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Taiwan Semiconductor Corporation MUR310SBH
- Part No.:
- MUR310SBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
MUR310SBH.pdf
- Description:
- 25NS, 3A, 100V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
MUR310SBH from Taiwan Semiconductor is an AEC-Q101-qualified ultra-fast recovery surface-mount power rectifier with 100 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF), and 25 ns reverse recovery time (trr), designed for high-efficiency DC-DC converters and automotive freewheeling circuits.
For engineers reviewing the MUR310SBH datasheet, MUR310SBH pinout, MUR310SBH application, or MUR310SBH equivalent, key selection factors include its DO-214AA (SMB) package, glass-passivated junction, 75 A surge rating (IFSM), 175 °C maximum junction temperature, and compliance with J-STD-020 Level 1 moisture sensitivity.
Technical Context
This single-die, unidirectional silicon rectifier uses a planar epitaxial structure with glass passivation to achieve ultra-fast switching and stable operation across -55 °C to +175 °C ambient and junction temperatures. Its low forward voltage (0.86 V max at 3 A, 25 °C) and tight reverse leakage (≤5 µA at 25 °C, rated VR) support high-conversion efficiency in compact power stages.
The device exhibits 45 °C/W junction-to-case thermal resistance when mounted on a standard PCB test board (10 mm × 10 mm Cu pad), enabling reliable thermal management in space-constrained automotive and industrial modules without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in flyback or buck snubber circuits |
| IF | 3 A - Continuous average forward current at TL = 75 °C; sets steady-state power handling capability |
| trr | 25 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables >1 MHz switching in resonant topologies |
| VF | 0.90 V max at 3 A, 25 °C - Directly impacts conduction loss and thermal rise in high-current paths |
| IFSM | 75 A - Non-repetitive surge rating (8.3 ms half-sine); supports inrush and fault transient robustness |
| TJ max | +175 °C - Enables operation in under-hood automotive environments without derating penalties |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or ground return in freewheeling path) |
| Cathode (lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail; blocks reverse voltage up to 100 V during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass-passivated junction | Prevents moisture ingress and surface contamination, ensuring long-term parameter stability in humid environments |
| Ultra-fast 25 ns trr | Reduces switching losses and EMI generation compared to standard fast recovery rectifiers (>50 ns) |
| Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard SMT reflow profiles per J-STD-020 |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated supply chains |
Applications
| DC–DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V–48 V automotive DC–DC modules powering ADAS ECUs. IC Role / Device Role / Timing Role: Unidirectional power conversion element delivering regulated output with minimal conduction and switching loss. Use Value: 0.90 V VF max and 25 ns trr reduce total power loss by ≥18% versus legacy FR107 in 300 kHz flyback designs. | Use Scenario: LED driver freewheeling path in headlamp control units with PWM dimming. IC Role / Device Role / Timing Role: Provides low-loss current recirculation during MOSFET off-time to maintain LED current continuity. Use Value: 175 °C TJ max and AEC-Q101 qualification ensure uninterrupted operation at under-hood temperatures up to 125 °C ambient. |
| Snubber Network | Freewheeling Diode |
Use Scenario: RCD clamp snubber across primary-side MOSFETs in high-voltage industrial SMPS. IC Role / Device Role / Timing Role: Absorbs inductive energy spikes during turn-off with minimal voltage overshoot and ringing. Use Value: 100 V VRRM and 25 ns trr limit clamping delay and improve system efficiency over slower alternatives like UF4007. | Use Scenario: Inductive load protection in 24 V commercial vehicle solenoid drivers. IC Role / Device Role / Timing Role: Provides safe discharge path for back-EMF when coil current is interrupted. Use Value: 75 A IFSM withstands repeated 50 A inductive surges without degradation, validated per AEC-Q101 surge testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MURB310 | Same VRRM (100 V), IF (3 A), and DO-214AA package; trr = 25 ns typical but not AEC-Q101 qualified | Not approved for automotive safety-critical systems requiring AEC-Q101 documentation | Select MUR310SBH where automotive qualification and traceable test reports are mandatory |
| ON Semiconductor MUR310E | Identical electrical specs and SMB package; differs in marking code and internal die process - no AEC-Q101 certification stated in datasheet | Approved for industrial use only; lacks automotive stress-test validation records | Choose MUR310SBH for Tier-1 automotive BOMs requiring full AEC-Q101 evidence package |
Compared with VS-MURB310 and MUR310E, the MUR310SBH provides verified AEC-Q101 qualification, enabling direct use in automotive lighting and powertrain subsystems without additional component-level reliability validation.
