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Taiwan Semiconductor Corporation SS1H20LSH
- Part No.:
- SS1H20LSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
SS1H20LSH.pdf
- Description:
- 1A, 200V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:16,900
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Product details
Overview
SS1H20LSH from Taiwan Semiconductor is a 1A, 200V Schottky barrier surface-mount rectifier in SOD-123HE package, featuring ultra-low leakage current (1.0 µA at 25°C), forward voltage of 0.85 V at 1 A, and 30 A peak surge capability-designed for high-efficiency DC/DC converters in automotive and industrial power supplies.
For engineers reviewing the SS1H20LSH datasheet, SS1H20LSH pinout, SS1H20LSH application, or SS1H20LSH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 150 °C maximum junction temperature, compact low-profile SOD-123HE footprint, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a single-die Schottky rectifier with metal–semiconductor junction architecture enabling low forward voltage drop and fast switching recovery. Its thermal design supports 20 °C/W junction-to-lead resistance and 72 °C/W junction-to-ambient resistance under standard mounting conditions.
The SS1H20LSH is rated for continuous operation from –55 °C to +150 °C junction temperature, with moisture sensitivity level 1 per J-STD-020 and matte tin-plated leads compliant with J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines upper limit of DC bus or flyback clamp voltage it can safely withstand |
| IF | 1 A - Continuous forward current rating; determines steady-state power dissipation and heatsink sizing in linear conduction mode |
| IFSM | 30 A - Non-repetitive surge current (8.3 ms half-sine); enables robustness against inrush or transient overloads in SMPS startup |
| VF @ 1 A | 0.85 V - Forward voltage drop at rated current; directly impacts conduction loss and efficiency in high-frequency switching topologies |
| IR @ 25°C | 1.0 µA - Reverse leakage current; critical for low-power standby modes and high-impedance bias networks |
| TJ max | +150 °C - Maximum junction temperature; sets thermal derating envelope and PCB copper area requirements |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; informs thermal path design when lead is used as primary heat sink |
Pinout & Package
Package: SOD-123HE - Surface-mount plastic case with cathode band marking, 0.021 g weight, <0.85 mm profile, UL 94V-0 molding compound, and JESD201 Class 2 whisker-resistant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in rectification; polarity must match layout cathode band |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band on package; ties to positive rail or switch node; reverse voltage applied between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power stages per stress test requirements |
| Ultra-low leakage current | 1.0 µA at 25°C ensures minimal standby power loss in always-on circuits and battery-backed systems |
| Compact SOD-123HE profile | Height <0.85 mm enables use in space-constrained modules such as USB-C PD adapters and portable medical chargers |
| High surge current capability | 30 A IFSM supports reliable operation during cold-start surges in industrial DC/DC bricks without derating |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
Applications
| Automotive DC/DC Converters | USB-C Power Delivery Adapters |
|---|---|
Use Scenario: Step-down conversion from 12 V or 48 V vehicle battery to 3.3 V/5 V rails for infotainment and telematics modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: 0.85 V VF minimizes conduction loss at 1 A load; AEC-Q101 qualification ensures reliability across temperature cycling and vibration profiles. | Use Scenario: Secondary-side rectification in compact 65 W USB-C PD wall adapters with high switching frequency (>100 kHz). IC Role / Device Role / Timing Role: High-efficiency freewheeling diode replacing MOSFET synchronous rectifiers where gate drive complexity is undesirable. Use Value: Low profile (<0.85 mm) fits ultra-thin adapter form factors; 1.0 µA IR prevents standby current drain in no-load conditions. |
| Industrial SMPS Auxiliary Supplies | IoT Sensor Node Power Rails |
Use Scenario: Isolated auxiliary supply generating 12 V bias for gate drivers and controllers in motor drives and PLCs. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter secondary winding. Use Value: 200 V VRRM accommodates reflected voltage spikes in 100–240 VAC input designs; 150 °C TJ max supports operation near hot power components. | Use Scenario: Low-power rectification in energy-harvesting or battery-charging circuits for wireless sensor nodes. IC Role / Device Role / Timing Role: Polarity protection and AC-to-DC conversion in piezoelectric or solar micro-harvesters. Use Value: 1.0 µA IR preserves microamp-level quiescent current budgets; SOD-123HE enables automated placement on miniaturized PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1N5819HM3/81 | 1 A, 40 V VRRM; VF = 0.475 V @ 1 A; higher leakage (10 µA @ 25°C) | Limited to ≤40 V systems; unsuitable for 200 V bus or flyback clamp applications | Select only if system reverse voltage remains below 40 V and lowest possible VF is prioritized over leakage or automotive qualification |
| ON Semiconductor SB120 | 1 A, 200 V VRRM; VF = 0.82 V @ 1 A; not AEC-Q101 qualified; RθJA = 125 °C/W | Acceptable for industrial/commercial use but lacks automotive stress validation and has poorer thermal performance | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not required and board-level thermal management is sufficient |
Compared with VS-1N5819HM3/81 and SB120, the SS1H20LSH uniquely combines 200 V blocking, AEC-Q101 qualification, and 1.0 µA leakage-making it the only option among the three suitable for automotive 48 V systems requiring low standby loss and high reliability.
