My Inquiry
My Account
Taiwan Semiconductor Corporation HS1KFSH
- Part No.:
- HS1KFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
HS1KFSH.pdf
- Description:
- 75NS, 1A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HS1KFSH from Taiwan Semiconductor is a 1 A, 800 V glass-passivated surface-mount fast recovery rectifier in SOD-128 package, featuring 1.49 V forward voltage at 1.0 A and 25°C, 75 ns reverse recovery time, and AEC-Q101 qualification for automotive freewheeling and snubber applications.
For engineers reviewing the HS1KFSH datasheet, HS1KFSH pinout, HS1KFSH application, or HS1KFSH equivalent, key selection criteria include peak reverse voltage rating (800 V), thermal resistance (RθJL = 29 °C/W), junction temperature range (–55 to +150 °C), and low-profile SOD-128 mounting compatibility with automated placement.
Technical Context
The HS1KFSH is a single-die, unidirectional silicon rectifier optimized for high-efficiency DC/DC conversion and transient suppression. Its 800 V VRRM, 75 ns trr, and 8 pF junction capacitance support fast-switching operation in high-frequency power supplies.
Designed with glass-passivated junction and matte tin-plated leads, it meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity-enabling reliable reflow soldering and automotive-grade reliability without derating under 150 °C junction conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input stages up to 560 V RMS in offline AC-DC or 800 V bus protection |
| IF | 1 A continuous - suitable for low-to-medium power DC/DC outputs and auxiliary rails |
| trr | 75 ns - enables switching frequencies up to ~1 MHz with minimal commutation loss |
| VF @ 1 A, 25°C | 1.49 V typical - contributes ≤1.5 W conduction loss at full load, manageable with PCB copper heatsinking |
| RθJL | 29 °C/W - allows direct thermal path to PCB pad, supporting >0.8 A derated current at 85 °C ambient |
| CJ | 8 pF @ 1 MHz, 4 V - reduces capacitive coupling noise in high-dv/dt snubber circuits |
| IR @ 800 V, 125°C | 35 µA max - ensures low leakage in high-temperature automotive engine bay environments |
Pinout & Package
HS1KFSH uses the SOD-128 surface-mount package: low-profile (1.1 mm height), molded UL 94V-0 compound, cathode-indicated by band, matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter or inductive return path) |
| Cathode | Current exit point during forward conduction; polarity-marked terminal | Connected to higher-potential rail (e.g., output capacitor positive or supply rail); defines direction of freewheeling current flow |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements including HTOL, TC, and UHAST |
| Glass-passivated junction | Prevents moisture ingress and metallization corrosion, enabling stable long-term performance in humid environments |
| Low-profile SOD-128 | 1.1 mm max height allows integration into space-constrained modules such as LED drivers and ECU power stages |
| Junction-to-lead thermal resistance | 29 °C/W enables efficient heat transfer directly to PCB copper, reducing need for external heatsinks |
| Moisture sensitivity level 1 | No baking required before reflow; compatible with standard SMT assembly lines without special handling |
Applications
| Automotive Power Supplies | Industrial DC/DC Converters |
|---|---|
Use Scenario: 12 V–48 V battery-fed DC/DC converters in ADAS ECUs and body control modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck secondary side or asynchronous flyback output stage. Use Value: 800 V rating accommodates load dump transients; AEC-Q101 compliance ensures functional safety alignment. | Use Scenario: Isolated 24 V input to 5 V/3.3 V regulation in PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter topologies operating at 200–500 kHz. Use Value: 75 ns trr minimizes reverse recovery loss; 29 °C/W RθJL sustains 1 A output with minimal board area. |
| Snubber Networks | LED Driver Secondary Rectification |
Use Scenario: RCD clamp snubbers across MOSFETs in motor drive inverters and industrial SMPS. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive turn-off energy. Use Value: Low CJ (8 pF) limits capacitive current spike; 1.49 V VF balances conduction vs. switching loss trade-off. | Use Scenario: Constant-current LED string supplies in streetlight and architectural lighting systems. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback delivering 350 mA–1 A at 24–48 V. Use Value: Glass passivation ensures reliability under thermal cycling; SOD-128 footprint simplifies layout in thermally dense LED modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R08 | Same 1 A / 800 V rating; TO-277 package (higher RθJA = 70 °C/W); VF = 1.55 V @ 1 A | Requires larger PCB footprint and additional thermal relief; less suitable for ultra-thin modules | Preferred where legacy TO-277 mounting exists or higher surge current (IFSM = 50 A) is critical |
| ES1J-M3/84A | SOD-123 package (smaller, 0.9 mm height); VRRM = 600 V; trr = 35 ns; VF = 1.7 V @ 1 A | Limited to ≤420 V RMS inputs; faster but higher conduction loss; lower thermal mass | Selected when board space is constrained and 600 V rating suffices, e.g., 24 V–48 V telecom supplies |
Compared with STTH1R08 and ES1J-M3/84A, the HS1KFSH delivers optimal balance of 800 V capability, SOD-128 mountability, and 75 ns recovery in automotive and industrial DC/DC-without requiring PCB redesign or sacrificing thermal robustness.
