Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation SRA1650

Name: SRA1650
Brand: Taiwan Semiconductor Corporation
SKU: SRA1650
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SRA1650

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: SRA1650.pdf

Description:: 16A, 50V, PLANAR SCHOTTKY

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,652

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SRA1650 from Taiwan Semiconductor is a 16A, 50V Schottky barrier rectifier in TO-220AC package, designed for high-efficiency DC/DC conversion and SMPS output stages. It delivers VF = 0.70 V at 16 A and 25°C, supports 200 A non-repetitive surge current, operates up to 150°C junction temperature, and features guard ring overvoltage protection.

For engineers reviewing the SRA1650 datasheet, SRA1650 pinout, SRA1650 application, or SRA1650 equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (R_θJC = 5°C/W), repetitive peak reverse voltage (50 V), surge capability (200 A), and AEC-Q101 qualification status for automotive-grade reliability validation.

Technical Context

The SRA1650 uses a single-die Schottky structure optimized for low conduction loss in medium-voltage rectification. Its 50 V V_RRM rating targets 24–48 V system rails, while the 5°C/W junction-to-case thermal resistance enables direct heatsink mounting without thermal interface material in many industrial designs.

Guard ring integration provides robust transient overvoltage immunity, and the device meets JESD201 Class 2 whisker resistance and RoHS/halogen-free compliance per IEC 61249-2-21 - critical for automotive and long-lifecycle industrial deployments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage; defines usable input/output voltage range in buck-derived topologies
I_F	16 A - Continuous forward current rating at case temperature ≤ 100°C; sets minimum heatsink sizing baseline
I_FSM	200 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling in power supplies
V_F	0.70 V @ 16 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal load in high-duty-cycle operation
R_θJC	5°C/W - Junction-to-case thermal resistance; enables ~10 W dissipation with ≤50°C case-to-ambient delta under forced convection
T_J max	150°C - Maximum junction temperature rating; allows operation in sealed enclosures or high-ambient environments
I_R	500 µA @ 50 V, 25°C - Reverse leakage current; low value minimizes standby power loss in offline adapters

Pinout & Package

Package: TO-220AC - 3-terminal through-hole package with isolated tab (cathode-connected), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction path	Connected to source-side of switching node; must handle full load current and surge transients
Cathode	Output terminal for forward conduction path	Electrically tied to metal tab; requires insulated mounting when tab is not grounded
Tab (Cathode)	Thermal and electrical cathode connection	Primary heat transfer surface; electrically active - isolation required if circuit ground differs from cathode potential

Key Features

Feature	Design Value
Guard ring overvoltage protection	Enhances ruggedness against line transients and inductive kickback without external snubbers
AEC-Q101 qualified option (SRA1650H)	Validated for automotive under-hood applications including engine control and ADAS power modules
Low VF = 0.70 V @ 16 A	Reduces conduction loss by ~15% vs. comparable 60 V Schottkys, improving efficiency in 48 V telecom systems
RoHS + halogen-free	Complies with IEC 61249-2-21; eliminates brominated flame retardants for safer end-of-life processing
JESD201 Class 2 whisker resistance	Prevents tin whisker growth under thermal cycling, ensuring long-term reliability in industrial controls

Applications

Server Power Supply	Automotive DC/DC Converter
Use Scenario: Secondary-side synchronous rectification in 48 V–12 V isolated buck converters for AI server racks. IC Role / Device Role / Timing Role: High-current Schottky rectifier replacing MOSFETs in cost-sensitive, thermally constrained layouts. Use Value: 0.70 V forward drop reduces conduction loss by 1.1 W vs. 0.85 V alternatives at 16 A, lowering heatsink mass by 35 g.	Use Scenario: 12 V battery backup path in ADAS domain controllers with cold-crank tolerance. IC Role / Device Role / Timing Role: OR-ing diode enabling seamless switchover between main battery and auxiliary supply during cranking dips. Use Value: 200 A surge rating withstands 150 A cranking pulses; 150°C T_J max ensures operation at 105°C ambient under hood.
Industrial PLC Power Module	Medical Imaging Power Adapter
Use Scenario: Output rectification in DIN-rail mounted 24 V/20 A AC/DC power supplies for programmable logic controllers. IC Role / Device Role / Timing Role: Primary output rectifier operating continuously at 85% load with natural convection cooling. Use Value: 5°C/W R_θJC allows 12 W dissipation with ≤60°C case rise, eliminating need for fan or thermal pad in compact enclosures.	Use Scenario: Input-stage rectification in Class II medical-grade 100–240 VAC to 48 VDC adapters for portable ultrasound units. IC Role / Device Role / Timing Role: Bridge rectifier replacement in high-reliability, low-leakage front-end design. Use Value: 500 µA reverse leakage at 50 V minimizes no-load power draw (<15 mW), supporting Energy Star Tier 2 compliance.

Server Power Supply

Automotive DC/DC Converter

Use Scenario: Secondary-side synchronous rectification in 48 V–12 V isolated buck converters for AI server racks.

IC Role / Device Role / Timing Role: High-current Schottky rectifier replacing MOSFETs in cost-sensitive, thermally constrained layouts.

Use Value: 0.70 V forward drop reduces conduction loss by 1.1 W vs. 0.85 V alternatives at 16 A, lowering heatsink mass by 35 g.

Use Scenario: 12 V battery backup path in ADAS domain controllers with cold-crank tolerance.

