FR8J-TP Equivalent & Substitute Parts

Part Overview

The FR8J-TP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 8 A average rectified current in a Surface Mount SMC (DO-214AB) package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and procurement needs. The FR8J-TP is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and operates across a junction temperature range of -55°C to 150°C.

Substiute Parts

FR8J-TP

Micro Commercial CoIn Stock: 990FR8J-TP Datasheet

Current PartRFQ

MUR860J

WeEn SemiconductorsIn Stock: 20906MUR860J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FR8J-TP is determined by equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 8 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 10 µA @ 600 V

Mechanical Equivalence Criteria:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The MUR860J from WeEn Semiconductors meets all electrical and mechanical equivalence criteria. This substitute maintains identical voltage and current ratings, fast recovery speed classification, and reverse leakage characteristics. Both components utilize the same DO-214AB SMC surface mount package and share identical RoHS3 compliance and MSL ratings.

Parameter Comparison

Engineering Selection Recommendations

The MUR860J is a direct functional equivalent to the FR8J-TP for applications requiring a 600 V, 8 A general-purpose rectifier diode in SMC surface mount packaging. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) ratings, ensuring compatibility with standard manufacturing and storage protocols.

The MUR860J offers performance advantages over the FR8J-TP in forward voltage drop (1.25 V versus 1.3 V at 8 A) and reverse recovery time (90 ns versus 250 ns). These improvements result in reduced power dissipation and faster switching characteristics. The MUR860J maintains active product status with significantly higher inventory availability (20,886 pieces versus 923 pieces), supporting long-term supply chain continuity.

Both components operate within compatible junction temperature ranges, with the MUR860J rated to 175°C maximum junction temperature, providing thermal margin for demanding applications. The identical DO-214AB SMC package ensures direct mechanical and electrical compatibility without PCB redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the MUR860J directly replace the FR8J-TP without PCB modifications?

A: Yes. Both components utilize the DO-214AB SMC surface mount package with identical pin configuration and footprint. No PCB layout changes are required for substitution.

Q: What is the significance of the lower forward voltage drop in the MUR860J?

A: The MUR860J exhibits 1.25 V forward voltage drop compared to 1.3 V in the FR8J-TP at 8 A. This 50 mV reduction decreases power dissipation and heat generation in the component, improving overall circuit efficiency.

Q: How does the faster reverse recovery time of the MUR860J affect circuit performance?

A: The MUR860J reverse recovery time of 90 ns is significantly faster than the FR8J-TP at 250 ns. Faster recovery reduces switching losses and electromagnetic interference (EMI) in high-frequency rectification applications, though both components meet fast recovery classification criteria.

Q: Are there any compliance or certification differences between these parts?

A: Both the FR8J-TP and MUR860J are ROHS3 compliant with MSL 1 (Unlimited) ratings. No compliance or certification differences exist between the two components.

Q: Why is the MUR860J preferred despite the FR8J-TP being in stock?

A: The FR8J-TP is classified as obsolete, indicating discontinued production and limited future availability. The MUR860J is an active product with substantially higher inventory levels, ensuring reliable long-term procurement and supply chain stability.

Q: Are the electrical specifications identical between these diodes?

A: The voltage and current ratings are identical (600 V, 8 A). The MUR860J provides superior performance in forward voltage drop and reverse recovery time while maintaining equivalent reverse leakage characteristics and speed classification.