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

Taiwan Semiconductor Corporation SR506H

Name: SR506H
Brand: Taiwan Semiconductor Corporation
SKU: SR506H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SR506H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: SR506H.pdf

Description:: DIODE SCHOTTKY 60V 5A DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:6,015

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Product details

Overview

SR506H from Taiwan Semiconductor is an AEC-Q101-qualified 5A, 60V Schottky barrier rectifier in DO-201AD package, featuring low forward voltage (0.70 V max at 5A, 25°C), high surge capability (120 A), and guard ring overvoltage protection-used in automotive-grade DC/DC converters and SMPS secondary-side rectification.

For engineers reviewing the SR506H datasheet, SR506H pinout, SR506H application, or SR506H equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 10 mA reverse leakage at 100°C, 6 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification for under-hood power conversion systems.

Technical Context

The SR506H implements a single-die Schottky structure with guard ring termination to enhance dv/dt ruggedness (10,000 V/µs) and transient overvoltage immunity. Its low VF and high IFSM support high-efficiency, high-reliability rectification in compact 12–24 V automotive DC/DC topologies.

Thermally, it delivers R_θJC = 6 °C/W and R_θJA = 35 °C/W in DO-201AD, enabling stable operation up to T_J = 150°C. Reverse leakage remains ≤10 mA at 100°C, critical for thermal runaway mitigation in sealed power modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	60 V - supports 48 V nominal bus systems with 25% safety margin against transients
I_F	5 A continuous - rated for sustained output current in 60 W–100 W DC/DC stages
V_F (max)	0.70 V @ 5 A, 25°C - reduces conduction loss to ≤3.5 W, improving efficiency by ~1.2% vs. Si diodes
I_FSM	120 A @ 8.3 ms - withstands cold-start inrush and load-dump surges without failure
T_J max	150°C - enables operation in engine bay environments without derating below 125°C ambient
R_θJC	6 °C/W - allows direct heatsinking to chassis or PCB copper for thermal management
I_R @ 100°C	≤10 mA - ensures stable blocking behavior during high-temp transient conditions

Pinout & Package

DO-201AD axial-leaded package with cathode band marking; leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current entry point	Connected to transformer secondary or switching node; requires ≥1.5 mm creepage clearance
Cathode	Output current exit point	Marked by band; ties to output filter capacitor and ground return path

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive power electronics per stress test requirements (HTOL, TC, HTRB, etc.)
Guard ring structure	Prevents edge breakdown under fast dv/dt events (≥10 kV/µs), increasing reliability in noisy switchers
Low V_F / high I_FSM balance	Enables 5 A continuous conduction with minimal self-heating while surviving 120 A surge peaks
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing

Applications

Automotive DC/DC Converter	Industrial SMPS Secondary Rectifier
Use Scenario: 12 V to 5 V/3.3 V buck-derived converter in ADAS ECU with 60 V input transients. IC Role / Device Role / Timing Role: Primary unidirectional power switch on secondary side, conducting during synchronous rectifier off-time. Use Value: 0.70 V V_F cuts conduction loss by 40% vs. standard Si diode, reducing thermal load in sealed enclosure.	Use Scenario: 48 V input telecom SMPS delivering 12 V/10 A output with >90% efficiency target. IC Role / Device Role / Timing Role: Freewheeling rectifier in center-tapped or full-wave configuration. Use Value: 120 A I_FSM handles startup surges without derating; 150°C T_J rating avoids thermal shutdown during burst-mode operation.
USB-C PD Adapter Output Stage	On-Board Charger (OBC) Auxiliary Supply
Use Scenario: 20 V output stage of 65 W GaN-based USB-C PD adapter operating at 200 kHz. IC Role / Device Role / Timing Role: Output rectifier synchronized with primary-side switching; operates in discontinuous conduction mode. Use Value: Low junction capacitance (<100 pF @ 4 V) minimizes reverse recovery loss and EMI generation.	Use Scenario: 12 V auxiliary supply derived from 400 V battery in EV on-board charger module. IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier after flyback transformer, exposed to 60 V reflected transients. Use Value: AEC-Q101 qualification and guard ring ensure functional safety compliance (ISO 26262 ASIL-B supporting role).

Automotive DC/DC Converter

Industrial SMPS Secondary Rectifier

Use Scenario: 12 V to 5 V/3.3 V buck-derived converter in ADAS ECU with 60 V input transients.

IC Role / Device Role / Timing Role: Primary unidirectional power switch on secondary side, conducting during synchronous rectifier off-time.

Use Value: 0.70 V V_F cuts conduction loss by 40% vs. standard Si diode, reducing thermal load in sealed enclosure.

Use Scenario: 48 V input telecom SMPS delivering 12 V/10 A output with >90% efficiency target.

