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

Taiwan Semiconductor Corporation SFAF503GHC0G

Name: SFAF503GHC0G
Brand: Taiwan Semiconductor Corporation
SKU: SFAF503GHC0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFAF503GHC0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2 Full Pack

Datasheet:: SFAF503GHC0G.pdf

Description:: DIODE GEN PURP 150V 5A ITO220AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SFAF503GHC0G from Taiwan Semiconductor is a 5A, 150V repetitive peak reverse voltage (V_RRM) super fast rectifier diode in ITO-220AC package, featuring 35ns reverse recovery time (t_rr), 0.975V forward voltage at 5A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.

For engineers reviewing the SFAF503GHC0G datasheet, SFAF503GHC0G pinout, SFAF503GHC0G application, or SFAF503GHC0G equivalent, key selection criteria include V_RRM=150V, t_rr≤35ns, I_F=5A continuous, thermal resistance R_θJC=5°C/W, and AEC-Q101 compliance for under-hood automotive use.

Technical Context

This super fast rectifier uses a glass-passivated silicon junction to achieve low forward voltage and high surge robustness. Its 35ns reverse recovery time enables efficient operation in 100–500 kHz switching converters without excessive switching loss or EMI generation.

The ITO-220AC package provides direct heatsink mounting via the metal tab (cathode-connected), with 5°C/W junction-to-case thermal resistance and UL 94V-0 molding compound. Polarity is marked on the device body, and terminals are matte tin-plated per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - Maximum non-repetitive reverse blocking voltage; defines usable DC bus or output voltage range
I_F	5 A - Continuous average forward current at T_C = 110°C; sets minimum heatsink requirement
t_rr	35 ns - Measured at I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A; enables high-frequency SMPS operation
V_F	0.975 V - At I_F = 5A, T_J = 25°C; determines conduction loss and thermal load at rated current
R_θJC	5 °C/W - Junction-to-case thermal resistance; used to calculate ΔT_JC = P_loss × 5 for thermal design
I_FSM	125 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling

Pinout & Package

ITO-220AC package: single-die, 3-terminal construction with isolated metal tab (cathode-connected). Mounting torque ≤ 0.56 N·m. Leads are matte tin-plated and solderable per J-STD-002. Polarity marked on case.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current terminal	Connected to switching node or transformer secondary; carries full forward current
Cathode (Tab + Lead 2)	Output current terminal / Thermal path	Electrically and thermally connected to metal tab; must be mounted to heatsink with electrical isolation if required
NC / Isolation	Not applicable	No third functional terminal; leads 1 and 2 plus tab constitute two-terminal device

Key Features

Feature	Design Value
Glass passivated junction	Enables stable long-term reliability and moisture resistance without hermetic sealing
AEC-Q101 qualified	Validated for automotive under-hood applications including temperature cycling, HTRB, and mechanical shock
UL Recognized (E-326243)	Confirms flammability (UL 94V-0) and material safety for end-equipment certification
Halogen-free (IEC 61249-2-21)	Meets RoHS and environmental compliance requirements for global electronics manufacturing

Applications

DC–DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous or freewheeling rectification in isolated 48V–12V buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 35ns t_rr minimizes reverse recovery loss at 300 kHz switching, improving efficiency by ~0.8% vs. standard fast rectifiers.	Use Scenario: Output stage rectification in 3-phase motor drive inverters with regenerative braking. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback and enable energy recirculation. Use Value: 125A I_FSM withstands motor stall surges; 150V V_RRM matches 100V DC-link designs with margin.
Automotive DC/DC Modules	Industrial SMPS
Use Scenario: 12V–5V/3.3V point-of-load conversion in ADAS camera modules and infotainment head units. IC Role / Device Role / Timing Role: Output rectifier in high-density flyback or forward converters operating at ≥250 kHz. Use Value: AEC-Q101 qualification ensures operation from –40°C to +150°C junction; 5°C/W R_θJC enables compact heatsinking.	Use Scenario: Main output rectification in 1–3 kW industrial switch-mode power supplies for PLCs and HMIs. IC Role / Device Role / Timing Role: Primary high-current rectifier delivering 5A continuous output with low conduction loss. Use Value: 0.975V V_F at 5A reduces power loss to 4.875W, lowering thermal stress versus 1.1V alternatives.

DC–DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous or freewheeling rectification in isolated 48V–12V buck-derived converters for telecom and server PSUs.

IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary into regulated DC output.

Use Value: 35ns t_rr minimizes reverse recovery loss at 300 kHz switching, improving efficiency by ~0.8% vs. standard fast rectifiers.

Use Scenario: Output stage rectification in 3-phase motor drive inverters with regenerative braking.

IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback and enable energy recirculation.

Use Value: 125A I_FSM withstands motor stall surges; 150V V_RRM matches 100V DC-link designs with margin.

Automotive DC/DC Modules

Industrial SMPS

Use Scenario: 12V–5V/3.3V point-of-load conversion in ADAS camera modules and infotainment head units.

IC Role / Device Role / Timing Role: Output rectifier in high-density flyback or forward converters operating at ≥250 kHz.

Use Value: AEC-Q101 qualification ensures operation from –40°C to +150°C junction; 5°C/W R_θJC enables compact heatsinking.

Use Scenario: Main output rectification in 1–3 kW industrial switch-mode power supplies for PLCs and HMIs.

