MBRB2535CT Equivalent & Substitute Parts

Part Overview

The MBRB2535CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 35 V DC reverse voltage and 15 A average rectified current per diode. The device is packaged in TO-263-3 (D2PAK) surface mount format with a tab for thermal management.

The MBRB2535CT is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	820 mV @ 30 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 35 V
Operating Temperature - Junction	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MBRB2535CT is determined by the following critical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 35 V minimum
Current - Average Rectified (Io) (per Diode): 15 A minimum
Diode Configuration: 1 Pair Common Cathode
Technology: Schottky

Mechanical Parameters:

Mounting Type: Surface Mount
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB or compatible footprint

Thermal Parameters:

Operating Temperature - Junction: -65°C ~ 150°C range

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts that match all electrical and mechanical specifications with identical or superior performance characteristics. These parts are direct replacements with no design modifications required.

Manufacturer Recommended Alternatives: Parts that meet the core electrical requirements but may differ in secondary parameters such as forward voltage, reverse leakage current, or operating temperature range. These parts require design review to confirm suitability for the specific application.

Parameter Comparison

Parameter	MBRB2535CT	VS-MBRB2535CTL-M3	VS-MBRB2535CTR-M3	MBRD1035CTLT4G	STPS30L45CG-TR
Manufacturer	Vishay	Vishay	Vishay	onsemi	STMicroelectronics
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	35 V	35 V	45 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	10 A	15 A
Voltage - Forward (Vf) (Max) @ If	820 mV @ 30 A	820 mV @ 30 A	820 mV @ 30 A	470 mV @ 5 A	550 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 35 V	200 µA @ 35 V	200 µA @ 35 V	2 mA @ 35 V	400 µA @ 45 V
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	150°C (Max)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-252-3, DPAK	TO-263-3, D2PAK
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred):

VS-MBRB2535CTL-M3 and VS-MBRB2535CTR-M3 are parametric equivalents manufactured by Vishay General Semiconductor - Diodes Division. Both parts are active products with ROHS3 compliance and identical electrical specifications to the MBRB2535CT. The primary difference between these two parts is packaging format: VS-MBRB2535CTL-M3 is supplied in Tape & Reel (TR) format with 852 pieces in stock, while VS-MBRB2535CTR-M3 is also supplied in Tape & Reel (TR) format with 1121 pieces in stock. Both parts maintain the same TO-263-3 D2PAK package footprint and thermal characteristics. These parts are suitable for direct substitution without design modification.

Manufacturer Recommended Alternatives:

MBRD1035CTLT4G (onsemi) is a manufacturer-recommended alternative with the same 35 V reverse voltage rating and Schottky technology. This part differs in current rating (10 A versus 15 A per diode) and package format (TO-252-3 DPAK versus TO-263-3 D2PAK). The DPAK package has different footprint dimensions and thermal characteristics compared to D2PAK. This part is suitable only for applications where the 10 A current rating is sufficient and the DPAK footprint is compatible with the PCB design.

STPS30L45CG-TR (STMicroelectronics) is a manufacturer-recommended alternative with a higher reverse voltage rating (45 V versus 35 V) and identical 15 A current rating. This part maintains the TO-263-3 D2PAK package format. The higher voltage rating provides additional design margin for overvoltage conditions. This part is suitable for direct substitution in applications where the higher voltage rating does not create design conflicts.

Compliance Considerations:

The MBRB2535CT is RoHS non-compliant. All substitute parts (VS-MBRB2535CTL-M3, VS-MBRB2535CTR-M3, MBRD1035CTLT4G, and STPS30L45CG-TR) are ROHS3 compliant. Selection of substitute parts provides compliance with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can VS-MBRB2535CTL-M3 or VS-MBRB2535CTR-M3 be used as direct replacements for MBRB2535CT?

A: Yes. Both VS-MBRB2535CTL-M3 and VS-MBRB2535CTR-M3 are parametric equivalents with identical electrical specifications, diode configuration, voltage rating, current rating, and package format. No design modifications are required. The difference between these two parts is packaging format (both are Tape & Reel), which affects procurement and assembly processes but not electrical performance.

Q: What is the difference between the TO-263-3 D2PAK and TO-252-3 DPAK packages?

A: Both packages are surface mount formats with 2 leads plus a tab for thermal management. The TO-263-3 D2PAK and TO-252-3 DPAK have different physical dimensions and PCB footprints. The D2PAK package is larger and provides better thermal dissipation. If MBRD1035CTLT4G is selected, the PCB layout must be verified to confirm that the DPAK footprint is compatible with the existing design. Direct footprint substitution is not possible without PCB modification.

Q: Can MBRD1035CTLT4G be used in place of MBRB2535CT?

A: MBRD1035CTLT4G can be used only if the application current requirement does not exceed 10 A per diode. The MBRB2535CT is rated for 15 A per diode, while MBRD1035CTLT4G is rated for 10 A per diode. Additionally, the package format differs (DPAK versus D2PAK), requiring PCB layout verification. The forward voltage characteristic also differs (470 mV @ 5 A versus 820 mV @ 30 A), which may affect circuit performance in high-current applications.

Q: Can STPS30L45CG-TR be used in place of MBRB2535CT?

A: Yes. STPS30L45CG-TR maintains the same 15 A current rating, Schottky technology, and TO-263-3 D2PAK package format. The reverse voltage rating is higher (45 V versus 35 V), which provides additional design margin. The forward voltage is lower (550 mV @ 15 A versus 820 mV @ 30 A), which may reduce power dissipation in the circuit. No design modifications are required for direct substitution.

Q: What is the significance of the RoHS compliance difference?

A: The MBRB2535CT is RoHS non-compliant, while all substitute parts are ROHS3 compliant. RoHS3 compliance indicates that the parts do not contain restricted hazardous substances as defined by current environmental regulations. For new designs and applications subject to environmental regulations, ROHS3-compliant parts are required. For legacy systems using non-compliant parts, substitution with compliant alternatives provides regulatory alignment.

Q: Are there inventory considerations when selecting a substitute part?

A: Yes. Current inventory levels vary: MBRB2535CT has 1560 pieces in stock, VS-MBRB2535CTL-M3 has 852 pieces, VS-MBRB2535CTR-M3 has 1121 pieces, MBRD1035CTLT4G has 70400 pieces, and STPS30L45CG-TR has 5200 pieces. Inventory availability may influence part selection for immediate procurement needs.

Q: What are the thermal operating range differences between substitute parts?

A: MBRB2535CT, VS-MBRB2535CTL-M3, and VS-MBRB2535CTR-M3 all operate from -65°C to 150°C. MBRD1035CTLT4G operates from -55°C to 150°C, with a narrower low-temperature range. STPS30L45CG-TR specifies 150°C as maximum junction temperature without a minimum temperature specification. For applications requiring operation below -55°C, MBRB2535CT or its Vishay equivalents are required.

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