Availability
SS1H20LSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, USB-C power delivery adapters, and industrial SMPS auxiliary supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SS1H20LSH 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 devices, rectifiers, and protection components.
The SS1H20LSH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, low-profile power conversion in automotive and industrial environments where thermal performance and reliability under harsh conditions are critical.
FAQ
What is the maximum junction temperature rating for SS1H20LSH?
The SS1H20LSH has a maximum junction temperature (TJ max) of +150 °C, allowing continuous operation in high-temperature environments such as under-hood automotive electronics or enclosed industrial power supplies. This rating is validated per TSC's thermal testing protocol and supports derating curves up to 150 °C ambient when mounted on standard FR-4 with recommended pad layout.
Is SS1H20LSH AEC-Q101 qualified?
Yes, SS1H20LSH is explicitly AEC-Q101 qualified per the official Taiwan Semiconductor datasheet Version B2209. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-confirming suitability for automotive power electronics applications.
What is the forward voltage drop of SS1H20LSH at 1 A and 25°C?
The SS1H20LSH exhibits a maximum forward voltage (VF) of 0.85 V at 1 A and 25°C junction temperature, measured under pulsed conditions (PW = 0.3 ms). This value is confirmed in the Electrical Specifications table and reflects typical conduction loss in high-frequency switching applications.
Does SS1H20LSH have a defined cathode marking?
Yes, SS1H20LSH uses a cathode band marking on the SOD-123HE package body to indicate the cathode terminal. This band aligns with industry-standard polarity identification and must be matched to PCB silkscreen and layout to ensure correct orientation during automated placement and functional operation.
What packaging format is available for SS1H20LSH?
SS1H20LSH is supplied in tape-and-reel packaging with 10,000 units per reel, compatible with standard SMT pick-and-place equipment. The SOD-123HE package meets J-STD-020 moisture sensitivity level 1, eliminating bake requirements prior to reflow soldering.
SS1H20LSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123H
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HE
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS1H20LSH FAQ
1.How can I place an order for SS1H20LSH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS1H20LSH 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 SS1H20LSH reliable?
The price and inventory of SS1H20LSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS1H20LSH is usually 5 days.
3.What payment methods are accepted for SS1H20LSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS1H20LSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS1H20LSH?
SS1H20LSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS1H20LSH 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 SS1H20LSH?
For technical support, including SS1H20LSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS1H20LSH requirements.
6.How does Aetrix verify that SS1H20LSH is sourced from the original manufacturer or authorized distributors?
All SS1H20LSH 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 SS1H20LSH meets industry standards.
7.What is the process for return or replacement of SS1H20LSH?
All SS1H20LSH units undergo pre-shipment inspection (PSI). If there is an issue with SS1H20LSH, 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 SS1H20LSH part is unused and in its original packaging.
Return procedure for SS1H20LSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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