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Taiwan Semiconductor Corporation SS1H15LSH
- Part No.:
- SS1H15LSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
SS1H15LSH.pdf
- Description:
- 1A, 150V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:9,750
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Product details
Overview
SS1H15LSH from Taiwan Semiconductor is a 1A, 150V Schottky barrier surface-mount rectifier in SOD-123HE package, featuring ultra-low leakage current (≤1.0 µA at 25°C), low forward voltage (0.85 V max at 1 A, 25°C), and high surge capability (30 A IFSM). It serves as a primary output rectifier in compact DC-DC converters for automotive infotainment power rails.
For engineers reviewing the SS1H15LSH datasheet, SS1H15LSH pinout, SS1H15LSH application, or SS1H15LSH equivalent, key selection criteria include its 150 V VRRM rating, 0.85 V VF ceiling at rated current, 20 °C/W RθJL thermal resistance, and AEC-Q101 qualification for under-hood reliability.
Technical Context
This discrete Schottky diode uses a single-die construction optimized for high-frequency switching applications. Its low VF and ultra-low IR enable reduced conduction loss and minimal reverse recovery charge-critical for >100 kHz SMPS topologies where efficiency and thermal management are constrained.
The SOD-123HE package delivers <0.85 mm profile and J-STD-020 Level 1 moisture sensitivity, supporting high-speed automated placement without baking. Polarity is marked by cathode band; terminals are matte tin-plated per J-STD-002 for reliable solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for output rectification in 12 V–48 V bus-derived supplies |
| IF | 1 A continuous - Rated average forward current at TA = 75°C; defines steady-state power delivery capacity |
| VF (max) | 0.85 V @ 1 A, 25°C - Directly determines conduction loss (0.85 W at full load); lower than silicon diodes by ~0.2–0.3 V |
| IR (max) | 1.0 µA @ 150 V, 25°C - Enables low standby power in always-on systems; remains ≤0.2 mA at 125°C junction |
| IFSM | 30 A @ 8.3 ms - Withstands inrush and transient surges common during cold-start or load dump events |
| RθJL | 20 °C/W - Enables efficient heat transfer to PCB copper; supports >0.7 W dissipation with modest 14 mm² 2-oz copper pad |
| TJ max | +150 °C - Allows operation in under-hood environments up to +125 °C ambient with margin |
Pinout & Package
SOD-123HE is a two-terminal surface-mount package with 0.85 mm maximum height, 2.7 mm × 1.6 mm footprint, and cathode-indicating band. Leads are matte tin-plated per J-STD-002; polarity must be observed during layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper pour for thermal relief |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by band; ties to output rail or ground return; critical for EMI filtering placement relative to input capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade temperature cycling, mechanical shock, and humidity exposure-enables use in ADAS camera modules and body control units |
| Ultra-low leakage current | ≤1.0 µA at 25°C and rated VR ensures <1 mW standby loss in always-on 12 V systems |
| Compact SOD-123HE profile | <0.85 mm height allows stacking under connectors or in tight board-to-board spacing without interference |
| High surge current capability | 30 A non-repetitive peak withstands 10× rated current transients-supports robustness against hot-swap and load-dump stress |
| Moisture sensitivity Level 1 | No bake required prior to reflow; compatible with standard SMT lines without process modification |
Applications
| Automotive Body Control Module (BCM) | USB-C PD Adapter Secondary Side |
|---|---|
Use Scenario: Regulating 5 V/3.3 V auxiliary rails from 12 V battery input in BCMs with space-constrained PCB layouts. IC Role / Device Role / Timing Role: Output rectifier in synchronous-buck or flyback secondary stage; replaces higher-VF silicon diodes to reduce thermal load. Use Value: 0.85 V VF cuts conduction loss by ~35% vs. 1.2 V Si diode at 1 A, lowering die temperature by ~12 °C at 75 °C ambient. | Use Scenario: Isolated DC-DC conversion in compact 65 W USB-C PD adapters requiring high efficiency and low EMI. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in quasi-resonant flyback; leverages fast switching and zero recovery charge. Use Value: Ultra-low IR (<1 µA) minimizes no-load input power, helping meet DOE VI and CoC Tier 2 standby requirements. |
| Industrial IoT Sensor Node Power | Telecom PoE Midspan DC-DC Stage |
Use Scenario: Powering ultra-low-power wireless sensor nodes (e.g., LoRaWAN edge devices) from 24 V industrial bus. IC Role / Device Role / Timing Role: Input protection and reverse-polarity blocking diode upstream of LDO or buck converter. Use Value: 150 V VRRM provides 2× margin over 24 V nominal bus, while 0.021 g weight avoids mechanical stress on flex PCB interconnects. | Use Scenario: Intermediate 12 V rail generation in PoE midspan injectors supplying 48 V to endpoints. IC Role / Device Role / Timing Role: Clamp and snubber diode in active clamp forward or LLC resonant converter secondary. Use Value: 20 °C/W RθJL enables direct thermal coupling to inner-layer ground plane, sustaining 1 A continuous at 85 °C ambient without derating. |
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-1N5819TR-M3/5BT | 1 A, 40 V VRRM; VF = 0.475 V typ @ 1 A; higher IR (10 µA @ 25°C) | Limited to ≤48 V systems; unsuitable for 12 V–48 V wide-input DC-DC stages requiring 150 V margin | Select only when VRRM ≤40 V suffices and lowest VF is prioritized over leakage or automotive qualification |
| ON Semiconductor SB1150T3G | 1 A, 150 V VRRM; VF = 0.89 V max @ 1 A; AEC-Q101 qualified; SOD-123 package (not HE variant) | Slightly taller profile (1.0 mm vs. 0.85 mm); same thermal performance but less suitable for ultra-thin assemblies | Prefer when legacy SOD-123 footprint compatibility is required and 0.15 mm height increase is acceptable |
Compared with VS-1N5819TR-M3/5BT and SB1150T3G, SS1H15LSH uniquely combines 150 V rating, AEC-Q101 compliance, sub-0.85 mm height, and ≤1 µA leakage-making it optimal for space- and reliability-critical 12–48 V automotive and industrial DC-DC designs.
