MUR460 Equivalent & Substitute Parts

Part Overview

The MUR460 is a superfast recovery rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 4 A average rectified current. This component is designed for through-hole axial mounting in DO-201AA and DO-27 packages. The MUR460 is classified as obsolete, which necessitates identification of equivalent and substitute parts for new designs and ongoing production support. Active alternatives with identical or comparable electrical characteristics are available from onsemi and other manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	4	A
Voltage - Forward (Vf) (Max) @ If	1.28 V @ 4 A	V
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	DO-201AA, DO-27, Axial	—
Operating Temperature - Junction	-65 to 175	°C
Series	SWITCHMODE™	—

Substitute Part Grouping Explanation

Substitution of the MUR460 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage rating of 600 V to ensure safe operation in the original circuit.

Current Rating: The average rectified current must be sufficient for the application. The MUR460 is rated at 4 A. Substitutes with equal or higher current ratings (4 A or greater) are direct equivalents. Parts rated below 4 A (such as 3 A variants) are functional substitutes only when circuit current requirements do not exceed the lower rating.

Recovery Speed: The MUR460 is classified as fast recovery (≤ 500 ns). Substitutes with identical fast recovery characteristics maintain switching performance. Standard recovery parts (> 500 ns) represent a functional trade-off with different switching behavior.

Mounting and Package: Through-hole axial mounting in DO-201AA, DO-27, or equivalent packages is required for direct mechanical compatibility. Surface-mount alternatives require circuit board redesign.

Forward Voltage: The MUR460 specifies 1.28 V maximum forward voltage at 4 A. Substitutes with comparable forward voltage characteristics minimize changes to circuit power dissipation and thermal performance.

Temperature Range: The MUR460 operates from -65°C to 175°C. Substitutes with equal or wider temperature ranges ensure compatibility across the full operating envelope.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Speed	Package	Temp Range [°C]	Product Status
MUR460	onsemi	600	4	1.28 @ 4A	75	Fast Recovery ≤ 500ns	DO-201AA, DO-27	-65 to 175	Obsolete
MUR460RLG	onsemi	600	4	1.28 @ 4A	75	Fast Recovery ≤ 500ns	DO-201AA, DO-27	-65 to 175	Active
MUR460G	onsemi	600	4	1.28 @ 4A	75	Fast Recovery ≤ 500ns	DO-201AA, DO-27	-65 to 175	Active
EGP30J	onsemi	600	3	1.7 @ 3A	75	Fast Recovery ≤ 500ns	DO-201AD	-65 to 150	Not For New Designs
1N5406-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.2 @ 3A	—	Standard Recovery > 500ns	DO-201AD	-50 to 150	Active
1N5406-G	Comchip Technology	600	3	1 @ 3A	—	Standard Recovery > 500ns	DO-201AD, DO-27	-65 to 125	Active
1N5406GP-AP	Micro Commercial Co	600	3	1.1 @ 3A	—	Standard Recovery > 500ns	DO-201AD	-55 to 150	Active
1N5406GP-TP	Micro Commercial Co	600	3	1.1 @ 3A	—	Standard Recovery > 500ns	DO-201AD	-55 to 150	Active
60S6-TP	Micro Commercial Co	600	6	1 @ 6A	—	Standard Recovery > 500ns	DO-201AD	-55 to 150	Active
BYV28-600-TAP	Vishay General Semiconductor - Diodes Division	600	3.5	1.35 @ 5A	210	Fast Recovery ≤ 500ns	SOD-64	-55 to 175	Active
1N6628U	Microchip Technology	660	1.75	1.35 @ 2A	45	Fast Recovery ≤ 500ns	SQ-MELF, B	-65 to 150	Active

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Mechanical Characteristics):

MUR460RLG and MUR460G are direct equivalents to the obsolete MUR460. Both parts are manufactured by onsemi, maintain the SWITCHMODE™ series designation, and provide identical electrical performance: 600 V reverse voltage, 4 A average rectified current, 1.28 V forward voltage at 4 A, and 75 ns reverse recovery time. Both are active products with RoHS3 compliance. MUR460RLG is supplied in cut tape packaging, while MUR460G is supplied in bulk. Selection between these two depends on procurement and assembly requirements.

Functional Substitutes with Reduced Current Rating (3 A):

EGP30J, 1N5406-E3/54, 1N5406-G, 1N5406GP-AP, and 1N5406GP-TP are all rated for 600 V reverse voltage but with 3 A average rectified current. These parts are suitable for applications where circuit current does not exceed 3 A. EGP30J is an onsemi product with fast recovery characteristics (75 ns) and is classified as not for new designs. The 1N5406 variants from Vishay, Comchip, and Micro Commercial Co are active products with standard recovery characteristics (> 500 ns), representing a trade-off in switching speed. All 1N5406 variants are RoHS3 compliant and active.