IC Role / Device Role / Timing Role: OR-ing diode enabling seamless switchover between main battery and auxiliary supply during cranking dips.

Use Value: 200 A surge rating withstands 150 A cranking pulses; 150°C T_J max ensures operation at 105°C ambient under hood.

Industrial PLC Power Module

Medical Imaging Power Adapter

Use Scenario: Output rectification in DIN-rail mounted 24 V/20 A AC/DC power supplies for programmable logic controllers.

IC Role / Device Role / Timing Role: Primary output rectifier operating continuously at 85% load with natural convection cooling.

Use Value: 5°C/W R_θJC allows 12 W dissipation with ≤60°C case rise, eliminating need for fan or thermal pad in compact enclosures.

Use Scenario: Input-stage rectification in Class II medical-grade 100–240 VAC to 48 VDC adapters for portable ultrasound units.

IC Role / Device Role / Timing Role: Bridge rectifier replacement in high-reliability, low-leakage front-end design.

Use Value: 500 µA reverse leakage at 50 V minimizes no-load power draw (<15 mW), supporting Energy Star Tier 2 compliance.

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	50 V V_RRM, 16 A I_F, VF = 0.67 V @ 16 A, TO-220AC, but no AEC-Q101 option	Lower VF improves efficiency marginally; lacks automotive qualification and guard ring	Select for cost-sensitive industrial SMPS where AEC-Q101 is not required
ON Semiconductor MBR1650CT	50 V V_RRM, dual common-cathode configuration (16 A per die), VF = 0.72 V @ 16 A, TO-220AB	Dual-diode layout enables center-tapped transformer designs; TO-220AB has non-isolated tab	Select when dual-output or center-tap rectification is needed, accepting higher VF and non-isolated thermal path

Compared with VS-16CTH05-M3 and MBR1650CT, the SRA1650 offers unique AEC-Q101 qualification and integrated guard ring - making it the only choice among the three for automotive under-hood rectification requiring both surge robustness and qualification traceability.

Availability

SRA1650 is available at Aetrix Electronics and suitable for server power supplies, automotive DC/DC converters, and industrial PLC power modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for SRA1650 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 industrial, automotive, and computing markets since 1979.

The SRA1650 belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability, medium-voltage power conversion in automotive and industrial environments where thermal stability and transient immunity are critical.

FAQ

What is the maximum junction temperature rating for the SRA1650?

The SRA1650 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version K2103). This allows reliable operation in high-ambient environments such as automotive engine compartments or sealed industrial enclosures. The SRA1650 maintains specified electrical performance up to this limit when thermal design respects R_θJC = 5°C/W and case temperature constraints.

Does the SRA1650 have AEC-Q101 qualification?

The base SRA1650 is not AEC-Q101 qualified; however, the variant SRA1650H is explicitly listed in the ordering information as AEC-Q101 qualified. Per Taiwan Semiconductor documentation, SRA1650H undergoes full stress testing per AEC-Q101 Rev D, including HTSL, TC, and UHAST. For automotive applications requiring qualification evidence, SRA1650H - not SRA1650 - must be specified and sourced.

What is the forward voltage drop of the SRA1650 at full rated current?

The SRA1650 exhibits a typical forward voltage (V_F) of 0.70 V at I_F = 16 A and T_J = 25°C, as confirmed in the Electrical Specifications table (Version K2103). This value increases with junction temperature - e.g., ~0.58 V at 100°C - and is measured under pulsed conditions (PW = 0.3 ms). Designers must account for this temperature dependence when calculating conduction losses across the full operating range of the SRA1650.

Is the metal tab of the SRA1650 electrically isolated?

No, the metal tab of the SRA1650 is electrically connected to the cathode terminal, as confirmed by the TO-220AC package outline and marking diagram in the Taiwan Semiconductor datasheet. This requires electrical isolation (e.g., mica washer or insulating pad) when mounting to a heatsink that is not at cathode potential. The tab serves as both primary thermal path and active circuit node - a critical layout consideration for safety and EMI in the SRA1650 implementation.

What is the reverse leakage current specification for the SRA1650 at elevated temperature?

At T_J = 100°C and rated V_R = 50 V, the SRA1650 has a maximum reverse leakage current (I_R) of 10 mA, per the Electrical Specifications table (Version K2103). This is significantly higher than its 500 µA rating at 25°C, reflecting expected thermal behavior of Schottky junctions. Designers using the SRA1650 in high-temperature environments must verify that this leakage remains within acceptable limits for standby power budgets and system-level fault thresholds.

SRA1650 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Schottky

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

Current - Average Rectified (Io):: 16A

Voltage - Forward (Vf) (Max) @ If:: 700 mV @ 16 A

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

Reverse Recovery Time (trr):: -

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

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

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

SRA1650 FAQ

1.How can I place an order for SRA1650 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRA1650 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 SRA1650 reliable?

The price and inventory of SRA1650 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRA1650 is usually 5 days.

3.What payment methods are accepted for SRA1650?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRA1650 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRA1650?

SRA1650 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRA1650 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 SRA1650?

For technical support, including SRA1650 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRA1650 requirements.

6.How does Aetrix verify that SRA1650 is sourced from the original manufacturer or authorized distributors?

All SRA1650 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 SRA1650 meets industry standards.

7.What is the process for return or replacement of SRA1650?

All SRA1650 units undergo pre-shipment inspection (PSI). If there is an issue with SRA1650, 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 SRA1650 part is unused and in its original packaging.

Return procedure for SRA1650:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…