1SS400CST2RA Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor 1SS400CST2RA is a surface-mount, general-purpose small signal diode rated for 80V reverse voltage and 100mA average rectified current. It features fast 4ns reverse recovery time, low reverse leakage, and comes in a VMN2 (SOD-923) package. The part is active and compliant with RoHS3 and REACH regulations. When managing designs requiring supply chain agility, identifying substitute models is essential to ensure continued availability, maintain manufacturing schedules, and satisfy compliance and qualification needs.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Capacitance @ Vr, F	Mounting Type	Package / Case	Supplier Device Package	Operating Temperature - Junction	RoHS Status	REACH Status	Moisture Sensitivity Level (MSL)	Product Status	Series
1SS400CST2RA	Rohm Semiconductor	Diodes, Rectifiers	Standard	80 V	100 mA	1.2 V @ 100 mA	4 ns	100 nA @ 80 V	3pF @ 0.5V, 1MHz	Surface Mount	2-SMD, Flat Lead	VMN2 (SOD-923)	150°C (Max)	ROHS3 Compliant	REACH Unaffected	1 (Unlimited)	Active	-

Substitute Part Grouping Explanation

Substitute parts are identified exclusively based on matching the following key parameters: technology, maximum reverse voltage, average rectified current, forward voltage at specified current, reverse recovery time, reverse leakage current at rated voltage, capacitance at test conditions, mounting type, package/case, supplier device package, thermal rating, and compliance status (RoHS, REACH, MSL). Substitute models provided are functionally and mechanically equivalent according to these criteria.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Capacitance @ Vr, F	Mounting Type	Package / Case	Supplier Device Package	Operating Temperature - Junction	RoHS Status	REACH Status	Moisture Sensitivity Level (MSL)	Product Status	Series
1SS400CST2RA	Rohm Semiconductor	Diodes, Rectifiers	Standard	80 V	100 mA	1.2 V @ 100 mA	4 ns	100 nA @ 80 V	3pF @ 0.5V, 1MHz	Surface Mount	2-SMD, Flat Lead	VMN2 (SOD-923)	150°C (Max)	ROHS3 Compliant	REACH Unaffected	1 (Unlimited)	Active	-
1SS400CMT2R	Rohm Semiconductor	Diodes, Rectifiers	Standard	80 V	100 mA	1.2 V @ 100 mA	4 ns	100 nA @ 80 V	3pF @ 500mV, 1MHz	Surface Mount	2-SMD, Flat Lead	VMN2M (SOD-923)	150°C	ROHS3 Compliant	REACH Unaffected	1 (Unlimited)	Active	-
1SS400CSFHT2RA	Rohm Semiconductor	Diodes, Rectifiers	Standard	80 V	100 mA	1.2 V @ 100 mA	4 ns	100 nA @ 80 V	3pF @ 500mV, 1MHz	Surface Mount	2-SMD, Flat Lead	VMN2 (SOD-923)	150°C (Max)	ROHS3 Compliant	REACH Unaffected	1 (Unlimited)	Not For New Designs	-

Engineering Selection Recommendations

When selecting a substitute for 1SS400CST2RA, engineering choices should be governed by product status and compliance. Both 1SS400CMT2R and 1SS400CSFHT2RA are ROHS3 Compliant, REACH Unaffected, and have Moisture Sensitivity Level 1 (Unlimited). 1SS400CMT2R holds an active product status; 1SS400CSFHT2RA is flagged as Not For New Designs, impacting its suitability for new product introductions. The 1SS400CSFHT2RA provides AEC-Q101 automotive qualification, which should be considered if required by application standards.

Frequently Asked Questions (FAQ)

Q1: What parameters ensure compatibility between 1SS400CST2RA and its substitutes?
A1: Compatibility is determined by matching technology, maximum reverse voltage, average rectified current, forward voltage at test current, reverse recovery time, reverse leakage, capacitance at test voltage/frequency, mounting type, package/case, and supplier device package.

Q2: Can all substitutes use the same PCB footprint as 1SS400CST2RA?
A2: All listed substitute parts are specified as surface mount in a 2-SMD, Flat Lead configuration and utilize VMN2, VMN2M, or SOD-923 packages, which comply with standard SOD-923 PCB footprints.

Q3: Is there any difference in reliability or compliance among these models?
A3: All models provided are ROHS3 Compliant, REACH Unaffected, and have Moisture Sensitivity Level 1. The 1SS400CSFHT2RA adds AEC-Q101 qualification for automotive reliability; status for new design suitability is indicated.

Q4: Does product status affect substitute selection?
A4: Product status such as “Active” or “Not For New Designs” directly informs qualification for ongoing or new projects. Models not recommended for new designs should not be selected for new projects.

Q5: How should differences in “Supplier Device Package” (e.g., VMN2 vs. VMN2M) be addressed?
A5: Only packages explicitly stating SOD-923 (VMN2 or VMN2M) are included; design review should confirm compatibility where supplier device package suffix differs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message