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Vishay General Semiconductor - Diodes Division MURB2020CT-1
- Part No.:
- MURB2020CT-1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
MURB2020CT-1.pdf
- Description:
- DIODE ARRAY GP 200V 10A TO-262-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,175
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Product details
Overview
MURB2020CT-1 from Vishay is a dual ultrafast recovery rectifier in TO-262 package, rated for 2 × 10 A average forward current per leg, 200 V peak repetitive reverse voltage, and 25 ns typical reverse recovery time at 25 °C. It serves as a center-tapped output rectifier in high-frequency SMPS and as a freewheeling diode in low-voltage motor drives.
For engineers reviewing the MURB2020CT-1 datasheet, MURB2020CT-1 pinout, MURB2020CT-1 application, or MURB2020CT-1 equivalent, key selection criteria include its 175 °C junction temperature rating, platinum-doped FRED Pt® technology, AEC-Q101 qualification, and low 0.85 V forward voltage at 8 A and 125 °C.
Technical Context
The MURB2020CT-1 integrates two independent ultrafast silicon diodes in a single TO-262 molded package with common cathode configuration. Its planar structure and platinum diffusion lifetime control enable precise recovery characteristics and rugged thermal performance.
It operates with 2.5 °C/W thermal resistance (junction-to-case per leg), supports 100 A non-repetitive surge current per leg, and delivers low stored charge (25 nC typical at 25 °C) to minimize switching losses in hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 200 V - blocks up to 200 V reverse voltage without breakdown |
| IF(AV) | 2 × 10 A - sustains 10 A average forward current per diode leg at TC = 145 °C |
| trr | 25 ns typ. - enables operation in >1 MHz SMPS designs with minimal reverse recovery loss |
| VF | 0.85 V max @ 8 A, 125 °C - reduces conduction loss in high-duty-cycle output stages |
| TJ | –65 to +175 °C - supports automotive under-hood and industrial high-temp environments |
| Qrr | 25 nC typ. @ 25 °C - lowers snubber stress and EMI generation during turn-off |
| RthJC | 2.5 °C/W per leg - allows efficient heatsinking with moderate thermal interface resistance |
Pinout & Package
Package: TO-262 (3-lead, straight lead version of TO-220, isolated tab). Mounting surface is electrically isolated from internal circuitry. Thermal pad requires mechanical fastening and thermal grease for optimal RthJC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode 1) | Anode of first diode | Connects to switching node (e.g., transformer secondary or half-bridge leg) |
| 2 (Common Cathode) | Shared cathode terminal | Output node for center-tapped full-wave rectification; ties both diodes' cathodes together |
| 3 (Anode 2) | Anode of second diode | Connects to complementary switching node (e.g., opposite transformer winding) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control and ADAS DC/DC converters |
| FRED Pt® technology | Platinum-doped lifetime control ensures consistent trr and Qrr across temperature and current |
| 175 °C maximum junction temperature | Enables compact thermal design in space-constrained industrial inverters and UPS systems |
| Low leakage (250 µA max @ 150 °C) | Maintains efficiency in high-temperature standby modes without excessive reverse power loss |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and EU Directive 2002/95/EC for environmentally regulated end equipment |
Applications
| Server Power Supply Rectification | Automotive DC/DC Converter Output |
|---|---|
Use Scenario: High-efficiency 48 V to 12 V or 5 V conversion in datacenter server PSUs operating at 300–500 kHz. IC Role / Device Role / Timing Role: Dual center-tapped output rectifier replacing synchronous MOSFETs where cost and layout simplicity are prioritized. Use Value: 25 ns trr and 0.85 V VF reduce total power loss by >15% vs. standard fast recovery diodes at 10 A load. | Use Scenario: 12 V battery-fed DC/DC converter powering infotainment and ADAS ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in buck or flyback topology, handling transient load dumps up to 100 A surge. Use Value: AEC-Q101 qualification and 175 °C TJ ensure reliability over full automotive temperature range (–40 to +125 °C ambient). |
| Industrial Motor Drive Chopper | Uninterruptible Power Supply (UPS) Output Stage |
Use Scenario: Low-voltage chopper drive for BLDC or stepper motors in factory automation, operating at 20–100 kHz PWM. IC Role / Device Role / Timing Role: Freewheeling path for inductive motor windings during PWM off-time. Use Value: Low Qrr (25 nC) minimizes voltage overshoot and snubber dissipation, extending IGBT/MOSFET lifetime. | Use Scenario: Output rectification in online double-conversion UPS systems requiring high reliability and low maintenance. IC Role / Device Role / Timing Role: Center-tapped full-wave rectifier converting transformer secondary AC to regulated DC bus. Use Value: 2.5 °C/W RthJC and robust 100 A IFSM support continuous 20 A output with field-serviceable thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast dual rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH20L06D | 600 V VR, 20 A total IF(AV), 35 ns trr, TO-220AC package | Higher voltage rating suits 400 V PFC front-end; slower recovery increases switching loss in >200 kHz designs | Select when system requires >200 V blocking with legacy TO-220 footprint and lower cost is critical |
| IXYS MURB2020CT | Same electrical specs but D2PAK (TO-263) package; 2.0 °C/W RthJC; no AEC-Q101 qualification | D2PAK offers better thermal performance on PCB but lacks automotive qualification and has different mounting torque spec | Choose for non-automotive high-power SMPS where board-level thermal conduction is preferred over heatsink mounting |
Compared with STTH20L06D and IXYS MURB2020CT, the MURB2020CT-1 uniquely balances automotive qualification, TO-262 mechanical robustness, and optimized 25 ns recovery for 200 V-class high-frequency rectification-making it the preferred choice where AEC-Q101 compliance and heatsink-mount thermal management are mandatory.
