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Taiwan Semiconductor Corporation MUR190A R0G
- Part No.:
- MUR190A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
MUR190A R0G.pdf
- Description:
- DIODE GEN PURP 900V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,837
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Product details
Overview
MUR190A R0G from Taiwan Semiconductor is a 1 A, 900 V ultra-fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 75 ns reverse recovery time, 1.70 V max forward voltage at 1 A and 25°C, and 175°C maximum junction temperature. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the MUR190A R0G datasheet, MUR190A R0G pinout, MUR190A R0G application, or MUR190A R0G equivalent, key selection criteria include peak reverse voltage rating, VF vs. TJ behavior, trr stability across temperature, thermal resistance (RθJA = 50°C/W), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The MUR190A R0G implements a single-die planar epitaxial structure optimized for fast soft recovery, minimizing switching losses and EMI in DC–DC converters and SMPS topologies. Its 900 V VRRM rating supports high-bus industrial and off-line applications where voltage margin is critical.
Thermal performance is defined by a 50°C/W junction-to-ambient resistance under standard PCB mounting conditions, and its pure tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 900 V - Withstands repetitive reverse voltage up to 900 V without breakdown, enabling use in 400–600 V DC bus systems with safety margin. |
| IF | 1 A continuous - Rated average forward current under specified thermal conditions; derates linearly above 75°C ambient. |
| trr | 75 ns - Ultra-fast recovery time measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; reduces switching loss and ringing in high-frequency operation. |
| VF (max) | 1.70 V at 1 A, 25°C - Forward voltage drop directly impacts conduction loss; lower VF improves efficiency in low-voltage output stages. |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance defines required heatsinking or PCB copper area for safe 1 A operation at elevated ambient temperatures. |
| CJ | 15 pF at 1 MHz, VR = 4 V - Low junction capacitance minimizes capacitive coupling and dynamic losses during turn-off transitions. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band polarity marking. Weight: 0.400 g. RoHS-compliant, halogen-free per IEC 61249-2-21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential side of circuit; must withstand surge current (IFSM = 35 A) during startup or fault events. |
| Cathode (lead with band) | Forward current exit / reverse blocking terminal | Connected to higher-potential node; blocks up to 900 V reverse voltage and defines recovery waveform reference. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (trr ≤ 75 ns) | Reduces switching losses and EMI generation in >100 kHz SMPS designs, enabling higher frequency operation without efficiency penalty. |
| 175°C maximum junction temperature | Supports operation in high-ambient environments (e.g., enclosed industrial enclosures or under-hood automotive locations) without thermal derating. |
| AEC-Q101 qualified option (MUR190H variants) | Validated for automotive powertrain and body electronics applications requiring stress-tested reliability and failure mode analysis. |
| Low VF at high temperature (1.50 V max @ 150°C) | Maintains stable conduction loss across wide temperature range, improving system efficiency consistency in thermally variable deployments. |
Applications
| DC–DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48 V outputs at up to 1 A. IC Role / Device Role / Timing Role: Unidirectional current path with minimal conduction and switching loss; operates synchronously with PWM controller timing. Use Value: 75 ns trr and 1.70 V VF enable >92% efficiency at 250 kHz switching, reducing heatsink size and improving power density. | Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or solenoids) in half-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during PWM dead-time; recovery speed prevents shoot-through risk. Use Value: Soft recovery characteristic suppresses voltage spikes and reduces snubber component count, lowering BOM cost and layout complexity. |
| High-Voltage AC–DC Front-End | Industrial Power Supply Input Stage |
Use Scenario: Output rectification in PFC boost stage or post-regulator stage handling ≥600 V DC link voltages. IC Role / Device Role / Timing Role: High-VRRM rectifier sustaining transient overvoltages while maintaining low leakage (≤5 µA @ 25°C). Use Value: 900 V rating provides 50% margin over 600 V nominal bus, eliminating need for series stacking and simplifying layout. | Use Scenario: Primary-side clamp or auxiliary supply rectification in DIN-rail mounted 24/48 V industrial PSUs operating in harsh ambient (−40°C to +85°C). IC Role / Device Role / Timing Role: Reliable conduction under thermal cycling and long-term bias stress; qualified for 10+ year field life. Use Value: 175°C TJ rating and JESD201 Class 2 whisker resistance ensure robustness against solder joint fatigue and intermetallic growth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R09 | 900 V VRRM, 75 ns trr, but VF = 1.85 V max @ 1 A/25°C; RθJA = 60°C/W | Slightly higher conduction loss and thermal resistance; less suitable for compact, high-ambient designs | Acceptable where board space allows larger copper pour or where VF tolerance >1.7 V is acceptable |
| ON Semiconductor MUR190E | Same VRRM/trr/VF specs; DO-15 package; not AEC-Q101 qualified; different marking and date code format | Lacks automotive qualification; identical electrical and thermal performance in commercial/industrial use | Drop-in replacement for non-automotive applications; verify packaging (ammo box vs. tape & reel) matches production line requirements |
Compared with STTH1R09 and MUR190E, the MUR190A R0G offers superior thermal resistance (50 vs. 60°C/W) and AEC-Q101 availability in H-variant versions-critical for automotive subsystems requiring validated reliability, while maintaining identical pinout and footprint compatibility.
