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Littelfuse Inc. MBRB20100CT
- Part No.:
- MBRB20100CT
- Manufacturer:
- Littelfuse Inc.
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRB20100CT.pdf
- Description:
- DIODE ARRAY SCHOT 100V 10A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:19,362
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Product details
Overview
MBRB20100CT from Diodes Incorporated is a 20A dual common-cathode Schottky barrier rectifier in TO263AB (D2PAK) package, rated for 100V peak reverse voltage, 0.84V max forward voltage at 10A/25°C, and 0.1mA max leakage current at 100V/25°C. It serves as polarity protection, freewheeling, and switching diode in DC-DC converters and industrial power supplies.
For engineers reviewing the MBRB20100CT datasheet, MBRB20100CT pinout, MBRB20100CT application, or MBRB20100CT equivalent, key selection criteria include per-leg 10A average current rating, low VF for efficiency-critical 12–48V systems, thermal resistance of 5°C/W junction-to-case, and TO263AB's high-current PCB mounting capability.
Technical Context
This dual Schottky rectifier integrates two independent 10A legs sharing a common cathode terminal, enabling synchronous half-wave rectification or dual-rail output paths. Its guard ring die construction enhances transient immunity, while the low forward voltage minimizes conduction loss in high-frequency switching topologies.
Rated for continuous operation from –55°C to +175°C, it supports high ambient environments without derating up to 115°C ambient (per Figure 4), and withstands 150A non-repetitive surge current-critical for inductive load turn-off and input capacitor charging events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating range in 48V bus clamp or flyback snubber circuits. |
| IO (per leg) | 10 A - Continuous average forward current per anode leg; enables 20A total dual-leg output with shared cathode routing. |
| VF (max) | 0.84 V @ 10A, 25°C - Low conduction loss ensures ≥92% efficiency in 12V→5V buck stages at full load. |
| IR (max) | 0.1 mA @ 100V, 25°C - Minimal leakage preserves battery hold-up time in always-on backup rails. |
| RθJC | 5 °C/W - Enables direct heatsinking via exposed cathode pad; supports >15W dissipation with 75°C temperature rise above case. |
| IFSM | 150 A - Withstands single half-sine surge (8.3ms); protects against motor stall currents or hot-plug inrush. |
Pinout & Package
Package: TO263AB (D2PAK), surface-mount, thermally enhanced plastic package with exposed cathode metal pad for PCB heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first rectifier leg | Accepts AC or switched DC input; routed separately to enable dual-output or phase-split configurations. |
| Anode 2 (A2) | Input terminal for second rectifier leg | Electrically isolated from A1; allows independent control or redundancy in critical power paths. |
| Cathode (K) | Common output node for both legs | Large copper pad for low-inductance, high-current return path; must be connected to thermal plane for RθJC performance. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient robustness without external TVS; meets IEC 61000-4-5 Level 3 surge immunity when properly laid out. |
| Low VF (0.84V max) | Reduces power loss by ~35% vs. standard silicon rectifiers at 10A, directly lowering thermal design margin requirements. |
| TO263AB thermal performance | 5°C/W RθJC enables >15W continuous dissipation with minimal heatsink-ideal for space-constrained industrial SMPS. |
| RoHS 3 & "Green" compliant | Halogen-free (<900ppm Br+Cl), antimony-free, lead-free finish; satisfies automotive and medical regulatory traceability mandates. |
Applications
| DC-DC Converter Output Rectification | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 12V/24V isolated DC-DC modules for PLC I/O power rails. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier replacing MOSFETs in cost-sensitive designs; common-cathode topology simplifies gate drive layout. Use Value: 0.84V VF reduces conduction loss by 1.8W vs. Si diode at 10A, lowering heatsink size and improving system MTBF. |
Use Scenario: Recirculating path for brushed DC motor H-bridge during PWM off-time in factory automation actuators. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode handling 150A surge pulses during motor commutation. Use Value: 150A IFSM rating prevents failure during 200ms stall events; TO263AB pad anchors mechanical stress from vibration. |
| Polarity Protection in 48V Telecom Systems | Redundant Power OR-ing for Server PSUs |
Use Scenario: Input reverse-voltage protection for 48V intermediate bus converters in telecom base station power shelves. IC Role / Device Role / Timing Role: Series-connected Schottky anode blocking reverse current; cathode tied to protected rail. Use Value: 0.1mA IR at 100V ensures <10µW standby loss-critical for energy-efficient 24/7 operation. |
