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Taiwan Semiconductor Corporation MUR420HB0G
- Part No.:
- MUR420HB0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
MUR420HB0G.pdf
- Description:
- DIODE GEN PURP 200V 4A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
MUR420HB0G from Taiwan Semiconductor is an AEC-Q101-qualified ultra-fast recovery rectifier diode in DO-201AD package, rated for 4 A average forward current and 200 V repetitive peak reverse voltage, with 25 ns reverse recovery time and 0.89 V max forward voltage at 4 A and 25°C - used in automotive DC-DC converters and switching-mode power supplies.
For engineers reviewing the MUR420HB0G datasheet, MUR420HB0G pinout, MUR420HB0G application, or MUR420HB0G equivalent, key selection criteria include reverse recovery time, thermal resistance (RθJL = 15°C/W), junction temperature range (–55°C to +175°C), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This device employs a single-die, glass-passivated silicon PN junction optimized for high-frequency switching. Its ultra-fast trr of 25 ns enables efficient operation in hard-switched topologies up to several hundred kHz, minimizing switching losses during freewheeling and flyback phases.
The DO-201AD package provides robust thermal performance (RθJA = 28°C/W) and mechanical reliability, with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance - critical for automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 4 A - supports continuous output current in compact 48V-to-12V DC-DC stages without forced air cooling |
| VRRM | 200 V - withstands transient overvoltage spikes in 24V automotive systems and industrial SMPS |
| trr | 25 ns - reduces turn-off switching loss and EMI generation in high-frequency converters (>200 kHz) |
| VF (max) | 0.89 V @ 4 A, 25°C - lowers conduction loss and improves efficiency vs. standard fast recovery diodes |
| RθJL | 15 °C/W - enables direct PCB copper pour heatsinking for thermal management in space-constrained layouts |
| TJ max | +175°C - supports operation in engine control units and powertrain modules with high ambient temperatures |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; two-terminal device (anode and cathode), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/high-side node in buck/flyback configurations; requires low-inductance layout to minimize voltage overshoot |
| Cathode | Forward current exit / reverse blocking terminal | Marked by colored band; ties to output/low-side node; must be routed away from sensitive analog traces due to fast dV/dt |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, and UHAST - enables use in ASIL-B systems |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in humid or condensing environments (e.g., EV battery management modules) |
| Ultra-fast 25 ns trr | Enables higher switching frequencies without excessive diode-induced losses, supporting smaller magnetics and reduced filter size |
| Halogen-free construction | Complies with IEC 61249-2-21 - meets environmental compliance mandates for Tier 1 automotive suppliers and industrial OEMs |
Applications
| Automotive DC-DC Converter | Industrial Switch-Mode Inverter |
|---|---|
Use Scenario: Step-down conversion from 48V battery rail to 12V auxiliary supply in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck topology, conducting during low-side switch off-time. Use Value: 25 ns trr minimizes reverse recovery charge (Qrr) and associated switching loss, improving system efficiency by ~1.2% at 250 kHz. | Use Scenario: Output rectification in 3-phase IGBT-based motor drive inverters for HVAC compressors. IC Role / Device Role / Timing Role: Snubber and freewheeling path for inductive load current decay during PWM dead-time intervals. Use Value: 175°C max junction temperature allows uninterrupted operation at 105°C ambient with minimal derating, reducing thermal margin overhead. |
| Server PSU Secondary Side | Renewable Energy Charge Controller |
Use Scenario: Secondary-side rectification in 1U high-density AC-DC power supplies for data center servers. IC Role / Device Role / Timing Role: High-efficiency output diode replacing Schottky in cost-sensitive 12V/24V outputs where >100V VR is required. Use Value: 0.89 V VF at 4 A delivers lower conduction loss than 40V Schottkys while supporting 200V surge tolerance - extends MTBF. | Use Scenario: Solar panel MPPT charge controller operating in desert environments with ambient up to 85°C. IC Role / Device Role / Timing Role: Reverse polarity protection and battery charging path isolation diode. Use Value: Glass passivation and –55°C to +175°C TJ range ensure stable leakage current (<5 µA at 25°C, <150 µA at 125°C) across wide thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06S | 600 V VRRM, 4 A IF, trr = 35 ns, TO-220AC package | Higher voltage rating suits 400V bus systems; larger footprint and higher RθJA (40°C/W) | Select when 600 V standoff is required and board space permits TO-220 mounting |
| ON Semi MUR420E | Same 200 V/4 A rating, trr = 25 ns, DO-201AD, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with STTH4L06S and MUR420E, the MUR420HB0G uniquely combines AEC-Q101 qualification, 200 V rating, and DO-201AD form factor - making it optimal for space-constrained, thermally demanding automotive DC-DC modules requiring zero qualification risk.
