Equivalent & Substitute Parts for 40EPF02

Part Overview

The 40EPF02 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 40 A average rectified current in a TO-247AC Modified through-hole package. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity. Substitute parts listed below maintain electrical compatibility within specified parameter ranges while offering improved availability and compliance status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	40	A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 40 A	V
Reverse Recovery Time (trr)	180	ns
Current - Reverse Leakage @ Vr	100 µA @ 200 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	TO-247-2	—
Operating Temperature - Junction	-40 to 150	°C

Substitute Part Grouping Explanation

Substitute parts for the 40EPF02 are identified based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: TO-247-2 (exact match required)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io) (exact match required)

Secondary Compatibility Parameters:

Current - Average Rectified (Io): Equal to or greater than 40 A
Voltage - Forward (Vf) (Max) @ If: Equal to or less than 1.25 V at rated current
Reverse Recovery Time (trr): Equal to or less than 180 ns
Current - Reverse Leakage @ Vr: Equal to or less than 100 µA @ 200 V
Operating Temperature - Junction: Range must encompass or exceed -40°C to 150°C

Substitute parts meeting all primary criteria and maintaining secondary parameters within acceptable ranges are classified as direct electrical equivalents. Parts exceeding current ratings or improving performance characteristics remain compatible for applications requiring the 40EPF02.

Parameter Comparison

Parameter	40EPF02 (Vishay)	VS-40EPF02-M3 (Vishay)	APT30D20BG (Microchip)	DSEI60-02A (IXYS)
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	40 A	40 A	30 A	69 A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 40 A	1.25 V @ 40 A	1.3 V @ 30 A	1.08 V @ 60 A
Reverse Recovery Time (trr)	180 ns	180 ns	24 ns	50 ns
Current - Reverse Leakage @ Vr	100 µA @ 200 V	100 µA @ 200 V	250 µA @ 200 V	50 µA @ 200 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-247-2	TO-247-2	TO-247-2	TO-247-2
Supplier Device Package	TO-247AC Modified	TO-247AC Modified	TO-247 [B]	TO-247AD
Operating Temperature - Junction	-40 to 150°C	-40 to 150°C	-55 to 175°C	-40 to 150°C
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-40EPF02-M3 (Vishay General Semiconductor - Diodes Division)

The VS-40EPF02-M3 is a parametric equivalent to the 40EPF02, offering identical electrical specifications and package configuration. This part is manufactured by the same supplier as the original component and maintains all key performance characteristics including 200 V reverse voltage, 40 A average rectified current, 1.25 V forward voltage drop, and 180 ns reverse recovery time. The VS-40EPF02-M3 is classified as active product status with ROHS3 compliance, providing improved procurement availability and regulatory alignment compared to the obsolete 40EPF02. This part is the direct replacement for applications requiring exact electrical and thermal performance matching.

APT30D20BG (Microchip Technology)

The APT30D20BG is a substitute part manufactured by Microchip Technology, maintaining the 200 V reverse voltage rating and TO-247-2 package configuration. This part is rated for 30 A average rectified current, which is below the 40 A specification of the 40EPF02. The APT30D20BG exhibits improved reverse recovery time performance at 24 ns compared to 180 ns for the original part, and operates across an extended temperature range of -55°C to 175°C. This part is suitable for applications where current requirements do not exceed 30 A and where improved switching performance is beneficial. ROHS3 compliance and active product status support long-term availability.

DSEI60-02A (IXYS)

The DSEI60-02A is a substitute part manufactured by IXYS, maintaining the 200 V reverse voltage rating and TO-247-2 package configuration. This part is rated for 69 A average rectified current, exceeding the 40 A specification of the 40EPF02. The DSEI60-02A exhibits superior performance characteristics including 1.08 V forward voltage drop at 60 A, 50 ns reverse recovery time, and 50 µA reverse leakage current at 200 V. These improvements result in reduced power dissipation and faster switching response. ROHS3 compliance and active product status ensure regulatory alignment and procurement continuity. This part is suitable for applications where the 40 A current requirement can be met by a higher-rated device and where improved electrical performance is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the VS-40EPF02-M3 be used as a direct replacement for the 40EPF02?

A: Yes. The VS-40EPF02-M3 is a parametric equivalent with identical voltage rating (200 V), current rating (40 A), forward voltage drop (1.25 V @ 40 A), reverse recovery time (180 ns), and package configuration (TO-247-2). Both parts are manufactured by Vishay General Semiconductor - Diodes Division. The primary difference is product status and compliance: VS-40EPF02-M3 is active and ROHS3 compliant, while 40EPF02 is obsolete and RoHS non-compliant.

Q: Is the APT30D20BG suitable for all applications using the 40EPF02?

A: The APT30D20BG is suitable only for applications where the average rectified current requirement does not exceed 30 A. The 40EPF02 is rated for 40 A, and the APT30D20BG is rated for 30 A. Applications requiring the full 40 A capability must use either the VS-40EPF02-M3 or DSEI60-02A. The APT30D20BG offers improved reverse recovery time (24 ns versus 180 ns) and extended operating temperature range (-55°C to 175°C versus -40°C to 150°C).

Q: What are the advantages of using the DSEI60-02A over the 40EPF02?

A: The DSEI60-02A provides higher current capacity (69 A versus 40 A), lower forward voltage drop (1.08 V @ 60 A versus 1.25 V @ 40 A), faster reverse recovery time (50 ns versus 180 ns), and lower reverse leakage current (50 µA versus 100 µA at 200 V). These characteristics result in reduced power dissipation and improved switching performance. The DSEI60-02A is active product with ROHS3 compliance.

Q: Are all substitute parts available in the same package configuration?

A: All substitute parts use the TO-247-2 package case and through-hole mounting type, matching the 40EPF02 mechanical configuration. However, supplier device packages differ: 40EPF02 uses TO-247AC Modified, VS-40EPF02-M3 uses TO-247AC Modified, APT30D20BG uses TO-247 [B], and DSEI60-02A uses TO-247AD. These variations represent different pin configurations within the TO-247-2 family and must be verified against specific board layout requirements.

Q: What is the impact of reverse recovery time differences on circuit performance?

A: Reverse recovery time (trr) affects switching speed and switching losses in rectifier applications. The 40EPF02 and VS-40EPF02-M3 have 180 ns trr, while APT30D20BG has 24 ns and DSEI60-02A has 50 ns. Faster reverse recovery reduces switching losses and allows higher switching frequencies. Applications operating at high switching frequencies benefit from lower trr values. Applications with lower switching frequency requirements are less sensitive to trr differences.

Q: Are all substitute parts RoHS compliant?

A: The 40EPF02 is RoHS non-compliant. All substitute parts (VS-40EPF02-M3, APT30D20BG, and DSEI60-02A) are ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q: What is the significance of reverse leakage current differences?

A: Reverse leakage current affects standby power consumption and thermal performance. The 40EPF02 has 100 µA leakage at 200 V, VS-40EPF02-M3 has 100 µA, APT30D20BG has 250 µA, and DSEI60-02A has 50 µA. Lower leakage current reduces standby power dissipation. Applications with stringent standby power requirements benefit from lower leakage specifications.

Q: Can substitute parts with higher current ratings be used in place of the 40EPF02?

A: Yes. The DSEI60-02A is rated for 69 A, exceeding the 40 A requirement of the 40EPF02. Higher current-rated devices are compatible with applications designed for lower current requirements, provided all other electrical parameters (voltage, temperature, package) are met or exceeded. The DSEI60-02A maintains the 200 V voltage rating and TO-247-2 package configuration.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message