Availability
SS1H15LSH is available at Aetrix Electronics and suitable for automotive body control modules, USB-C PD adapters, and industrial IoT sensor node power supplies requiring stable component supply across multi-year production cycles.
Supply support for SS1H15LSH 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 automotive, industrial, and consumer markets since 1979.
The SS1HxLSH series was designed specifically for high-efficiency, space-constrained switching power supplies in automotive and industrial applications-emphasizing AEC-Q101 reliability, ultra-low profile, and thermally optimized SOD-123HE packaging.
FAQ
What is the maximum junction temperature rating for SS1H15LSH?
The SS1H15LSH has a maximum junction temperature (TJ max) of +150 °C, verified per absolute maximum ratings table in the official TSC datasheet Version B2209. This rating enables operation in under-hood automotive environments up to +125 °C ambient, provided thermal design meets RθJL = 20 °C/W and sufficient PCB copper area is allocated. The SS1H15LSH maintains electrical integrity throughout this range without parameter drift beyond spec limits.
Is SS1H15LSH AEC-Q101 qualified?
Yes, SS1H15LSH is explicitly AEC-Q101 qualified, as confirmed in the FEATURES section of the Taiwan Semiconductor datasheet (Version B2209). This qualification covers temperature cycling, mechanical shock, and humidity testing required for automotive electronics. The SS1H15LSH is suitable for use in body control modules, infotainment systems, and other non-safety-critical automotive applications where component reliability under harsh conditions is mandatory.
What is the forward voltage specification for SS1H15LSH at 1 A and 25°C?
The SS1H15LSH has a maximum forward voltage (VF) of 0.85 V at IF = 1 A and TJ = 25°C, per ELECTRICAL SPECIFICATIONS table in the TSC datasheet. This value is measured under pulse test conditions (PW = 0.3 ms) and represents the worst-case conduction loss at rated current. Typical VF is lower, but system thermal design must accommodate the 0.85 V ceiling to ensure safe junction temperature rise.
Does SS1H15LSH have a moisture sensitivity level rating?
Yes, SS1H15LSH is rated Moisture Sensitivity Level 1 (MSL-1) per J-STD-020, meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to reflow soldering. This MSL-1 rating is documented in the MECHANICAL DATA section of the TSC datasheet and simplifies manufacturing integration for high-volume SMT lines handling SS1H15LSH reels.
What package type does SS1H15LSH use, and what are its key mechanical features?
SS1H15LSH uses the SOD-123HE package: a compact surface-mount case measuring 2.7 mm × 1.6 mm with maximum height of 0.85 mm. Key mechanical features include UL 94V-0 molding compound, matte tin-plated leads compliant with J-STD-002, cathode polarity indicated by band, and 0.021 g unit weight. These attributes support automated placement and high-density PCB layouts where vertical clearance is constrained.
SS1H15LSH 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):
- 150 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 @ 150 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
SS1H15LSH FAQ
1.How can I place an order for SS1H15LSH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS1H15LSH 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 SS1H15LSH reliable?
The price and inventory of SS1H15LSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS1H15LSH is usually 5 days.
3.What payment methods are accepted for SS1H15LSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS1H15LSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS1H15LSH?
SS1H15LSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS1H15LSH 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 SS1H15LSH?
For technical support, including SS1H15LSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS1H15LSH requirements.
6.How does Aetrix verify that SS1H15LSH is sourced from the original manufacturer or authorized distributors?
All SS1H15LSH 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 SS1H15LSH meets industry standards.
7.What is the process for return or replacement of SS1H15LSH?
All SS1H15LSH units undergo pre-shipment inspection (PSI). If there is an issue with SS1H15LSH, 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 SS1H15LSH part is unused and in its original packaging.
Return procedure for SS1H15LSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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