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

Taiwan Semiconductor Corporation SRAF1640HC0G

Name: SRAF1640HC0G
Brand: Taiwan Semiconductor Corporation
SKU: SRAF1640HC0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRAF1640HC0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2 Full Pack

Datasheet:: SRAF1640HC0G.pdf

Description:: DIODE SCHOTTKY 40V 16A ITO220AC

Quantity:: RFQ Add To RFQ list

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Inventory:9,370

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Product details

Overview

SRAF1640HC0G from Taiwan Semiconductor is a 16A, 40V AEC-Q101-qualified Schottky barrier rectifier in ITO-220AC package, featuring 0.55V forward voltage at 16A/25°C, 275A surge current capability, and guard ring over-voltage protection-used in automotive-grade DC-DC converters and industrial SMPS.

For engineers reviewing the SRAF1640HC0G datasheet, SRAF1640HC0G pinout, SRAF1640HC0G application, or SRAF1640HC0G equivalent, key selection criteria include V_RRM = 40 V, I_F = 16 A, T_J(max) = 150 °C, R_θJC = 4 °C/W, and AEC-Q101 qualification for under-hood power conversion designs.

Technical Context

This single-die Schottky rectifier employs a guard ring structure to enhance transient over-voltage immunity and supports high-efficiency operation with low conduction loss. Its 0.55 V forward voltage at rated current and 10,000 V/µs dv/dt rating enable stable switching in fast-rise-time topologies.

The ITO-220AC package provides low thermal resistance (R_θJC = 4 °C/W) and meets UL 94V-0 flammability, JESD201 Class 2 whisker resistance, and matte tin plating per J-STD-002-enabling reliable through-hole mounting in thermally demanding environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	40 V - Maximum repetitive reverse voltage; defines safe blocking range in 36–42 V nominal systems
I_F	16 A - Continuous average forward current; supports high-power density rectification without forced cooling
V_F @ 16A, 25°C	0.55 V - Low conduction loss enabling >92% efficiency in 12 V output DC-DC stages
I_FSM	275 A - Non-repetitive surge rating; withstands inrush and fault currents in automotive cold-crank conditions
T_J(max)	150 °C - Extended junction temperature rating allows operation in engine bay or enclosed industrial enclosures
R_θJC	4 °C/W - Thermal resistance from junction to case; enables direct heatsink mounting with minimal thermal interface layers
I_R @ 40 V, 25°C	500 µA - Low leakage ensures minimal standby power loss in always-on subsystems

Pinout & Package

ITO-220AC package: isolated tab (cathode), two leads (anode and cathode), UL 94V-0 molding compound, matte tin-plated terminals, 1.70 g mass, polarity marked on device body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current entry point	Connected to input rail; must be routed with low-inductance path for high di/dt stability
Cathode (Lead 2)	Output current exit point	Connected to output filter capacitor; shares thermal path with isolated metal tab
Metal Tab	Cathode terminal & thermal interface	Electrically tied to cathode; requires insulating pad if mounted to grounded heatsink

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive powertrain and chassis applications per stress test requirements
Guard ring structure	Prevents edge breakdown under transient over-voltage, improving reliability in noisy 12 V systems
Low V_F (0.55 V)	Reduces conduction loss by ~35% vs. comparable 40 V Si diodes, lowering thermal load in compact adapters
High I_FSM (275 A)	Survives 10× rated current surges, supporting robust design margins in unregulated input stages
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally regulated end equipment

Applications

Automotive DC-DC Converters	Industrial SMPS
Use Scenario: Step-down conversion from 12 V battery to 3.3 V/5 V rails in ADAS camera modules and infotainment head units. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or quasi-resonant flyback topology. Use Value: 0.55 V V_F minimizes heat generation in sealed enclosures; AEC-Q101 ensures lifetime reliability at 150 °C junction.	Use Scenario: Output rectification in 48 V to 12 V telecom and factory automation power supplies. IC Role / Device Role / Timing Role: High-current freewheeling diode in active clamp forward converters. Use Value: 275 A I_FSM handles startup surges; 4 °C/W R_θJC enables passive heatsinking in space-constrained DIN-rail mounts.
Laptop Adapters	LED Driver Power Stages
Use Scenario: Secondary-side rectification in compact 65 W GaN-based USB-C PD adapters. IC Role / Device Role / Timing Role: Fast-recovery output diode replacing Si counterparts to reduce losses and size. Use Value: Low V_F improves full-load efficiency; ITO-220AC mechanical robustness supports automated assembly and reflow-compatible lead finish.	Use Scenario: Constant-current regulation stage in outdoor LED streetlight drivers exposed to wide ambient swings. IC Role / Device Role / Timing Role: Bulk rectifier feeding buck controller ICs in high-voltage AC-input LED drivers. Use Value: 150 °C T_J(max) and 500 µA I_R at 25°C ensure stable performance across -40 °C to +85 °C ambient with no derating.

Automotive DC-DC Converters

Industrial SMPS

Use Scenario: Step-down conversion from 12 V battery to 3.3 V/5 V rails in ADAS camera modules and infotainment head units.

IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or quasi-resonant flyback topology.

Use Value: 0.55 V V_F minimizes heat generation in sealed enclosures; AEC-Q101 ensures lifetime reliability at 150 °C junction.

Use Scenario: Output rectification in 48 V to 12 V telecom and factory automation power supplies.

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

Use Value: 275 A I_FSM handles startup surges; 4 °C/W R_θJC enables passive heatsinking in space-constrained DIN-rail mounts.

