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

Taiwan Semiconductor Corporation SS15H

Name: SS15H
Brand: Taiwan Semiconductor Corporation
SKU: SS15H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SS15H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: SS15H.pdf

Description:: DIODE SCHOTTKY 50V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:8,376

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Product details

Overview

SS15H from Taiwan Semiconductor is a 1A, 50V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, AEC-Q101 qualified, with 0.75V forward voltage at 1A/25°C, 40A peak surge current, and 150°C maximum junction temperature. It serves as a freewheeling or reverse-battery protection diode in automotive DC/DC converters.

For engineers reviewing the SS15H datasheet, SS15H pinout, SS15H application, or SS15H equivalent, key selection criteria include its 50V V_RRM, low VF at high temperature, moisture sensitivity level 1 rating, and DO-214AC mechanical compatibility with automated SMT assembly lines.

Technical Context

The SS15H is a single-die Schottky rectifier optimized for low-loss operation in high-frequency switching power supplies. Its guard ring structure provides overvoltage protection, and its matte tin-plated leads meet J-STD-002 solderability requirements.

Thermal performance is defined by R_θJL = 28°C/W and R_θJA = 88°C/W, supporting continuous 1A conduction up to 150°C junction temperature. Reverse leakage is limited to 200μA at 25°C and 5mA at 100°C under rated 50V reverse bias.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse voltage; defines safe blocking capability in 50V-rated systems
I_F	1 A - Continuous forward current rating; supports stable operation in compact DC/DC converter outputs
V_F @ 1A, 25°C	0.75 V - Low conduction loss enabling >92% efficiency in 5–12V output stages
I_FSM	40 A - Peak surge current handling; withstands inrush and transient events without failure
T_J max	150 °C - Extended junction temperature range enables use in under-hood automotive environments
R_θJL	28 °C/W - Low junction-to-lead thermal resistance; allows direct PCB copper pour heat sinking
MSL	Level 1 - No floor life limitation; compatible with standard reflow without dry-pack requirements

Pinout & Package

Package: DO-214AC (SMA), surface-mount plastic case with cathode band polarity marking, 0.060g mass, UL 94V-0 molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential side (e.g., switch node or ground return) in freewheeling path
Cathode	Forward current exit / reverse voltage terminal	Marked by band; connects to higher-potential rail (e.g., input or output bus) for unidirectional conduction

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan
Guard ring structure	Enhances ruggedness against transient overvoltage spikes without external clamping components
Low I_R at 100°C	5 mA max reverse leakage ensures minimal standby power loss in hot ambient conditions
Matte tin lead finish	Guarantees consistent wetting and void-free solder joints in lead-free reflow profiles
High dV/dt capability	10,000 V/µs rating prevents false turn-on during fast-switching MOSFET gate drive transitions

Applications

Automotive DC/DC Converters	Reverse Battery Protection
Use Scenario: Step-down conversion from 12V battery to 5V/3.3V rails in body control modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology. Use Value: 0.75V V_F reduces conduction loss by ~30% vs. standard PN diodes, improving thermal margin at 1A load.	Use Scenario: Preventing damage when battery terminals are accidentally reversed during service. IC Role / Device Role / Timing Role: Series-blocking diode on main power input rail. Use Value: 50V V_RRM and 40A I_FSM tolerate jump-start surges while maintaining low forward drop during normal operation.
LED Driver Freewheeling	Low-Voltage Inverter Output
Use Scenario: High-side switch-based LED string drivers in automotive lighting systems. IC Role / Device Role / Timing Role: Catch diode across inductive LED load during PWM off-time. Use Value: Fast recovery and low capacitance minimize switching losses and EMI in 100–500kHz PWM dimming.	Use Scenario: Output rectification in 24V-to-48V bidirectional inverters for mild-hybrid architectures. IC Role / Device Role / Timing Role: Unidirectional current path in half-bridge output stage. Use Value: 150°C T_J max and MSL Level 1 support high-power density packaging with minimal derating.

Automotive DC/DC Converters

Reverse Battery Protection

Use Scenario: Step-down conversion from 12V battery to 5V/3.3V rails in body control modules.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology.

Use Value: 0.75V V_F reduces conduction loss by ~30% vs. standard PN diodes, improving thermal margin at 1A load.

Use Scenario: Preventing damage when battery terminals are accidentally reversed during service.

IC Role / Device Role / Timing Role: Series-blocking diode on main power input rail.

Use Value: 50V V_RRM and 40A I_FSM tolerate jump-start surges while maintaining low forward drop during normal operation.

