MUR110-AP Equivalent & Substitute Parts

Part Overview

The MUR110-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100V DC reverse voltage and 1A average rectified current in a through-hole DO-41 package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. The diode features fast recovery characteristics with a reverse recovery time of 45 nanoseconds, suitable for standard rectification applications requiring moderate switching speeds.

Substiute Parts

MUR110-AP

Micro Commercial CoIn Stock: 771MUR110-AP Datasheet

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UF4002 B0G

Taiwan Semiconductor CorporationIn Stock: 1048UF4002 B0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MUR110-AP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Mounting Type: Through Hole
• Package / Case: DO-41 or DO-204AL (electrically and mechanically compatible axial packages)
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Ranges:

• Voltage - Forward (Vf) (Max) @ If: Within standard rectifier diode tolerances
• Reverse Recovery Time (trr): ≤ 500 ns (fast recovery classification maintained)
• Current - Reverse Leakage @ Vr: ≤ 5 µA @ 100 V
• Operating Temperature - Junction: Must encompass or exceed -50°C ~ 150°C range
• Capacitance @ Vr, F: Standard variation acceptable

The UF4002 B0G meets all critical matching parameters and qualifies as a direct substitute for the obsolete MUR110-AP.

Parameter Comparison

Engineering Selection Recommendations

The UF4002 B0G is a qualified substitute for the obsolete MUR110-AP based on the following factors:

Product Status Consideration: The MUR110-AP is classified as obsolete, while the UF4002 B0G maintains active product status with 1014 units in current inventory. This ensures long-term availability and supply chain continuity.

Compliance and Certification: Both components maintain ROHS3 compliance and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, ensuring regulatory equivalence for procurement and export purposes. The UF4002 B0G additionally carries REACH Unaffected status.

Electrical Parameter Equivalence: All critical electrical parameters match or remain within acceptable variation ranges. The forward voltage differential of 25 mV (1 V versus 975 mV) and reverse recovery time differential of 5 nanoseconds fall within standard rectifier diode manufacturing tolerances and do not impact functional performance in standard rectification circuits.

Thermal and Mechanical Compatibility: The UF4002 B0G extends the lower operating temperature limit to -55°C, providing enhanced thermal performance. Both components utilize identical through-hole axial packaging (DO-41/DO-204AL), ensuring direct mechanical compatibility in existing PCB layouts without modification.

Frequently Asked Questions (FAQ)

Q: Can the UF4002 B0G be used as a direct replacement for MUR110-AP without circuit modification?

A: Yes. The UF4002 B0G meets all critical electrical and mechanical parameters. The component is pin-compatible, maintains identical voltage and current ratings, and operates within the same temperature range. No circuit modifications are required for substitution.

Q: What is the significance of the 25 mV forward voltage difference between the two diodes?

A: The forward voltage difference (MUR110-AP: 975 mV versus UF4002 B0G: 1 V at 1 A) represents a 2.6% variation within standard rectifier diode manufacturing tolerances. This differential does not impact circuit performance in standard rectification applications and falls within typical design margin specifications.

Q: Are the DO-41 and DO-204AL packages mechanically interchangeable?

A: Yes. Both the MUR110-AP and UF4002 B0G are specified for DO-204AL, DO-41, and Axial package designations. These designations refer to the same through-hole axial lead configuration. The components are mechanically and electrically interchangeable in PCB layouts designed for either specification.

Q: Does the 5 nanosecond difference in reverse recovery time affect circuit performance?

A: No. Both components are classified as fast recovery diodes with reverse recovery times well below the 500 nanosecond threshold. The 5 nanosecond differential (MUR110-AP: 45 ns versus UF4002 B0G: 50 ns) does not impact switching performance in standard rectification circuits and remains within acceptable manufacturing variation.

Q: What compliance certifications apply to both components?

A: Both the MUR110-AP and UF4002 B0G maintain ROHS3 compliance, carry Moisture Sensitivity Level 1 (Unlimited), and are classified under ECCN EAR99 with HTSUS code 8541.10.0080. The UF4002 B0G additionally carries REACH Unaffected status, providing enhanced regulatory coverage.

Q: Is the extended temperature range of the UF4002 B0G (-55°C versus -50°C) a significant advantage?

A: The extended lower temperature limit of the UF4002 B0G provides additional thermal margin for applications operating in cold environments. For standard room-temperature and elevated-temperature applications, both components operate identically within the overlapping -50°C to 150°C range.