S4PDHM3_A/H Equivalent & Substitute Parts

Part Overview

The S4PDHM3_A/H is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 4 A average rectified current in a surface mount TO-277A (SMPC) package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and design requirements. Substitute parts maintain identical electrical and mechanical specifications while offering improved availability and active product status.

Substiute Parts

S4PDHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 794S4PDHM3_A/H Datasheet

Current PartRFQ

S4PDHM3_B/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1037S4PDHM3_B/H Datasheet

MFR RecommendedRFQ

S4PD-M3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 5693S4PD-M3/86A Datasheet

Parametric EquivalentRFQ

S4PD-M3/87A

Vishay General Semiconductor - Diodes DivisionIn Stock: 982S4PD-M3/87A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S4PDHM3_A/H is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 4 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 4 A
• Reverse Recovery Time (trr): 2.5 µs
• Current - Reverse Leakage @ Vr: 10 µA @ 200 V
• Capacitance @ Vr, F: 30 pF @ 4V, 1MHz

Mechanical & Environmental Specifications:

• Package / Case: TO-277, 3-PowerDFN
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C
• Grade: Automotive
• Qualification: AEC-Q101

All substitute parts listed maintain identical values across these parameters. The primary distinction between the main part and substitutes is product status (obsolete versus active) and packaging configuration (bulk versus Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

S4PDHM3_B/H is the manufacturer-recommended substitute for the obsolete S4PDHM3_A/H. This part maintains full electrical and mechanical equivalence while offering active product status and improved availability. The primary distinction is packaging configuration (Tape & Reel versus bulk), which does not affect electrical performance or board-level compatibility. This part is recommended for direct replacement in new designs and production transitions.

S4PD-M3/86A and S4PD-M3/87A are parametric equivalents that provide identical electrical performance and mechanical compatibility. Both parts are active and available in Tape & Reel packaging. These alternatives offer higher inventory levels and serve as secondary options when the manufacturer-recommended substitute is unavailable. All three substitute parts comply with RoHS3 and REACH requirements where specified.

Selection between substitute parts should be based on availability, packaging requirements, and supply chain considerations. All listed substitutes are electrically and mechanically interchangeable with the S4PDHM3_A/H within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can S4PDHM3_B/H be used as a direct replacement for S4PDHM3_A/H?

A: Yes. S4PDHM3_B/H is electrically and mechanically identical to S4PDHM3_A/H across all critical parameters including voltage rating, current rating, forward voltage, reverse recovery time, and operating temperature range. The primary difference is product status (active versus obsolete) and packaging format (Tape & Reel versus bulk).

Q: What are the key electrical parameters that define substitution for this diode?

A: Substitution is determined by equivalence in: Voltage - DC Reverse (Vr) (Max) of 200 V, Current - Average Rectified (Io) of 4 A, Voltage - Forward (Vf) (Max) of 1.1 V @ 4 A, Reverse Recovery Time (trr) of 2.5 µs, Current - Reverse Leakage @ Vr of 10 µA @ 200 V, and Capacitance @ Vr, F of 30 pF @ 4V, 1MHz.

Q: Are all substitute parts suitable for automotive applications?

A: S4PDHM3_B/H is explicitly rated for automotive grade with AEC-Q101 qualification. S4PD-M3/86A and S4PD-M3/87A do not specify automotive grade or AEC-Q101 qualification in the provided data. For automotive applications requiring AEC-Q101 compliance, S4PDHM3_B/H is the appropriate selection.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging (S4PDHM3_A/H) is supplied in standard containers for manual handling. Tape & Reel packaging (S4PDHM3_B/H, S4PD-M3/86A, S4PD-M3/87A) is supplied on continuous tape for automated pick-and-place assembly. Both packaging formats contain identical components with no electrical or mechanical differences.

Q: Are there any compliance differences between the substitute parts?

A: S4PDHM3_B/H maintains the same RoHS3 compliance, Moisture Sensitivity Level (MSL) 1, and REACH Unaffected status as the original S4PDHM3_A/H. S4PD-M3/86A and S4PD-M3/87A also maintain RoHS3 compliance and MSL 1 status. All parts are compliant with EAR99 export classification.

Q: Can S4PD-M3/86A or S4PD-M3/87A be used in place of S4PDHM3_B/H?

A: Yes. S4PD-M3/86A and S4PD-M3/87A are parametric equivalents with identical electrical specifications and mechanical compatibility. Selection between these parts and S4PDHM3_B/H should be based on availability and supply chain requirements, as all three are electrically interchangeable.

Q: What is the operating temperature range for these diodes?

A: All substitute parts operate across a junction temperature range of -55°C to 150°C, identical to the original S4PDHM3_A/H.