Taiwan Semiconductor Corporation HS1JAL
- Part No.:
- HS1JAL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS1JAL.pdf
- Description:
- DIODE GEN PURP 600V 1A THIN SMA
- Quantity:
- Payment:

- Shipping:

Inventory:6,135
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Product details
Overview
HS1JAL from Taiwan Semiconductor is a 1 A, 600 V high-efficiency surface-mount silicon rectifier diode in a Thin SMA package, featuring 75 ns reverse recovery time, 13 pF junction capacitance at 1 MHz/4 V, and 1.02 V typical forward voltage at 1 A and 25°C. It serves as a freewheeling or output rectifier in switching-mode power supplies.
For engineers reviewing the HS1JAL datasheet, HS1JAL pinout, HS1JAL application, or HS1JAL equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, thermal resistance (RθJL = 29°C/W), low-profile Thin SMA footprint, and verified performance across -55°C to +150°C junction temperature range.
Technical Context
This device is a single-die, glass-passivated, fast-recovery silicon rectifier optimized for high-frequency switching applications. Its 75 ns reverse recovery time and low junction capacitance (13 pF) support efficient operation in DC-DC converters and inverters up to several hundred kHz.
The HS1JAL operates with a maximum average forward current of 1 A, surge capability of 35 A (8.3 ms) and 90 A (1.0 ms), and is rated for junction temperatures up to +150°C. Its matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or boost output stages |
| IF | 1 A - Continuous average forward current rating at 75°C PCB temperature; determines steady-state power handling |
| trr | 75 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables high-frequency switching with low switching loss |
| CJ | 13 pF - Junction capacitance at 1 MHz, 4 V reverse bias; minimizes capacitive coupling and EMI in high-speed layouts |
| VF @ 1 A, 25°C | 1.02 V typical - Forward voltage drop directly impacts conduction loss and thermal design in compact power stages |
| RθJL | 29 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper pads for passive thermal management |
Pinout & Package
Package: Thin SMA - Low-profile surface-mount package with cathode band marking, UL 94V-0 molding compound, and 5 mm × 5 mm Cu pad thermal test board reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate trace width for 1 A continuous current |
| Cathode | Current exit terminal during forward conduction; marked by band | Connected to output rail or ground return; polarity must be verified before placement to prevent reverse-bias failure |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enhances long-term reliability under humidity and thermal cycling; meets J-STD-020 moisture sensitivity level 1 |
| Fast switching (75 ns trr) | Reduces switching losses in high-frequency SMPS designs, improving efficiency above 100 kHz |
| Low-profile Thin SMA package | Enables ultra-thin power supply designs and compatibility with automated SMT assembly lines |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and environmental regulations for industrial and consumer end equipment |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in isolated 12 V–48 V output buck-derived converters. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles 1 A average current with minimal VF-related loss. Use Value: 1.02 V VF at 1 A reduces conduction loss vs. higher-VF alternatives, lowering thermal load on compact PCBs. | Use Scenario: Output stage rectification in 400 W solar micro-inverters operating at 50–100 kHz switching frequency. IC Role / Device Role / Timing Role: Unidirectional current path converting high-frequency AC to DC; withstands 600 V reverse transients during dead-time. Use Value: 75 ns trr limits reverse recovery charge, minimizing shoot-through risk and EMI generation. |
| Freewheeling Diode | AC–DC Adapter |
Use Scenario: Inductive energy recirculation path across relay coils or solenoid drivers in industrial control modules. IC Role / Device Role / Timing Role: Clamping diode absorbing L·di/dt energy spikes; conducts brief high-current surges (up to 90 A, 1 ms). Use Value: 90 A non-repetitive surge rating ensures robustness against mechanical switching transients without derating. | Use Scenario: Primary-side bridge rectification in universal-input (90–264 VAC) 15 W wall adapters. IC Role / Device Role / Timing Role: Input rectifier converting AC line to pulsating DC; blocks 600 V reverse peaks during negative half-cycles. Use Value: 600 V VRRM provides 2× safety margin over 264 VAC × √2 ≈ 373 V peak, ensuring long-term reliability. |
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 |
|---|---|---|---|
| STTH1R06U | 600 V VRRM, 1 A IF, 60 ns trr, TO-277 package | Higher surge rating (100 A), but larger footprint and no Thin SMA compatibility | Select when lower trr is critical and board space allows TO-277 mounting |
| SB160-E3/54 | 60 V VRRM, 1 A IF, 50 ns trr, SMA package | Not suitable for >100 V reverse applications; only viable in low-voltage DC–DC outputs | Use only in ≤60 V systems where 600 V blocking is unnecessary |
Compared with STTH1R06U and SB160-E3/54, the HS1JAL uniquely balances 600 V blocking, 75 ns recovery, and Thin SMA form factor-making it optimal for space-constrained, medium-voltage SMPS where thermal and layout constraints rule out larger packages or lower-voltage alternatives.