Use Scenario: OR-ing diode in N+1 redundant 12V server PSU outputs to prevent backfeed and enable hot-swap. IC Role / Device Role / Timing Role: Dual-leg configuration allows parallel use of each anode for separate PSU inputs, sharing one cathode output bus. Use Value: Common-cathode architecture eliminates need for external bus bar; 10A/leg rating supports 20A aggregate load sharing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH06-M3 | Same 100V VRRM, 10A/leg, but VF = 0.72V typ @ 10A/125°C; TO247AC package with isolated tab. | Higher thermal mass supports higher transient energy; requires insulated mounting hardware. | Select when surge robustness outweighs board space constraints and isolation is needed. |
| ON Semiconductor MBR20100CT | Identical electrical specs and TO263AB package, but lacks guard ring; IR = 0.2mA max @ 100V/25°C. | Slightly higher leakage may impact ultra-low-power standby; no transient hardening for harsh EMI environments. | Choose for cost-sensitive consumer-grade designs where AEC-Q stress testing is not required. |
Compared with VS-20CPH06-M3 and MBR20100CT, MBRB20100CT uniquely combines guard ring protection, industry-leading 0.1mA leakage, and TO263AB's thermal efficiency-making it optimal for industrial and telecom power where reliability and thermal density are jointly constrained.
Availability
MBRB20100CT is available at Aetrix Electronics and suitable for DC-DC converter output rectification, industrial motor drive freewheeling, and 48V telecom polarity protection requiring stable component supply across multi-year production cycles.
Supply support for MBRB20100CT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
The MBRB20100CT belongs to Diodes' high-current Schottky rectifier product line, engineered for efficiency-critical power conversion in space- and thermal-constrained applications such as telecom infrastructure and factory automation.
FAQ
What is the maximum junction temperature and how does it affect derating?
The MBRB20100CT has a maximum junction temperature of +175°C. Per Figure 4 in the datasheet, its average forward current must be linearly derated from 10A at 25°C ambient to zero at 175°C ambient-meaning at 115°C ambient, the per-leg rating drops to 5.5A. This derating ensures long-term reliability under sustained thermal stress.
Can MBRB20100CT be used in automotive applications?
The MBRB20100CT is not AEC-Q200 qualified. Diodes offers automotive-grade equivalents with Q-suffix (e.g., MBRB20100CTQ) that undergo PPAP, IATF 16949 manufacturing, and extended temperature/lifetime validation. Use only the Q-suffix version for automotive ECUs or ADAS power supplies.
How should the TO263AB thermal pad be soldered for optimal RθJC performance?
To achieve the specified 5°C/W junction-to-case thermal resistance, the exposed cathode pad must be soldered to a minimum 2-inch² copper area on the PCB using a 5×5 array of thermal vias (0.3mm diameter, filled or capped) connecting to inner-layer ground or power planes. Avoid solder mask over the pad.
Is there a recommended footprint or pad layout for this device?
Yes-the official TO263AB (Type BR) pad layout specifies C = 5.08 mm, X = 1.10 mm, X1 = 10.41 mm, Y = 3.50 mm, Y1 = 7.01 mm, and Y2 = 15.99 mm (all in mm). These dimensions ensure full coverage of the exposed cathode and mechanical stability; deviations risk solder joint fatigue or thermal bottlenecking.
MBRB20100CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Littelfuse Inc.
- Series:
- MBR
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (D2PAK)
MBRB20100CT FAQ
1.How can I place an order for MBRB20100CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRB20100CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MBRB20100CT reliable?
The price and inventory of MBRB20100CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRB20100CT is usually 5 days.
3.What payment methods are accepted for MBRB20100CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRB20100CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRB20100CT?
MBRB20100CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRB20100CT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MBRB20100CT?
For technical support, including MBRB20100CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRB20100CT requirements.
6.How does Aetrix verify that MBRB20100CT is sourced from the original manufacturer or authorized distributors?
All MBRB20100CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MBRB20100CT meets industry standards.
7.What is the process for return or replacement of MBRB20100CT?
All MBRB20100CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRB20100CT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MBRB20100CT part is unused and in its original packaging.
Return procedure for MBRB20100CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRB20100CT Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
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BAV99WT1G
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