HER301-TP Equivalent & Substitute Parts

Part Overview

The HER301-TP is a general-purpose rectifier diode rated for 50 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete product status, identifying equivalent substitute parts with matching electrical and mechanical specifications is necessary for design continuity and procurement planning.

Substiute Parts

HER301-TP

Micro Commercial CoIn Stock: 890HER301-TP Datasheet

Current PartRFQ

HER301G

Taiwan Semiconductor CorporationIn Stock: 745HER301G Datasheet

Parametric EquivalentRFQ

UF300G_R2_00001

Panjit International Inc.In Stock: 921UF300G_R2_00001 Datasheet

Parametric EquivalentRFQ

UF5400-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 4677UF5400-E3/54 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HER301-TP are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 3 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 50 ns
• Package / Case: DO-201AD, Axial
• Mounting Type: Through Hole
• Operating Temperature - Junction: -55°C ~ 150°C
• RoHS Status: ROHS3 Compliant

All identified substitute parts meet these critical parameters. Secondary parameters such as capacitance and reverse leakage current may vary within acceptable ranges without affecting functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

HER301G (Taiwan Semiconductor Corporation)

The HER301G is a parametric equivalent with active product status. All critical electrical parameters match the HER301-TP. This part is ROHS3 compliant and carries REACH Unaffected status. The HER301G is suitable for direct substitution in applications where the original HER301-TP is no longer available.

UF300G_R2_00001 (Panjit International Inc.)

The UF300G_R2_00001 meets all critical electrical specifications and is supplied in Tape & Reel packaging. This part features active product status, ROHS3 compliance, and REACH Unaffected status. The reverse leakage current is 1 µA at 50 V, which is lower than the original specification. This part is suitable for substitution in applications where tape and reel packaging is preferred for automated assembly.

UF5400-E3/54 (Vishay General Semiconductor - Diodes Division)

The UF5400-E3/54 is a parametric equivalent supplied in Cut Tape packaging. All critical electrical parameters align with the HER301-TP specification. This part maintains active product status, ROHS3 compliance, and REACH Unaffected status. The UF5400-E3/54 is suitable for substitution and offers the highest inventory availability among the listed alternatives.

All three substitute parts are active products with current manufacturing support, providing long-term design continuity compared to the obsolete HER301-TP.

Frequently Asked Questions (FAQ)

Q: Can the HER301G be used as a direct replacement for the HER301-TP?

A: Yes. The HER301G matches all critical electrical parameters including voltage rating, current rating, forward voltage, recovery time, and operating temperature range. Both parts use the DO-201AD axial through-hole package and are ROHS3 compliant.

Q: What is the difference between the three substitute parts?

A: The three substitute parts are electrically equivalent but differ in packaging format and secondary parameters. The HER301G is supplied in standard packaging, the UF300G_R2_00001 is supplied in Tape & Reel format, and the UF5400-E3/54 is supplied in Cut Tape format. Capacitance values vary slightly (45 pF to 75 pF), and the UF300G_R2_00001 has lower reverse leakage current (1 µA versus 10 µA).

Q: Does packaging format affect electrical performance?

A: No. Packaging format (standard, Tape & Reel, or Cut Tape) does not affect electrical performance. The choice of packaging is determined by assembly process requirements and inventory management preferences.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant, matching the compliance status of the original HER301-TP.

Q: Which substitute part has the best availability?

A: The UF5400-E3/54 has the highest inventory availability at 4,621 pieces in stock, compared to 718 pieces for the HER301G and 903 pieces for the UF300G_R2_00001.

Q: Can I use these parts interchangeably in existing designs?

A: Yes. All substitute parts are pin-compatible and electrically equivalent for the HER301-TP application. No circuit modifications are required for substitution.

Q: What is the significance of the reverse recovery time specification?

A: The reverse recovery time of 50 ns indicates fast recovery diode performance. This specification is identical across all parts and ensures consistent switching behavior in rectification and switching applications.