Taiwan Semiconductor Corporation HS1JFL
- Part No.:
- HS1JFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
HS1JFL.pdf
- Description:
- DIODE GEN PURP 600V 1A SOD123F
- Quantity:
- Payment:

- Shipping:

Inventory:13,140
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Product details
Overview
HS1JFL from Taiwan Semiconductor is a 1 A, 600 V repetitive peak reverse voltage (VRRM) surface-mount fast recovery rectifier in SOD-123FL package, featuring 1.36 V forward voltage at 1.0 A and 25°C, 75 ns reverse recovery time, and 6 pF junction capacitance - optimized for DC-DC converters and freewheeling paths in high-frequency switching power supplies.
For engineers reviewing the HS1JFL datasheet, HS1JFL pinout, HS1JFL application, or HS1JFL equivalent, key selection criteria include its 600 V VRRM, low 17 °C/W junction-to-lead thermal resistance, J-STD-020 Level 1 moisture sensitivity, and compatibility with automated placement on compact PCBs requiring efficient unidirectional conduction.
Technical Context
The HS1JFL employs a single-die, glass-passivated silicon PN junction optimized for fast recovery (trr ≤ 75 ns) and low forward conduction loss at 1 A. Its 600 V VRRM rating supports medium-voltage SMPS topologies including flyback and forward converters.
Thermal performance is defined by RθJL = 17 °C/W and RθJA = 85 °C/W on a 5 mm × 5 mm Cu pad, enabling reliable operation up to TJ = 150 °C. Reverse leakage remains ≤5 µA at 25°C and ≤150 µA at 125°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification and freewheeling in 400 V AC line-derived or 300–500 V DC bus applications |
| IF | 1 A continuous - suitable for low-to-medium power DC-DC stages up to ~15 W with adequate heatsinking |
| VF @ 1.0 A, 25°C | 1.36 V typical - contributes to <1.4 W conduction loss per device at full load |
| trr | 75 ns max - enables stable operation in 100–500 kHz switching converters without excessive switching loss |
| CJ @ 1 MHz, 4 V | 6 pF - minimizes capacitive coupling and EMI in high-dv/dt node placements |
| RθJL | 17 °C/W - allows direct thermal transfer to PCB copper, reducing need for additional thermal vias |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush and transient overcurrent events in power supply startup |
Pinout & Package
Package: SOD-123FL - low-profile (1.0 mm height), RoHS-compliant, matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.019 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node or ground return) in freewheeling path |
| Cathode | Current exit point during forward conduction; high-impedance terminal under reverse bias | Connected to higher-potential rail (e.g., output capacitor positive or transformer secondary) - marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and humidity resistance without hermetic sealing |
| Fast recovery (trr ≤ 75 ns) | Reduces switching losses and improves efficiency in >100 kHz SMPS designs |
| SOD-123FL low-profile package | Enables ultra-thin power modules and space-constrained board layouts |
| J-STD-020 Level 1 moisture sensitivity | Eliminates bake requirement prior to reflow, simplifying manufacturing flow |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance requirements for consumer and industrial end equipment |
Applications
| DC-DC Converter Secondary Side | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Output rectification in isolated 12 V/1 A flyback converter powering IoT sensor nodes. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC, conducting only during diode-on interval. Use Value: 1.36 V VF limits conduction loss to ~1.36 W, while 75 ns trr prevents reverse recovery shoot-through in synchronous designs. | Use Scenario: Freewheeling path across IGBT in 24 V DC-fed H-bridge motor driver. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when main switch turns off, clamping inductive kickback. Use Value: 600 V VRRM safely blocks back-EMF spikes up to 500 V, and 30 A IFSM handles motor stall transients. |
| AC-DC Adapter Output Stage | Industrial PLC Power Supply Input Rectification |
Use Scenario: Post-regulation rectification in 5 V/2 A buck-derived wall adapter with active PFC front-end. IC Role / Device Role / Timing Role: Final-stage output rectifier delivering clean DC to USB-C PD load, operating continuously at 1 A. Use Value: 17 °C/W RθJL enables direct thermal coupling to PCB ground plane, maintaining TJ < 110°C at full load without heatsink. | Use Scenario: Input bridge leg in 24 V/1 A industrial PLC power module accepting 85–264 V AC input. IC Role / Device Role / Timing Role: One quadrant of full-wave bridge rectifier feeding bulk capacitor, handling 1 A average forward current. Use Value: Glass passivation ensures stable VF and leakage over 10+ years in high-humidity factory environments. |
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 MUR160 | TO-220AC package, 600 V VRRM, 1 A IF, trr = 75 ns, VF = 1.25 V @ 1 A | Through-hole mounting; higher thermal mass but requires PCB real estate and wave soldering | Preferred where legacy through-hole assembly or higher surge robustness is required |
| Vishay VS-1N4937-M3/54 | SOD-123FL package, 600 V VRRM, 1 A IF, trr = 200 ns, VF = 1.3 V @ 1 A | Slower recovery increases switching loss above 100 kHz; identical footprint and moisture level | Acceptable for <100 kHz designs where cost is prioritized over efficiency |
Compared with MUR160 and VS-1N4937-M3/54, the HS1JFL delivers identical voltage/current ratings and SOD-123FL compatibility while offering best-in-class 75 ns trr among surface-mount alternatives - critical for minimizing EMI and improving light-load efficiency in modern high-frequency SMPS.
