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

Taiwan Semiconductor Corporation SRS1650

Name: SRS1650
Brand: Taiwan Semiconductor Corporation
SKU: SRS1650
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRS1650

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

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

Datasheet:: SRS1650.pdf

Description:: DIODE ARR SCHOTT 50V 16A TO263AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,700

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Product details

Overview

SRS1650 from Taiwan Semiconductor is a 16A, 50V Schottky barrier rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC/DC conversion and SMPS output stages. It features 0.70V forward voltage at 8A/25°C, 150A surge capability, 2°C/W junction-to-case thermal resistance, and operates up to +150°C junction temperature in switching power supplies.

For engineers reviewing the SRS1650 datasheet, SRS1650 pinout, SRS1650 application, or SRS1650 equivalent, key selection criteria include its 50V V_RRM, dual-die configuration, moisture sensitivity level 1 rating, JESD201 Class 2 whisker compliance, and suitability for automated SMT placement in high-reliability power converters.

Technical Context

The SRS1650 is a single-package, dual-die Schottky rectifier optimized for low conduction loss in medium-voltage switching applications. Its 50V repetitive peak reverse voltage and 10mA reverse leakage at 100°C enable stable operation in 48V-output SMPS and industrial DC/DC modules where thermal management and efficiency are critical.

Thermal performance is defined by a 2°C/W junction-to-case resistance and a maximum junction temperature of +150°C, supporting continuous 16A forward current with appropriate heatsinking. The device uses matte tin-plated leads compliant with J-STD-002 and meets UL 94V-0 flammability requirements in its TO-263AB molding compound.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum reverse blocking voltage before breakdown; sets upper limit for output voltage rails in buck or flyback designs
I_F	16 A - Continuous average forward current rating; defines steady-state power handling without derating at 25°C ambient
I_FSM	150 A - Non-repetitive surge current for 8.3ms half-sine; supports inrush and transient overload tolerance
V_F @ 8A, 25°C	0.70 V - Forward voltage drop per diode; directly determines conduction loss and thermal load in high-current paths
R_θJC	2 °C/W - Junction-to-case thermal resistance; enables precise heatsink sizing for 150°C max T_J operation
T_J max	+150 °C - Maximum allowable junction temperature; permits extended operation in thermally constrained enclosures
Package	TO-263AB (D2PAK) - Surface-mount power package with exposed thermal pad; requires PCB copper area for thermal dissipation

Pinout & Package

TO-263AB (D2PAK) package with three terminals: Anode 1, Cathode (common), Anode 2. Exposed metal tab is electrically connected to cathode and serves as primary thermal path to PCB.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1	Input terminal for first Schottky die	Connects to input rail or transformer secondary; polarity marked on top surface
Cathode (Tab)	Common output node for both dies	Electrically and thermally tied to exposed metal tab; must be soldered to large copper pour
Anode 2	Input terminal for second Schottky die	Enables dual-channel or parallel-configured rectification without external wiring

Key Features

Feature	Design Value
Guard ring structure	Improves ruggedness against transient overvoltage events without requiring external snubbers
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow; compatible with standard SMT assembly lines
Dual-die configuration	Provides two independent 16A Schottky paths in one footprint, reducing board space vs. discrete solutions
Halogen-free compound	Meets IEC 61249-2-21; supports RoHS-compliant and environmentally regulated end equipment
JESD201 Class 2 whisker resistance	Ensures long-term reliability of matte tin plating under thermal cycling and storage conditions

Applications

Server Power Supply	Industrial DC/DC Converter
Use Scenario: Secondary-side synchronous rectification in 48V-input, 12V-output server PSUs operating at >200kHz switching frequency. IC Role / Device Role / Timing Role: Schottky rectifier replacing MOSFETs in OR-ing and output rectification; handles bidirectional current during dead-time transitions. Use Value: 0.70V V_F minimizes conduction loss at 16A, while 150A I_FSM withstands load-step surges without degradation.	Use Scenario: Output rectification in isolated 24V-input, 5V/3.3V dual-rail industrial DC/DC modules with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Dual-die Schottky providing independent rectification paths for two output rails in compact layout. Use Value: +150°C T_J max and 2°C/W R_θJC allow full 16A rating in sealed enclosures without forced air cooling.
Telecom Power Adapter	Automotive Infotainment PSU
Use Scenario: High-density AC/DC adapter for telecom base station line cards requiring >90% efficiency at 50W–100W output. IC Role / Device Role / Timing Role: Primary output rectifier in active-clamp forward or LLC resonant converter topology. Use Value: Low 0.70V V_F and 500µA I_R at 25°C reduce no-load and light-load losses critical for Energy Star compliance.	Use Scenario: 12V-to-5V/3.3V point-of-load conversion in automotive infotainment head units with stringent AEC-Q200 alignment expectations. IC Role / Device Role / Timing Role: Schottky rectifier in non-isolated buck converter supplying processor and display subsystems. Use Value: Moisture sensitivity level 1 and JESD201 Class 2 plating ensure robustness through automotive reflow profiles and long-term field operation.

Server Power Supply

Industrial DC/DC Converter

Use Scenario: Secondary-side synchronous rectification in 48V-input, 12V-output server PSUs operating at >200kHz switching frequency.

IC Role / Device Role / Timing Role: Schottky rectifier replacing MOSFETs in OR-ing and output rectification; handles bidirectional current during dead-time transitions.

