing criteria not explicitly provided.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to determine if VS-1N3208 is a direct substitute for 1N3208?
A1: Substitution is based on matching maximum reverse voltage, average rectified current, forward voltage drop at specified current, recovery speed, mounting type, package type, and compliance status.

Q2: Are there any differences in package type between 1N3208 and its substitute?
A2: Both diodes are supplied in a DO-203AB (DO-5), chassis, stud mount package.

Q3: Is there any variation in electrical performance that could impact substitution?
A3: All key parameters provided are matched except for the reverse leakage current specification value.

Q4: Are there compliance or environmental certification differences between the parts?
A4: Both are RoHS compliant, and the substitute VS-1N3208 is also REACH unaffected.

Q5: Why is MSL (Moisture Sensitivity Level) relevant in substitution?
A5: MSL assures suitability for storage and handling. Both parts are MSL 1 (unlimited), ensuring consistent performance in this aspect.

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