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Taiwan Semiconductor Corporation RS1GLWH
- Part No.:
- RS1GLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
RS1GLWH.pdf
- Description:
- 150NS, 1A, 400V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:19,700
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Product details
Overview
RS1GLWH from Taiwan Semiconductor is a 1A, 400V fast recovery surface-mount rectifier diode in SOD-123W package, featuring glass-passivated junction, AEC-Q101 qualification, and 150 ns reverse recovery time. It delivers low forward voltage (max 1.3 V at 1 A), low leakage (5 µA @ 25°C), and operates up to 175°C junction temperature - ideal for automotive DC-DC converters and LED lighting snubbers.
For engineers reviewing the RS1GLWH datasheet, RS1GLWH pinout, RS1GLWH application, or RS1GLWH equivalent, key selection criteria include its 400V VRRM, 30A IFSM, JESD201 Class 2 whisker resistance, moisture sensitivity level 1, and RoHS/halogen-free compliance per IEC 61249-2-21.
Technical Context
The RS1GLWH is a single-die, unidirectional fast recovery rectifier optimized for high-efficiency switching applications. Its 150 ns trr enables reduced switching losses in 100–500 kHz DC-DC topologies, while the glass-passivated junction ensures stable performance under thermal cycling and humidity stress.
Designed for automotive-grade reliability, it meets AEC-Q101 requirements including temperature cycling, high-temperature operating life, and unbiased HAST. The SOD-123W package supports automated placement and provides 25°C/W junction-to-lead thermal resistance for effective power dissipation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse voltage; defines safe blocking capability in 400 V rail systems |
| IF | 1 A continuous - rated average forward current at TL = 75°C; supports sustained conduction in low-power SMPS |
| IFSM | 30 A - peak non-repetitive surge current (8.3 ms half-sine); handles inrush and transient overloads |
| trr | 150 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient operation in medium-frequency converters |
| VF | ≤1.3 V at IF = 1 A, TJ = 25°C - low conduction loss improves system efficiency and reduces thermal load |
| RθJL | 25 °C/W - junction-to-lead thermal resistance; allows direct PCB copper pour heat sinking without heatsink |
| TJ max | +175 °C - extended junction temperature rating supports under-hood automotive environments |
Pinout & Package
Package: SOD-123W - low-profile, surface-mount plastic case with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Weight: 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; accepts 1 A continuous forward current |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; withstands 400 V reverse bias; carries return current in rectification path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTOL, and mechanical shock per JESD47 |
| Glass-passivated junction | Enhances long-term reliability in humid environments and prevents corrosion-induced parameter drift |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly processes |
| Low profile SOD-123W | Height ≤ 1.1 mm; enables ultra-thin designs in space-constrained automotive modules |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for safer end-of-life processing |
Applications
| Automotive DC-DC Converters | LED Headlight Drivers |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery automotive systems powering infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: 150 ns trr minimizes switching loss during high-frequency operation; 175°C rating ensures stability near engine bay heat sources. | Use Scenario: Constant-current regulation and overvoltage protection in adaptive LED headlight modules. IC Role / Device Role / Timing Role: Snubber diode across MOSFET switches to clamp inductive kickback. Use Value: 400 V VRRM safely absorbs transients up to 350 V; low VF reduces power dissipation in thermally dense lamp housings. |
| Industrial Power Supplies | Consumer AC-DC Adapters |
Use Scenario: Secondary-side rectification in isolated 5–24 V output supplies for PLC I/O modules and sensors. IC Role / Device Role / Timing Role: Fast recovery rectifier replacing slower general-purpose diodes to improve efficiency. Use Value: 25°C/W RθJL enables direct thermal coupling to PCB copper, eliminating need for thermal vias in cost-sensitive designs. | Use Scenario: Output rectification in compact wall adapters for smart home devices and USB-PD accessories. IC Role / Device Role / Timing Role: Low-loss freewheeling path in discontinuous conduction mode (DCM) flyback converters. Use Value: Moisture sensitivity level 1 and halogen-free construction meet global safety and environmental compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR140SFT1G | Same SOD-123 package, 400 V VRRM, but trr = 50 ns (faster), VF = 1.25 V (slightly lower) | Better suited for >1 MHz switching; higher cost and tighter tolerance control | Select when ultra-fast recovery is required and layout allows tighter thermal management |
| Vishay VS-1N4937-M3/54 | SOD-123W package, 400 V VRRM, but trr = 200 ns (slower), VF = 1.35 V (higher), no AEC-Q101 qualification | General-purpose industrial use only; not validated for automotive temperature cycling or humidity stress | Select for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with MUR140SFT1G and VS-1N4937-M3/54, the RS1GLWH offers balanced performance: AEC-Q101 qualification and 150 ns trr make it optimal for automotive-grade 100–300 kHz converters, while its 1.3 V VF and 25°C/W RθJL support robust thermal design without premium pricing.