Use Value: 0.70V V_F minimizes conduction loss at 16A, while 150A I_FSM withstands load-step surges without degradation.

Use Scenario: Output rectification in isolated 24V-input, 5V/3.3V dual-rail industrial DC/DC modules with wide ambient temperature range (-40°C to +85°C).

IC Role / Device Role / Timing Role: Dual-die Schottky providing independent rectification paths for two output rails in compact layout.

Use Value: +150°C T_J max and 2°C/W R_θJC allow full 16A rating in sealed enclosures without forced air cooling.

Telecom Power Adapter

Automotive Infotainment PSU

Use Scenario: High-density AC/DC adapter for telecom base station line cards requiring >90% efficiency at 50W–100W output.

IC Role / Device Role / Timing Role: Primary output rectifier in active-clamp forward or LLC resonant converter topology.

Use Value: Low 0.70V V_F and 500µA I_R at 25°C reduce no-load and light-load losses critical for Energy Star compliance.

Use Scenario: 12V-to-5V/3.3V point-of-load conversion in automotive infotainment head units with stringent AEC-Q200 alignment expectations.

IC Role / Device Role / Timing Role: Schottky rectifier in non-isolated buck converter supplying processor and display subsystems.

Use Value: Moisture sensitivity level 1 and JESD201 Class 2 plating ensure robustness through automotive reflow profiles and long-term field operation.

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	Same 50V V_RRM, 16A I_F, TO-263AB package; 0.68V V_F @ 8A, but only rated to +125°C T_J	Limited to lower ambient temperature environments; unsuitable for sealed industrial enclosures above 75°C ambient	Select when lower forward voltage is prioritized and thermal margin is available
ON Semiconductor MBR1650CT	50V V_RRM, 16A I_F, TO-220AC package; 0.72V V_F @ 8A, +175°C T_J, but higher R_θJC (3.5°C/W)	Requires larger heatsink due to inferior thermal resistance; not surface-mountable	Select when through-hole mounting and extreme junction temperature are required over SMT density

Compared with VS-16CTH05-M3 and MBR1650CT, the SRS1650 uniquely balances 50V rating, 16A capacity, +150°C operation, and TO-263AB SMT compatibility-making it optimal for space-constrained, thermally demanding industrial and telecom power designs.

Availability

SRS1650 is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and adapters requiring stable component supply with consistent parametric performance across production lots.

Supply support for SRS1650 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 industrial, computing, and consumer markets since 1979.

The SRS1650 belongs to TSC's SRS16xx family of high-current Schottky rectifiers engineered specifically for high-efficiency, high-reliability power conversion in compact SMT form factors.

FAQ

What is the maximum junction temperature rating for the SRS1650?

The SRS1650 has a maximum junction temperature (T_J) rating of +150°C, confirmed in the Absolute Maximum Ratings table. This allows sustained 16A operation in thermally constrained environments when paired with adequate PCB copper area and thermal vias. The SRS1650 must not exceed this limit during normal or transient conditions to maintain reliability and parametric stability.

Does the SRS1650 have a guard ring structure, and what benefit does it provide?

Yes, the SRS1650 incorporates a guard ring structure explicitly listed under FEATURES. This design enhances edge termination robustness, improving resistance to voltage transients and localized avalanche breakdown during overvoltage events-reducing need for external protection components in SMPS output stages where the SRS1650 is deployed.

Is the SRS1650 suitable for lead-free reflow soldering processes?

Yes, the SRS1650 uses matte tin-plated leads compliant with J-STD-002 and is rated for lead-free reflow. Its moisture sensitivity level is 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking-fully compatible with standard Pb-free SMT assembly lines used for industrial and telecom power products.

What is the reverse leakage current specification for the SRS1650 at elevated temperature?

At T_J = 100°C and rated V_R, the SRS1650 exhibits a maximum reverse leakage current (I_R) of 10 µA per diode, as specified in the Electrical Specifications table. This low leakage supports stable operation in high-temperature DC/DC converters where thermal runaway or standby power loss must be minimized.

How many Schottky dies are integrated inside the SRS1650 package?

The SRS1650 contains two independent Schottky dies in a single TO-263AB (D2PAK) package, as confirmed under KEY PARAMETERS ("Configuration: Dual dies") and the Pinout & Package section. This dual-die architecture enables separate anode connections (Anode 1 and Anode 2) sharing a common cathode, supporting dual-rail or phase-split rectification without external paralleling.

SRS1650 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:: -

Qualification:: -

Mounting Type:: Surface Mount

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

SRS1650 FAQ

1.How can I place an order for SRS1650 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRS1650 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 SRS1650 reliable?

The price and inventory of SRS1650 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS1650 is usually 5 days.

3.What payment methods are accepted for SRS1650?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS1650 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRS1650?

SRS1650 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRS1650 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 SRS1650?

For technical support, including SRS1650 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS1650 requirements.

6.How does Aetrix verify that SRS1650 is sourced from the original manufacturer or authorized distributors?

All SRS1650 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 SRS1650 meets industry standards.

7.What is the process for return or replacement of SRS1650?

All SRS1650 units undergo pre-shipment inspection (PSI). If there is an issue with SRS1650, 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 SRS1650 part is unused and in its original packaging.

Return procedure for SRS1650:

1.Submit a request within 90 days.

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

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