Equivalent & Substitute Parts Reference: FMEN-210B

Part Overview

The FMEN-210B, manufactured by Sanken Electric USA Inc., is a diode array designed for rectification applications. It features a 1 pair common cathode Schottky configuration, a maximum DC reverse voltage of 150 V, and an average rectified current rating of 10A per diode. The device mounts through hole in a TO-220-3 Full Pack package. The product is currently classified as obsolete, necessitating the identification and selection of alternative component models with directly comparable electrical and mechanical parameters to ensure continuity in design and repair operations.

Key Parameters

Manufacturer Part Number	Technology	Diode Configuration	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case	Supplier Device Package	RoHS Status
FMEN-210B	Schottky	1 Pair Common Cathode	150 V	10A	920 mV @ 5 A	Fast Recovery =< 500ns, > 200mA (Io)	100 µA @ 150 V	-40°C ~ 150°C	Through Hole	TO-220-3 Full Pack	TO-220F	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts are selected strictly on matching key electrical and mechanical parameters as defined for the FMEN-210B. Specifically, substitute identification requires: Schottky diode technology, identical diode configuration (1 pair common cathode), a maximum DC reverse voltage rating of 150 V, through hole mounting type, TO-220-3 Full Pack package configuration, and comparable current and voltage ratings. Only parts with RoHS-compliant status and identical or greater temperature ratings are considered. Substitutes are grouped as direct and similar based on the average rectified current rating per diode.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Technology	Diode Configuration	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case	Supplier Device Package	RoHS Status
FMEN-210B	Sanken Electric USA Inc.	Schottky	1 Pair Common Cathode	150 V	10A	920 mV @ 5 A	Fast Recovery =< 500ns, > 200mA (Io)	100 µA @ 150 V	-40°C ~ 150°C	Through Hole	TO-220-3 Full Pack	TO-220F	RoHS Compliant
STPS20150CFP	STMicroelectronics	Schottky	1 Pair Common Cathode	150 V	10A	920 mV @ 10 A	Fast Recovery =< 500ns, > 200mA (Io)	5 µA @ 150 V	175°C (Max)	Through Hole	TO-220-3 Full Pack	TO-220FP	ROHS3 Compliant
STPS10150CFP	STMicroelectronics	Schottky	1 Pair Common Cathode	150 V	5A	920 mV @ 5 A	Fast Recovery =< 500ns, > 200mA (Io)	2 µA @ 150 V	175°C (Max)	Through Hole	TO-220-3 Full Pack	TO-220FP	ROHS3 Compliant

Engineering Selection Recommendations

FMEN-210B is classified as obsolete; alternatives must be selected based on identical diode configuration, Schottky technology, matching voltage and current ratings, and equivalent package. Both STPS20150CFP and STPS10150CFP comply with RoHS requirements and have compatible mechanical form factors. STPS20150CFP matches the current rating and should be preferred when 10A operation is necessary. STPS10150CFP is suitable for designs where a 5A average rectified current rating suffices. Both substitutes offer compatible mounting and package options as indicated.

Frequently Asked Questions (FAQ)

Q1: What key parameters must be matched when substituting diode arrays such as FMEN-210B?
A1: Substitution requires matching technology type (Schottky), diode configuration (1 pair common cathode), voltage rating (150 V), average rectified current (per diode), mounting type (through hole), and package (TO-220-3 Full Pack).

Q2: How important is the package compatibility for replacement?
A2: Mechanical compatibility is critical. All substitutes use the TO-220-3 Full Pack format with through hole mounting, ensuring direct replacement within existing PCB layouts.

Q3: Can a part with a lower current rating be used as a substitute?
A3: Only if the application current requirements do not exceed the substitute’s rating. For applications requiring 10A average rectified current, the STPS20150CFP matches the original FMEN-210B specification.

Q4: What RoHS compliance considerations are relevant for substitution?
A4: All listed substitutes are RoHS compliant, meeting current environmental and regulatory requirements for electronic components.

Q5: Are there differences in reverse leakage or operating temperature ranges among substitutes?
A5: Both STPS20150CFP and STPS10150CFP offer lower reverse leakage and higher maximum operating junction temperatures compared to FMEN-210B, while retaining electrical compatibility.

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