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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation SRS1650H

Name: SRS1650H
Brand: Taiwan Semiconductor Corporation
SKU: SRS1650H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRS1650H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: SRS1650H.pdf

Description:: DIODE ARR SCHOTT 50V 16A TO263AB

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Product details

Overview

SRS1650H from Taiwan Semiconductor is a 16A, 50V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, featuring 0.70V typical forward voltage at 8A/25°C, 150A surge capability, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or reverse-battery protection diode in DC/DC converters and car lighting systems.

For engineers reviewing the SRS1650H datasheet, SRS1650H pinout, SRS1650H application, or SRS1650H equivalent, key selection criteria include its 50V V_RRM, dual-die configuration, 2°C/W junction-to-case thermal resistance, TJ max of 150°C, and moisture sensitivity level 1 compliance - all critical for high-efficiency, thermally constrained automotive power designs.

Technical Context

The SRS1650H implements a dual-die Schottky structure in a single TO-263AB (D2PAK) package, enabling high-current handling with low conduction loss. Its guard ring design provides overvoltage protection, and the matte tin-plated terminals ensure reliable solderability per J-STD-002.

Rated for continuous forward current of 16A at case temperature up to 125°C (derated to zero at 150°C), it supports repetitive 8.3ms half-sine surge currents up to 150A and maintains ≤500µA reverse leakage at 50V/25°C and ≤10mA at 50V/100°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage; defines safe operating range in reverse-biased applications like reverse battery protection.
I_F	16 A - Continuous average forward current at T_C = 125°C; determines steady-state power stage capacity in DC/DC converters.
I_FSM	150 A - Non-repetitive peak surge current (8.3ms); enables robustness against load dump or inductive kick transients.
V_F (typ)	0.70 V @ 8A, 25°C - Low forward drop reduces conduction loss and improves system efficiency in high-frequency switching topologies.
R_θJC	2 °C/W - Junction-to-case thermal resistance; allows accurate thermal modeling when mounted on heatsinked PCBs or metal-core substrates.
T_J max	150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments without derating penalties beyond 125°C case temp.
MSL	Level 1 (J-STD-020) - No floor life limitation before reflow; simplifies manufacturing logistics and eliminates bake requirements.

Pinout & Package

Package: TO-263AB (D2PAK) - Surface-mount power package with exposed drain tab for thermal and electrical connection; 3-terminal configuration (Anode1, Cathode, Anode2) for dual-die layout.

Pin/Terminal	Circuit Role	Design Meaning
Tab (center)	Cathode	Electrically and thermally connected to internal cathode metallization; must be soldered to large copper pour or heatsink for optimal thermal performance and current return path.
Lead 1	Anode 1	First Schottky die anode; used for independent or paralleled dual-path configurations such as dual-phase freewheeling.
Lead 2	Anode 2	Second Schottky die anode; enables space-efficient dual-diode functionality without discrete component count increase.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and temperature cycling - ensures long-term reliability in vehicle ECUs and lighting modules.
Guard ring structure	Enhances ruggedness against transient overvoltage events (e.g., load dump) by preventing edge breakdown - critical for reverse battery and clamp protection circuits.
Dual-die configuration	Integrates two independent Schottky dies in one D2PAK footprint - reduces board area vs. two discrete TO-263 devices while maintaining isolation between paths.
Low V_F / high I_F ratio	Delivers 16A conduction with only 0.70V drop at 8A - minimizes power loss (≤5.6W at 8A) and eases thermal management in compact 12V/24V automotive power supplies.

Applications

DC/DC Converter Output Rectification	Reverse Battery Protection
Use Scenario: High-frequency synchronous buck converter in automotive ADAS camera module power supply. IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFET sync switch where ultra-low V_F and zero gate drive complexity are prioritized. Use Value: Enables >92% efficiency at 5A/5V output with minimal thermal rise due to 0.70V V_F and 2°C/W R_θJC.	Use Scenario: Input protection circuit for infotainment head unit powered from vehicle battery rail. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse polarity during jump-start or battery replacement. Use Value: Withstands 150A surge and operates up to 150°C junction temperature - prevents latch-up or failure during real-world fault conditions.
Freewheeling Diode in Motor Drivers	Car Lighting LED Driver Freewheel Path
Use Scenario: H-bridge motor driver for HVAC blower fan in passenger compartment. IC Role / Device Role / Timing Role: Freewheeling path for inductive back-EMF during PWM off-time in 20kHz switching operation. Use Value: 50V V_RRM safely clamps 24V system transients; dual-die layout allows interleaved placement to reduce EMI loop area.	Use Scenario: Constant-current LED driver for rear combination lamps with PWM dimming. IC Role / Device Role / Timing Role: Freewheel diode across boost inductor during switch-off phase in flyback-derived topology. Use Value: Low 0.70V V_F minimizes power dissipation in high-duty-cycle dimming modes, extending thermal margin for sealed lamp housings.

DC/DC Converter Output Rectification

Reverse Battery Protection

Use Scenario: High-frequency synchronous buck converter in automotive ADAS camera module power supply.

IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFET sync switch where ultra-low V_F and zero gate drive complexity are prioritized.

Use Value: Enables >92% efficiency at 5A/5V output with minimal thermal rise due to 0.70V V_F and 2°C/W R_θJC.

Use Scenario: Input protection circuit for infotainment head unit powered from vehicle battery rail.

IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse polarity during jump-start or battery replacement.

Use Value: Withstands 150A surge and operates up to 150°C junction temperature - prevents latch-up or failure during real-world fault conditions.

Freewheeling Diode in Motor Drivers

Car Lighting LED Driver Freewheel Path

Use Scenario: H-bridge motor driver for HVAC blower fan in passenger compartment.

IC Role / Device Role / Timing Role: Freewheeling path for inductive back-EMF during PWM off-time in 20kHz switching operation.

Use Value: 50V V_RRM safely clamps 24V system transients; dual-die layout allows interleaved placement to reduce EMI loop area.

Use Scenario: Constant-current LED driver for rear combination lamps with PWM dimming.

IC Role / Device Role / Timing Role: Freewheel diode across boost inductor during switch-off phase in flyback-derived topology.

Use Value: Low 0.70V V_F minimizes power dissipation in high-duty-cycle dimming modes, extending thermal margin for sealed lamp housings.

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-16CTH05-M3	50V V_RRM, 16A I_F, TO-220AC package, single die, no AEC-Q101 qualification	Lacks automotive qualification and dual-die integration; requires larger board area and separate mounting hardware	Preferred for cost-sensitive industrial DC/DC where automotive reliability and space constraints are not required
ON Semiconductor MBR1650CT	50V V_RRM, 16A I_F, TO-220AB package, dual common-cathode configuration, AEC-Q101 qualified	Same voltage/current rating but TO-220AB through-hole format; higher R_θJC (~3.5°C/W) limits power density	Used where legacy through-hole assembly or mechanical retention is mandated, but sacrifices thermal performance vs. SRS1650H

Compared with VS-16CTH05-M3 and MBR1650CT, the SRS1650H uniquely combines AEC-Q101 qualification, surface-mount D2PAK packaging, dual-die layout, and 2°C/W thermal resistance - making it the only option supporting high-power-density, thermally aggressive automotive applications requiring zero rework risk and automated placement.

Availability

SRS1650H is available at Aetrix Electronics and suitable for automotive lighting systems, DC/DC converters, and reverse battery protection circuits requiring stable component supply, AEC-Q101 compliance, and high surge robustness.

Supply support for SRS1650H 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1992.

The SRS1650H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive under-hood and cabin electronics.

FAQ

What is the maximum junction temperature rating for the SRS1650H?

The SRS1650H has a maximum junction temperature (T_J) rating of +150°C, with full-rated 16A forward current supported up to +125°C case temperature. Derating begins above 125°C case temperature, reaching zero current at 150°C junction temperature. This rating is validated per AEC-Q101 stress testing and enables use in high-ambient automotive environments where thermal management is constrained.

Is the SRS1650H pin-compatible with other parts in the SRS16xxH series?

Yes, all SRS16xxH devices - including SRS1620H through SRS16100H - share identical TO-263AB (D2PAK) package dimensions, pinout, and terminal configuration. The only differences are V_RRM ratings and corresponding forward voltage/reverse leakage characteristics. This allows direct voltage-scaling substitutions on the same PCB layout without redesign.

Does the SRS1650H have a dual-diode configuration, and how is it implemented?

Yes, the SRS1650H integrates two independent Schottky dies in a single TO-263AB (D2PAK) package with three terminals: Anode1, Anode2, and shared Cathode (exposed tab). This dual-die architecture supports parallel conduction, interleaved switching, or isolated freewheel paths - delivering higher current density than single-die alternatives while retaining layout flexibility.

What is the reverse leakage current specification for the SRS1650H at elevated temperature?

At rated 50V reverse voltage and 100°C junction temperature, the SRS1650H exhibits a maximum reverse leakage current (I_R) of 10mA per diode. At 25°C, leakage is limited to 500µA max. These values are measured per JESD24-11 and confirmed in the official TSC datasheet revision A2103 - critical for low-power standby mode integrity in always-on automotive modules.

How does the guard ring feature improve reliability in automotive applications?

The guard ring in the SRS1650H prevents premature edge breakdown during voltage transients such as ISO 7637-2 load dump pulses. By controlling electric field distribution at the silicon periphery, it increases ruggedness against overvoltage stress without increasing forward voltage - directly enhancing long-term reliability in reverse battery protection and clamp circuits where transient immunity is mandatory.

SRS1650H Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

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

Current - Average Rectified (Io) (per Diode):: 16A

Voltage - Forward (Vf) (Max) @ If:: 700 mV @ 8 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 50 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

SRS1650H FAQ

1.How can I place an order for SRS1650H through Aetrix?

Please submit a Request for Quotation (RFQ) for SRS1650H 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 SRS1650H reliable?

The price and inventory of SRS1650H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS1650H is usually 5 days.

3.What payment methods are accepted for SRS1650H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS1650H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRS1650H?

SRS1650H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRS1650H 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 SRS1650H?

For technical support, including SRS1650H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS1650H requirements.

6.How does Aetrix verify that SRS1650H is sourced from the original manufacturer or authorized distributors?

All SRS1650H 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 SRS1650H meets industry standards.

7.What is the process for return or replacement of SRS1650H?

All SRS1650H units undergo pre-shipment inspection (PSI). If there is an issue with SRS1650H, 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 SRS1650H part is unused and in its original packaging.

Return procedure for SRS1650H:

1.Submit a request within 90 days.

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

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