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

Taiwan Semiconductor Corporation SR815H

Name: SR815H
Brand: Taiwan Semiconductor Corporation
SKU: SR815H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SR815H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: SR815H.pdf

Description:: DIODE SCHOTTKY 150V 8A DO201AD

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SR815H from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 150V Schottky barrier rectifier in DO-201AD package, featuring low forward voltage (1.02 V at 8A, 25°C), high surge current capability (150 A), and guard ring overvoltage protection. It serves as a primary output rectifier in automotive-grade DC/DC converters and industrial SMPS where efficiency and reliability under thermal stress are critical.

For engineers reviewing the SR815H datasheet, SR815H pinout, SR815H application, or SR815H equivalent, key selection factors include its 150 V repetitive peak reverse voltage, 100 µA max reverse leakage at 25°C, junction temperature range up to +150°C, and AEC-Q101 qualification for automotive power systems.

Technical Context

This single-die Schottky rectifier uses a planar junction structure with integrated guard ring to suppress edge breakdown and sustain high dv/dt (10,000 V/µs). Its thermal resistance (R_θJA = 40°C/W) supports operation at full 8A average forward current up to 75°C ambient when mounted on standard PCB copper areas.

The device exhibits soft reverse recovery and low junction capacitance-typical values are 100–200 pF at 4 V reverse bias (f = 1 MHz)-making it suitable for high-frequency switching topologies operating above 100 kHz without excessive EMI generation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - Maximum repetitive reverse voltage; defines safe blocking capability in 12 V–48 V automotive bus-derived DC/DC stages
I_F	8 A - Continuous average forward current; enables compact 60–100 W power stage designs without forced air cooling
I_FSM	150 A - Non-repetitive surge rating (8.3 ms half-sine); withstands inrush and fault currents in battery-connected systems
V_F	1.02 V @ 8 A, 25°C - Low conduction loss; contributes <1.5 W dissipation at full load, reducing heatsink requirements
I_R	100 µA @ 150 V, 25°C - Tight reverse leakage ensures minimal standby power loss in always-on vehicle modules
T_J max	+150°C - Extended junction rating allows operation in engine bay or under-hood environments without derating
R_θJA	40°C/W - Thermal resistance to ambient; requires ≥2 cm² of 2-oz copper pad for full 8 A operation at 75°C ambient

Pinout & Package

DO-201AD axial-leaded package with cathode band marking; leads are pure tin plated, solderable per J-STD-002, and pass JESD201 Class 2 whisker test. Weight: ~1.10 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead without band)	Forward current entry point	Connected to positive side of transformer secondary or switch node; must handle full 8 A RMS and 150 A surge
Cathode (lead with band)	Forward current exit / reverse voltage reference	Connected to output rail; polarity marking prevents misassembly in high-volume automotive manufacturing

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive power electronics including engine control units and ADAS domain controllers
Guard ring structure	Prevents premature edge breakdown at rated V_RRM, improving long-term reliability under voltage transients
Low I_R at high T_J	≤5 mA @ 150 V, 125°C - maintains low standby loss even in hot under-hood conditions
RoHS & halogen-free	Complies with IEC 61249-2-21; supports automotive OEM environmental compliance programs
UL 94V-0 molding compound	Self-extinguishing encapsulant meets automotive flammability requirements for under-hood placement

Applications

Automotive DC/DC Converter	Industrial SMPS Output Stage
Use Scenario: 12 V to 5 V/3.3 V conversion in body control module with 60 W peak load and 125°C ambient exposure. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFETs in secondary-side regulation; handles continuous 8 A output current. Use Value: 1.02 V V_F reduces conduction loss by >15% vs. comparable 150 V Si diodes, lowering thermal stress on PCB layout.	Use Scenario: 48 V input telecom rectifier supplying 12 V/5 A to FPGA-based baseband processing unit. IC Role / Device Role / Timing Role: Output freewheeling diode in active-clamp forward converter operating at 250 kHz switching frequency. Use Value: Low junction capacitance (<200 pF) minimizes switching losses and EMI during hard commutation events.
LED Driver Power Supply	Onboard Charger Auxiliary Supply
Use Scenario: Constant-current LED driver for commercial lighting with 36 V output and 200 ms cold-start inrush. IC Role / Device Role / Timing Role: Input bridge rectifier feeding PFC stage; subjected to line surges and zero-crossing stress. Use Value: 150 A I_FSM rating absorbs repeated 10 A inrush peaks without degradation over 10-year service life.	Use Scenario: Auxiliary 12 V supply in EV onboard charger, powered from 400 V DC link via isolated flyback. IC Role / Device Role / Timing Role: Secondary-side output rectifier; operates continuously at 85°C case temperature inside sealed enclosure. Use Value: +150°C T_J max and 100 µA I_R at 25°C ensure stable regulation and low no-load consumption across full vehicle lifecycle.

Automotive DC/DC Converter

Industrial SMPS Output Stage

Use Scenario: 12 V to 5 V/3.3 V conversion in body control module with 60 W peak load and 125°C ambient exposure.

IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFETs in secondary-side regulation; handles continuous 8 A output current.

