My Inquiry
My Account
Taiwan Semiconductor Corporation HS1KLWH
- Part No.:
- HS1KLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
HS1KLWH.pdf
- Description:
- 75NS, 1A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:6,266
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HS1KLWH from Taiwan Semiconductor is a 1 A, 800 V repetitive peak reverse voltage (VRRM) surface-mount silicon rectifier diode in SOD-123W package, featuring 1.7 V max forward voltage at 1 A, 75 ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-efficiency DC-DC converters and car lighting systems.
For engineers reviewing the HS1KLWH datasheet, HS1KLWH pinout, HS1KLWH application, or HS1KLWH equivalent, key selection criteria include its 800 V VRRM, 75 ns trr, SOD-123W thermal performance (RθJA = 80 °C/W), AEC-Q101 compliance, and junction temperature range of –55 °C to +175 °C.
Technical Context
The HS1KLWH is a single-die, glass-passivated, planar epitaxial silicon rectifier optimized for fast switching and low conduction loss in automotive and industrial power conversion. Its 7 pF junction capacitance at 1 MHz and 4.0 V reverse bias supports high-frequency operation in snubber and flyback circuits.
Designed for surface-mount assembly with matte tin-plated leads (J-STD-002 compliant) and moisture sensitivity level 1 (J-STD-020), the device delivers stable performance across –55 °C to +175 °C junction temperature, enabled by low RθJL (25 °C/W) and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines use in 800 V bus or clamp applications. |
| IF | 1 A continuous - Rated average forward current under specified thermal conditions; determines heat sink or PCB copper requirements. |
| VF (max) | 1.7 V @ 1 A, 25 °C - Forward conduction loss directly impacts system efficiency and thermal rise in DC-DC stages. |
| trr | 75 ns - Reverse recovery time governs switching losses and EMI in high-frequency converters and snubbers. |
| CJ | 7 pF @ 1 MHz, 4 V - Low junction capacitance minimizes capacitive coupling and improves high-speed switching fidelity. |
| TJ max | +175 °C - Enables operation in under-hood automotive environments and high-ambient industrial settings. |
| RθJA | 80 °C/W - Thermal resistance from junction to ambient defines required PCB copper area or airflow for thermal management. |
Pinout & Package
Package: SOD-123W - Low-profile, surface-mount plastic package with cathode band marking, UL 94V-0 rated molding compound, and matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must be routed with adequate copper for 1 A continuous current. |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by band on package; connects to higher-potential node; critical for polarity-sensitive snubber and freewheeling paths. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements, enabling use in engine control, lighting, and ADAS subsystems. |
| Glass passivated junction | Enhances long-term reliability and humidity resistance versus epoxy-passivated alternatives in harsh environments. |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow, supporting standard SMT line throughput without process modification. |
| Low profile SOD-123W | 0.016 g weight and compact footprint reduce board space and mechanical stress in vibration-prone automotive modules. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment. |
Applications
| Automotive LED Headlamp Driver | Industrial DC-DC Converter Snubber |
|---|---|
Use Scenario: High-brightness LED headlamps requiring precise current regulation and transient suppression during load dump events. IC Role / Device Role / Timing Role: Freewheeling diode in buck/boost controller output stage, clamping inductive kickback and maintaining current continuity. Use Value: 800 V VRRM withstands ISO 7637-2 load dump spikes; 75 ns trr minimizes switching loss and EMI in 200–500 kHz PWM drivers. | Use Scenario: Isolated flyback or forward converter in programmable logic controller (PLC) power supplies operating at elevated ambient temperatures. IC Role / Device Role / Timing Role: Snubber diode absorbing leakage inductance energy across primary-side MOSFETs during turn-off. Use Value: 175 °C TJ max enables reliable operation at 105 °C board ambient; 7 pF CJ reduces capacitive ringing in high-dV/dt snubber networks. |
| On-Board Charger (OBC) Auxiliary Supply | EV Battery Management System (BMS) Isolation Diode |
Use Scenario: Auxiliary 12 V supply derived from high-voltage battery via isolated DC-DC, powering gate drivers and MCU peripherals. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant converter stage. Use Value: 1.7 V VF max balances conduction loss and thermal margin at 1 A; AEC-Q101 qualification ensures functional safety alignment. | Use Scenario: Voltage isolation and fault-current blocking between BMS cell monitoring ICs and high-side sensing circuits. IC Role / Device Role / Timing Role: Unidirectional isolation diode preventing backfeed into sensitive analog measurement paths during fault conditions. Use Value: Glass passivation and 1 µA IR @ 25 °C ensure stable leakage behavior over 15+ year vehicle lifetime; SOD-123W allows automated placement in dense BMS PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EWH08-M3/5AT | Same SOD-123W package, 800 V VRRM, but 1.15 V VF typ @ 1 A and 50 ns trr; not AEC-Q101 qualified. | Lower VF and faster trr suit high-efficiency, high-frequency SMPS; lacks automotive qualification. | Select when AEC-Q101 is not required and lower conduction/switching loss is prioritized. |
| ON Semiconductor MUR1080S | SOD-123W, 800 V VRRM, 1.7 V VF max, but 100 ns trr and no AEC-Q101 certification. | Higher trr increases switching loss in >200 kHz designs; suitable for cost-sensitive industrial converters. | Choose for non-automotive applications where thermal margin exists and qualification is not mandated. |
Compared with VS-1EWH08-M3/5AT and MUR1080S, the HS1KLWH uniquely combines AEC-Q101 qualification, 75 ns trr, and 800 V rating in SOD-123W-making it the only option qualified for automotive front-end power stages where reliability and standardized validation are mandatory.
