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

Taiwan Semiconductor Corporation SRS1690

Name: SRS1690
Brand: Taiwan Semiconductor Corporation
SKU: SRS1690
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRS1690

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

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

Datasheet:: SRS1690.pdf

Description:: DIODE ARR SCHOTT 90V 16A TO263AB

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Product details

Overview

SRS1690 from Taiwan Semiconductor is a 16A, 90V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, featuring dual-die construction, 150A surge capability, 0.90V forward voltage at 8A/25°C, and 100µA reverse leakage at 25°C. It serves as a high-efficiency output rectifier in DC-DC converters and SMPS secondary-side circuits.

For engineers reviewing the SRS1690 datasheet, SRS1690 pinout, SRS1690 application, or SRS1690 equivalent, key selection factors include its 90V VRRM rating, thermal resistance of 2°C/W (junction-to-case), 125°C maximum junction temperature, low VF for reduced conduction loss, and RoHS/halogen-free compliance for industrial power designs.

Technical Context

The SRS1690 employs dual Schottky die in a single TO-263AB package with common-cathode configuration, enabling high-current rectification with minimized forward drop. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability requirements.

Thermally, it delivers R_θJC = 2°C/W and supports continuous operation up to 125°C junction temperature (derated above 25°C ambient), with surge capability rated at 150A for 8.3ms half-sine wave under rated load.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	90 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines usable input/output voltage range in buck or flyback outputs.
IF	16 A - Continuous average forward current rating at case temperature ≤ 125°C; determines steady-state power handling capacity.
VF @ 8A, 25°C	0.90 V - Forward voltage drop per diode; directly impacts conduction loss (P_cond ≈ I_F × V_F) and thermal design margin.
IR @ 90V, 25°C	100 µA - Reverse leakage current per diode; critical for standby power loss and high-impedance sensing accuracy.
IFSM	150 A - Non-repetitive peak surge current; enables robustness against inrush or transient overload in power supplies.
R_θJC	2 °C/W - Junction-to-case thermal resistance; allows direct heatsink thermal modeling without PCB trace resistance assumptions.
T_J max	125 °C - Maximum allowable junction temperature; sets upper limit for thermal design and derating curves.

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, single-ended anode-cathode configuration with exposed cathode tab for thermal and electrical connection. Molding compound meets UL 94V-0; terminals are matte tin-plated.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input terminal for forward conduction path	Connected to switching node or transformer secondary; carries full load current during on-state.
Cathode (Tab + Lead 2)	Common output terminal (dual-die cathode tie)	Electrically and thermally tied to heatsink; serves as main return path and primary thermal interface.

Key Features

Feature	Design Value
Dual-die Schottky construction	Enables 16A continuous current with shared cathode thermal path, improving power density vs. single-die alternatives.
Guard ring overvoltage protection	Increases ruggedness against voltage transients and edge-rate-induced avalanche, extending reliability in unregulated inputs.
Moisture sensitivity level 1 (J-STD-020)	Eliminates bake requirement prior to reflow; compatible with standard SMT assembly lines without special handling.
RoHS and halogen-free (IEC 61249-2-21)	Meets global environmental compliance mandates for industrial and consumer end equipment without performance trade-offs.
150A IFSM surge rating	Withstands repeated cold-start surges in AC-DC adapters and telecom power modules without degradation.

Applications

Server VRM Output Rectification	Industrial DC-DC Converter
Use Scenario: High-current, high-frequency synchronous rectification replacement in 48V-to-12V server VRMs. IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFETs where gate drive complexity or body diode conduction loss dominates. Use Value: 0.90V VF reduces conduction loss by ~15% vs. comparable 100V Schottkys with VF > 1.0V, lowering thermal stress on heatsinks.	Use Scenario: Secondary-side rectification in isolated 24V-input industrial DC-DC modules powering PLC I/O. IC Role / Device Role / Timing Role: Uncontrolled rectifier in forward or flyback topology, delivering regulated 5V/3.3V outputs. Use Value: 125°C T_J max and 2°C/W R_θJC support operation in sealed enclosures without forced air cooling.
Telecom Power Supply	LED Driver Secondary Side
Use Scenario: Output rectification in 36–72V telecom -48V DC input power supplies meeting NEBS Level 3. IC Role / Device Role / Timing Role: High-reliability freewheeling diode in active clamp forward converters. Use Value: Guard ring and 150A IFSM ensure survival during lightning-induced line surges and hot-swap events.	Use Scenario: Constant-current LED string rectification in outdoor signage drivers operating at 90V bus. IC Role / Device Role / Timing Role: Isolated secondary-side rectifier feeding constant-current regulator ICs. Use Value: 90V VRRM matches typical LED string open-circuit voltage, eliminating need for series stacking or voltage derating.

Server VRM Output Rectification

Industrial DC-DC Converter

Use Scenario: High-current, high-frequency synchronous rectification replacement in 48V-to-12V server VRMs.

IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFETs where gate drive complexity or body diode conduction loss dominates.

Use Value: 0.90V VF reduces conduction loss by ~15% vs. comparable 100V Schottkys with VF > 1.0V, lowering thermal stress on heatsinks.

Use Scenario: Secondary-side rectification in isolated 24V-input industrial DC-DC modules powering PLC I/O.

