HER208-AP Equivalent & Substitute Parts

Part Overview

The HER208-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design and procurement requirements. Substitute parts must maintain identical electrical performance characteristics and mechanical compatibility to ensure direct replacement capability in existing circuit applications.

Substiute Parts

HER208-AP

Micro Commercial CoIn Stock: 747HER208-AP Datasheet

Current PartRFQ

HER208G-AP

Micro Commercial CoIn Stock: 1253HER208G-AP Datasheet

DirectRFQ

HER208G A0G

Taiwan Semiconductor CorporationIn Stock: 7955HER208G A0G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HER208-AP are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 1000 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 2 A
• Reverse Recovery Time (trr): 75 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 1000 V
• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial
• Operating Temperature - Junction: -55°C to 150°C
• Technology: Standard
• RoHS Status: ROHS3 Compliant

Substitutes are classified into two categories:

Direct Manufacturer Substitute: HER208G-AP maintains identical specifications and is manufactured by the same supplier (Micro Commercial Co) with active product status and Tape & Box packaging.

Parametric Equivalent: HER208G A0G is manufactured by Taiwan Semiconductor Corporation with identical electrical performance across all critical parameters. Minor variation in capacitance (20 pF vs. 30 pF @ 4V, 1MHz) does not affect rectification performance and remains within acceptable tolerance for general-purpose rectifier applications.

Parameter Comparison

Engineering Selection Recommendations

HER208G-AP (Direct Manufacturer Substitute): This part is the primary substitute for the obsolete HER208-AP. It is manufactured by Micro Commercial Co with active product status, ensuring long-term availability and supply chain continuity. All electrical parameters are identical, and the DO-15 package maintains mechanical compatibility. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This substitute is suitable for direct replacement without circuit modification.

HER208G A0G (Parametric Equivalent): This Taiwan Semiconductor Corporation part provides an alternative source for the same electrical function. All critical rectification parameters match the HER208-AP specification. The capacitance differential (20 pF vs. 30 pF) is within acceptable tolerance for general-purpose rectifier applications and does not affect circuit performance. Active product status and higher inventory availability (7896 Pcs) support procurement flexibility. ROHS3 compliance and REACH unaffected status confirm regulatory compliance. This substitute is suitable for direct replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can HER208G-AP be used as a direct replacement for HER208-AP?

A: Yes. HER208G-AP is a direct substitute manufactured by the same supplier with identical electrical specifications, operating temperature range, and DO-15 package configuration. The primary difference is active product status versus obsolete status.

Q: What is the difference between HER208G-AP and HER208G A0G?

A: Both parts meet identical electrical performance requirements for voltage, current, and recovery time. The primary differences are manufacturer (Micro Commercial Co vs. Taiwan Semiconductor Corporation), packaging format (Tape & Box vs. Cut Tape), and capacitance specification (30 pF vs. 20 pF @ 4V, 1MHz). The capacitance difference does not affect rectification performance in general-purpose applications.

Q: Are there package compatibility concerns when substituting these parts?

A: All three parts use DO-15 axial through-hole packages with identical mechanical dimensions and pin configuration. They are mechanically interchangeable on printed circuit boards designed for DO-15 components.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. HER208G-AP and HER208G A0G are both ROHS3 compliant, matching the compliance status of the original HER208-AP.

Q: Which substitute should be selected for new designs?

A: For new designs, either HER208G-AP or HER208G A0G is acceptable based on procurement availability and supplier preference. Both parts provide identical electrical performance and regulatory compliance. HER208G A0G offers higher inventory availability (7896 Pcs), while HER208G-AP maintains continuity with the original manufacturer.

Q: Is the capacitance difference between HER208G-AP (30 pF) and HER208G A0G (20 pF) significant?

A: The 10 pF difference is not significant for general-purpose rectifier applications. Both values are within acceptable tolerance for standard rectification circuits and do not affect forward voltage drop, reverse recovery time, or leakage current performance.