MUR480-TP Equivalent & Substitute Parts

Part Overview

The MUR480-TP is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 4 A average rectified current in a through-hole DO-201AD axial package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent and substitute parts are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	4 A
Voltage - Forward (Vf) (Max) @ If	1.85 V @ 4 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	75 ns
Current - Reverse Leakage @ Vr	10 µA @ 800 V
Mounting Type	Through Hole
Package / Case	DO-201AD, Axial
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MUR480-TP is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain the 800 V DC reverse voltage specification to ensure adequate dielectric strength in the application circuit.

Current Rating: The 4 A average rectified current specification defines the thermal and conduction capability requirements. Parts rated at 4 A provide direct equivalence; parts rated below 4 A (such as 3 A) are functional substitutes only where circuit current demands do not exceed the lower rating.

Forward Voltage: The forward voltage drop at rated current (1.85 V @ 4 A) affects power dissipation and circuit efficiency. Equivalent parts maintain this specification; substitutes with different forward voltage characteristics remain functionally compatible within the 800 V / 4 A envelope.

Recovery Characteristics: Fast recovery classification (≤ 500ns, > 200mA) and reverse recovery time (trr) specifications determine switching performance. Parts meeting or exceeding these specifications are suitable substitutes.

Package Compatibility: Through-hole axial mounting in DO-201AD or equivalent axial packages ensures mechanical and electrical compatibility with existing PCB layouts and component handling processes.

Compliance: RoHS3 compliance and REACH unaffected status are maintained across all substitute parts.

Parameter Comparison

Parameter	MUR480-TP (Micro Commercial Co)	MUR480ERLG (onsemi)	MUR480ESG (onsemi)	UF5407-E3/54 (Vishay)	UF408G_AY_00001 (Panjit)
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	4 A	4 A	4 A	3 A	4 A
Voltage - Forward (Vf) (Max) @ If	1.85 V @ 4 A	1.85 V @ 4 A	1.85 V @ 4 A	1.7 V @ 3 A	1.85 V @ 4 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Reverse Recovery Time (trr)	75 ns	100 ns	100 ns	75 ns	75 ns
Current - Reverse Leakage @ Vr	10 µA @ 800 V	25 µA @ 800 V	25 µA @ 800 V	10 µA @ 800 V	10 µA @ 800 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-201AD, Axial	DO-201AA, DO-27, Axial	Axial, Radial Bend	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Obsolete	Active	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Equivalent: UF408G_AY_00001 (Panjit International Inc.) provides parametric equivalence to the MUR480-TP with identical voltage, current, forward voltage, and reverse recovery time specifications. This part is active in production status and maintains full compliance with RoHS3 and REACH requirements. The DO-201AD package ensures direct mechanical compatibility.

Active Production Alternative: MUR480ERLG (onsemi) is an active production part within the SWITCHMODE™ series offering 800 V / 4 A performance. The reverse recovery time is specified at 100 ns compared to the MUR480-TP's 75 ns, and reverse leakage current is 25 µA versus 10 µA. The operating temperature range extends to -65°C ~ 175°C, providing enhanced thermal margin. Package variants include DO-201AA and DO-27 axial configurations. This part is suitable for applications where the extended temperature range and active production status outweigh the slightly higher reverse recovery time.

Current-Limited Substitute: UF5407-E3/54 (Vishay General Semiconductor - Diodes Division) is rated for 3 A average rectified current, compared to the MUR480-TP's 4 A specification. This part is suitable only for applications where circuit current demands do not exceed 3 A. The forward voltage is 1.7 V @ 3 A, and reverse recovery time matches the MUR480-TP at 75 ns. The part is active in production and maintains RoHS3 compliance.

Obsolete Alternative: MUR480ESG (onsemi) shares the same base product number and electrical specifications as MUR480ERLG but carries obsolete product status. This part should be considered only when active alternatives are unavailable and existing inventory is accessible.

Frequently Asked Questions (FAQ)

Q: Can MUR480ERLG directly replace MUR480-TP in all applications?

A: MUR480ERLG is electrically compatible for 800 V / 4 A applications. The reverse recovery time of 100 ns is slightly longer than the MUR480-TP's 75 ns specification, and reverse leakage current is higher at 25 µA versus 10 µA. These differences are acceptable in most general-purpose rectifier applications. The extended operating temperature range (-65°C ~ 175°C) provides additional design margin compared to the MUR480-TP (-55°C ~ 150°C).

Q: Is UF5407-E3/54 suitable as a substitute for MUR480-TP?

A: UF5407-E3/54 is a functional substitute only for applications where the average rectified current does not exceed 3 A. The part is rated for 3 A, which is below the MUR480-TP's 4 A specification. All other electrical parameters (800 V reverse voltage, fast recovery characteristics, 75 ns reverse recovery time) are compatible. Package compatibility is maintained in the DO-201AD axial configuration.

Q: What is the difference between DO-201AD and DO-201AA packages?

A: Both DO-201AD and DO-201AA are axial through-hole packages used for rectifier diodes. The primary difference is in physical dimensions and lead diameter specifications. MUR480ERLG is available in both DO-201AA and DO-27 variants. Verify PCB pad and hole specifications before selecting a package variant to ensure mechanical fit.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (MUR480ERLG, MUR480ESG, UF5407-E3/54, and UF408G_AY_00001) are RoHS3 compliant and REACH unaffected, matching the compliance status of the MUR480-TP.

Q: Which substitute part has the best availability?

A: MUR480ERLG (onsemi) has the highest inventory level at 47,148 pieces in stock and carries active product status, ensuring long-term availability and supply chain continuity.

Q: Can I use MUR480ESG as a long-term solution?

A: MUR480ESG carries obsolete product status and should not be selected for new designs or long-term production. It is suitable only as a temporary solution when active alternatives are unavailable. For ongoing production, select MUR480ERLG or UF408G_AY_00001, both of which are active in production.

Q: What is the significance of reverse recovery time in rectifier selection?

A: Reverse recovery time (trr) determines how quickly the diode transitions from conducting to blocking state. The MUR480-TP specifies 75 ns, which is classified as fast recovery. MUR480ERLG and MUR480ESG specify 100 ns, which is slightly longer but remains within fast recovery classification. For switching power supply applications, shorter reverse recovery time reduces switching losses and improves efficiency.

Q: Are there any thermal considerations when substituting parts?

A: MUR480ERLG offers an extended operating temperature range (-65°C ~ 175°C) compared to the MUR480-TP (-55°C ~ 150°C). This provides additional thermal margin in high-temperature environments. All parts are through-hole components with similar thermal dissipation characteristics in standard PCB layouts.

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