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Taiwan Semiconductor Corporation HS1KH
- Part No.:
- HS1KH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS1KH.pdf
- Description:
- 75NS, 1A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:14,840
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Product details
Overview
HS1KH from Taiwan Semiconductor is a 800 V, 1 A high-efficiency surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring 75 ns reverse recovery time, 1.7 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability-used in snubber circuits and DC-DC converter freewheeling paths.
For engineers reviewing the HS1KH datasheet, HS1KH pinout, HS1KH application, or HS1KH equivalent, key selection criteria include peak reverse voltage rating (800 V), thermal resistance (RθJL = 15 °C/W), junction capacitance (15 pF), and compliance with JESD201 Class 2 whisker testing and RoHS/Halogen-free requirements.
Technical Context
The HS1KH is a single-die, glass-passivated, fast-recovery rectifier optimized for switching-mode power supplies operating up to 150 °C junction temperature. Its 800 V VRRM and 30 A IFSM support robust surge handling in industrial inverters and lighting ballasts.
Designed with low junction-to-lead thermal resistance (15 °C/W) and moisture sensitivity level 1 per J-STD-020, the device enables high-density automated placement on PCBs with 5 mm × 5 mm copper pads while maintaining stable reverse leakage (< 5 µA at 25 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input stages of 400 V AC-derived SMPS and industrial motor drives without derating |
| IF | 1 A continuous - rated for steady-state conduction in auxiliary power rails and LED driver return paths |
| trr | 75 ns - enables operation at >100 kHz switching frequencies with minimized switching loss |
| VF | 1.7 V @ 1 A, 25 °C - balances conduction loss and thermal rise in compact enclosed designs |
| CJ | 15 pF @ 1 MHz, 4 V - reduces high-frequency noise coupling in EMI-sensitive snubber networks |
| RθJL | 15 °C/W - allows direct heat transfer to PCB copper, simplifying thermal design vs. higher-Rθ alternatives |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, cathode-indicated by molded band; weight ≈ 0.060 g; UL 94V-0 molding compound; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Current exit terminal during forward conduction; marked by band | Connected to higher-potential rail (e.g., output capacitor positive or ground return) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control modules and body electronics |
| Glass passivated junction | Prevents moisture ingress and metallization corrosion, extending lifetime in humid environments |
| Fast switching (75 ns trr) | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency converters |
| J-STD-020 Level 1 MSL | Enables standard reflow assembly without baking or special handling prior to mounting |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
Applications
| DC-DC Converter Freewheeling | Snubber Network |
|---|---|
Use Scenario: Freewheeling path in synchronous buck converters powering FPGA core rails. IC Role / Device Role / Timing Role: Unidirectional current path during low-side FET off-time; clamps inductive kickback. Use Value: 800 V VRRM and 75 ns trr prevent voltage overshoot and reduce switching loss versus slower 600 V alternatives. | Use Scenario: RC snubber across MOSFET drain-source in flyback primary side. IC Role / Device Role / Timing Role: Absorbs turn-off energy and damps ringing via controlled reverse recovery. Use Value: 15 pF junction capacitance and precise 75 ns trr enable predictable snubber tuning without parasitic resonance. |
| Automotive Lighting Ballast | Industrial Inverter Auxiliary Supply |
Use Scenario: Output rectification in LED driver modules for headlamp systems. IC Role / Device Role / Timing Role: High-voltage output stage rectifier handling 400–600 V transient spikes. Use Value: AEC-Q101 qualification and 150 °C TJMAX ensure reliability in sealed, thermally constrained headlamp housings. | Use Scenario: Input rectification for isolated auxiliary supply feeding gate drivers in 3-phase VFDs. IC Role / Device Role / Timing Role: Converts 380 V AC line to DC bus; withstands line surges and harmonics. Use Value: 30 A IFSM and 15 °C/W RθJL sustain repeated 8.3 ms surges without thermal runaway on standard PCB copper. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1N5819HM3/54 | 40 V VRRM, 1 A, Schottky; no AEC-Q101, higher leakage at >100 °C | Not suitable for >100 V reverse blocking; limited to low-voltage DC-DC outputs | Select only if system VR < 30 V and efficiency > thermal stress priority |
| ON Semiconductor MUR180 | 800 V VRRM, 1 A, 75 ns trr, but TO-220AC package (not SMT); no AEC-Q101 | Requires through-hole assembly and heatsinking; unsuitable for space-constrained automotive PCBs | Choose when board-level thermal management permits larger footprint and leaded mounting |
Compared with VS-1N5819HM3/54 and MUR180, the HS1KH uniquely combines 800 V SMT packaging, AEC-Q101 qualification, and 75 ns recovery in a DO-214AC outline-enabling automotive-grade, high-density, high-frequency rectification where leaded or low-voltage alternatives fall short.