Availability
MUR190A R0G is available at Aetrix Electronics and suitable for DC–DC converter output rectification, switching mode inverter freewheeling, and high-voltage AC–DC front-end applications requiring stable component supply, consistent parametric performance, and traceable sourcing.
Supply support for MUR190A R0G 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 high-reliability rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The MUR160–MUR190 family was designed specifically for high-efficiency, high-frequency switching power conversion-emphasizing low VF, fast trr, and extended thermal capability to replace legacy slow rectifiers in next-generation SMPS and inverter designs.
FAQ
What is the maximum junction temperature rating for MUR190A R0G?
The MUR190A R0G has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version L2107). This enables reliable operation in high-ambient environments such as enclosed industrial enclosures or under-hood automotive locations. The device maintains full electrical specifications up to this limit when thermal design ensures actual TJ does not exceed 175°C.
Is MUR190A R0G AEC-Q101 qualified?
No, the MUR190A R0G variant is not AEC-Q101 qualified. However, the MUR190H variant (same die, same package) is explicitly qualified per AEC-Q101. The "A" in MUR190A R0G denotes the standard industrial version; "H" suffix indicates automotive qualification. For automotive applications requiring stress-tested reliability, MUR190H should be selected instead of MUR190A R0G.
What is the reverse recovery time (trr) of MUR190A R0G and how is it tested?
The MUR190A R0G has a maximum reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This test method reflects real-world switching behavior in high-frequency converters and confirms soft recovery characteristics that reduce EMI and voltage overshoot during turn-off transitions.
Does MUR190A R0G have a halogen-free construction?
Yes, the MUR190A R0G uses halogen-free molding compound compliant with IEC 61249-2-21, as stated in the Features section of the official Taiwan Semiconductor datasheet. This supports environmental compliance requirements for RoHS and WEEE directives, and eliminates brominated flame retardants commonly found in legacy epoxy compounds.
What is the forward voltage (VF) of MUR190A R0G at elevated temperature?
At 1 A forward current and 150°C junction temperature, the MUR190A R0G exhibits a maximum forward voltage (VF) of 1.50 V, per the Electrical Specifications table. This represents a reduction from the 25°C value (1.70 V max), confirming stable conduction loss across temperature-critical for predictable thermal management in thermally demanding applications.
MUR190A R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 900 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 900 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR190A R0G FAQ
1.How can I place an order for MUR190A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR190A R0G 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 MUR190A R0G reliable?
The price and inventory of MUR190A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR190A R0G is usually 5 days.
3.What payment methods are accepted for MUR190A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR190A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR190A R0G?
MUR190A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR190A R0G 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 MUR190A R0G?
For technical support, including MUR190A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR190A R0G requirements.
6.How does Aetrix verify that MUR190A R0G is sourced from the original manufacturer or authorized distributors?
All MUR190A R0G 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 MUR190A R0G meets industry standards.
7.What is the process for return or replacement of MUR190A R0G?
All MUR190A R0G units undergo pre-shipment inspection (PSI). If there is an issue with MUR190A R0G, 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 MUR190A R0G part is unused and in its original packaging.
Return procedure for MUR190A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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