Equivalent & Substitute Parts for 30EPF02

Part Overview

The 30EPF02 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 30 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 must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging and compliance standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	30	A
Voltage - Forward (Vf) (Max) @ If	1.41	V @ 30 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	160	ns
Current - Reverse Leakage @ Vr	100	µA @ 200 V
Mounting Type	Through Hole	—
Package / Case	TO-247-2	—
Operating Temperature - Junction	-40 to 150	°C
RoHS Status	Non-compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 30EPF02 are identified based on the following critical electrical and mechanical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 30 A minimum
Mounting Type: Through Hole
Package / Case: TO-247-2 footprint compatibility
Technology: Standard rectifier diode

Secondary Compatibility Factors:

Forward voltage drop (Vf) at rated current
Reverse recovery time (trr)
Reverse leakage current
Operating temperature range
RoHS and regulatory compliance status

Substitute parts are grouped into two categories: parametric equivalents (matching the 30 A current rating) and manufacturer-recommended alternatives (exceeding the 30 A rating while maintaining voltage and package compatibility).

Parameter Comparison

Parameter	30EPF02	VS-30EPF02-M3	APT30D20BG	DSEI60-02A
Manufacturer	Vishay	Vishay	Microchip Technology	IXYS
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	30 A	30 A	30 A	69 A
Voltage - Forward (Vf) (Max) @ If	1.41 V @ 30 A	1.41 V @ 30 A	1.3 V @ 30 A	1.08 V @ 60 A
Reverse Recovery Time (trr)	160 ns	60 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
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	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-30EPF02-M3 (Vishay General Semiconductor - Diodes Division)

This part is a parametric equivalent to the 30EPF02, maintaining identical voltage and current ratings with the same TO-247AC Modified package configuration. The VS-30EPF02-M3 is currently in active production status and is ROHS3 compliant, addressing the regulatory limitations of the obsolete 30EPF02. The reverse recovery time is improved (60 ns versus 160 ns), resulting in reduced switching losses. This substitute is the direct replacement for applications requiring no design modification.

APT30D20BG (Microchip Technology)

This part matches the 30 A current rating and 200 V voltage specification with a standard TO-247 [B] package footprint compatible with TO-247-2 mounting. The APT30D20BG offers superior performance characteristics including lower forward voltage (1.3 V versus 1.41 V) and significantly faster reverse recovery time (24 ns). The extended operating temperature range (-55 to 175 °C) provides thermal margin for demanding applications. ROHS3 compliance is confirmed. Pin-to-pin compatibility with TO-247-2 footprint allows direct substitution in existing PCB layouts.

DSEI60-02A (IXYS)

This part exceeds the 30 A current specification at 69 A average rectified current while maintaining the 200 V voltage rating and TO-247-2 package footprint. The DSEI60-02A is suitable for applications where current margin or thermal derating is required. Forward voltage is lower (1.08 V @ 60 A) and reverse recovery time is faster (50 ns), improving efficiency. Reverse leakage current is reduced (50 µA). ROHS3 compliance is confirmed. This substitute provides design flexibility for higher-current or thermally constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the VS-30EPF02-M3 be used as a direct replacement for the 30EPF02?

A: Yes. The VS-30EPF02-M3 maintains identical electrical specifications (200 V, 30 A, 1.41 V forward voltage) and uses the same TO-247AC Modified package. Both parts are through-hole mounted with TO-247-2 footprint compatibility. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant). No circuit redesign is required.

Q: What are the package differences between TO-247AC Modified, TO-247 [B], and TO-247AD?

A: All three variants use the TO-247-2 footprint with identical pin spacing and mounting hole locations, ensuring mechanical compatibility on standard PCB layouts. The designations (AC Modified, [B], AD) indicate manufacturer-specific lead frame or internal construction variations. These differences do not affect electrical performance or mechanical fit in applications designed for TO-247-2 packages.

Q: Is the DSEI60-02A suitable for a 30 A application?

A: Yes. The DSEI60-02A is rated for 69 A average rectified current, which exceeds the 30 A requirement. At 30 A operation, the part operates well within its current rating, resulting in lower junction temperature and extended component life. The 200 V voltage specification matches the application requirement. This part is appropriate for designs where thermal margin or future current growth is anticipated.

Q: How does reverse recovery time affect circuit performance?

A: Reverse recovery time (trr) determines the duration during which the diode conducts in the reverse direction after the applied voltage reverses. Shorter trr values reduce switching losses and electromagnetic interference. The 30EPF02 has trr of 160 ns, while substitutes range from 24 ns (APT30D20BG) to 60 ns (VS-30EPF02-M3). In high-frequency switching applications, faster recovery times improve efficiency. In low-frequency rectification circuits, this parameter has minimal impact.

Q: Are all substitute parts RoHS compliant?

A: The 30EPF02 is RoHS non-compliant. All three substitute parts (VS-30EPF02-M3, APT30D20BG, DSEI60-02A) are ROHS3 compliant. If RoHS compliance is required for the application or end-market, any of the three substitutes satisfy this requirement.

Q: What is the significance of forward voltage differences between parts?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. The 30EPF02 has Vf of 1.41 V @ 30 A. The APT30D20BG has lower Vf (1.3 V @ 30 A), reducing power dissipation and heat generation. The DSEI60-02A has the lowest Vf (1.08 V @ 60 A), providing the greatest efficiency improvement. In high-current or thermally constrained designs, lower forward voltage reduces component temperature rise and improves overall circuit efficiency.

Q: Can reverse leakage current differences affect circuit operation?

A: Reverse leakage current flows when the diode is reverse-biased. The 30EPF02 has 100 µA @ 200 V leakage. The APT30D20BG has higher leakage (250 µA @ 200 V), while the DSEI60-02A has lower leakage (50 µA @ 200 V). In DC power supply filtering or precision analog circuits, lower leakage current reduces standby power consumption and improves circuit stability. In standard rectification applications, leakage current differences have negligible impact on performance.

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