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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation SS1H15LS

Name: SS1H15LS
Brand: Taiwan Semiconductor Corporation
SKU: SS1H15LS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SS1H15LS

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123H

Datasheet:: SS1H15LS.pdf

Description:: 1A, 150V, SCHOTTKY RECTIFIER

Quantity:: RFQ Add To RFQ list

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Inventory:29,970

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Product details

Overview

SS1H15LS 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 requiring high efficiency and thermal reliability up to 150°C junction temperature.

For engineers reviewing the SS1H15LS datasheet, SS1H15LS pinout, SS1H15LS application, or SS1H15LS equivalent, key selection criteria include its 150 V VRRM rating, 0.85 V VF max at rated current, 1.0 µA IR at 25°C, SOD-123HE footprint compatibility, and suitability for space-constrained SMPS designs operating at elevated ambient temperatures.

Technical Context

This Schottky rectifier uses a single-die construction optimized for low conduction loss and fast switching recovery. Its 150 V repetitive peak reverse voltage enables use in mid-voltage secondary-side rectification where higher breakdown margin than 100 V devices is required without sacrificing VF performance.

Thermal design is supported by R_θJL = 20 °C/W and R_θJA = 72 °C/W, with moisture sensitivity level 1 (J-STD-020) and matte tin-plated leads compliant with J-STD-002 solderability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	150 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit
IF	1 A continuous - Rated average forward current under specified thermal conditions
VF (max)	0.85 V at 1 A, 25°C - Directly determines conduction power loss (0.85 W per device at full load)
IR (max)	1.0 µA at 25°C, 0.2 mA at 125°C - Low leakage preserves efficiency in standby and high-temp operation
IFSM	30 A, 8.3 ms half-sine - Withstands transient surges common during power-up or fault events
TJ max	150 °C - Enables operation in thermally demanding environments without derating
R_θJL	20 °C/W - Enables efficient heat transfer to PCB copper, critical for high-density layouts

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 resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., transformer secondary center-tap or ground return path)
Cathode	Forward current exit point	Marked by band; connects to output rail or filter capacitor positive terminal

Key Features

Feature	Design Value
Ultra-low forward voltage	0.85 V max at 1 A ensures ≤0.85 W conduction loss, reducing thermal stress in sealed adapters
Low leakage current	1.0 µA at 25°C minimizes standby power loss in energy-sensitive applications like USB PD chargers
High surge robustness	30 A IFSM withstands repetitive inrush events in industrial DC-DC modules without degradation
SOD-123HE compactness	0.85 mm max height and JEDEC-standard footprint enable layout density in portable power supplies
Moisture sensitivity level 1	No bake requirement before reflow - simplifies manufacturing and reduces process risk

Applications

AC-DC Adapters	Industrial DC-DC Converters
Use Scenario: 5–24 V output wall adapters for IoT gateways and smart sensors. IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to regulated DC. Use Value: 0.85 V VF and 1.0 µA IR maintain >89% efficiency at light loads while meeting CoC Tier 2 requirements.	Use Scenario: 12 V/1 A isolated DC-DC modules powering PLC I/O circuits. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in flyback topology. Use Value: 150 V VRRM provides 50% safety margin over 12 V output with reflected transients, improving long-term reliability.
USB-C Power Delivery	Telecom Power Supplies
Use Scenario: Compact 45 W GaN-based USB-C chargers with multi-output rails. IC Role / Device Role / Timing Role: Auxiliary rail rectifier for 5 V/3.3 V logic supply generation. Use Value: SOD-123HE footprint allows dual-device placement on tight 2-layer PCBs without thermal vias.	Use Scenario: -48 V telecom rectifier modules delivering 1 A bias power to optical transceivers. IC Role / Device Role / Timing Role: Input-stage reverse polarity protection and ESD clamp diode. Use Value: 150 V VRRM and 0.2 mA IR at 125°C ensure stable operation in hot chassis environments (>85°C ambient).

AC-DC Adapters

Industrial DC-DC Converters

Use Scenario: 5–24 V output wall adapters for IoT gateways and smart sensors.

IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to regulated DC.

Use Value: 0.85 V VF and 1.0 µA IR maintain >89% efficiency at light loads while meeting CoC Tier 2 requirements.

Use Scenario: 12 V/1 A isolated DC-DC modules powering PLC I/O circuits.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in flyback topology.

Use Value: 150 V VRRM provides 50% safety margin over 12 V output with reflected transients, improving long-term reliability.