Use Value: 1.02 V V_F reduces conduction loss by >15% vs. comparable 150 V Si diodes, lowering thermal stress on PCB layout.

Use Scenario: 48 V input telecom rectifier supplying 12 V/5 A to FPGA-based baseband processing unit.

IC Role / Device Role / Timing Role: Output freewheeling diode in active-clamp forward converter operating at 250 kHz switching frequency.

Use Value: Low junction capacitance (<200 pF) minimizes switching losses and EMI during hard commutation events.

LED Driver Power Supply

Onboard Charger Auxiliary Supply

Use Scenario: Constant-current LED driver for commercial lighting with 36 V output and 200 ms cold-start inrush.

IC Role / Device Role / Timing Role: Input bridge rectifier feeding PFC stage; subjected to line surges and zero-crossing stress.

Use Value: 150 A I_FSM rating absorbs repeated 10 A inrush peaks without degradation over 10-year service life.

Use Scenario: Auxiliary 12 V supply in EV onboard charger, powered from 400 V DC link via isolated flyback.

IC Role / Device Role / Timing Role: Secondary-side output rectifier; operates continuously at 85°C case temperature inside sealed enclosure.

Use Value: +150°C T_J max and 100 µA I_R at 25°C ensure stable regulation and low no-load consumption across full vehicle lifecycle.

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-8EWH15-M3/45	Same 150 V V_RRM, 8 A I_F, but TO-277 surface-mount package; V_F = 0.95 V @ 8 A	Requires rework of PCB layout; better suited for automated SMT lines than through-hole DO-201AD	Select if board space is constrained and SMT assembly is available
ON Semiconductor SB8150	150 V V_RRM, 8 A I_F, DO-201AD package, but not AEC-Q101 qualified; V_F = 1.05 V @ 8 A	Lacks automotive qualification; reverse leakage higher (200 µA @ 25°C)	Select for cost-sensitive industrial applications where AEC-Q101 is not mandated

Compared with VS-8EWH15-M3/45 and SB8150, SR815H uniquely combines AEC-Q101 qualification, DO-201AD through-hole compatibility, and 100 µA reverse leakage-making it the only drop-in solution for legacy automotive power supplies requiring field-proven reliability and manual repairability.

Availability

SR815H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS output stages, and LED driver power supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for SR815H 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 SR802–SR820 series was designed specifically for high-reliability, high-efficiency rectification in automotive power systems-emphasizing AEC-Q101 compliance, extended temperature operation, and robust surge handling in harsh environments.

FAQ

What is the maximum junction temperature rating for SR815H?

The SR815H has a maximum junction temperature (T_J) rating of +150°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive applications where ambient temperatures exceed 105°C, provided thermal design maintains junction temperature below this limit. The SR815H datasheet specifies derating curves confirming 8 A continuous current is sustainable up to 75°C ambient with standard PCB copper area.

Is SR815H pin-compatible with other parts in the SR8xx family?

Yes, all SR8xx devices-including SR815H-share identical DO-201AD package dimensions, lead spacing, and polarity marking (cathode band), enabling direct mechanical replacement across the 20 V to 200 V voltage range. However, electrical parameters such as V_F, I_R, and thermal performance differ by voltage grade, so electrical validation is required before substitution.

Does SR815H meet RoHS and halogen-free requirements?

Yes, SR815H complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and the pure tin-plated leads meet J-STD-002 solderability standards. Full material declarations and test reports are available upon request for automotive OEM compliance audits.

What is the surge current rating of SR815H and how is it tested?

The SR815H is rated for 150 A non-repetitive forward surge current (I_FSM) under an 8.3 ms single half-sine wave condition, per JEDEC JESD282B. This rating reflects real-world transient stresses such as capacitor charging inrush or short-circuit recovery. The guard ring structure enhances surge survivability by distributing electric field stress away from junction edges.

How does the forward voltage of SR815H compare to lower-voltage SR8xx parts?

SR815H has a typical forward voltage of 1.02 V at 8 A and 25°C-higher than SR805 (0.70 V) or SR802 (0.55 V) due to increased barrier height needed for 150 V blocking. This trade-off ensures stable reverse characteristics without compromising surge robustness; the 1.02 V value remains competitive versus alternative 150 V Schottky rectifiers in the same package.

SR815H Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-201AD, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: 1.02 V @ 8 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 150 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

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

SR815H FAQ

1.How can I place an order for SR815H through Aetrix?

Please submit a Request for Quotation (RFQ) for SR815H 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 SR815H reliable?

The price and inventory of SR815H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR815H is usually 5 days.

3.What payment methods are accepted for SR815H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR815H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SR815H?

SR815H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SR815H 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 SR815H?

For technical support, including SR815H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR815H requirements.

6.How does Aetrix verify that SR815H is sourced from the original manufacturer or authorized distributors?

All SR815H 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 SR815H meets industry standards.

7.What is the process for return or replacement of SR815H?

All SR815H units undergo pre-shipment inspection (PSI). If there is an issue with SR815H, 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 SR815H part is unused and in its original packaging.

Return procedure for SR815H:

1.Submit a request within 90 days.

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

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