Availability
HS1KH is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, snubber networks, and automotive lighting ballasts requiring stable component supply across production lifecycles.
Supply support for HS1KH 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 industrial, automotive, and consumer markets since 1979.
The HS1KH belongs to TSC's HS1xH fast-recovery rectifier family, engineered specifically for high-efficiency, high-reliability switching power conversion in space-constrained and thermally demanding applications.
FAQ
What is the maximum junction temperature rating for HS1KH?
The HS1KH has a maximum junction temperature (TJMAX) of +150 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version B2401. This rating enables reliable operation in under-hood automotive environments and enclosed industrial power supplies. Derating curves confirm 1 A continuous current is maintainable up to 125 °C ambient when mounted on a 5 mm × 5 mm Cu pad. The HS1KH must not exceed 150 °C junction temperature under any operating condition.
Is HS1KH suitable for automotive applications?
Yes, the HS1KH is AEC-Q101 qualified per the manufacturer's documentation, confirming stress-tested reliability for automotive electronic systems. It meets requirements for temperature cycling, humidity bias, and mechanical shock relevant to engine control units, body controllers, and lighting modules. Its DO-214AC package, halogen-free construction, and JESD201 Class 2 whisker resistance further support automotive deployment. HS1KH is explicitly listed in TSC's AEC-Q101 qualified product matrix.
What is the reverse recovery time (trr) of HS1KH and how is it measured?
The HS1KH has a typical reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet. This value reflects performance at 25 °C ambient and is critical for minimizing switching loss in high-frequency converters. The test circuit and waveform definitions are detailed in Figure 10 of the same document.
Does HS1KH have a defined polarity marking, and how is it identified?
Yes, HS1KH uses a molded cathode band on the DO-214AC (SMA) package body to indicate polarity-consistent with JEDEC DO-214AC standards. The band marks the cathode terminal, which must be connected toward the higher-potential node in the circuit. This marking is visible under standard optical inspection and compatible with automated optical inspection (AOI) systems used in SMT lines. No additional silkscreen or laser marking is required.
What is the moisture sensitivity level (MSL) of HS1KH and what does it mean for assembly?
The HS1KH is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and subjected to standard reflow profiles-including Pb-free peak temperatures up to 260 °C-without preconditioning or baking. This eliminates dry-pack requirements and simplifies logistics for high-volume manufacturing. The Level 1 rating is confirmed in the Mechanical Data section of the Taiwan Semiconductor datasheet.
HS1KH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1KH FAQ
1.How can I place an order for HS1KH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1KH 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 HS1KH reliable?
The price and inventory of HS1KH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1KH is usually 5 days.
3.What payment methods are accepted for HS1KH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1KH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1KH?
HS1KH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1KH 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 HS1KH?
For technical support, including HS1KH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1KH requirements.
6.How does Aetrix verify that HS1KH is sourced from the original manufacturer or authorized distributors?
All HS1KH 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 HS1KH meets industry standards.
7.What is the process for return or replacement of HS1KH?
All HS1KH units undergo pre-shipment inspection (PSI). If there is an issue with HS1KH, 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 HS1KH part is unused and in its original packaging.
Return procedure for HS1KH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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