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Taiwan Semiconductor Corporation HS1DLH
- Part No.:
- HS1DLH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
HS1DLH.pdf
- Description:
- 50NS, 1A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:9,452
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Product details
Overview
HS1DLH from Taiwan Semiconductor is a 1 A, 200 V glass-passivated surface-mount rectifier diode in Sub SMA package, featuring 50 ns reverse recovery time, 0.95 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in DC-DC converters and car lighting systems.
For engineers reviewing the HS1DLH datasheet, HS1DLH pinout, HS1DLH application, or HS1DLH equivalent, key selection criteria include repetitive peak reverse voltage (200 V), junction-to-ambient thermal resistance (100 °C/W), moisture sensitivity level (MSL 1), and compliance with JESD201 Class 2 whisker testing.
Technical Context
The HS1DLH is a single-die, standard recovery silicon rectifier optimized for high-efficiency switching applications. Its glass-passivated junction ensures stable performance under thermal cycling and humidity exposure, while the Sub SMA package supports automated placement and meets UL 94V-0 flammability requirements.
Designed for operation across -55 °C to +150 °C junction temperature range, it delivers low power loss via 0.95 V VF at 1 A and maintains leakage current ≤5 µA at 25 °C - critical for maintaining efficiency in automotive snubber circuits and DC-DC flyback stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage the device blocks without breakdown; defines safe operating range in 24 V/48 V automotive bus clamping |
| IF | 1 A continuous - rated average forward current; supports sustained conduction in low-power DC-DC output stages |
| IFSM | 30 A (8.3 ms) - surge capability enables robustness against inductive kickback in relay or solenoid drive circuits |
| VF @ 1 A | 0.95 V - low forward drop reduces conduction loss and thermal stress in compact layouts |
| trr | 50 ns - fast recovery minimizes switching losses and EMI in medium-frequency (<100 kHz) converter topologies |
| RθJA | 100 °C/W - thermal resistance determines required PCB copper area for junction temperature control at full load |
| MSL | Level 1 - allows unlimited floor life and reflow without baking; simplifies SMT manufacturing flow |
Pinout & Package
Package: Sub SMA - surface-mount, low-profile (2.7 mm height), matte tin-plated leads, cathode indicated by band. Meets J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit (e.g., switch node in buck converter); polarity must align with layout marking |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail (e.g., output capacitor positive); defines direction of freewheeling path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - enables use in under-hood and lighting modules without additional qualification |
| Glass-passivated junction | Hermetic protection against moisture and contaminants - extends operational life in humid or chemically aggressive environments |
| Low profile Sub SMA | 2.7 mm max height - fits space-constrained automotive PCBs and allows stacking with adjacent components |
| Junction capacitance = 20 pF | Minimizes capacitive coupling in high-dv/dt snubber networks - improves noise immunity in LED driver switching nodes |
Applications
| DC-DC Converter Output Stage | Automotive LED Lighting |
|---|---|
Use Scenario: Used as output rectifier in non-synchronous buck converters powering infotainment displays or ADAS sensors. IC Role / Device Role / Timing Role: Freewheeling diode providing current path during high-side switch off-time; defines minimum on-time and ripple behavior. Use Value: 0.95 V VF and 50 ns trr reduce conduction and switching losses, improving efficiency >88% at 1 A load. | Use Scenario: Mounted on headlamp control boards to clamp inductive transients from PWM-driven LED strings. IC Role / Device Role / Timing Role: Snubber diode absorbing energy from LED driver inductors during turn-off transitions. Use Value: 200 V VRRM and 30 A IFSM withstand repeated 40 V–60 V transients common in 12 V automotive systems. |
| Automotive Body Control Module | Industrial Relay Driver |
Use Scenario: Integrated into window lift or mirror adjustment circuits where brushed DC motors generate back-EMF. IC Role / Device Role / Timing Role: Freewheeling path for motor coil current decay; prevents voltage spikes from damaging MCU GPIO or H-bridge drivers. Use Value: AEC-Q101 qualification and -55 °C to +150 °C TJ range ensure reliable operation across vehicle cabin temperature extremes. | Use Scenario: Placed across relay coils in factory automation PLC I/O modules to suppress turn-off arcing. IC Role / Device Role / Timing Role: Clamp diode limiting reverse voltage spike to ≤200 V during coil de-energization. Use Value: 100 °C/W RθJA allows direct mounting on FR-4 without heatsink, reducing BOM count in space-limited DIN-rail enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02FL | Same 200 V VRRM, 1 A IF, but TO-277 package (higher RθJA ≈ 125 °C/W); VF = 0.92 V typ | Requires larger footprint and different thermal pad design; not MSL 1 rated | Prefer when higher surge margin needed (IFSM = 50 A), but requires requalification for automotive MSL compliance |
| ON Semi MUR120RLG | 200 V VRRM, 1 A IF, 50 ns trr, but SMA package (not Sub SMA); VF = 0.93 V; RoHS/halogen-free compliant | Slightly taller (3.0 mm vs. 2.7 mm); same MSL 1, but no AEC-Q101 documentation publicly available | Acceptable for industrial DC-DC where AEC-Q101 is not mandated; verify qualification status before automotive release |
Compared with STTH1R02FL and MUR120RLG, the HS1DLH uniquely combines AEC-Q101 qualification, Sub SMA low-profile packaging, and MSL 1 handling - making it the only option qualified out-of-box for volume automotive production without derating or process adaptation.