LED Driver Freewheeling

Low-Voltage Inverter Output

Use Scenario: High-side switch-based LED string drivers in automotive lighting systems.

IC Role / Device Role / Timing Role: Catch diode across inductive LED load during PWM off-time.

Use Value: Fast recovery and low capacitance minimize switching losses and EMI in 100–500kHz PWM dimming.

Use Scenario: Output rectification in 24V-to-48V bidirectional inverters for mild-hybrid architectures.

IC Role / Device Role / Timing Role: Unidirectional current path in half-bridge output stage.

Use Value: 150°C T_J max and MSL Level 1 support high-power density packaging with minimal 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-1N5819-M3/54	20V V_RRM, 1A I_F, 0.475V V_F @ 1A - lower voltage rating, lower VF	Not suitable for 50V systems; limited to ≤20V reverse blocking	Select only for sub-20V applications where ultra-low VF is prioritized over voltage margin
ON Semiconductor SB150	50V V_RRM, 1A I_F, 0.72V V_F @ 1A - nearly identical electrical specs, same DO-214AC package	Same footprint and function; differs in AEC-Q101 qualification status and thermal resistance (R_θJA = 90°C/W)	SB150 offers comparable performance but lacks AEC-Q101 validation; SS15H preferred for automotive production

Compared with VS-1N5819-M3/54 and SB150, the SS15H uniquely combines 50V blocking, AEC-Q101 qualification, and 28°C/W junction-to-lead thermal resistance-enabling robust, thermally efficient operation in automotive power rails where reliability and thermal headroom are critical.

Availability

SS15H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and LED driver freewheeling applications requiring stable component supply and full AEC-Q101 compliance.

Supply support for SS15H 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.

The SS15H belongs to TSC's SS1xH Schottky rectifier family, engineered specifically for high-reliability automotive power conversion where low VF, surge robustness, and extended temperature operation are mandatory.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the SS15H?

The SS15H has a V_RRM of 50 V, meaning it can reliably block up to 50 volts in reverse bias without breakdown. This rating is confirmed in the Absolute Maximum Ratings table on page 2 of the B2305 datasheet and applies specifically to the SS15H variant within the SS1xH family. Exceeding this voltage risks irreversible avalanche failure.

Is the SS15H suitable for automotive applications?

Yes, the SS15H is AEC-Q101 qualified, making it suitable for automotive applications including engine control units, body electronics, and lighting systems. Its 150°C maximum junction temperature, guard ring overvoltage protection, and MSL Level 1 rating align with automotive manufacturing and under-hood environmental requirements. The SS15H datasheet explicitly lists "Car lighting" and "Reverse battery protection" as target applications.

What is the forward voltage (V_F) of the SS15H at 1A and 100°C?

The SS15H exhibits a typical forward voltage of 0.65 V at 1A and 100°C, as specified in the Electrical Specifications table on page 2 of the B2305 datasheet. This value is measured under pulse conditions (PW = 0.3ms) and reflects real-world performance in thermally stressed operating conditions such as enclosed automotive modules.

Does the SS15H have a defined moisture sensitivity level (MSL)?

Yes, the SS15H has a moisture sensitivity level of Level 1 per J-STD-020, meaning it has no floor life limitation and may be stored indefinitely at ambient conditions without dry-pack requirements. This simplifies handling and eliminates bake-out steps prior to reflow soldering, supporting high-yield automated assembly in volume production.

What package type does the SS15H use, and what are its key mechanical features?

The SS15H uses the DO-214AC (SMA) surface-mount package, with dimensions per JEDEC DO-214 Variation AC. Key features include a UL 94V-0 flammability-rated molding compound, matte tin-plated leads compliant with J-STD-002, cathode band polarity marking, and a nominal weight of 0.060g. The package outline is documented on page 7 of the B2305 datasheet.

SS15H Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 750 mV @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 200 µA @ 50 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

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

SS15H FAQ

1.How can I place an order for SS15H through Aetrix?

Please submit a Request for Quotation (RFQ) for SS15H 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 SS15H reliable?

The price and inventory of SS15H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS15H is usually 5 days.

3.What payment methods are accepted for SS15H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS15H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SS15H?

SS15H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SS15H 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 SS15H?

For technical support, including SS15H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS15H requirements.

6.How does Aetrix verify that SS15H is sourced from the original manufacturer or authorized distributors?

All SS15H 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 SS15H meets industry standards.

7.What is the process for return or replacement of SS15H?

All SS15H units undergo pre-shipment inspection (PSI). If there is an issue with SS15H, 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 SS15H part is unused and in its original packaging.

Return procedure for SS15H:

1.Submit a request within 90 days.

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

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