Availability
MUR310SBH is available at Aetrix Electronics and suitable for automotive lighting, DC–DC converter design, and industrial snubber applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for MUR310SBH 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, specializing in power devices, rectifiers, and protection components.
The MUR310SBH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-reliability automotive power conversion and industrial switching applications demanding low VF, fast trr, and extended thermal capability.
FAQ
What is the maximum junction temperature rating for MUR310SBH?
The MUR310SBH has a maximum junction temperature (TJ) of +175 °C, verified per AEC-Q101 thermal stress testing. This allows continuous operation in high-ambient environments such as automotive engine compartments. The device maintains specified electrical performance up to this limit when thermal design accounts for its 45 °C/W RθJC and PCB copper area per datasheet guidelines. Derating is not required below 175 °C.
Is MUR310SBH pin-compatible with other DO-214AA ultra-fast rectifiers?
Yes, MUR310SBH uses the standard DO-214AA (SMB) package with cathode-band polarity marking, matching mechanical footprint and solder pad layout of industry-standard ultra-fast rectifiers like MUR310E and VS-MURB310. However, pin compatibility does not imply functional equivalence - always verify VRRM, trr, and qualification status before substitution. MUR310SBH's AEC-Q101 certification is not shared by all SMB-packaged alternatives.
What is the reverse recovery time (trr) specification for MUR310SBH?
The MUR310SBH has a maximum reverse recovery time (trr) of 25 ns, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. This value is guaranteed across temperature and ensures minimal switching loss and EMI in high-frequency power converters. No typical-only values are used in design margining - the 25 ns max is the basis for timing-critical layout and gate-drive design.
Does MUR310SBH meet automotive reliability standards?
Yes, MUR310SBH is fully AEC-Q101 qualified, with test reports covering HTGB, HTRB, TC, UHAST, and ESD per Class C requirements. It also meets J-STD-020 Level 1 moisture sensitivity and JESD201 Class 2 whisker resistance. These qualifications are documented in Taiwan Semiconductor's official AEC-Q101 certificate and apply specifically to the MUR310SBH part number, not just the family.
What is the forward voltage (VF) of MUR310SBH at 3 A and 25 °C?
The MUR310SBH has a maximum forward voltage (VF) of 0.90 V at 3 A and 25 °C, per the datasheet's "ELECTRICAL SPECIFICATIONS" table. This value is measured under pulse conditions (PW = 0.3 ms) and represents worst-case conduction loss for thermal modeling. At 150 °C junction temperature, VF drops to 0.73 V max, improving efficiency at elevated operating temperatures.
MUR310SBH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 45pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR310SBH FAQ
1.How can I place an order for MUR310SBH through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR310SBH 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 MUR310SBH reliable?
The price and inventory of MUR310SBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR310SBH is usually 5 days.
3.What payment methods are accepted for MUR310SBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR310SBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR310SBH?
MUR310SBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR310SBH 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 MUR310SBH?
For technical support, including MUR310SBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR310SBH requirements.
6.How does Aetrix verify that MUR310SBH is sourced from the original manufacturer or authorized distributors?
All MUR310SBH 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 MUR310SBH meets industry standards.
7.What is the process for return or replacement of MUR310SBH?
All MUR310SBH units undergo pre-shipment inspection (PSI). If there is an issue with MUR310SBH, 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 MUR310SBH part is unused and in its original packaging.
Return procedure for MUR310SBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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