Availability
HS1DLH is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED lighting, and industrial relay driver circuits requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for HS1DLH 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 global automotive, industrial, and consumer markets since 1979.
The HS1DLH belongs to TSC's HS1xLH high-efficiency rectifier family, engineered specifically for AEC-Q101-compliant automotive power conversion and transient suppression - emphasizing reliability, thermal stability, and SMT manufacturability.
FAQ
What is the maximum junction temperature rating for HS1DLH?
The HS1DLH has a maximum junction temperature (TJ MAX) of +150 °C, verified per absolute maximum ratings in the official TSC datasheet. This rating enables operation in under-hood automotive environments and high-ambient industrial settings. Derating curves confirm usable current capacity down to 0.5 A at 125 °C ambient with standard PCB copper. The HS1DLH must be mounted on thermally adequate pads to maintain this limit.
Is HS1DLH pin-compatible with other devices in the HS1xLH series?
Yes - all HS1xLH variants including HS1ALH, HS1BLH, HS1DLH, and up to HS1MLH share identical Sub SMA package dimensions, pinout (anode/cathode), and mechanical footprint. Voltage rating differences (50 V to 1000 V) do not affect physical compatibility. The HS1DLH can be substituted within the same board layout when adjusting for VRRM and VF trade-offs.
Does HS1DLH require pre-baking before reflow soldering?
No - the HS1DLH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be placed directly into reflow without baking. This eliminates moisture-related popcorning risk and simplifies SMT line integration. The Sub SMA molding compound and lead finish are fully qualified for standard lead-free reflow profiles.
What is the reverse leakage current specification for HS1DLH at elevated temperature?
At TJ = 125 °C and rated VR, the HS1DLH exhibits a maximum reverse leakage current (IR) of 150 µA, per electrical specifications in the TSC datasheet. This value is critical for low-power standby circuits where leakage impacts quiescent current. At 25 °C, IR is limited to 5 µA - supporting precision snubber and hold-up timing functions.
Can HS1DLH be used in place of a Schottky diode in 24 V automotive applications?
The HS1DLH is a standard silicon rectifier, not a Schottky - it offers higher VRRM (200 V) and better high-temperature stability than most Schottkys, but with higher VF (0.95 V vs. ~0.45 V) and slower trr (50 ns vs. <10 ns). In 24 V systems where efficiency is secondary to ruggedness and cost, the HS1DLH is viable; however, for high-frequency (>200 kHz) or ultra-low-loss designs, a Schottky remains preferable. Use HS1DLH where reliability and surge tolerance outweigh VF penalty.
HS1DLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1DLH FAQ
1.How can I place an order for HS1DLH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1DLH 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 HS1DLH reliable?
The price and inventory of HS1DLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1DLH is usually 5 days.
3.What payment methods are accepted for HS1DLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1DLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1DLH?
HS1DLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1DLH 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 HS1DLH?
For technical support, including HS1DLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1DLH requirements.
6.How does Aetrix verify that HS1DLH is sourced from the original manufacturer or authorized distributors?
All HS1DLH 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 HS1DLH meets industry standards.
7.What is the process for return or replacement of HS1DLH?
All HS1DLH units undergo pre-shipment inspection (PSI). If there is an issue with HS1DLH, 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 HS1DLH part is unused and in its original packaging.
Return procedure for HS1DLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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