Availability
MUR420HB0G is available at Aetrix Electronics and suitable for automotive power conversion, industrial switching inverters, and renewable energy charge controllers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MUR420HB0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and computing markets since 1979.
The MUR420HB0G belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-reliability automotive power conversion where fast recovery, thermal resilience, and process consistency are mandatory.
FAQ
What does the 'H' and 'B0G' suffix indicate in MUR420HB0G?
The 'H' denotes AEC-Q101 qualification per automotive reliability standards; 'B0G' specifies green (halogen-free) molding compound and tape-and-reel packaging (1,250 units per reel). This makes MUR420HB0G distinct from non-qualified variants like MUR420G - ensuring compliance for automotive ECUs and ADAS power modules.
Is MUR420HB0G pin-compatible with other DO-201AD rectifiers such as UF4007?
Yes, MUR420HB0G uses the standard DO-201AD axial package with identical mechanical dimensions and lead spacing as UF4007, enabling direct physical replacement. However, its 25 ns trr and 0.89 V VF differ significantly from UF4007's 75 ns trr and 1.7 V VF - so electrical validation is required in high-frequency designs before substitution.
What is the maximum allowable surge current for MUR420HB0G?
MUR420HB0G supports a non-repetitive peak forward surge current (IFSM) of 125 A for an 8.3 ms half-sine wave at 25°C ambient. Derating applies above 25°C; at 100°C ambient, IFSM drops to approximately 75 A - critical for inrush limiting in automotive cold-crank scenarios.
Does MUR420HB0G require a heatsink in typical 4 A operation?
No external heatsink is required for MUR420HB0G at 4 A continuous current if PCB copper area ≥ 250 mm² is provided per lead and ambient temperature remains ≤ 60°C. Its RθJL = 15°C/W allows sufficient heat transfer through leads into copper pours - verified per JEDEC JESD51-3 standards.
How does the glass passivation benefit MUR420HB0G in automotive applications?
Glass passivation on the MUR420HB0G die surface prevents moisture ingress and ion migration under thermal cycling and humidity exposure - directly improving long-term reliability in under-hood environments. This feature is validated per AEC-Q101's H3TRB test (1000 hrs at 85°C/85% RH), distinguishing it from epoxy-passivated alternatives.
MUR420HB0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 890 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 65pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR420HB0G FAQ
1.How can I place an order for MUR420HB0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR420HB0G 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 MUR420HB0G reliable?
The price and inventory of MUR420HB0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR420HB0G is usually 5 days.
3.What payment methods are accepted for MUR420HB0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR420HB0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR420HB0G?
MUR420HB0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR420HB0G 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 MUR420HB0G?
For technical support, including MUR420HB0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR420HB0G requirements.
6.How does Aetrix verify that MUR420HB0G is sourced from the original manufacturer or authorized distributors?
All MUR420HB0G 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 MUR420HB0G meets industry standards.
7.What is the process for return or replacement of MUR420HB0G?
All MUR420HB0G units undergo pre-shipment inspection (PSI). If there is an issue with MUR420HB0G, 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 MUR420HB0G part is unused and in its original packaging.
Return procedure for MUR420HB0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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