Availability
MURB2020CT-1 is available at Aetrix Electronics and suitable for server power supplies, automotive DC/DC converters, and industrial motor drives requiring stable component supply and long-term lifecycle support.
Supply support for MURB2020CT-1 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
Vishay Intertechnology is a global semiconductor and passive components manufacturer specializing in discrete power devices, sensors, and resistive solutions.
The MURB2020CT-1 belongs to Vishay's FRED Pt® ultrafast rectifier product line, engineered for high-efficiency, high-frequency power conversion in automotive, industrial, and computing applications where low recovery loss and thermal ruggedness are essential.
FAQ
What is the maximum junction temperature rating for the MURB2020CT-1?
The MURB2020CT-1 has a maximum operating junction temperature of +175 °C, verified per Vishay's datasheet Document Number 94083. This rating enables reliable operation in high-ambient environments such as automotive engine compartments or enclosed industrial power modules. The device maintains specified electrical parameters-including forward voltage and reverse leakage-up to this limit when thermal design respects the 2.5 °C/W junction-to-case resistance per leg.
Is the MURB2020CT-1 pin-compatible with the MURB2020CTPbF variant?
No-the MURB2020CT-1 uses the TO-262 package with straight leads and isolated tab, while the MURB2020CTPbF uses the D2PAK (TO-263) surface-mount package. Although both share identical electrical specifications and dual center-tapped topology, their footprints, mounting methods, and thermal paths differ fundamentally. The MURB2020CT-1 requires through-hole soldering and mechanical heatsink attachment; the D2PAK variant relies on PCB copper area for thermal dissipation.
Does the MURB2020CT-1 meet automotive qualification standards?
Yes-the MURB2020CT-1 is explicitly AEC-Q101 qualified per the Vishay datasheet, making it suitable for automotive powertrain, body electronics, and ADAS subsystems. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature reverse bias-ensuring reliability under harsh vehicle operating conditions. The 175 °C TJ rating and halogen-free construction further align with automotive manufacturing requirements.
What is the typical reverse recovery charge (Qrr) of the MURB2020CT-1 at 125 °C?
At 125 °C junction temperature, the MURB2020CT-1 exhibits a typical reverse recovery charge (Qrr) of 78 nC, as specified in the Dynamic Recovery Characteristics table of Document Number 94083. This value is measured under standardized conditions (IF = 10 A, dIF/dt = 200 A/µs, VR = 160 V) and directly impacts snubber sizing and switching loss in hard-switched converters. Designers should use this elevated Qrr for thermal and EMI margining in high-temperature operation.
How does the MURB2020CT-1's forward voltage compare at 125 °C versus 25 °C?
The MURB2020CT-1's forward voltage decreases with rising temperature: at 8 A, VF is 0.95 V typical at 25 °C but drops to 0.85 V maximum at 125 °C due to the negative temperature coefficient of silicon diodes. This behavior improves conduction efficiency in thermally stressed operation, though designers must verify that the reduced VF does not cause unintended current imbalance in parallel configurations. The datasheet confirms this trend across the full 16 A test range.
MURB2020CT-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- FRED Pt®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 15 µA @ 200 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262-3
MURB2020CT-1 FAQ
1.How can I place an order for MURB2020CT-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MURB2020CT-1 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 MURB2020CT-1 reliable?
The price and inventory of MURB2020CT-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MURB2020CT-1 is usually 5 days.
3.What payment methods are accepted for MURB2020CT-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MURB2020CT-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MURB2020CT-1?
MURB2020CT-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MURB2020CT-1 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 MURB2020CT-1?
For technical support, including MURB2020CT-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MURB2020CT-1 requirements.
6.How does Aetrix verify that MURB2020CT-1 is sourced from the original manufacturer or authorized distributors?
All MURB2020CT-1 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 MURB2020CT-1 meets industry standards.
7.What is the process for return or replacement of MURB2020CT-1?
All MURB2020CT-1 units undergo pre-shipment inspection (PSI). If there is an issue with MURB2020CT-1, 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 MURB2020CT-1 part is unused and in its original packaging.
Return procedure for MURB2020CT-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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