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MBRB2540CT-TP Equivalent & Substitute Parts
Part Overview
The MBRB2540CT-TP is a Schottky diode array manufactured by Micro Commercial Co, configured as 1 pair common cathode with a maximum reverse voltage of 40 V and average rectified current of 30 A per diode. The device is packaged in TO-263-3 D2PAK surface mount configuration with 2 leads plus tab. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Diode Configuration | 1 Pair Common Cathode |
| Technology | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 40 V |
| Current - Average Rectified (Io) (per Diode) | 30 A |
| Voltage - Forward (Vf) (Max) @ If | 820 mV @ 30 A |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) |
| Current - Reverse Leakage @ Vr | 200 µA @ 40 V |
| Operating Temperature - Junction | -55°C ~ 150°C |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB |
Substitute Part Grouping Explanation
Substitute parts for the MBRB2540CT-TP are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:
Critical Compatibility Parameters:
- Diode Configuration: 1 Pair Common Cathode
- Technology: Schottky
- Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Mounting Type: Surface Mount
- Operating Temperature Range: -55°C ~ 150°C
Voltage and Current Ratings: Substitute parts must maintain compatibility with the application's voltage and current requirements. Parts with equal or higher voltage ratings and equal or higher current ratings are considered suitable substitutes, provided all other electrical and mechanical parameters remain within acceptable ranges.
Identified Substitutes:
-
MBRB2545CT-TP (Manufacturer Recommended): Maintains identical configuration, package, and temperature range with upgraded voltage rating (45 V vs. 40 V) and equivalent current rating (30 A). Product status is active.
-
MBRS6040CT (Similar Substitute): Maintains identical voltage rating (40 V) and package configuration with doubled current rating (60 A vs. 30 A). Manufactured by Taiwan Semiconductor Corporation with active product status.
Parameter Comparison
| Parameter | MBRB2540CT-TP (Main) | MBRB2545CT-TP (MFR Recommended) | MBRS6040CT (Similar) |
|---|---|---|---|
| Manufacturer | Micro Commercial Co | Micro Commercial Co | Taiwan Semiconductor Corporation |
| Product Status | Obsolete | Active | Active |
| Diode Configuration | 1 Pair Common Cathode | 1 Pair Common Cathode | 1 Pair Common Cathode |
| Technology | Schottky | Schottky | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 40 V | 45 V | 40 V |
| Current - Average Rectified (Io) (per Diode) | 30 A | 30 A | 60 A |
| Voltage - Forward (Vf) (Max) @ If | 820 mV @ 30 A | 750 mV @ 15 A | 1.05 V @ 60 A |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) |
| Current - Reverse Leakage @ Vr | 200 µA @ 40 V | 200 µA @ 45 V | 100 µA @ 40 V |
| Operating Temperature - Junction | -55°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB |
Engineering Selection Recommendations
MBRB2545CT-TP (Manufacturer Recommended Substitute): This part is the primary recommended substitute for the obsolete MBRB2540CT-TP. It is manufactured by the same supplier (Micro Commercial Co) and maintains identical electrical configuration and package specifications. The MBRB2545CT-TP carries active product status, ensuring long-term availability and supply chain continuity. The upgraded voltage rating (45 V vs. 40 V) provides enhanced margin for applications operating at or near the 40 V specification of the original part. Both parts are REACH unaffected and carry EAR99 ECCN classification.
MBRS6040CT (Alternative Substitute): This part provides an alternative substitution path with identical voltage rating (40 V) and package configuration. The MBRS6040CT offers doubled current capacity (60 A vs. 30 A per diode), making it suitable for applications requiring higher current handling. This part is manufactured by Taiwan Semiconductor Corporation with active product status. The MBRS6040CT carries RoHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, providing additional environmental qualification. Both parts maintain identical operating temperature range and fast recovery speed characteristics.
Frequently Asked Questions (FAQ)
Q: Can MBRB2545CT-TP be used as a direct replacement for MBRB2540CT-TP?
A: Yes. The MBRB2545CT-TP maintains identical diode configuration (1 pair common cathode), technology (Schottky), package (TO-263-3 D2PAK), and operating temperature range (-55°C to 150°C). The 45 V rating provides compatibility with 40 V applications. Both parts are surface mount devices with identical lead configuration.
Q: What is the difference between MBRB2545CT-TP and MBRS6040CT?
A: Both parts share identical voltage rating (40 V for MBRS6040CT, 45 V for MBRB2545CT-TP) and package configuration. The primary difference is current capacity: MBRB2545CT-TP is rated for 30 A per diode, while MBRS6040CT is rated for 60 A per diode. MBRS6040CT is manufactured by Taiwan Semiconductor Corporation, whereas MBRB2545CT-TP is manufactured by Micro Commercial Co.
Q: Are all three parts pin-compatible?
A: Yes. All three parts (MBRB2540CT-TP, MBRB2545CT-TP, and MBRS6040CT) use identical TO-263-3 D2PAK packaging with 2 leads plus tab configuration, ensuring mechanical and electrical pin compatibility on PCB layouts.
Q: Why is MBRB2540CT-TP classified as obsolete?
A: The MBRB2540CT-TP is listed as obsolete by the manufacturer. The MBRB2545CT-TP is the active replacement part from the same manufacturer, offering improved specifications and guaranteed long-term availability.
Q: Can MBRS6040CT be used in applications requiring exactly 30 A?
A: Yes. MBRS6040CT is rated for 60 A per diode, which exceeds the 30 A requirement. The part operates within specification at lower current levels. The higher current rating provides design margin and does not create incompatibility with 30 A applications.
Q: What are the compliance differences between the substitute parts?
A: MBRB2540CT-TP and MBRB2545CT-TP are both REACH unaffected with EAR99 ECCN classification. MBRS6040CT is RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, providing additional environmental qualification documentation.
Q: Are there thermal performance differences between the substitutes?
A: All three parts maintain identical operating temperature range (-55°C to 150°C junction temperature). Forward voltage characteristics differ: MBRB2540CT-TP is 820 mV @ 30 A, MBRB2545CT-TP is 750 mV @ 15 A, and MBRS6040CT is 1.05 V @ 60 A. These differences reflect the respective current ratings and should be evaluated for thermal design considerations in specific applications.
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