UH6PJHM3_A/I Equivalent & Substitute Parts

Part Overview

The UH6PJHM3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 6 A average rectified current in a surface mount TO-277A (SMPC) package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing production and maintenance applications. The part carries automotive-grade qualification (AEC-Q101) and is RoHS3 compliant.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	3 V @ 6 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	25 ns
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 175°C
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UH6PJHM3_A/I is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
Grade: Automotive
Qualification: AEC-Q101

Allowable Variation Parameters:

Current - Average Rectified (Io): Equal or greater than 6 A
Voltage - Forward (Vf) (Max) @ If: Equal or lower than 3 V @ 6 A
Reverse Recovery Time (trr): Equal or lower than 25 ns
Current - Reverse Leakage @ Vr: Equal or lower than 10 µA @ 600 V
Operating Temperature - Junction: Equal or wider range than -55°C ~ 175°C

Substitute parts are classified into two categories:

MFR Recommended Substitutes: Parts recommended by the original manufacturer as direct replacements, maintaining identical electrical and mechanical specifications or offering improved performance characteristics.

Parametric Equivalents: Parts from alternative manufacturers that meet or exceed the electrical specifications and maintain package compatibility, though they may not be manufacturer-recommended direct replacements.

Parameter Comparison

Parameter	UH6PJHM3_A/I (Main)	VS-6ESH06HM3/87A (MFR Recommended)	FES10J (MFR Recommended)	TPUH6J S1G (Parametric Equivalent)
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	onsemi	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	6 A	6 A	10 A	6 A
Voltage - Forward (Vf) (Max) @ If	3 V @ 6 A	1.8 V @ 6 A	1.8 V @ 10 A	3 V @ 6 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	25 ns	40 ns	30 ns	45 ns
Current - Reverse Leakage @ Vr	10 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)	TO-277-3	TO-277A (SMPC)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C
Grade	Automotive	Automotive	Automotive	Not specified
Qualification	AEC-Q101	AEC-Q101	AEC-Q101	Not specified
Product Status	Obsolete	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-6ESH06HM3/87A (Vishay General Semiconductor - Diodes Division)

This part is the manufacturer-recommended substitute for the UH6PJHM3_A/I. It maintains identical voltage and current ratings while offering improved performance characteristics: forward voltage is reduced to 1.8 V @ 6 A (compared to 3 V @ 6 A), and reverse leakage current is reduced to 5 µA @ 600 V (compared to 10 µA @ 600 V). The part carries active product status, AEC-Q101 automotive qualification, and RoHS3 compliance. Operating temperature range extends to -65°C, providing wider thermal coverage. This part is the primary selection for direct replacement in new designs and ongoing production.

FES10J (onsemi)

This part is a manufacturer-recommended substitute with higher current capacity (10 A versus 6 A) and identical voltage rating (600 V). It maintains fast recovery characteristics and automotive-grade qualification (AEC-Q101). However, the product status is classified as "Not For New Designs," limiting its application to legacy system maintenance or where higher current capacity is required. The reverse recovery time is 30 ns, which is acceptable within the allowable variation range. This part is suitable for applications requiring current ratings above 6 A in existing systems.

TPUH6J S1G (Taiwan Semiconductor Corporation)

This part is a parametric equivalent offering identical current (6 A) and voltage (600 V) ratings with matching forward voltage characteristics (3 V @ 6 A). It maintains surface mount TO-277A packaging and RoHS3 compliance. The part carries active product status and provides higher inventory availability (18,688 pcs). However, automotive-grade qualification and AEC-Q101 certification are not specified. This part is suitable for non-automotive applications or where automotive qualification is not required. The reverse recovery time of 45 ns exceeds the main part specification but remains within fast recovery classification.

Frequently Asked Questions (FAQ)

Q: Can VS-6ESH06HM3/87A be used as a direct replacement for UH6PJHM3_A/I?

A: Yes. VS-6ESH06HM3/87A is the manufacturer-recommended substitute. It maintains identical voltage (600 V) and current (6 A) ratings, identical package (TO-277A SMPC), and automotive qualification (AEC-Q101). The improved forward voltage (1.8 V versus 3 V) and reduced reverse leakage (5 µA versus 10 µA) represent performance enhancements. The part is in active production status.

Q: What is the difference between FES10J and the main part UH6PJHM3_A/I?

A: FES10J has a higher current rating (10 A versus 6 A) while maintaining the same voltage rating (600 V). Both parts use identical packaging (TO-277, 3-PowerDFN) and carry AEC-Q101 automotive qualification. FES10J is classified as "Not For New Designs," making it suitable for legacy system maintenance where higher current capacity is beneficial.

Q: Is TPUH6J S1G suitable for automotive applications?

A: TPUH6J S1G does not carry specified automotive-grade qualification or AEC-Q101 certification. While it meets the electrical specifications of the main part (600 V, 6 A, 3 V forward voltage), it is not qualified for automotive use. This part is suitable for industrial and consumer applications where automotive qualification is not required.

Q: Are all substitute parts in the same package?

A: All substitute parts use the TO-277, 3-PowerDFN package family. The main part and VS-6ESH06HM3/87A use TO-277A (SMPC) supplier device package, while FES10J uses TO-277-3 supplier device package. These are mechanically and electrically compatible within the TO-277 family.

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

A: The main part specifies 25 ns reverse recovery time. VS-6ESH06HM3/87A has 40 ns, FES10J has 30 ns, and TPUH6J S1G has 45 ns. All substitute parts remain within the fast recovery classification (≤ 500ns, > 200mA). The differences represent acceptable variation in switching characteristics and do not prevent substitution in standard rectification applications.

Q: Which substitute part has the best availability?

A: TPUH6J S1G has the highest inventory availability at 18,688 pcs. VS-6ESH06HM3/87A has 761 pcs, and FES10J has 1,031 pcs. Availability should be evaluated against application requirements for automotive qualification and product status.

Q: Can forward voltage differences affect circuit performance?

A: Forward voltage differences between parts are within acceptable ranges for rectifier applications. The main part and TPUH6J S1G both specify 3 V @ 6 A, while VS-6ESH06HM3/87A and FES10J specify 1.8 V @ 6 A and 1.8 V @ 10 A respectively. Lower forward voltage reduces power dissipation and heat generation, representing a performance improvement in VS-6ESH06HM3/87A and FES10J.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts (UH6PJHM3_A/I, VS-6ESH06HM3/87A, FES10J, and TPUH6J S1G) are RoHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message