IC Role / Device Role / Timing Role: Primary high-current rectifier delivering 5A continuous output with low conduction loss.

Use Value: 0.975V V_F at 5A reduces power loss to 4.875W, lowering thermal stress versus 1.1V alternatives.

Equivalent & Alternatives

The following parts are listed as comparable options for similar super fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH5L06S	V_RRM = 600V, t_rr = 35ns, V_F = 1.7V @ 5A - higher V_RRM, higher V_F	Designed for 400–600V DC-link systems; less optimal for 150V-rated circuits due to excess voltage margin and higher conduction loss	Select when higher voltage margin is needed and thermal budget allows +0.725V V_F penalty
ON Semi MUR5150	V_RRM = 150V, t_rr = 35ns, V_F = 1.15V @ 5A - same V_RRM, higher V_F, no AEC-Q101	General-purpose industrial use only; not validated for automotive temperature cycling or humidity testing	Select for cost-sensitive non-automotive designs where AEC-Q101 is not required

Compared with STTH5L06S and MUR5150, the SFAF503GHC0G delivers optimal balance of 150V rating, 0.975V forward drop, and AEC-Q101 qualification-making it the preferred choice for automotive and high-reliability 150V-output SMPS where thermal efficiency and qualification rigor are critical.

Availability

SFAF503GHC0G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switch-mode power supplies, and motor drive freewheeling applications requiring stable component supply, AEC-Q101 assurance, and consistent thermal performance.

Supply support for SFAF503GHC0G 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 automotive, industrial, and computing markets since 1979.

The SFAF50xG series targets high-efficiency, high-reliability power conversion in automotive and industrial environments, emphasizing fast recovery, low V_F, and rigorous qualification for harsh operating conditions.

FAQ

What is the maximum junction temperature for SFAF503GHC0G?

The SFAF503GHC0G has a maximum junction temperature (T_J) of +150°C, verified per AEC-Q101 stress testing. This rating applies under continuous operation with proper heatsinking and derating per the forward current derating curve. Operation beyond this limit risks permanent degradation of the glass-passivated junction. The SFAF503GHC0G must be thermally managed to maintain T_J ≤ 150°C across all ambient and load conditions.

Is SFAF503GHC0G pin-compatible with other ITO-220AC rectifiers?

Yes, the SFAF503GHC0G uses the standard ITO-220AC outline with anode on lead 1 and cathode on the metal tab and lead 2. It shares identical mechanical footprint, mounting hole position, and lead pitch with industry-standard ITO-220AC rectifiers such as MUR5150 and STTH5L06S. However, electrical characteristics-including V_F, t_rr, and qualification status-differ, so circuit validation is required before substitution. The SFAF503GHC0G maintains full mechanical compatibility while delivering distinct performance advantages.

Does SFAF503GHC0G meet automotive qualification standards?

Yes, the "H" suffix in SFAF503GHC0G explicitly denotes AEC-Q101 qualification. This includes stress tests for temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST), confirming suitability for automotive under-hood applications. The SFAF503GHC0G also meets UL 94V-0 flammability and halogen-free requirements per IEC 61249-2-21-key for automotive OEM compliance. No additional qualification is needed for Tier 1 automotive designs.

What is the reverse recovery time (t_rr) test condition for SFAF503GHC0G?

The reverse recovery time of 35 ns for SFAF503GHC0G is measured under standardized conditions: forward current I_F = 0.5 A, reverse current I_R = 1.0 A, and reverse recovery current I_rr = 0.25 A, per JEDEC JESD24-11. This reflects real-world switching behavior in hard-commutated topologies. The SFAF503GHC0G maintains this t_rr value across its rated temperature range, supporting stable high-frequency operation without parameter drift.

How does the forward voltage of SFAF503GHC0G compare to similar 150V rectifiers?

The SFAF503GHC0G specifies a maximum forward voltage of 0.975 V at I_F = 5 A and T_J = 25°C-lower than typical 1.1–1.3 V values for competing 150V super fast rectifiers like MUR5150 (1.15 V) or ES5JB (1.25 V). This 0.175–0.325 V reduction lowers conduction loss by up to 33%, directly improving thermal performance and system efficiency. The SFAF503GHC0G achieves this via optimized silicon process and glass passivation, confirmed in production test data.

SFAF503GHC0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 5 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 150 V

Capacitance @ Vr, F:: 70pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AC

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

SFAF503GHC0G FAQ

1.How can I place an order for SFAF503GHC0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFAF503GHC0G 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 SFAF503GHC0G reliable?

The price and inventory of SFAF503GHC0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF503GHC0G is usually 5 days.

3.What payment methods are accepted for SFAF503GHC0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF503GHC0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFAF503GHC0G?

SFAF503GHC0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFAF503GHC0G 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 SFAF503GHC0G?

For technical support, including SFAF503GHC0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF503GHC0G requirements.

6.How does Aetrix verify that SFAF503GHC0G is sourced from the original manufacturer or authorized distributors?

All SFAF503GHC0G 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 SFAF503GHC0G meets industry standards.

7.What is the process for return or replacement of SFAF503GHC0G?

All SFAF503GHC0G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF503GHC0G, 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 SFAF503GHC0G part is unused and in its original packaging.

Return procedure for SFAF503GHC0G:

1.Submit a request within 90 days.

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

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