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Taiwan Semiconductor Corporation MUR190AHR0G
- Part No.:
- MUR190AHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
MUR190AHR0G.pdf
- Description:
- DIODE GEN PURP 900V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,447
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Product details
Overview
MUR190AHR0G from Taiwan Semiconductor is a 1 A, 900 V high-efficiency ultrafast 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 AEC-Q101 qualification for automotive-grade reliability-used in DC-DC converters and freewheeling paths in switching inverters.
For engineers reviewing the MUR190AHR0G datasheet, MUR190AHR0G pinout, MUR190AHR0G application, or MUR190AHR0G equivalent, key selection criteria include peak reverse voltage rating (900 V), junction temperature range (–55°C to +150°C), thermal resistance (50°C/W), and AEC-Q101 qualification status for harsh-environment deployment.
Technical Context
This device is a single-die, planar epitaxial silicon rectifier optimized for high-frequency switching applications. Its ultrafast recovery (trr ≤ 75 ns) and low junction capacitance (15 pF at 4 V) minimize switching losses and EMI generation in SMPS topologies.
The MUR190AHR0G operates with a maximum junction temperature of 150°C and supports surge currents up to 35 A (8.3 ms half-sine), enabling robust performance in transient-prone power stages where thermal management and voltage margin are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 900 V - Withstands repetitive reverse voltages up to 900 V without breakdown, suitable for 600–800 V bus designs with safety margin. |
| IF | 1 A continuous - Rated average forward current defines steady-state conduction capability in freewheeling or output rectification paths. |
| trr | 75 ns - Ultrafast recovery reduces turn-off losses and ringing in high-frequency (>100 kHz) switch-mode converters. |
| VF (max) | 1.70 V @ 1 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal load in high-duty-cycle operation. |
| TJ max | +150°C - Maximum allowable junction temperature enables operation in compact, thermally constrained enclosures without derating. |
| RθJA | 50°C/W - Junction-to-ambient thermal resistance determines required heatsinking for 1 A continuous operation at ambient temperatures up to 100°C. |
| CJ | 15 pF @ 1 MHz, 4 V - Low junction capacitance minimizes capacitive coupling and improves high-frequency noise immunity. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band polarity marking. Leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must handle full IF and IFSM stress. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail or higher-potential node; sustains full VRRM during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control, lighting, and ADAS power supplies. |
| Ultrafast recovery (trr ≤ 75 ns) | Enables >200 kHz switching frequencies with reduced diode-induced voltage spikes and EMI. |
| 175°C storage / –55°C to +150°C operating TJ | Supports extended environmental qualification and reliable cold-start or high-ambient industrial use. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment. |
| Low VF at high temperature | 1.50 V max @ 1 A, 150°C ensures stable conduction loss even under thermal stress. |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Inverters |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery systems for ADAS ECUs and infotainment modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology, handling 1 A continuous output current. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure long-term reliability in under-hood thermal environments. | Use Scenario: Freewheeling path in three-phase motor drive inverters operating at 10–50 kHz PWM frequency. IC Role / Device Role / Timing Role: Clamp diode across IGBTs to recirculate inductive energy during turn-off transitions. Use Value: 75 ns trr and low CJ reduce switching losses and voltage overshoot, improving system efficiency and EMC compliance. |
| Server Power Supply ORing | Renewable Energy Microinverters |
Use Scenario: ORing diode in redundant 12 V intermediate bus architecture for telecom/datacom power shelves. IC Role / Device Role / Timing Role: Unidirectional current path preventing backfeed between parallel power modules. Use Value: 900 V VRRM provides margin against bus transients; 1.70 V VF balances conduction loss vs. thermal footprint. | Use Scenario: Output stage rectification in grid-tied solar microinverters converting 40–60 V DC to 230 V AC. IC Role / Device Role / Timing Role: High-voltage output rectifier in high-frequency LLC resonant converter. Use Value: 50°C/W RθJA and 150°C TJ enable natural-convection cooling in sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R09DJF | 900 V VRRM, 1 A IF, trr = 65 ns, TO-220AC package (not DO-15), no AEC-Q101 | Higher thermal mass but requires PCB footprint change; suited for higher-power industrial SMPS | Select when board space allows TO-220 and AEC-Q101 is not required. |
| ON Semiconductor MUR190E | 900 V VRRM, 1 A IF, trr = 75 ns, DO-15, AEC-Q101 qualified, VF = 1.75 V max | Same package and qualification; slightly higher VF increases conduction loss by ~3% at 1 A | Drop-in alternative if MUR190AHR0G is unavailable; verify layout compatibility with MUR190E marking and date code. |
Compared with STTH1R09DJF and MUR190E, the MUR190AHR0G offers identical DO-15 footprint and AEC-Q101 compliance with the lowest VF (1.70 V) among qualified alternatives-critical for thermally constrained automotive modules.
