MUR220 Equivalent & Substitute Parts Reference

Part Overview

The MUR220 is a general-purpose fast recovery rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 2 A average rectified current in an axial through-hole package (DO-204AL/DO-41). The device operates across a junction temperature range of -65°C to 175°C with a reverse recovery time of 35 ns, making it suitable for switching power supply applications within the SWITCHMODE™ series.

The MUR220 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging variations.

Key Parameters

Parameter	MUR220 Specification
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 2 A
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	2 µA @ 200 V
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 175°C
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MUR220 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 200 V
Current - Average Rectified (Io): Must equal or exceed 2 A
Voltage - Forward (Vf) (Max) @ If: Must not exceed 950 mV @ 2 A
Speed Classification: Must be Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type: Through Hole
Operating Temperature - Junction: Must accommodate -65°C ~ 175°C range or equivalent operational envelope

Secondary Compatibility Factors:

Package / Case: DO-204AL (DO-41) Axial preferred; DO-204AC (DO-15) Axial acceptable with mechanical adaptation
Reverse Recovery Time (trr): Lower values indicate superior performance; 35 ns to 200 ns range acceptable
Current - Reverse Leakage @ Vr: Lower values preferred; 2 µA to 5 µA @ 200 V acceptable
RoHS Compliance: ROHS3 Compliant substitutes preferred for new designs

Substitute Categories:

Category 1 - Direct Electrical & Package Match (Preferred): Parts meeting all primary criteria with identical or superior electrical performance and matching axial package configuration.

Category 2 - Electrical Match with Package Variation: Parts meeting all primary electrical criteria but with different through-hole package types (DO-15 vs. DO-41), requiring mechanical board layout adaptation.

Category 3 - Partial Current Rating Match: Parts with lower average rectified current (1 A vs. 2 A) but meeting voltage and speed requirements; suitable only for applications with reduced current demands.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (A)	Vf (Max) @ If	trr (ns)	Ir @ Vr	Package	Temp Range	Product Status	RoHS
MUR220	onsemi	200 V	2 A	950 mV @ 2 A	35 ns	2 µA @ 200 V	DO-204AL, DO-41	-65°C ~ 175°C	Obsolete	Non-compliant
MUR220G	onsemi	200 V	2 A	950 mV @ 2 A	35 ns	2 µA @ 200 V	DO-204AL, DO-41	-65°C ~ 175°C	Active	ROHS3 Compliant
EGP20D-E3/73	Vishay	200 V	2 A	950 mV @ 2 A	50 ns	5 µA @ 200 V	DO-204AC, DO-15	-65°C ~ 150°C	Active	ROHS3 Compliant
EGP20D-E3/54	Vishay	200 V	2 A	950 mV @ 2 A	50 ns	5 µA @ 200 V	DO-204AC, DO-15	-65°C ~ 150°C	Active	ROHS3 Compliant
EGP20D	onsemi	200 V	2 A	950 mV @ 2 A	50 ns	5 µA @ 200 V	DO-204AC, DO-15	-65°C ~ 150°C	Not For New Designs	ROHS3 Compliant
BYW32-TR	Vishay	200 V	2 A	1.1 V @ 1 A	200 ns	5 µA @ 200 V	SOD-57, Axial	-55°C ~ 175°C	Active	ROHS3 Compliant
BYT53D-TAP	Vishay	200 V	1.9 A	1.1 V @ 1 A	50 ns	5 µA @ 200 V	SOD-57, Axial	-55°C ~ 175°C	Active	ROHS3 Compliant
BYT53D-TR	Vishay	200 V	1.9 A	1.1 V @ 1 A	50 ns	5 µA @ 200 V	SOD-57, Axial	-55°C ~ 175°C	Active	ROHS3 Compliant
1N4935-T	Diodes Incorporated	200 V	1 A	1.2 V @ 1 A	200 ns	5 µA @ 200 V	DO-204AL, DO-41	-65°C ~ 150°C	Active	ROHS3 Compliant
1N4935G-T	Diodes Incorporated	200 V	1 A	1.2 V @ 1 A	200 ns	5 µA @ 200 V	DO-204AL, DO-41	-65°C ~ 150°C	Active	ROHS3 Compliant
1N4935G	Taiwan Semiconductor Corporation	200 V	1 A	1.2 V @ 1 A	200 ns	5 µA @ 200 V	DO-204AL, DO-41	-55°C ~ 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Recommended Direct Replacement:

MUR220G (onsemi) is the primary recommended substitute. This part maintains identical electrical specifications to the MUR220 (200 V, 2 A, 950 mV forward voltage, 35 ns reverse recovery time) while offering active product status and ROHS3 compliance. The MUR220G is available in bulk packaging and provides the highest design continuity with zero electrical parameter deviation. This selection eliminates obsolescence risk and satisfies modern regulatory compliance requirements.

Tier 2 - Electrical Equivalent with Package Variation:

EGP20D-E3/73 and EGP20D-E3/54 (Vishay) provide full electrical equivalence at 200 V, 2 A with identical forward voltage (950 mV @ 2 A). These parts feature slightly extended reverse recovery time (50 ns vs. 35 ns) and marginally higher reverse leakage (5 µA vs. 2 µA @ 200 V), both within acceptable engineering tolerance. The primary design consideration is package transition from DO-204AL (DO-41) axial to DO-204AC (DO-15) axial, requiring mechanical board layout verification. Both parts carry active product status and ROHS3 compliance. EGP20D-E3/73 is available in higher inventory (3900 pcs) compared to EGP20D-E3/54 (1120 pcs).