IC Role / Device Role / Timing Role: Uncontrolled rectifier in forward or flyback topology, delivering regulated 5V/3.3V outputs.

Use Value: 125°C T_J max and 2°C/W R_θJC support operation in sealed enclosures without forced air cooling.

Telecom Power Supply

LED Driver Secondary Side

Use Scenario: Output rectification in 36–72V telecom -48V DC input power supplies meeting NEBS Level 3.

IC Role / Device Role / Timing Role: High-reliability freewheeling diode in active clamp forward converters.

Use Value: Guard ring and 150A IFSM ensure survival during lightning-induced line surges and hot-swap events.

Use Scenario: Constant-current LED string rectification in outdoor signage drivers operating at 90V bus.

IC Role / Device Role / Timing Role: Isolated secondary-side rectifier feeding constant-current regulator ICs.

Use Value: 90V VRRM matches typical LED string open-circuit voltage, eliminating need for series stacking or voltage derating.

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-16CTQ090	Same 90V VRRM, 16A IF, TO-263AB package; VF = 0.82V @ 8A (lower), IR = 200µA @ 90V (higher)	Better efficiency at light load due to lower VF, but higher leakage may increase standby loss in always-on systems	Prefer VS-16CTQ090 when optimizing for light-load efficiency; prefer SRS1690 when minimizing standby current is critical
ON Semiconductor SB1690	Identical 90V/16A rating, TO-263AB; VF = 0.92V @ 8A, IR = 80µA @ 90V, R_θJC = 2.2°C/W	Lower leakage than SRS1690 but slightly higher VF and thermal resistance	Choose SB1690 if leakage budget is tighter than 100µA; choose SRS1690 for better thermal coupling to heatsink

Compared with VS-16CTQ090 and SB1690, the SRS1690 offers the optimal balance of low leakage (100µA), moderate VF (0.90V), and best-in-class thermal resistance (2°C/W), making it especially suitable for thermally constrained, medium-to-heavy load industrial power supplies.

Availability

SRS1690 is available at Aetrix Electronics and suitable for switching mode power supplies, DC-DC converters, and AC adapters requiring stable component supply, long-term manufacturability, and RoHS-compliant Schottky rectification.

Supply support for SRS1690 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.

The SRS1690 belongs to TSC's SRS16xx family of high-current Schottky rectifiers designed specifically for high-efficiency, high-reliability secondary-side power conversion in industrial, telecom, and computing power supplies.

FAQ

What is the maximum junction temperature rating for the SRS1690?

The SRS1690 has a maximum junction temperature (T_J) rating of 125°C under continuous operation. This value is specified in the Absolute Maximum Ratings table and applies across the full operating current range when case temperature is maintained within thermal limits. Derating is required above 25°C ambient, per the Forward Current Derating Curve in the SRS1690 datasheet.

Does the SRS1690 have a common-cathode configuration?

Yes, the SRS1690 uses a dual-die common-cathode configuration in its TO-263AB package. Both Schottky dies share the same cathode terminal - implemented via the exposed metal tab and lead 2 - enabling parallel conduction paths while maintaining a single output node. This is confirmed in the "Configuration" field and thermal/mechanical diagrams of the SRS1690 datasheet.

What is the forward voltage specification for the SRS1690 at 8A and 100°C junction temperature?

The SRS1690 datasheet specifies forward voltage only at T_J = 25°C (0.90V max at 8A). No typ/max VF value is provided at 100°C; however, the Typical Forward Characteristics curve (Fig.4) shows VF increases to approximately 0.75–0.80V at 8A and 100°C. Designers should use the 25°C value for worst-case conduction loss calculation unless performing detailed thermal simulation.

Is the SRS1690 suitable for use in automotive applications?

The SRS1690 is not qualified to AEC-Q101 or automotive-grade reliability standards. While its 125°C T_J max and robust surge rating may support some under-hood auxiliary power functions, Taiwan Semiconductor explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications" - and automotive safety-critical systems fall under this exclusion. For automotive use, consult TSC's AEC-Q101-certified rectifier portfolio.

What packaging and reel quantity is available for the SRS1690?

The SRS1690 is supplied in TO-263AB (D2PAK) package on tape-and-reel format, with 800 units per reel. This is specified in the Ordering Information section of the SRS1690 datasheet. The tape meets EIA-481 standards, and the reels are compatible with standard pick-and-place equipment for automated SMT assembly.

SRS1690 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):: 90 V

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

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 8 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 90 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

SRS1690 FAQ

1.How can I place an order for SRS1690 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRS1690 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 SRS1690 reliable?

The price and inventory of SRS1690 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS1690 is usually 5 days.

3.What payment methods are accepted for SRS1690?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS1690 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRS1690?

SRS1690 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRS1690 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 SRS1690?

For technical support, including SRS1690 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS1690 requirements.

6.How does Aetrix verify that SRS1690 is sourced from the original manufacturer or authorized distributors?

All SRS1690 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 SRS1690 meets industry standards.

7.What is the process for return or replacement of SRS1690?

All SRS1690 units undergo pre-shipment inspection (PSI). If there is an issue with SRS1690, 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 SRS1690 part is unused and in its original packaging.

Return procedure for SRS1690:

1.Submit a request within 90 days.

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

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