IC Role / Device Role / Timing Role: Freewheeling rectifier in center-tapped or full-wave configuration.

Use Value: 120 A I_FSM handles startup surges without derating; 150°C T_J rating avoids thermal shutdown during burst-mode operation.

USB-C PD Adapter Output Stage

On-Board Charger (OBC) Auxiliary Supply

Use Scenario: 20 V output stage of 65 W GaN-based USB-C PD adapter operating at 200 kHz.

IC Role / Device Role / Timing Role: Output rectifier synchronized with primary-side switching; operates in discontinuous conduction mode.

Use Value: Low junction capacitance (<100 pF @ 4 V) minimizes reverse recovery loss and EMI generation.

Use Scenario: 12 V auxiliary supply derived from 400 V battery in EV on-board charger module.

IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier after flyback transformer, exposed to 60 V reflected transients.

Use Value: AEC-Q101 qualification and guard ring ensure functional safety compliance (ISO 26262 ASIL-B supporting role).

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-50SQ060	Same V_RRM (60 V), higher I_F (5.5 A), slightly higher V_F (0.75 V max), non-AEC-Q101	Lacks automotive qualification; suitable for industrial/commercial only	Select when AEC-Q101 not required and higher surge margin is needed
ON Semiconductor SB560	Same package (DO-201AD), lower V_RRM (60 V), same I_F, V_F = 0.72 V max, no AEC-Q101	No automotive qualification; lower thermal robustness (R_θJC = 7.5 °C/W)	Choose for cost-sensitive non-automotive designs where 150°C T_J is not mandatory

Compared with VS-50SQ060 and SB560, the SR506H uniquely combines AEC-Q101 qualification, 150°C junction rating, and 6 °C/W thermal resistance-making it the only option qualified for under-hood automotive power rails requiring long-term reliability at elevated temperature.

Availability

SR506H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS, and USB-C PD adapters requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot history.

Supply support for SR506H 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 SR506H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability, high-temperature power conversion in automotive electrification and industrial automation systems.

FAQ

What is the maximum junction temperature rating for the SR506H?

The SR506H has a maximum junction temperature (T_J) rating of +150°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in engine compartment environments where ambient temperatures reach 125°C, provided thermal design maintains junction temperature below this limit. The SR506H datasheet specifies derating curves confirming full 5 A current capability up to 110°C ambient with adequate heatsinking.

Is the SR506H pin-compatible with other parts in the SR5xx family?

Yes, all SR5xx devices-including SR506H-share identical DO-201AD package dimensions, lead spacing, and axial anode/cathode terminal configuration. The SR506H uses the same mechanical footprint and soldering profile as SR502 through SR520, enabling drop-in replacement across voltage grades without PCB layout changes.

Does the SR506H have AEC-Q101 qualification documentation available?

Yes, the SR506H carries full AEC-Q101 qualification per Rev. J2105 datasheet, covering HTOL, temperature cycling, HTRB, and ESD tests. Certification reports are available upon request from Taiwan Semiconductor and authorized distributors. The "H" suffix in SR506H explicitly denotes AEC-Q101-compliant manufacturing and test flow.

What is the reverse leakage current specification for SR506H at 100°C?

The SR506H specifies a maximum reverse leakage current (I_R) of 10 mA at rated V_RRM = 60 V and junction temperature of 100°C, per the electrical specifications table in the official datasheet. This value is measured under 30 ms pulse conditions and reflects stable blocking behavior essential for thermal stability in high-ambient applications.

How does the guard ring feature improve reliability in the SR506H?

The guard ring in the SR506H mitigates edge breakdown under high dv/dt stress, raising the critical rate of rise of off-state voltage to 10,000 V/µs. This prevents premature avalanche at device periphery during fast-switching transients-common in GaN- or SiC-based SMPS-thereby extending lifetime and improving field failure resistance compared to non-guarded Schottky rectifiers.

SR506H 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):: 60 V

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 700 mV @ 5 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 60 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

SR506H FAQ

1.How can I place an order for SR506H through Aetrix?

Please submit a Request for Quotation (RFQ) for SR506H 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 SR506H reliable?

The price and inventory of SR506H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR506H is usually 5 days.

3.What payment methods are accepted for SR506H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR506H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SR506H?

SR506H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SR506H 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 SR506H?

For technical support, including SR506H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR506H requirements.

6.How does Aetrix verify that SR506H is sourced from the original manufacturer or authorized distributors?

All SR506H 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 SR506H meets industry standards.

7.What is the process for return or replacement of SR506H?

All SR506H units undergo pre-shipment inspection (PSI). If there is an issue with SR506H, 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 SR506H part is unused and in its original packaging.

Return procedure for SR506H:

1.Submit a request within 90 days.

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

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