Availability
HS1KLWH is available at Aetrix Electronics and suitable for automotive LED lighting, industrial DC-DC converters, and EV on-board charger auxiliary supplies requiring stable component supply, AEC-Q101 compliance, and long-lifecycle support.
Supply support for HS1KLWH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and automotive qualification capabilities.
The HS1KLWH belongs to TSC's HS1xLWH high-voltage rectifier family, engineered specifically for AEC-Q101-compliant automotive power conversion and industrial snubber applications demanding robust thermal performance and high-reliability packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS1KLWH?
The HS1KLWH has a VRRM of 800 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103). This rating defines the highest reverse voltage the diode can block repeatedly without breakdown and is critical for selecting appropriate clamping margins in automotive load-dump and industrial surge protection circuits. The HS1KLWH is part of a series spanning 200 V to 1000 V, with "K" explicitly denoting the 800 V grade.
Is HS1KLWH qualified for automotive applications?
Yes, HS1KLWH is AEC-Q101 qualified, as stated in the FEATURES section of the official datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. The HS1KLWH is therefore approved for use in automotive powertrain, body electronics, and lighting systems where component reliability under extended temperature and vibration conditions is mandatory.
What is the forward voltage (VF) specification for HS1KLWH at 1 A?
The HS1KLWH has a maximum forward voltage 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 the worst-case conduction loss used for thermal design. At higher junction temperatures (e.g., 125 °C), VF decreases slightly, but system-level derating must account for the 1.7 V max at nominal conditions to ensure safe thermal margin in the HS1KLWH application.
What package type does HS1KLWH use, and what are its key mechanical attributes?
HS1KLWH 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, polarity indicated by cathode band, 0.016 g typical weight, and JEDEC-compliant pad layout. The SOD-123W footprint enables high-density placement in automotive modules and supports automated pick-and-place without special tooling.
How does the reverse recovery time (trr) of HS1KLWH compare to other variants in the HS1xLWH family?
The HS1KLWH has a maximum reverse recovery time of 75 ns, matching HS1JLWH and HS1MLWH but slower than HS1DLWH and HS1GLWH (50 ns). This difference reflects trade-offs between voltage rating and switching speed: higher-voltage variants (J/K/M) use wider depletion regions, increasing minority carrier lifetime and trr. For HS1KLWH applications above 200 kHz, this 75 ns trr must be factored into total switching loss calculations alongside its 1.7 V VF.
HS1KLWH 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):
- 800 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 @ 800 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
HS1KLWH FAQ
1.How can I place an order for HS1KLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1KLWH 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 HS1KLWH reliable?
The price and inventory of HS1KLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1KLWH is usually 5 days.
3.What payment methods are accepted for HS1KLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1KLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1KLWH?
HS1KLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1KLWH 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 HS1KLWH?
For technical support, including HS1KLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1KLWH requirements.
6.How does Aetrix verify that HS1KLWH is sourced from the original manufacturer or authorized distributors?
All HS1KLWH 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 HS1KLWH meets industry standards.
7.What is the process for return or replacement of HS1KLWH?
All HS1KLWH units undergo pre-shipment inspection (PSI). If there is an issue with HS1KLWH, 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 HS1KLWH part is unused and in its original packaging.
Return procedure for HS1KLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HS1KLWH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