Availability
RS1GLWH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED lighting drivers, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for RS1GLWH 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 consumer markets since 1979.
The RS1GLWH belongs to TSC's AEC-Q101-qualified fast recovery rectifier family, engineered specifically for high-reliability automotive power conversion where thermal robustness, fast switching, and process consistency are critical.
FAQ
What is the maximum junction temperature rating for RS1GLWH?
The RS1GLWH has a maximum junction temperature (TJ) rating of +175°C, verified per AEC-Q101 test conditions. This allows reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the datasheet specify allowable forward current reduction above 75°C lead temperature. The RS1GLWH maintains stable electrical parameters across its full –55°C to +175°C operating range.
Is RS1GLWH suitable for automotive applications?
Yes, RS1GLWH is AEC-Q101 qualified and tested for temperature cycling, high-temperature operating life, and unbiased HAST. Its glass-passivated junction, moisture sensitivity level 1, and halogen-free construction meet automotive manufacturing and reliability requirements. The RS1GLWH is widely deployed in automotive DC-DC converters, LED lighting, and body control modules where robustness under thermal and humidity stress is essential.
What does the 'G' in RS1GLWH indicate?
The 'G' in RS1GLWH denotes the 400 V repetitive peak reverse voltage (VRRM) rating within the RS1xLWH family. Per the ordering table, RS1DLWH = 200 V, RS1GLWH = 400 V, RS1JLWH = 600 V, RS1KLWH = 800 V, and RS1MLWH = 1000 V. The 'LWH' suffix indicates SOD-123W packaging and tape-and-reel delivery (10,000 units per reel). The RS1GLWH marking code on the device is RGLW.
How does RS1GLWH compare to general-purpose rectifiers like 1N4007?
RS1GLWH is a fast recovery rectifier with 150 ns trr, whereas 1N4007 has ~30 µs recovery - over 200× slower. RS1GLWH's 1.3 V VF and 400 V VRRM are optimized for switching power supplies; 1N4007's 1.1 V VF is rated at 1 A but degrades rapidly above 100 kHz. RS1GLWH also features AEC-Q101 qualification, SOD-123W surface-mount compatibility, and automotive-grade reliability - none of which apply to 1N4007.
What is the thermal resistance from junction to ambient (RθJA) for RS1GLWH?
The RS1GLWH has a typical junction-to-ambient thermal resistance (RθJA) of 80°C/W under standard JEDEC test conditions (single-layer 1 in² copper pad). However, its junction-to-lead resistance (RθJL) is 25°C/W - meaning thermal performance improves significantly when leads are soldered to large copper pours or internal layers. For accurate thermal modeling, use the RθJL value with measured lead temperature, as specified in the RS1GLWH datasheet.
RS1GLWH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 175°C
RS1GLWH FAQ
1.How can I place an order for RS1GLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1GLWH 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 RS1GLWH reliable?
The price and inventory of RS1GLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GLWH is usually 5 days.
3.What payment methods are accepted for RS1GLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1GLWH?
RS1GLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1GLWH 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 RS1GLWH?
For technical support, including RS1GLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GLWH requirements.
6.How does Aetrix verify that RS1GLWH is sourced from the original manufacturer or authorized distributors?
All RS1GLWH 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 RS1GLWH meets industry standards.
7.What is the process for return or replacement of RS1GLWH?
All RS1GLWH units undergo pre-shipment inspection (PSI). If there is an issue with RS1GLWH, 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 RS1GLWH part is unused and in its original packaging.
Return procedure for RS1GLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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