Availability
HS1JAL is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, freewheeling circuits, and AC–DC adapters requiring stable component supply and consistent parametric performance across production batches.
Supply support for HS1JAL 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 AEC-Q200 qualified products.
The HS1JAL belongs to TSC's HS1xAL high-efficiency rectifier family, designed specifically for compact, high-frequency switching power supplies where low profile, fast recovery, and thermal robustness are essential.
FAQ
What is the maximum junction temperature rating for HS1JAL?
The HS1JAL has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version D2103. This rating applies under continuous operation with proper PCB thermal management using a 5 mm × 5 mm copper pad. Exceeding +150°C risks permanent degradation of the glass-passivated junction. Derating curves in the HS1JAL datasheet confirm usable current capacity down to zero amps at +150°C ambient with standard mounting.
Does HS1JAL have a cathode band marking, and how is polarity identified?
Yes, the HS1JAL uses a visible cathode band marking on the device body to indicate polarity, consistent with industry-standard diode orientation. The banded end corresponds to the cathode terminal, which must connect toward the higher-potential node in the circuit (e.g., output rail). This marking is specified in the "Mechanical Data" and "Marking Diagram" sections of the Taiwan Semiconductor HS1JAL datasheet (Version D2103), and aligns with JEDEC standards for Thin SMA packaging.
What is the reverse recovery time (trr) of HS1JAL, and under what test conditions is it measured?
The HS1JAL reverse recovery time is 75 ns, measured under the conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, per the Electrical Specifications table in the Taiwan Semiconductor HS1JAL datasheet (Version D2103). This value is confirmed across the full operating temperature range and distinguishes HS1JAL from lower-voltage variants like HS1DAL (50 ns) and higher-voltage variants like HS1KAL (75 ns, same test condition).
Is HS1JAL RoHS and halogen-free compliant?
Yes, HS1JAL is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor HS1JAL datasheet (Version D2103). The molding compound meets UL 94V-0 flammability rating, and all plating and materials are certified for restricted substance compliance-verified through TSC's internal material declarations and third-party testing reports.
What is the junction capacitance (CJ) of HS1JAL, and at what bias condition is it specified?
The HS1JAL junction capacitance is 13 pF, measured at 1 MHz and 4.0 V reverse bias (VR), as documented in the "Electrical Specifications" table of the Taiwan Semiconductor HS1JAL datasheet (Version D2103). This value is typical and applies at TA = 25°C; CJ decreases with increasing reverse voltage and is critical for high-frequency EMI filtering and snubberless design considerations.
HS1JAL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- 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:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 13pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1JAL FAQ
1.How can I place an order for HS1JAL through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1JAL 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 HS1JAL reliable?
The price and inventory of HS1JAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1JAL is usually 5 days.
3.What payment methods are accepted for HS1JAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1JAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1JAL?
HS1JAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1JAL 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 HS1JAL?
For technical support, including HS1JAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1JAL requirements.
6.How does Aetrix verify that HS1JAL is sourced from the original manufacturer or authorized distributors?
All HS1JAL 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 HS1JAL meets industry standards.
7.What is the process for return or replacement of HS1JAL?
All HS1JAL units undergo pre-shipment inspection (PSI). If there is an issue with HS1JAL, 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 HS1JAL part is unused and in its original packaging.
Return procedure for HS1JAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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