FSV1550V Equivalent & Substitute Parts

Part Overview

The FSV1550V is a Schottky rectifier diode manufactured by onsemi, rated for 50V DC reverse voltage and 15A average rectified current in a Surface Mount TO-277-3 package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations currently using FSV1550V in production or maintenance applications require qualified substitute components that maintain electrical and mechanical compatibility while offering active product status and continued supplier support.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	15	A
Voltage - Forward (Vf) (Max) @ If	510 mV @ 15 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	320	µA @ 50 V
Capacitance @ Vr, F	824	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 155	°C
Package / Case	TO-277, 3-PowerDFN	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the FSV1550V is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50V
Current - Average Rectified (Io): Must equal or exceed 15A
Technology: Schottky rectifier diode
Package / Case: TO-277, 3-PowerDFN form factor
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Operating Temperature Range: Must accommodate application requirements
RoHS Compliance: ROHS3 Compliant status
Moisture Sensitivity Level: MSL 1 (Unlimited)

The substitute parts listed below are grouped based on their ability to meet these criteria within acceptable electrical parameter tolerances.

Parameter Comparison

Parameter	FSV1550V (onsemi)	SVM1550V_R1_00001 (Panjit)	V15PL50-M3/86A (Vishay)	PMEG045T050EPDZ (Nexperia)
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	45 V
Current - Average Rectified (Io)	15 A	15 A	6 A	5 A
Voltage - Forward (Vf) (Max) @ If	510 mV @ 15 A	510 mV @ 15 A	570 mV @ 15 A	465 mV @ 5 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	320 µA @ 50 V	320 µA @ 50 V	800 µA @ 50 V	44 µA @ 45 V
Operating Temperature - Junction (Max)	155°C	150°C	150°C	175°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent:

The SVM1550V_R1_00001 manufactured by Panjit International Inc. is the direct electrical equivalent to the FSV1550V. Both components share identical voltage ratings (50V), current ratings (15A), forward voltage characteristics (510 mV @ 15 A), and reverse leakage specifications (320 µA @ 50 V). The SVM1550V_R1_00001 maintains the same TO-277, 3-PowerDFN package configuration and is currently in Active product status with full supplier support. This component is the primary substitute for direct replacement applications.

Partial Substitutes:

The V15PL50-M3/86A from Vishay General Semiconductor maintains the 50V reverse voltage rating and TO-277, 3-PowerDFN package compatibility. However, its 6A current rating is below the FSV1550V specification of 15A. This component is suitable only for applications where the actual circuit current requirement does not exceed 6A. The PMEG045T050EPDZ from Nexperia USA Inc. has a reduced reverse voltage rating of 45V and current rating of 5A, making it unsuitable for circuits requiring the full 50V/15A specifications of the FSV1550V.

Compliance and Support:

All substitute components listed maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and active product status. The SVM1550V_R1_00001 and V15PL50-M3/86A both support operating temperature ranges of -55°C to 150°C, which covers the majority of industrial applications. The PMEG045T050EPDZ offers an extended maximum junction temperature of 175°C and includes AEC-Q101 automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can the SVM1550V_R1_00001 be used as a direct replacement for FSV1550V?

A: Yes. The SVM1550V_R1_00001 is electrically and mechanically equivalent to the FSV1550V. Both components have identical 50V reverse voltage, 15A current ratings, 510 mV forward voltage at 15A, and 320 µA reverse leakage specifications. The TO-277, 3-PowerDFN package is identical, and both are ROHS3 compliant with MSL 1 rating.

Q: Why is the V15PL50-M3/86A listed as a substitute if it has only 6A current rating?

A: The V15PL50-M3/86A is listed as a partial substitute for applications where the actual circuit current requirement does not exceed 6A. While it maintains the 50V reverse voltage rating and identical package configuration, it cannot support the full 15A specification of the FSV1550V. Circuit analysis is required to determine if this component is suitable for specific applications.

Q: Is the PMEG045T050EPDZ suitable for FSV1550V replacement?

A: The PMEG045T050EPDZ is not suitable as a substitute for the FSV1550V. Its 45V reverse voltage rating is below the FSV1550V specification of 50V, and its 5A current rating is significantly lower than the required 15A. This component is listed for reference only and should not be used in applications requiring FSV1550V specifications.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are: (1) Voltage - DC Reverse (Vr) must equal or exceed 50V, (2) Current - Average Rectified (Io) must equal or exceed 15A, (3) Technology must be Schottky rectifier diode, (4) Package must be TO-277, 3-PowerDFN, and (5) Speed must be Fast Recovery ≤ 500ns, > 200mA (Io). All substitute components must meet these minimum specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute components listed (SVM1550V_R1_00001, V15PL50-M3/86A, and PMEG045T050EPDZ) are ROHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity rating, matching the FSV1550V compliance profile.

Q: What is the difference in operating temperature ranges between substitutes?

A: The FSV1550V has a maximum junction temperature of 155°C. The SVM1550V_R1_00001 and V15PL50-M3/86A both support -55°C to 150°C, which is 5°C lower at the maximum. The PMEG045T050EPDZ supports up to 175°C maximum junction temperature. For applications operating near the upper temperature limit, the PMEG045T050EPDZ offers extended thermal capability, though its lower voltage and current ratings must be considered.

Q: Can multiple V15PL50-M3/86A components be paralleled to achieve 15A capability?

A: Paralleling Schottky diodes is not a standard engineering practice for current multiplication due to unequal current distribution characteristics inherent to Schottky technology. The SVM1550V_R1_00001 is the recommended solution for 15A applications.

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