HER153-AP Equivalent & Substitute Parts

Part Overview

The HER153-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The diode features fast recovery characteristics with a 50 ns reverse recovery time and operates across a junction temperature range of -55°C to 125°C.

Substiute Parts

HER153-AP

Micro Commercial CoIn Stock: 893HER153-AP Datasheet

Current PartRFQ

PR1503-T

Diodes IncorporatedIn Stock: 787PR1503-T Datasheet

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UG2D-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 5215UG2D-E3/54 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HER153-AP is determined by the following critical parameters:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V minimum
• Current - Average Rectified (Io): 1.5 A minimum
• Mounting Type: Through Hole
• Package / Case: DO-15 or DO-204AC compatible
• Technology: Standard rectifier diode

Secondary Compatibility Factors:

• Reverse Recovery Time (trr): Fast recovery ≤ 500 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 200 V
• Operating Temperature Range: Must encompass application requirements
• RoHS Compliance: ROHS3 Compliant

Substitute parts must meet or exceed the primary matching criteria. Variations in forward voltage, reverse recovery time, and operating temperature range are acceptable provided they do not degrade circuit performance or reliability.

Parameter Comparison

Engineering Selection Recommendations

PR1503-T (Diodes Incorporated)

The PR1503-T is an active product with identical voltage and current ratings to the HER153-AP. It maintains the same 200 V reverse voltage and 1.5 A average rectified current specifications. The PR1503-T features an extended operating temperature range (-65°C to 150°C) compared to the HER153-AP (-55°C to 125°C), providing broader thermal compatibility. Forward voltage is slightly elevated at 1.2 V versus 1 V, and reverse recovery time is 150 ns compared to 50 ns. Both components are ROHS3 compliant. The PR1503-T is supplied in Tape & Reel packaging and represents a direct functional equivalent for applications requiring identical current and voltage specifications.

UG2D-E3/54 (Vishay General Semiconductor - Diodes Division)

The UG2D-E3/54 is an active product with superior current rating of 2 A, exceeding the HER153-AP requirement of 1.5 A. It maintains the same 200 V reverse voltage specification. The UG2D-E3/54 features improved forward voltage performance at 950 mV @ 2 A and faster reverse recovery time of 25 ns. Operating temperature range extends to 150°C maximum. This component is ROHS3 compliant and supplied in Cut Tape packaging. The UG2D-E3/54 provides enhanced performance margins and is suitable for applications where higher current capacity or improved switching characteristics are beneficial.

Both substitute parts are active products with current manufacturing availability, ensuring long-term supply continuity compared to the obsolete HER153-AP.

Frequently Asked Questions (FAQ)

Q: Can PR1503-T directly replace HER153-AP in all applications?

A: The PR1503-T meets the primary electrical specifications of the HER153-AP with identical voltage and current ratings. The forward voltage difference of 0.2 V and reverse recovery time difference of 100 ns are within acceptable tolerances for general-purpose rectifier applications. The extended operating temperature range of PR1503-T provides additional thermal margin. Compatibility depends on specific circuit requirements and thermal constraints.

Q: What is the advantage of using UG2D-E3/54 over PR1503-T?

A: The UG2D-E3/54 provides a 2 A current rating compared to the 1.5 A rating of both HER153-AP and PR1503-T. This higher current capacity creates additional design margin. The UG2D-E3/54 also features faster reverse recovery time (25 ns versus 50 ns for HER153-AP and 150 ns for PR1503-T) and lower forward voltage at 950 mV. These characteristics make UG2D-E3/54 suitable for applications requiring improved switching performance or higher current capacity.

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

A: All three components use the DO-15 through-hole package format, ensuring mechanical compatibility. However, packaging configurations differ: HER153-AP is supplied in standard packaging, PR1503-T is supplied in Tape & Reel (TR), and UG2D-E3/54 is supplied in Cut Tape (CT). These packaging differences affect handling and assembly processes but do not impact electrical performance or physical fit.

Q: What is the significance of the obsolete status of HER153-AP?

A: The obsolete status indicates that HER153-AP is no longer manufactured by Micro Commercial Co and existing inventory is limited. Both PR1503-T and UG2D-E3/54 are active products with ongoing production, ensuring reliable long-term availability for new designs and maintenance applications.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes, HER153-AP, PR1503-T, and UG2D-E3/54 are all ROHS3 compliant, meeting environmental and regulatory requirements for electronic components.

Q: How do reverse recovery time differences affect circuit performance?

A: Reverse recovery time (trr) determines the speed at which a diode transitions from conducting to blocking state. HER153-AP has 50 ns, PR1503-T has 150 ns, and UG2D-E3/54 has 25 ns. Faster recovery times reduce switching losses and electromagnetic interference in high-frequency applications. Slower recovery times may introduce additional switching losses but are acceptable in low-frequency rectification circuits.