MUR130G Equivalent & Substitute Parts

Part Overview

The MUR130G is a general-purpose rectifier diode manufactured by onsemi, rated for 300 V DC reverse voltage and 1 A average rectified current in an axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The MUR130G operates within the SWITCHMODE™ series and meets ROHS3 compliance standards.

Substiute Parts

MUR130G

onsemiIn Stock: 950MUR130G Datasheet

Current PartRFQ

HER104GH

Taiwan Semiconductor CorporationIn Stock: 5037HER104GH Datasheet

SimilarRFQ

UF4004-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1588UF4004-E3/54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MUR130G is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 300 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial compatible
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Equal or lower values acceptable
• Reverse Recovery Time (trr): Equal or lower values acceptable
• Current - Reverse Leakage @ Vr: Equal or lower values acceptable
• Operating Temperature - Junction: Range must encompass or exceed the original specification

The identified substitute parts meet these criteria while offering active product status and improved availability compared to the obsolete MUR130G.

Parameter Comparison

Engineering Selection Recommendations

HER104GH (Taiwan Semiconductor Corporation)

The HER104GH provides direct voltage and current rating equivalence to the MUR130G at 300 V and 1 A. This part demonstrates improved reverse recovery time (50 ns versus 75 ns) and lower forward voltage drop (1 V versus 1.25 V at 1 A), resulting in reduced power dissipation. The HER104GH carries active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Operating temperature range is -55°C to 150°C, which is narrower than the original specification but suitable for standard industrial applications. This substitute is recommended for applications where the original 300 V rating is the design requirement.

UF4004-E3/54 (Vishay General Semiconductor - Diodes Division)

The UF4004-E3/54 offers elevated voltage rating at 400 V, providing design margin above the 300 V requirement of the MUR130G. Current rating matches at 1 A with equivalent fast recovery characteristics. Forward voltage drop and reverse recovery time are identical to the HER104GH (1 V @ 1 A and 50 ns respectively). The UF4004-E3/54 maintains active product status and ROHS3 compliance. Operating temperature range is -55°C to 150°C. This substitute is applicable for applications requiring higher voltage headroom or where 400 V rated components are standardized in the design.

Both substitute parts are available in active production with significantly higher inventory levels than the obsolete MUR130G, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the HER104GH directly replace the MUR130G in all applications?

A: The HER104GH meets the voltage (300 V), current (1 A), and package (DO-204AL/DO-41 axial) requirements of the MUR130G. The improved reverse recovery time (50 ns versus 75 ns) and lower forward voltage drop (1 V versus 1.25 V) are beneficial characteristics. The operating temperature range (-55°C to 150°C) is narrower than the original (-65°C to 175°C); applications requiring operation below -55°C or above 150°C require evaluation against specific design limits.

Q: What is the difference between the HER104GH and UF4004-E3/54?

A: Both parts share identical current rating (1 A), forward voltage drop (1 V @ 1 A), and reverse recovery time (50 ns). The primary difference is voltage rating: HER104GH is rated 300 V, matching the MUR130G, while UF4004-E3/54 is rated 400 V. The UF4004-E3/54 provides additional voltage margin for designs with higher transient voltage requirements. Both operate across -55°C to 150°C.

Q: Are the substitute parts available in the same packaging as the MUR130G?

A: Yes. Both HER104GH and UF4004-E3/54 are supplied in DO-204AL (DO-41) axial through-hole packages, identical to the MUR130G. Physical dimensions and lead configurations are compatible with existing PCB layouts and assembly processes.

Q: Do the substitute parts meet the same compliance standards as the MUR130G?

A: Both HER104GH and UF4004-E3/54 are ROHS3 compliant and REACH unaffected, matching the MUR130G compliance profile. The HER104GH carries additional AEC-Q101 automotive qualification. All three parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: What is the moisture sensitivity level of the substitute parts?

A: Both HER104GH and UF4004-E3/54 carry MSL 1 (Unlimited) classification, identical to the MUR130G, indicating no moisture sensitivity constraints for storage or handling.

Q: Which substitute part should be selected for new designs?

A: For applications where 300 V rating is the design requirement, the HER104GH is the direct equivalent. For applications where higher voltage margin is beneficial or where 400 V rated components are standardized, the UF4004-E3/54 is appropriate. Both parts are active products with superior availability compared to the obsolete MUR130G.