EGP20D (onsemi) offers identical electrical performance but carries "Not For New Designs" status, limiting suitability to legacy system maintenance only.

Tier 3 - Avalanche Technology Variants:

BYW32-TR and BYT53D series (Vishay) employ avalanche diode technology with 200 V rating and 2 A / 1.9 A current capacity respectively. These parts feature extended reverse recovery time (200 ns and 50 ns respectively) and higher forward voltage (1.1 V @ 1 A) compared to the MUR220. The SOD-57 package differs from the original DO-41 configuration. Selection of avalanche variants is appropriate only when avalanche protection characteristics are required by circuit design specifications.

Tier 4 - Reduced Current Rating Substitutes:

1N4935-T, 1N4935G-T, and 1N4935G (Diodes Incorporated and Taiwan Semiconductor Corporation) provide 200 V reverse voltage with reduced 1 A average rectified current. These parts are suitable only for applications where circuit current demands do not exceed 1 A. Forward voltage is higher (1.2 V @ 1 A) and reverse recovery time is extended (200 ns). All variants carry active product status and ROHS3 compliance. This category is not recommended as a direct MUR220 replacement due to current rating mismatch.

Compliance Considerations:

All recommended Tier 1 and Tier 2 substitutes carry ROHS3 compliance certification, satisfying modern regulatory requirements. The original MUR220 is RoHS non-compliant; substitution with compliant alternatives is mandatory for new product designs and recommended for legacy system updates where feasible.

Frequently Asked Questions (FAQ)

Q1: Can MUR220G be used as a direct drop-in replacement for MUR220?

A: Yes. MUR220G is electrically and mechanically identical to MUR220, with matching 200 V reverse voltage, 2 A current rating, 950 mV forward voltage, and DO-204AL/DO-41 axial package. The primary advantage is active product status and ROHS3 compliance. No circuit modifications are required.

Q2: What is the key difference between MUR220 and EGP20D-E3/73?

A: Both parts share identical electrical ratings (200 V, 2 A, 950 mV forward voltage). The primary differences are: (1) Package type—EGP20D-E3/73 uses DO-204AC (DO-15) axial versus MUR220's DO-204AL (DO-41) axial, requiring mechanical board layout verification; (2) Reverse recovery time—EGP20D-E3/73 is 50 ns versus MUR220's 35 ns; (3) Reverse leakage—EGP20D-E3/73 is 5 µA versus MUR220's 2 µA @ 200 V. Both differences are within acceptable engineering tolerance for general-purpose rectification applications.

Q3: Why are 1N4935 series parts listed as substitutes if they have only 1 A current rating?

A: 1N4935 series parts meet the 200 V reverse voltage and fast recovery speed requirements but provide reduced current capacity (1 A vs. 2 A). These parts are listed as available substitutes but are suitable only for applications where circuit current demands do not exceed 1 A. Direct substitution in 2 A circuits is not recommended.

Q4: What does "Not For New Designs" status mean for EGP20D?

A: "Not For New Designs" indicates the manufacturer has designated this part for legacy system support only. While electrically equivalent to MUR220, EGP20D should not be selected for new product development. EGP20D-E3/73 or EGP20D-E3/54 (both active status) are preferred alternatives.

Q5: Can BYW32-TR or BYT53D series replace MUR220 in all applications?

A: BYW32-TR and BYT53D series provide 200 V reverse voltage and meet fast recovery speed requirements but employ avalanche diode technology with different forward voltage (1.1 V @ 1 A) and extended reverse recovery time (50 ns to 200 ns). These parts are suitable only when avalanche protection characteristics are required by circuit design. Standard rectification applications should use Tier 1 or Tier 2 substitutes.

Q6: What packaging considerations apply when switching from MUR220 to EGP20D-E3/73?

A: MUR220 uses DO-204AL (DO-41) axial package; EGP20D-E3/73 uses DO-204AC (DO-15) axial package. Both are through-hole axial configurations with identical lead spacing and polarity marking. Mechanical board layout verification is required to confirm pad compatibility and component clearance. No electrical circuit modifications are necessary.

Q7: Is RoHS compliance a critical factor in selecting a substitute?

A: For new product designs and systems subject to regulatory compliance requirements (EU RoHS Directive, China RoHS, etc.), ROHS3 compliance is mandatory. All Tier 1 and Tier 2 recommended substitutes carry ROHS3 certification. The original MUR220 is RoHS non-compliant; substitution with compliant alternatives is required for regulated applications.

Q8: Which substitute offers the best inventory availability?

A: EGP20D-E3/73 (Vishay) provides the highest inventory availability at 3900 pcs in stock. MUR220G (onsemi) offers 4150 pcs. Both parts are readily available for immediate procurement. Specific inventory levels should be verified with component suppliers for current availability.

Q9: What is the operating temperature range difference between MUR220 and substitute parts?

A: MUR220 operates -65°C to 175°C. EGP20D series operates -65°C to 150°C (10°C lower maximum). BYW32-TR and BYT53D series operate -55°C to 175°C (10°C higher minimum). For applications requiring the full -65°C to 175°C range, MUR220G or BYW32-TR are appropriate selections.

Q10: Can multiple substitute parts be used interchangeably within a single system?

A: Yes, provided all selected parts meet the circuit's electrical requirements (minimum 200 V reverse voltage, minimum 2 A current capacity, fast recovery speed). However, using multiple part types within a single system complicates inventory management and troubleshooting. Standardizing on a single substitute part (preferably MUR220G) is recommended for production consistency and supply chain efficiency.

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