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Taiwan Semiconductor Corporation HS1MLWH
- Part No.:
- HS1MLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
HS1MLWH.pdf
- Description:
- 75NS, 1A, 1000V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:19,773
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Product details
Overview
HS1MLWH from Taiwan Semiconductor is a 1000V, 1A surface-mount high-efficiency rectifier diode in SOD-123W package, featuring 1.7V max forward voltage at 1A and 75ns reverse recovery time, used for freewheeling and snubber circuits in automotive lighting and DC-DC converters.
For engineers reviewing the HS1MLWH datasheet, HS1MLWH pinout, HS1MLWH application, or HS1MLWH equivalent, key selection criteria include peak reverse voltage rating (1000V), thermal resistance (RθJL = 25°C/W), junction temperature range (–55°C to +175°C), and AEC-Q101 qualification for automotive reliability.
Technical Context
This device is a single-die, glass-passivated silicon rectifier optimized for high-voltage switching applications where low conduction loss and fast recovery are required. Its 1000V VRRM and 75ns trr support efficient energy recycling in inductive loads.
The SOD-123W package enables automated placement and provides UL 94V-0 flammability compliance with matte tin-plated leads. Junction-to-lead thermal resistance of 25°C/W supports sustained 1A operation under constrained board-level cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 1 A - continuous average forward current rating at TA = 75°C |
| trr | 75 ns - reverse recovery time enabling high-frequency switching up to ~1 MHz |
| VF (max) | 1.7 V @ 1A, 25°C - low forward drop reduces conduction loss in power paths |
| RθJL | 25 °C/W - enables direct heat transfer to PCB copper, supporting compact thermal design |
| Junction Temp | –55°C to +175°C - wide operating range suitable for under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SOD-123W - low-profile, surface-mount plastic case with cathode band polarity marking; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or source in rectification path |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential node; blocks 1000V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including HTGB, TC, and HTRB stress tests |
| Glass passivated junction | Enhances long-term reliability and humidity resistance in harsh environments |
| Low profile SOD-123W | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment |
| 1.7V VF max at 1A | Reduces power dissipation by ~17% vs. comparable 2.0V diodes at same current |
| RθJA = 80°C/W | Allows 1A operation with ≤100°C junction rise on standard FR-4 with 1-in² copper pad |
Applications
| Automotive LED Lighting | DC-DC Converter Freewheeling |
|---|---|
Use Scenario: High-brightness LED headlamp modules requiring transient suppression and inductive flyback control. IC Role / Device Role / Timing Role: Freewheeling diode across buck converter inductor to recirculate stored energy during switch-off. Use Value: 1000V VRRM withstands load-dump transients; 75ns trr minimizes switching loss and EMI generation. | Use Scenario: 12V-to-5V/3.3V isolated or non-isolated DC-DC converters in infotainment systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology. Use Value: 1.7V VF limits conduction loss at 1A output; SOD-123W footprint fits tight layout constraints. |
| Snubber Network Protection | Automotive Body Control Module |
Use Scenario: RC snubber across relay contacts or MOSFET drains in HVAC actuators and window lifters. IC Role / Device Role / Timing Role: Voltage clamping diode absorbing inductive kickback energy. Use Value: 30A IFSM handles short-duration surge events; glass passivation ensures stability over 15-year vehicle life. | Use Scenario: Power management in door module ECUs handling motor drivers and sensor interfaces. IC Role / Device Role / Timing Role: Reverse polarity protection and supply rail decoupling diode. Use Value: AEC-Q101 qualification guarantees operation across –40°C to +125°C ambient; 175°C TJMAX supports local heating margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600V VRRM, 1.05V VF typ, 50ns trr, SOD-123 package | Limited to ≤600V systems; lower VF but insufficient for 1000V load-dump immunity | Select when system max reverse voltage ≤600V and lowest conduction loss is prioritized |
| ON Semi MUR1100E | 1000V VRRM, 1.7V VF max, 100ns trr, DO-214AC package | Larger DO-214AC footprint; slower recovery increases switching loss at >100kHz | Choose when board space allows larger package and cost is primary driver over EMI performance |
Compared with STTH1L06S and MUR1100E, HS1MLWH uniquely balances 1000V capability, 75ns recovery, and SOD-123W compactness-making it optimal for space-constrained automotive DC-DC and lighting designs requiring AEC-Q101 validation.
Availability
HS1MLWH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter freewheeling, and snubber network protection requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for HS1MLWH 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 HS1xLWH series was developed specifically for high-reliability automotive power conversion, emphasizing high-voltage robustness, thermal efficiency, and automated assembly compatibility in compact SMD packages.
FAQ
What is the peak repetitive reverse voltage rating of HS1MLWH?
The HS1MLWH has a peak repetitive reverse voltage (VRRM) rating of 1000 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103). It defines the maximum reverse-biased voltage the diode can block repeatedly without breakdown under normal operating conditions. This rating makes HS1MLWH suitable for automotive load-dump protection and high-voltage DC-DC stages.
Is HS1MLWH qualified for automotive applications?
Yes, HS1MLWH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling (TC), and highly accelerated temperature and humidity stress testing (HAST). The qualification applies directly to the HS1MLWH variant, confirming its suitability for under-hood and body-control automotive systems.
What is the forward voltage drop of HS1MLWH at rated current?
The HS1MLWH has a maximum forward voltage (VF) of 1.7 V at 1 A and 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, but the 1.7 V max remains the design-limiting specification for thermal and efficiency calculations.
What package type does HS1MLWH use and what are its key mechanical attributes?
HS1MLWH uses the SOD-123W package, a low-profile surface-mount outline with matte tin-plated leads compliant with J-STD-002 solderability. Key attributes include UL 94V-0 flammability rating, moisture sensitivity level 1 (per J-STD-020), cathode band polarity marking, and approximate weight of 0.016 g. The package supports automated placement and provides RθJL = 25°C/W for effective PCB heat extraction.
How does the reverse recovery time of HS1MLWH compare to lower-voltage variants in the same family?
HS1MLWH has a maximum reverse recovery time (trr) of 75 ns, which is higher than the 50 ns specified for HS1DLWH and HS1GLWH (200V/400V variants). This reflects the trade-off between higher blocking voltage and carrier lifetime optimization. All variants share the same SOD-123W package and AEC-Q101 qualification, but HS1MLWH's 75 ns trr remains suitable for switching frequencies up to ~1 MHz in practical automotive power designs.
HS1MLWH 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):
- 1000 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:
- 1 µA @ 1000 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 175°C
HS1MLWH FAQ
1.How can I place an order for HS1MLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1MLWH 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 HS1MLWH reliable?
The price and inventory of HS1MLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1MLWH is usually 5 days.
3.What payment methods are accepted for HS1MLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1MLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1MLWH?
HS1MLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1MLWH 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 HS1MLWH?
For technical support, including HS1MLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1MLWH requirements.
6.How does Aetrix verify that HS1MLWH is sourced from the original manufacturer or authorized distributors?
All HS1MLWH 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 HS1MLWH meets industry standards.
7.What is the process for return or replacement of HS1MLWH?
All HS1MLWH units undergo pre-shipment inspection (PSI). If there is an issue with HS1MLWH, 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 HS1MLWH part is unused and in its original packaging.
Return procedure for HS1MLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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