Availability
HS1KFSH is available at Aetrix Electronics and suitable for automotive power supplies, industrial DC/DC converters, snubber networks, and LED driver secondary rectification requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for HS1KFSH 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 high-reliability rectifiers, TVS devices, and power MOSFETs.
The HS1KFSH belongs to TSC's HS1xFSH fast recovery rectifier family, engineered specifically for automotive-grade surface-mount power conversion where compact size, thermal efficiency, and transient robustness are mandatory.
FAQ
What is the peak repetitive reverse voltage rating of HS1KFSH?
The HS1KFSH has a peak repetitive reverse voltage (VRRM) rating of 800 V, verified per datasheet Table "Absolute Maximum Ratings" and confirmed across all electrical test conditions. This rating defines the maximum allowable reverse-biased voltage the device can block repeatedly without breakdown, making HS1KFSH suitable for 400–560 VRMS AC line applications and 800 V DC bus protection. Derating is not required below 150 °C junction temperature.
Is HS1KFSH qualified for automotive applications?
Yes, HS1KFSH is AEC-Q101 qualified, as explicitly 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-validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS power supplies.
What is the forward voltage drop of HS1KFSH at 1 A and 25°C?
The typical forward voltage (VF) of HS1KFSH is 1.49 V at 1.0 A and 25°C, with a maximum of 1.70 V under the same conditions. This value is measured per pulse test (PW = 0.3 ms) and reflects conduction loss behavior in real-world switching applications. At 125°C junction temperature, VF drops to 1.16 V typical, improving thermal stability in high-ambient designs.
Does HS1KFSH have a specified reverse recovery time?
Yes, HS1KFSH has a maximum reverse recovery time (trr) of 75 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is confirmed in the "Electrical Specifications" table and applies to the entire HS1JFSH–HS1MFSH group. The 75 ns value enables efficient operation in switching power supplies up to ~1 MHz while limiting switching losses and EMI generation.
What package type does HS1KFSH use, and what are its key mechanical features?
HS1KFSH uses the SOD-128 surface-mount package: 1.1 mm maximum height, UL 94V-0 mold compound, matte tin-plated leads compliant with J-STD-002, and cathode polarity indicated by a band. Its thermal design supports RθJL = 29 °C/W on a 5 mm × 5 mm Cu pad, and it meets J-STD-020 Level 1 moisture sensitivity-eliminating bake requirements prior to reflow.
HS1KFSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- 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 @ 1000 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1KFSH FAQ
1.How can I place an order for HS1KFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1KFSH 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 HS1KFSH reliable?
The price and inventory of HS1KFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1KFSH is usually 5 days.
3.What payment methods are accepted for HS1KFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1KFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1KFSH?
HS1KFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1KFSH 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 HS1KFSH?
For technical support, including HS1KFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1KFSH requirements.
6.How does Aetrix verify that HS1KFSH is sourced from the original manufacturer or authorized distributors?
All HS1KFSH 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 HS1KFSH meets industry standards.
7.What is the process for return or replacement of HS1KFSH?
All HS1KFSH units undergo pre-shipment inspection (PSI). If there is an issue with HS1KFSH, 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 HS1KFSH part is unused and in its original packaging.
Return procedure for HS1KFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HS1KFSH 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…
