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Taiwan Semiconductor Corporation MUR190
- Part No.:
- MUR190
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
MUR190.pdf
- Description:
- DIODE GEN PURP 900V 1A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,490
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Product details
Overview
MUR190 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 forward voltage at 1 A and 25°C, and 150°C maximum junction temperature. It serves as a high-efficiency freewheeling or output rectifier in DC-DC converters and switching inverters operating under high-voltage, medium-current conditions.
For engineers reviewing the MUR190 datasheet, MUR190 pinout, MUR190 application, or MUR190 equivalent, key selection criteria include its 900 V repetitive peak reverse voltage, low 15 pF junction capacitance, AEC-Q101 qualification option (MUR190H), thermal resistance of 50°C/W, and compatibility with lead-free reflow soldering per J-STD-002.
Technical Context
The MUR190 employs a planar epitaxial silicon structure optimized for ultra-fast soft recovery, minimizing switching losses and EMI in high-frequency SMPS topologies. Its 75 ns trr and 1.50 V VF at 150°C enable stable operation in continuous conduction mode (CCM) flyback and forward converters up to 200 kHz.
Thermal performance is defined by a 50°C/W junction-to-ambient resistance and a -55°C to +150°C operating junction range - narrower than the MUR160's 175°C rating - reflecting voltage-rated trade-offs in carrier lifetime control and doping profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 900 V - supports input rectification in 600 VAC line-fed industrial PSUs without derating |
| IF | 1 A continuous - suitable for output stages delivering ≤12 W at 12 V or ≤24 W at 24 V |
| trr | 75 ns - enables efficient operation in 100–200 kHz switching converters with reduced turn-off loss |
| VF @ 1A, 25°C | 1.70 V - contributes ~1.7 W conduction loss at full load, requiring thermal management above 50% duty cycle |
| CJ | 15 pF - limits capacitive coupling noise in high-dv/dt gate-drive isolation circuits |
| TJ max | 150°C - defines maximum ambient + power dissipation margin before thermal shutdown in sealed enclosures |
| IFSM | 35 A (8.3 ms) - withstands inrush current during cold-start of 24 V/1 A DC-DC modules |
Pinout & Package
Package: DO-204AC (DO-15), axial-lead, epoxy-molded case with cathode band marking. Lead finish: pure tin, J-STD-002 solderable. Weight: 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to output filter capacitor positive rail or load return path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (75 ns) | Reduces switching loss and EMI generation in 100–200 kHz SMPS, enabling smaller EMI filters |
| Low junction capacitance (15 pF) | Minimizes displacement current during high dv/dt transitions, improving gate-drive isolation integrity |
| 150°C max junction temperature | Supports operation in thermally constrained environments such as enclosed LED drivers or motor-control PCBs |
| AEC-Q101 qualified variant available (MUR190H) | Validated for automotive under-hood applications including EPS and body control modules |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with EU and China RoHS directives and eliminates corrosive halogen gas emission during PCB rework |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24 V/1 A flyback converter powering industrial sensors. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 75 ns trr and 1.70 V VF minimize conduction + switching loss, achieving >88% efficiency at full load. | Use Scenario: Freewheeling path across IGBT in 400 V bus H-bridge inverter driving a 200 W BLDC motor. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during IGBT off-time to maintain motor current continuity. Use Value: 900 V VRRM withstands bus transients; 35 A IFSM handles motor stall surges without failure. |
| AC-DC Front-End Rectification | Automotive On-Board Charger Auxiliary Supply |
Use Scenario: Bridge rectifier leg in universal-input (90–264 VAC) 12 V/1 A auxiliary supply for PLC controllers. IC Role / Device Role / Timing Role: High-voltage rectifying element handling peak line voltages up to 370 V. Use Value: 900 V VRRM provides 2.4× safety margin over 370 V peak, eliminating need for snubbers in cost-sensitive designs. | Use Scenario: Output rectifier in 12 V auxiliary DC-DC stage inside OBC module meeting AEC-Q101 requirements. IC Role / Device Role / Timing Role: Isolated secondary-side rectifier delivering power to MCU, CAN transceiver, and gate drivers. Use Value: MUR190H variant ensures qualification for automotive temperature cycling (-40°C to +125°C ambient) and mechanical shock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | Same 1 A / 600 V rating but lower VRRM; 50 ns trr; 1.15 V VF @ 25°C | Not rated for 900 V systems; better suited for 230 VAC input supplies | Select when lower VF and faster trr outweigh voltage margin needs in <600 V designs |
| ES1J | 1 A / 600 V; 35 ns trr; 1.7 V VF; DO-204AL (DO-41) package | Smaller voltage rating and different package footprint; not drop-in compatible | Choose for space-constrained layouts where 600 V suffices and DO-41 mounting is preferred |
Compared with STTH1R06 and ES1J, the MUR190 uniquely delivers 900 V blocking capability in DO-15 while maintaining 75 ns recovery - critical for industrial 3-phase rectifier snubbers and 400 V+ EV auxiliary supplies where voltage margin and thermal robustness are non-negotiable.
