MBRB20100CTT4 Equivalent & Substitute Parts

Part Overview

The MBRB20100CTT4 is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with 100 V reverse voltage rating and 10 A average rectified current per diode. The device is packaged in TO-263-3 (D2PAK) surface mount configuration and belongs to the SWITCHMODE™ series.

The MBRB20100CTT4 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. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and compliance requirements.

Substiute Parts

MBRB20100CTT4

onsemiIn Stock: 1527MBRB20100CTT4 Datasheet

Current PartRFQ

MBRB20100CTT4G

onsemiIn Stock: 24282MBRB20100CTT4G Datasheet

DirectRFQ

MBRB20100CT-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 8936MBRB20100CT-E3/4W Datasheet

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RB088NS100TL

Rohm SemiconductorIn Stock: 1212RB088NS100TL Datasheet

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RB228NS100TL

Rohm SemiconductorIn Stock: 4669RB228NS100TL Datasheet

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SDT20100CTB-13

Diodes IncorporatedIn Stock: 890SDT20100CTB-13 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB20100CTT4 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 100 V minimum
• Current - Average Rectified (Io) (per Diode): 10 A minimum
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Mounting Type: Surface Mount
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: ±50 mV tolerance
• Current - Reverse Leakage @ Vr: ±50 µA tolerance
• Operating Temperature - Junction: Minimum -55°C, Maximum 150°C acceptable
• RoHS Status: ROHS3 Compliant preferred for new designs

Substitute parts are grouped into two categories: direct equivalents (identical electrical and mechanical specifications) and similar parts (meeting or exceeding all mandatory criteria with acceptable variations in forward voltage or reverse leakage).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

MBRB20100CTT4G is the direct equivalent to the obsolete MBRB20100CTT4. Both parts share identical electrical specifications (100 V reverse voltage, 10 A average rectified current, 850 mV forward voltage at 10 A, -65 to 175 °C operating range) and identical packaging (TO-263-3, D2PAK). The MBRB20100CTT4G is active in production and ROHS3 compliant, making it the preferred replacement for new designs and production continuity.

Full-Specification Equivalent:

SDT20100CTB-13 (Diodes Incorporated) meets all mandatory electrical and mechanical criteria with identical 100 V reverse voltage and 10 A current rating. The forward voltage is lower (710 mV @ 10 A), providing improved efficiency. Operating temperature range is -55 to 150 °C, which is acceptable for most applications. This part is ROHS3 compliant and active in production.

Higher Current Capability:

RB228NS100TL (Rohm Semiconductor) provides 15 A average rectified current per diode, exceeding the 10 A requirement. This part is suitable for applications requiring higher current capacity within the same 100 V voltage class. It is AEC-Q101 qualified for automotive applications and ROHS3 compliant. Operating temperature maximum is 150 °C.

Lower Current Capability:

RB088NS100TL (Rohm Semiconductor) provides 5 A average rectified current per diode, which is below the 10 A requirement. This part is not suitable as a direct substitute for the MBRB20100CTT4 in applications requiring 10 A operation.

Vishay Alternative:

MBRB20100CT-E3/4W (Vishay General Semiconductor - Diodes Division) meets all mandatory criteria with 100 V reverse voltage and 10 A current rating. Forward voltage is 800 mV @ 10 A, which is 50 mV lower than the original specification. Operating temperature maximum is 150 °C. This part is ROHS3 compliant and active in production.

Frequently Asked Questions (FAQ)

Q: Can RB088NS100TL be used as a substitute for MBRB20100CTT4?

A: No. RB088NS100TL is rated for 5 A average rectified current per diode, which is below the 10 A requirement of the MBRB20100CTT4. Using this part in a 10 A application would exceed its current rating and cause device failure.

Q: What is the difference between MBRB20100CTT4 and MBRB20100CTT4G?

A: Both parts are electrically and mechanically identical. The primary difference is product status: MBRB20100CTT4 is obsolete, while MBRB20100CTT4G is active in production. MBRB20100CTT4G is ROHS3 compliant, whereas the original part is RoHS non-compliant. MBRB20100CTT4G is the direct replacement.

Q: Is the operating temperature range difference between MBRB20100CTT4 (-65 to 175 °C) and substitute parts (-55 to 150 °C) significant?

A: The difference is significant for applications operating at extreme temperatures. The original part supports junction temperatures up to 175 °C, while most substitutes are limited to 150 °C maximum. Applications requiring operation above 150 °C junction temperature must use MBRB20100CTT4G, which maintains the -65 to 175 °C range.

Q: Can MBRB20100CT-E3/4W replace MBRB20100CTT4 in all applications?

A: MBRB20100CT-E3/4W meets all mandatory electrical and mechanical criteria. The forward voltage is 50 mV lower (800 mV vs. 850 mV @ 10 A), which improves efficiency. However, the maximum operating temperature is 150 °C versus 175 °C for the original part. Applications operating above 150 °C junction temperature require verification of thermal performance.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This configuration contains two diodes with a shared cathode terminal. The common cathode connection is internal to the device. All substitute parts must maintain this same configuration to ensure pin compatibility and circuit functionality.

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

A: Yes. All substitute parts listed are packaged in TO-263-3 (D2PAK) surface mount configuration with 2 leads plus tab, ensuring mechanical compatibility with the original MBRB20100CTT4 footprint.

Q: Why is RB228NS100TL listed as a substitute if it has 15 A rating instead of 10 A?

A: RB228NS100TL exceeds the 10 A requirement and is therefore suitable for applications requiring the MBRB20100CTT4 specification. A higher current rating provides design margin and is not a limitation. This part is particularly useful for applications with potential current growth or thermal margin requirements.

Q: What is the significance of ROHS3 compliance for substitute selection?

A: ROHS3 compliance is required for new product designs and manufacturing in most markets. The original MBRB20100CTT4 is RoHS non-compliant, making it unsuitable for new designs. All active substitute parts listed are ROHS3 compliant, ensuring regulatory compliance for current and future production.

Q: Can SDT20100CTB-13 be used in high-temperature applications?

A: SDT20100CTB-13 has a maximum operating temperature of 150 °C, which is 25 °C lower than the original MBRB20100CTT4 (175 °C maximum). Applications requiring operation above 150 °C junction temperature must use MBRB20100CTT4G or verify thermal performance under actual operating conditions.