80EPS12 Equivalent & Substitute Parts

Part Overview

The 80EPS12 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 1200 V DC reverse voltage and 80 A average rectified current in a TO-247AC through-hole package. This component is classified as obsolete, indicating it has been discontinued and is no longer in active production. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	1200 V
Current - Average Rectified (Io)	80 A
Voltage - Forward (Vf) (Max) @ If	1.17 V @ 80 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 1200 V
Mounting Type	Through Hole
Package / Case	TO-247-3
Operating Temperature - Junction	-40°C ~ 150°C

Substitute Part Grouping Explanation

Substitution of the 80EPS12 is determined by strict equivalence across the following critical parameters:

Voltage Rating: DC reverse voltage must equal 1200 V
Current Rating: Average rectified current must equal 80 A
Forward Voltage Drop: Maximum forward voltage must equal 1.17 V @ 80 A
Recovery Speed: Standard recovery characteristics >500ns, > 200mA (Io)
Reverse Leakage: Maximum reverse leakage current must equal 100 µA @ 1200 V
Package Type: TO-247-3 through-hole package required
Operating Temperature Range: -40°C to 150°C junction temperature

The substitute part VS-80APS12-M3 meets all these electrical and mechanical parameters, providing direct functional equivalence to the obsolete 80EPS12.

Parameter Comparison

Parameter	80EPS12	VS-80APS12-M3	Match
Voltage - DC Reverse (Vr) (Max)	1200 V	1200 V	Yes
Current - Average Rectified (Io)	80 A	80 A	Yes
Voltage - Forward (Vf) (Max) @ If	1.17 V @ 80 A	1.17 V @ 80 A	Yes
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Yes
Current - Reverse Leakage @ Vr	100 µA @ 1200 V	100 µA @ 1200 V	Yes
Mounting Type	Through Hole	Through Hole	Yes
Package / Case	TO-247-3	TO-247-3	Yes
Operating Temperature - Junction	-40°C ~ 150°C	-40°C ~ 150°C	Yes
Product Status	Obsolete	Active	Substitute Available
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Improved Compliance

Engineering Selection Recommendations

The VS-80APS12-M3 is the direct substitute for the obsolete 80EPS12. Both components are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications and mechanical packaging.

The VS-80APS12-M3 offers the following advantages:

Active Product Status: Currently in production with substantial inventory availability (210,694 pcs in stock)
RoHS3 Compliance: Meets current environmental and regulatory requirements, whereas the 80EPS12 is RoHS non-compliant
Regulatory Alignment: Both parts maintain REACH Unaffected and EAR99 ECCN classifications
Packaging: Available in tube packaging, suitable for automated assembly and production workflows

The electrical and thermal performance characteristics are identical, ensuring drop-in compatibility in existing circuit designs without modification to PCB layouts, thermal management systems, or application firmware.

Frequently Asked Questions (FAQ)

Q: Can the VS-80APS12-M3 be used as a direct replacement for the 80EPS12?

A: Yes. The VS-80APS12-M3 is electrically and mechanically equivalent to the 80EPS12. All critical parameters—voltage rating, current rating, forward voltage drop, recovery speed, reverse leakage, package type, and operating temperature range—are identical. The component is a direct drop-in substitute.

Q: What is the difference between the 80EPS12 and VS-80APS12-M3?

A: The primary differences are product status and regulatory compliance. The 80EPS12 is obsolete and RoHS non-compliant. The VS-80APS12-M3 is an active product with ROHS3 compliance. Electrical performance and physical packaging are identical.

Q: Are there any thermal or electrical performance differences?

A: No. Both components operate within the same temperature range (-40°C to 150°C junction temperature) and deliver identical electrical characteristics, including forward voltage drop (1.17 V @ 80 A) and reverse leakage current (100 µA @ 1200 V).

Q: What packaging options are available for the substitute part?

A: The VS-80APS12-M3 is supplied in tube packaging, which is standard for high-volume production and automated assembly processes. The 80EPS12 packaging specification was not provided in the original documentation.

Q: Does the substitute part require any circuit design modifications?

A: No. The VS-80APS12-M3 maintains the same TO-247-3 through-hole package configuration, electrical ratings, and thermal characteristics. No changes to PCB layout, thermal design, or circuit topology are required.

Q: What is the inventory status of the substitute part?

A: The VS-80APS12-M3 has 210,694 pieces in stock as new original inventory, ensuring reliable availability for production requirements.

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