Availability
MUR190 is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and automotive auxiliary power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MUR190 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 rectifiers, TVS diodes, and MOSFETs since 1979.
The MUR1xx series was designed specifically for high-efficiency, high-reliability rectification in industrial switching power supplies and automotive subsystems, emphasizing ultra-fast recovery, high-temperature operation, and AEC-Q101 compliance.
FAQ
What is the maximum junction temperature rating for the MUR190?
The MUR190 has a maximum junction temperature (TJ max) of +150°C, as specified in its absolute maximum ratings table. This is lower than the MUR160's 175°C rating due to voltage-grade optimization. Engineers must ensure that power dissipation and ambient conditions keep the MUR190 junction below 150°C during operation - typically requiring heatsinking or airflow above 0.5 A average current in enclosed environments. The MUR190 datasheet confirms this limit applies across all operating conditions.
Is the MUR190 pin-compatible with other DO-204AC rectifiers like the 1N4007?
Yes, the MUR190 uses the standard DO-204AC (DO-15) axial package with anode and cathode leads arranged identically to the 1N4007, allowing direct PCB footprint reuse. However, it is not functionally interchangeable: the 1N4007 has 1000 V VRRM but 2 µs trr and 1.1 V VF, making it unsuitable for high-frequency switching. The MUR190's 75 ns trr and higher VF reflect its ultra-fast design - always verify circuit timing and thermal margins before substitution. The MUR190 datasheet explicitly references DO-204AC mechanical dimensions.
Does the MUR190 support lead-free soldering processes?
Yes, the MUR190 features pure tin-plated leads compliant with J-STD-002 for solderability, and its epoxy molding compound meets UL 94V-0 flammability standards. It is qualified for standard lead-free reflow profiles (peak 260°C, 10 s max), and the MUR190 datasheet confirms compatibility with IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1). No pre-baking is required prior to assembly.
What is the reverse recovery time (trr) of the MUR190, and how is it measured?
The MUR190 has a typical reverse recovery time (trr) of 75 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC test conditions. This value is confirmed in the Electrical Specifications table of the MUR190 datasheet. The measurement reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss in hard-switched topologies. Designers should use this trr value - not generic "fast" or "ultra-fast" labels - when calculating turn-off energy in SPICE simulations or thermal models for the MUR190.
Is there an AEC-Q101 qualified version of the MUR190 available?
Yes, the MUR190H is the AEC-Q101 qualified variant of the MUR190, indicated by the "H" suffix in the ordering code. It undergoes additional stress testing including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST) per AEC-Q101 Rev D. The MUR190H shares identical electrical specs and DO-15 packaging with the standard MUR190 but is certified for automotive under-hood applications such as on-board chargers and body control modules. Full qualification data is documented in TSC's AEC-Q101 report for MUR190H.
MUR190 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR190 FAQ
1.How can I place an order for MUR190 through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR190 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 MUR190 reliable?
The price and inventory of MUR190 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR190 is usually 5 days.
3.What payment methods are accepted for MUR190?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR190 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR190?
MUR190 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR190 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 MUR190?
For technical support, including MUR190 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR190 requirements.
6.How does Aetrix verify that MUR190 is sourced from the original manufacturer or authorized distributors?
All MUR190 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 MUR190 meets industry standards.
7.What is the process for return or replacement of MUR190?
All MUR190 units undergo pre-shipment inspection (PSI). If there is an issue with MUR190, 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 MUR190 part is unused and in its original packaging.
Return procedure for MUR190:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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