Laptop Adapters

LED Driver Power Stages

Use Scenario: Secondary-side rectification in compact 65 W GaN-based USB-C PD adapters.

IC Role / Device Role / Timing Role: Fast-recovery output diode replacing Si counterparts to reduce losses and size.

Use Value: Low V_F improves full-load efficiency; ITO-220AC mechanical robustness supports automated assembly and reflow-compatible lead finish.

Use Scenario: Constant-current regulation stage in outdoor LED streetlight drivers exposed to wide ambient swings.

IC Role / Device Role / Timing Role: Bulk rectifier feeding buck controller ICs in high-voltage AC-input LED drivers.

Use Value: 150 °C T_J(max) and 500 µA I_R at 25°C ensure stable performance across -40 °C to +85 °C ambient with no 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-16CTH04-M3	Same ITO-220AC package, 16 A/40 V, V_F = 0.54 V @ 16 A, but not AEC-Q101 qualified	Targeted at commercial/industrial use; lacks automotive stress validation	Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs
ON Semiconductor SB1640	TO-220AC package, same ratings, V_F = 0.57 V, AEC-Q101 qualified, but R_θJC = 5.5 °C/W	Higher thermal resistance limits power density in thermally constrained layouts	Choose when legacy TO-220AC footprint compatibility is mandatory and thermal margin exists

Compared with VS-16CTH04-M3 and SB1640, the SRAF1640HC0G uniquely combines AEC-Q101 qualification, 0.55 V V_F, and 4 °C/W thermal resistance-making it optimal for high-reliability, space-limited automotive and industrial rectification where both qualification and thermal performance are critical.

Availability

SRAF1640HC0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and LED driver power stages requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.

Supply support for SRAF1640HC0G 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 SRAF16xx family was designed specifically for high-efficiency, high-reliability rectification in automotive power systems and industrial switch-mode supplies-emphasizing AEC-Q101 compliance, low thermal resistance, and robust surge handling.

FAQ

What is the maximum junction temperature rating for SRAF1640HC0G?

The SRAF1640HC0G has a maximum junction temperature (T_J(max)) of +150 °C, validated per AEC-Q101 stress testing. This allows continuous operation in under-hood automotive environments and high-ambient industrial settings without derating up to that limit. The SRAF1640HC0G's thermal design leverages its 4 °C/W junction-to-case resistance to maintain safe operating temperatures even at full 16 A load.

Is SRAF1640HC0G pin-compatible with standard ITO-220AC rectifiers?

Yes, the SRAF1640HC0G uses the industry-standard ITO-220AC outline with anode (lead 1), cathode (lead 2), and electrically isolated metal tab tied to cathode. Its mechanical dimensions, mounting hole position, and lead pitch match JEDEC MS-001AC, ensuring drop-in replacement in existing ITO-220AC footprints. The SRAF1640HC0G maintains identical polarity marking and torque specification (0.56 N·m max).

Does SRAF1640HC0G meet halogen-free and RoHS requirements?

Yes, the SRAF1640HC0G complies with both RoHS Directive 2011/65/EU and IEC 61249-2-21 halogen-free standards. Its molding compound contains no brominated flame retardants, chlorine, or fluorine above threshold limits, and all terminations use matte tin plating per J-STD-002. This makes the SRAF1640HC0G suitable for environmentally regulated end equipment including automotive and medical-adjacent systems.

What is the forward voltage of SRAF1640HC0G under typical operating conditions?

The SRAF1640HC0G exhibits a typical forward voltage (V_F) of 0.55 V at 16 A and 25 °C, measured with 0.3 ms pulse width. At 100 °C junction temperature, V_F decreases slightly to approximately 0.52 V due to negative temperature coefficient. This low V_F directly reduces conduction losses in high-current paths, and the SRAF1640HC0G maintains this performance across its full 16 A rating without thermal runaway.

How does the guard ring feature improve reliability in SRAF1640HC0G?

The guard ring in the SRAF1640HC0G mitigates edge breakdown during transient over-voltage events-such as load dump or inductive kickback-by distributing electric field stress away from the active junction periphery. This structural enhancement increases the device's dv/dt rating to 10,000 V/µs and improves long-term reliability in noisy 12 V automotive systems. The SRAF1640HC0G's guard ring is integral to its AEC-Q101 qualification and distinguishes it from non-guarded Schottky rectifiers.

SRAF1640HC0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-2 Full Pack

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 40 V

Current - Average Rectified (Io):: 16A

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 16 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 40 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AC

Operating Temperature - Junction:: -55°C ~ 125°C

SRAF1640HC0G FAQ

1.How can I place an order for SRAF1640HC0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SRAF1640HC0G 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 SRAF1640HC0G reliable?

The price and inventory of SRAF1640HC0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAF1640HC0G is usually 5 days.

3.What payment methods are accepted for SRAF1640HC0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAF1640HC0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRAF1640HC0G?

SRAF1640HC0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRAF1640HC0G 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 SRAF1640HC0G?

For technical support, including SRAF1640HC0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAF1640HC0G requirements.

6.How does Aetrix verify that SRAF1640HC0G is sourced from the original manufacturer or authorized distributors?

All SRAF1640HC0G 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 SRAF1640HC0G meets industry standards.

7.What is the process for return or replacement of SRAF1640HC0G?

All SRAF1640HC0G units undergo pre-shipment inspection (PSI). If there is an issue with SRAF1640HC0G, 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 SRAF1640HC0G part is unused and in its original packaging.

Return procedure for SRAF1640HC0G:

1.Submit a request within 90 days.

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

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