USB-C Power Delivery

Telecom Power Supplies

Use Scenario: Compact 45 W GaN-based USB-C chargers with multi-output rails.

IC Role / Device Role / Timing Role: Auxiliary rail rectifier for 5 V/3.3 V logic supply generation.

Use Value: SOD-123HE footprint allows dual-device placement on tight 2-layer PCBs without thermal vias.

Use Scenario: -48 V telecom rectifier modules delivering 1 A bias power to optical transceivers.

IC Role / Device Role / Timing Role: Input-stage reverse polarity protection and ESD clamp diode.

Use Value: 150 V VRRM and 0.2 mA IR at 125°C ensure stable operation in hot chassis environments (>85°C ambient).

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-1EWH01-M3/84A	Same 1 A / 150 V rating; VF = 0.82 V typ (25°C), but IR = 2.0 µA max at 25°C	Higher leakage may impact standby efficiency in battery-backed systems	Prefer SS1H15LS where sub-1 µA IR is mandatory
ON Semiconductor SB1150-T	1 A / 150 V; VF = 0.87 V max, R_θJA = 80 °C/W (vs. 72 °C/W for SS1H15LS)	Lower thermal efficiency requires larger copper area for same power dissipation	Prefer SS1H15LS in thermally constrained layouts

Compared with VS-1EWH01-M3/84A and SB1150-T, the SS1H15LS delivers tighter IR control and superior thermal resistance, making it optimal for high-density, low-standby-power adapter and telecom power designs where leakage and board-level thermal management are critical.

Availability

SS1H15LS is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC-DC converters, and USB-C power delivery systems requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for SS1H15LS 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 power and signal conditioning markets since 1979.

The SS1H15LS belongs to TSC's high-efficiency Schottky rectifier product line, engineered specifically for compact, high-frequency switching power supplies where low VF, low IR, and reliable SMT assembly are essential.

FAQ

What is the maximum junction temperature rating for SS1H15LS?

The SS1H15LS has a maximum junction temperature (T_J) of +150°C, allowing operation in high-ambient environments such as enclosed power adapters or industrial control enclosures. This rating is validated across the full 1 A forward current range and supports derating curves shown in the official SS1H15LS datasheet Figure 1.

Does SS1H15LS have a RoHS-compliant and halogen-free construction?

Yes, the SS1H15LS is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its matte tin-plated leads satisfy J-STD-002 solderability requirements - all confirmed in the Taiwan Semiconductor SS1H15LS specification document Version C2208.

What is the forward voltage specification for SS1H15LS at 1 A and 25°C?

The SS1H15LS has a maximum forward voltage (V_F) of 0.85 V at 1 A and 25°C, measured under pulse test conditions (PW = 0.3 ms). This value is critical for calculating conduction losses and thermal design margins in high-efficiency power supplies.

Is SS1H15LS suitable for use in high-frequency switching topologies like active-clamp flyback?

Yes, the SS1H15LS is well-suited for high-frequency switching topologies including active-clamp flyback due to its Schottky architecture, which eliminates minority-carrier storage delay. Its low reverse recovery charge and 150 V V_RRM support operation up to 500 kHz with minimal switching loss.

What packaging and reel quantity is offered for SS1H15LS?

The SS1H15LS is supplied in SOD-123HE package on tape-and-reel format, with 10,000 units per reel. This standard packing supports automated pick-and-place assembly and aligns with JEDEC-compliant handling protocols for moisture sensitivity level 1 devices.

SS1H15LS 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:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123HE

Operating Temperature - Junction:: -55°C ~ 150°C

SS1H15LS FAQ

1.How can I place an order for SS1H15LS through Aetrix?

Please submit a Request for Quotation (RFQ) for SS1H15LS 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 SS1H15LS reliable?

The price and inventory of SS1H15LS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS1H15LS is usually 5 days.

3.What payment methods are accepted for SS1H15LS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS1H15LS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SS1H15LS?

SS1H15LS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SS1H15LS 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 SS1H15LS?

For technical support, including SS1H15LS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS1H15LS requirements.

6.How does Aetrix verify that SS1H15LS is sourced from the original manufacturer or authorized distributors?

All SS1H15LS 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 SS1H15LS meets industry standards.

7.What is the process for return or replacement of SS1H15LS?

All SS1H15LS units undergo pre-shipment inspection (PSI). If there is an issue with SS1H15LS, 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 SS1H15LS part is unused and in its original packaging.

Return procedure for SS1H15LS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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