Availability
MUR190AHR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drive inverters, and renewable energy microinverter designs requiring stable component supply, AEC-Q101 validation, and consistent DO-15 packaging.
Supply support for MUR190AHR0G 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 automotive, industrial, and consumer markets since 1979.
The MUR190AHR0G belongs to TSC's MURx ultrafast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial switching applications demanding fast recovery and extended temperature operation.
FAQ
What is the maximum junction temperature rating for MUR190AHR0G?
The MUR190AHR0G has a maximum junction temperature (TJ) rating of +150°C, verified per its absolute maximum ratings table. This allows sustained operation in high-ambient environments such as automotive under-hood locations or enclosed industrial power supplies. The device also supports storage down to –55°C and up to +175°C, though operational limits remain at +150°C. Thermal design must respect the 50°C/W RθJA to avoid exceeding this limit under 1 A load.
Is MUR190AHR0G pin-compatible with other DO-15 rectifiers like MUR160 or MUR180?
Yes, MUR190AHR0G shares the same DO-204AC (DO-15) package and axial lead configuration as MUR160 and MUR180, making it mechanically interchangeable on PCBs designed for that outline. However, electrical differences-including VRRM (900 V vs. 600 V or 800 V), VF (1.70 V vs. 1.25 V or 1.55 V), and trr (75 ns vs. 50 ns or 65 ns)-require circuit-level verification before substitution. The "H" suffix confirms AEC-Q101 qualification, which may not apply to non-H variants.
What does the "R0G" suffix mean in MUR190AHR0G?
The "R0G" suffix in MUR190AHR0G indicates green molding compound (RoHS-compliant, halogen-free per IEC 61249-2-21) and a specific date code format (YWW). It does not affect electrical specifications or qualification status. The "H" denotes AEC-Q101 qualification, while "A" reflects standard assembly grade. All MUR190AHR0G units are supplied in ammo box packaging (1,500 units per box), as confirmed in the ordering information section of the datasheet.
How does the reverse recovery time of MUR190AHR0G impact EMI in high-frequency converters?
The 75 ns reverse recovery time (trr) of MUR190AHR0G directly limits high-frequency ringing and dv/dt-induced EMI during diode turn-off. In converters operating above 100 kHz, slower recovery causes larger current spikes and parasitic oscillation in the switch-node loop. With trr ≤ 75 ns and only 15 pF junction capacitance, MUR190AHR0G suppresses these effects better than standard FRDs, reducing filter component count and aiding CISPR-25 Class 5 compliance in automotive designs.
Can MUR190AHR0G be used in place of a Schottky diode in a 900 V application?
No-MUR190AHR0G is a silicon PN-junction ultrafast rectifier, not a Schottky diode. Schottky diodes cannot achieve 900 V VRRM due to fundamental material limitations; they are typically limited to ≤ 200 V. The MUR190AHR0G fills the high-voltage ultrafast niche where Schottkys are unavailable. While its VF (1.70 V) is higher than Schottky VF (<0.6 V), its 900 V rating, AEC-Q101 qualification, and 150°C operation make it the appropriate solution for high-voltage, high-reliability switching applications.
MUR190AHR0G 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR190AHR0G FAQ
1.How can I place an order for MUR190AHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR190AHR0G 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 MUR190AHR0G reliable?
The price and inventory of MUR190AHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR190AHR0G is usually 5 days.
3.What payment methods are accepted for MUR190AHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR190AHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR190AHR0G?
MUR190AHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR190AHR0G 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 MUR190AHR0G?
For technical support, including MUR190AHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR190AHR0G requirements.
6.How does Aetrix verify that MUR190AHR0G is sourced from the original manufacturer or authorized distributors?
All MUR190AHR0G 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 MUR190AHR0G meets industry standards.
7.What is the process for return or replacement of MUR190AHR0G?
All MUR190AHR0G units undergo pre-shipment inspection (PSI). If there is an issue with MUR190AHR0G, 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 MUR190AHR0G part is unused and in its original packaging.
Return procedure for MUR190AHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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