Higher Current Substitute (6 A):

60S6-TP from Micro Commercial Co is rated for 600 V reverse voltage and 6 A average rectified current, providing increased current capacity. This part uses standard recovery characteristics and is suitable for applications requiring higher current handling than the original MUR460.

Alternative Package Consideration:

BYV28-600-TAP from Vishay is a 600 V, 3.5 A avalanche diode in SOD-64 package with fast recovery characteristics (210 ns). This part requires circuit board redesign due to different package geometry and is suitable only when mechanical constraints permit through-hole SOD-64 mounting.

Surface-Mount Alternative:

1N6628U from Microchip Technology is a 660 V, 1.75 A fast recovery diode in surface-mount SQ-MELF package. This part is not mechanically compatible with through-hole axial designs and requires complete circuit board redesign.

Compliance and Availability:

All recommended active substitutes carry RoHS3 compliance and REACH unaffected status. MUR460RLG and MUR460G are preferred for new designs due to identical electrical specifications and active product status. Selection of lower-current alternatives (3 A) or higher-current alternatives (6 A) depends on specific circuit requirements and must be validated against application current demands.

Frequently Asked Questions (FAQ)

Q: Can MUR460RLG or MUR460G be used as direct replacements for the obsolete MUR460?

A: Yes. MUR460RLG and MUR460G are direct electrical and mechanical equivalents. Both maintain 600 V reverse voltage, 4 A average rectified current, 1.28 V forward voltage at 4 A, and 75 ns reverse recovery time. Both are active onsemi products with RoHS3 compliance. The primary difference is packaging: MUR460RLG is supplied in cut tape, while MUR460G is supplied in bulk.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Recovery speed refers to the reverse recovery time (trr), which is the time required for a diode to stop conducting when reverse bias is applied. The MUR460 has fast recovery characteristics with 75 ns reverse recovery time. Standard recovery diodes (such as 1N5406 variants) have recovery times exceeding 500 ns. Fast recovery diodes are preferred in switching applications where rapid turn-off is critical. Standard recovery diodes are suitable for lower-frequency rectification applications.

Q: Can I use a 3 A rated diode (such as 1N5406-G) in place of the 4 A rated MUR460?

A: A 3 A rated diode can be used only if the circuit current requirement does not exceed 3 A. The 1N5406-G is rated for continuous operation at 3 A maximum. If the application requires 4 A operation, a 3 A substitute will exceed its current rating and may result in premature failure or thermal damage. Verify circuit current requirements before selecting a lower-rated substitute.

Q: What are the packaging differences between DO-201AA, DO-27, and DO-201AD?

A: DO-201AA, DO-27, and DO-201AD are all axial through-hole packages for rectifier diodes. DO-201AA and DO-27 are equivalent designations for the same package form. DO-201AD is a slightly different variant. The MUR460 is available in DO-201AA and DO-27 packages. Most 3 A substitutes are available in DO-201AD package, which is mechanically compatible with DO-27 mounting. Verify package compatibility with circuit board design before selection.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed (MUR460RLG, MUR460G, 1N5406-E3/54, 1N5406-G, 1N5406GP-AP, 1N5406GP-TP, 60S6-TP, and BYV28-600-TAP) carry RoHS3 compliance certification. EGP30J is also RoHS3 compliant but is classified as not for new designs. All parts carry REACH unaffected status.

Q: What is the temperature operating range difference between MUR460 and its substitutes?

A: The MUR460 operates from -65°C to 175°C. Most 3 A substitutes operate from -55°C to 150°C or -50°C to 150°C, representing a narrower temperature range. MUR460RLG and MUR460G maintain the full -65°C to 175°C range. If the application requires operation at temperatures below -55°C or above 150°C, select MUR460RLG, MUR460G, or BYV28-600-TAP.

Q: Why is EGP30J classified as "Not For New Designs"?

A: EGP30J is an older onsemi product that remains in inventory but is not recommended for new circuit designs. While electrically functional, onsemi has transitioned to newer alternatives such as MUR460RLG and MUR460G. For new designs, select active products with ongoing manufacturer support.

Q: Can I use BYV28-600-TAP or 1N6628U as substitutes?

A: BYV28-600-TAP and 1N6628U are not direct substitutes due to package incompatibility. BYV28-600-TAP uses SOD-64 through-hole package, and 1N6628U uses surface-mount SQ-MELF package. Both require circuit board redesign. Additionally, BYV28-600-TAP is rated for 3.5 A (below the 4 A requirement), and 1N6628U is rated for only 1.75 A. These parts are suitable only for new designs where package and current requirements can be accommodated.

Q: What is the difference between cut tape (CT), tape & reel (TR), and bulk packaging?

A: Cut tape (CT) packaging supplies components in short strips suitable for manual assembly or small-batch production. Tape & reel (TR) packaging supplies components on continuous reels for automated assembly equipment. Bulk packaging supplies loose components in quantities suitable for manual handling. Selection depends on assembly process and production volume. MUR460RLG is available in cut tape; MUR460G is available in bulk.

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