MBRS4201T3 Equivalent & Substitute Parts

Part Overview

The MBRS4201T3 is a Schottky rectifier diode rated for 200 V DC reverse voltage and 4 A average rectified current in a surface mount SMC (DO-214AB) package. This part is classified as obsolete and is no longer in active production. Locating equivalent or substitute components is necessary for new designs, production continuity, and long-term component availability. Active alternatives with identical or compatible electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	4 A
Voltage - Forward (Vf) (Max) @ If	860 mV @ 4 A
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	1 mA @ 200 V
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Package / Case	DO-214AB, SMC
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky

Substitute Part Grouping Explanation

Substitution of the MBRS4201T3 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V (exact match required)
Current - Average Rectified (Io): 4 A (exact match required for direct substitution)
Voltage - Forward (Vf) (Max) @ If: 860 mV @ 4 A (exact match required)
Reverse Recovery Time (trr): 35 ns (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature - Junction: -55°C ~ 150°C (exact match required)

Parametric Equivalent Parts maintain all critical electrical and thermal specifications. These parts are direct functional replacements with identical performance characteristics.

Similar Parts share the same package, voltage rating, and technology but differ in current rating or other secondary parameters. These parts are suitable only when the application can tolerate the specified parameter variation.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Package	RoHS Status
MBRS4201T3	onsemi	Obsolete	200 V	4 A	860 mV @ 4 A	35 ns	1 mA @ 200 V	DO-214AB, SMC	RoHS non-compliant
MBRS4201T3G	onsemi	Active	200 V	4 A	860 mV @ 4 A	35 ns	1 mA @ 200 V	DO-214AB, SMC	ROHS3 Compliant
NRVBS4201T3G	onsemi	Active	200 V	4 A	860 mV @ 4 A	35 ns	1 mA @ 200 V	DO-214AB, SMC	ROHS3 Compliant
MB420L_R1_00001	Panjit International Inc.	Active	200 V	4 A	860 mV @ 4 A	35 ns	5 µA @ 200 V	DO-214AB, SMC	ROHS3 Compliant
SK4200L-TP	Micro Commercial Co	Active	200 V	4 A	860 mV @ 4 A	35 ns	500 µA @ 200 V	DO-214AB, SMC	ROHS3 Compliant
SK3200-TP	Micro Commercial Co	Active	200 V	3 A	860 mV @ 3 A	Not specified	500 µA @ 200 V	DO-214AB, SMC	ROHS3 Compliant
VSSC520S-M3/57T	Vishay General Semiconductor - Diodes Division	Active	200 V	5 A	1.7 V @ 5 A	Not specified	200 µA @ 200 V	DO-214AB, SMC	ROHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended for Replacement):

MBRS4201T3G, NRVBS4201T3G, MB420L_R1_00001, and SK4200L-TP are parametric equivalents that maintain all critical electrical specifications of the MBRS4201T3. These parts are suitable for direct substitution in existing designs without circuit modification.

MBRS4201T3G and NRVBS4201T3G are onsemi products with ROHS3 compliance and active product status, offering the highest compatibility with the original part. Both maintain identical reverse recovery time (35 ns) and forward voltage characteristics.

MB420L_R1_00001 (Panjit) and SK4200L-TP (Micro Commercial Co) provide equivalent electrical performance with ROHS3 compliance and active availability. These parts are suitable alternatives when onsemi parts are unavailable.

Similar Parts (Application-Dependent Selection):

SK3200-TP is rated for 3 A instead of 4 A. This part is suitable only for applications where the maximum current requirement does not exceed 3 A.

VSSC520S-M3/57T is rated for 5 A and features lower forward voltage (1.7 V @ 5 A) compared to the original specification (860 mV @ 4 A). This part is suitable only for applications where the higher forward voltage drop is acceptable and the 5 A rating provides design margin.

Compliance Considerations:

The original MBRS4201T3 is RoHS non-compliant. All active substitute parts listed are ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can MBRS4201T3G be used as a direct replacement for MBRS4201T3?

A: Yes. MBRS4201T3G is a parametric equivalent with identical electrical specifications (200 V, 4 A, 860 mV forward voltage, 35 ns recovery time) and the same DO-214AB SMC package. The primary difference is ROHS3 compliance and active product status.

Q: What is the difference between MBRS4201T3G and NRVBS4201T3G?

A: Both parts are onsemi Schottky diodes with identical electrical specifications and ROHS3 compliance. The difference lies in the base product number (MBRS4201 versus NRVBS4201) and internal design. Both are suitable direct replacements for the MBRS4201T3.

Q: Can SK3200-TP replace MBRS4201T3 in all applications?

A: No. SK3200-TP is rated for 3 A average rectified current, while MBRS4201T3 is rated for 4 A. SK3200-TP is suitable only for applications where the maximum current requirement does not exceed 3 A.

Q: What is the difference between MB420L_R1_00001 and SK4200L-TP?

A: Both parts are parametric equivalents with 200 V, 4 A, and 860 mV specifications. The primary difference is the manufacturer (Panjit versus Micro Commercial Co) and reverse leakage current (5 µA versus 500 µA at 200 V). Both are ROHS3 compliant and suitable for direct substitution.

Q: Can VSSC520S-M3/57T replace MBRS4201T3?

A: VSSC520S-M3/57T shares the same 200 V voltage rating and DO-214AB package but differs in current rating (5 A versus 4 A) and forward voltage (1.7 V @ 5 A versus 860 mV @ 4 A). This part is suitable only for applications where the higher forward voltage drop is acceptable.

Q: Are all substitute parts available in the same packaging format?

A: No. MBRS4201T3G and SK4200L-TP are supplied in Cut Tape (CT) & Digi-Reel® format. NRVBS4201T3G is supplied in Cut Tape (CT) & Digi-Reel® format. MB420L_R1_00001, SK3200-TP, and VSSC520S-M3/57T are supplied in Tape & Reel (TR) format. Verify packaging requirements for your production process.

Q: Why is the original MBRS4201T3 marked as obsolete?

A: The MBRS4201T3 is no longer in active production. Active alternatives with identical or superior specifications are available from multiple manufacturers, including the MBRS4201T3G from the same manufacturer (onsemi).

Q: What is the operating temperature range for substitute parts?

A: MBRS4201T3, MBRS4201T3G, NRVBS4201T3G, MB420L_R1_00001, and SK4200L-TP all operate from -55°C to 150°C junction temperature. VSSC520S-M3/57T operates from -40°C to 150°C. Verify the operating temperature range meets your application requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed (MBRS4201T3G, NRVBS4201T3G, MB420L_R1_00001, SK4200L-TP, SK3200-TP, and VSSC520S-M3/57T) are ROHS3 compliant. The original MBRS4201T3 is RoHS non-compliant.

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