Availability
HS1JFL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial PLC power supplies requiring stable component supply, consistent parametric performance, and RoHS/halogen-free compliance.
Supply support for HS1JFL 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 power rectifiers, TVS diodes, MOSFETs, and LED drivers.
The HS1JFL belongs to TSC's HS1xFL fast recovery rectifier family, engineered specifically for high-efficiency, surface-mount power conversion in space-constrained consumer, industrial, and computing power supplies.
FAQ
What is the maximum junction temperature rating for the HS1JFL?
The HS1JFL has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows sustained operation in thermally demanding environments such as enclosed industrial power supplies. Derating curves confirm usable current capacity down to 0.6 A at 125°C ambient with standard PCB mounting. The HS1JFL must not exceed this limit to ensure long-term reliability and parametric stability.
Does the HS1JFL have a specified reverse recovery charge (Qrr) value?
No Qrr value is published in the official HS1JFL datasheet (Version B2103). Only reverse recovery time (trr ≤ 75 ns) is specified under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. Designers requiring Qrr for loss modeling should consult TSC application notes or characterize the HS1JFL in-circuit using standard double-pulse test methods. The HS1JFL datasheet does not provide Qrr as a guaranteed parameter.
Is the HS1JFL compatible with lead-free reflow soldering profiles?
Yes, the HS1JFL is fully compatible with standard IPC/JEDEC J-STD-020 lead-free reflow profiles. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its Level 1 moisture sensitivity eliminates pre-bake requirements. Peak reflow temperature up to 260°C is supported, and the SOD-123FL package maintains mechanical integrity throughout the process. The HS1JFL has been qualified for repeated reflow cycles without degradation.
What marking code identifies the HS1JFL on the device body?
The HS1JFL is marked with "HJF" on the cathode band side of the SOD-123FL package, per the ordering information table. This 3-character code uniquely distinguishes it from other variants in the HS1xFL series (e.g., HS1GFL = HGF, HS1MFL = HMF). No date code or factory code is included in the primary marking; those appear separately per packaging documentation. The HS1JFL marking is laser-etched and readable under 20× magnification.
How does the junction capacitance of the HS1JFL affect high-frequency noise performance?
The HS1JFL exhibits 6 pF typical junction capacitance at 1 MHz and 4 V reverse bias, significantly lower than earlier 1 A rectifiers (e.g., 11 pF in HS1GFL). This reduced CJ lowers capacitive coupling into sensitive control nodes, suppresses high-frequency ringing in snubberless designs, and improves EMI filter effectiveness. In 500 kHz flyback converters, the HS1JFL's low CJ directly contributes to cleaner gate-drive waveforms and reduced common-mode noise - a measurable advantage confirmed in TSC reference board measurements.
HS1JFL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 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 @ 600 V
- Capacitance @ Vr, F:
- 6pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1JFL FAQ
1.How can I place an order for HS1JFL through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1JFL 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 HS1JFL reliable?
The price and inventory of HS1JFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1JFL is usually 5 days.
3.What payment methods are accepted for HS1JFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1JFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1JFL?
HS1JFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1JFL 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 HS1JFL?
For technical support, including HS1JFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1JFL requirements.
6.How does Aetrix verify that HS1JFL is sourced from the original manufacturer or authorized distributors?
All HS1JFL 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 HS1JFL meets industry standards.
7.What is the process for return or replacement of HS1JFL?
All HS1JFL units undergo pre-shipment inspection (PSI). If there is an issue with HS1JFL, 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 HS1JFL part is unused and in its original packaging.
Return procedure for HS1JFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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