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

Taiwan Semiconductor Corporation SFF507G

Name: SFF507G
Brand: Taiwan Semiconductor Corporation
SKU: SFF507G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFF507G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-220-3 Full Pack, Isolated Tab

Datasheet:: SFF507G.pdf

Description:: DIODE ARRAY GP 500V 5A ITO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,095

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Product details

Overview

SFF507G from Taiwan Semiconductor is a 500 V, 5 A super fast recovery rectifier diode in ITO-220AB package, featuring 35 ns reverse recovery time, 1.70 V forward voltage at 2.5 A/25°C, and 70 A surge capability - deployed in DC-DC converters and freewheeling paths in automotive power supplies.

For engineers reviewing the SFF507G datasheet, SFF507G pinout, SFF507G application, or SFF507G equivalent, key selection criteria include V_RRM = 500 V, I_F = 5 A, t_rr = 35 ns, V_F = 1.70 V, and thermal resistance R_θJC = 5.5 °C/W for high-efficiency switching power designs.

Technical Context

The SFF507G integrates dual die construction in a single ITO-220AB package with isolated cathodes, enabling independent use of each diode in bridge or dual-output configurations. Its super fast recovery (t_rr ≤ 35 ns) and low Q_rr minimize switching losses in high-frequency SMPS operating up to 100 kHz.

Rated for TJ = –55°C to +150°C and qualified to JESD201 Class 2 whisker standard, the SFF507G supports automotive-grade reliability when paired with AEC-Q101-qualified variants (e.g., SFF507GH). Junction-to-case thermal resistance of 5.5 °C/W enables direct heatsink mounting without thermal interface material in moderate-power applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	500 V - blocks up to 500 V repetitive reverse voltage, suitable for 400 V DC bus systems with margin
I_F	5 A continuous - supports sustained output current in 60–100 W DC-DC converters
t_rr	35 ns - enables efficient operation in 50–100 kHz switching topologies with low turn-off loss
V_F	1.70 V @ 2.5 A, 25°C - contributes ~4.25 W conduction loss per diode at rated current
R_θJC	5.5 °C/W - allows ~18 W power dissipation with 100°C case temperature rise above ambient
C_J	50 pF @ 4 V - limits capacitive coupling noise in high-dv/dt gate-drive or snubber circuits
I_FSM	70 A @ 8.3 ms - withstands inrush and short-circuit surge events in industrial power supplies

Pinout & Package

Package: ITO-220AB - insulated thermoplastic outline with integral metal tab, UL 94V-0 rated molding compound, matte tin-plated leads, 1.82 g mass, and 0.56 N·m maximum mounting torque.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1 (A1)	Input terminal for first diode	Connected to high-side switch node in freewheeling path or positive rail in half-wave rectification
Cathode 1 (K1)	Output terminal for first diode	Feeds load or filter capacitor; electrically isolated from K2 for dual-channel operation
Anode 2 (A2)	Input terminal for second diode	Enables independent connection to alternate switching node or auxiliary supply path
Cathode 2 (K2)	Output terminal for second diode	Provides separate return path; polarity marked on device body per ITO-220AB marking diagram
Tab (Case)	Thermal path / Electrical isolation	Electrically isolated metal tab serves as primary heat sink interface; no internal electrical connection

Key Features

Feature	Design Value
Super fast recovery (t_rr)	35 ns ensures minimal tail current and reduced EMI in hard-switched 50–100 kHz converters
Dual-die configuration	Two independent 500 V/5 A diodes in one ITO-220AB package reduce board area vs. discrete solutions
Low forward voltage	V_F = 1.70 V @ 2.5 A lowers conduction loss by ~12% vs. standard FRDs with V_F ≥ 1.9 V
High surge rating	I_FSM = 70 A supports robustness against line transients and startup surges in 24–48 V systems
Thermal performance	R_θJC = 5.5 °C/W enables >15 W dissipation with passive heatsinking in space-constrained enclosures

Applications

Automotive DC-DC Converter	Industrial SMPS Output Stage
Use Scenario: 12 V to 48 V bidirectional DC-DC converter in 48 V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost stage, conducting during low-side switch off-time. Use Value: 35 ns t_rr and 500 V V_RRM prevent cross-conduction losses and support 400 V transient clamping on 48 V bus.	Use Scenario: Secondary-side rectification in 200 W telecom-style AC-DC power supply. IC Role / Device Role / Timing Role: Output rectifier in center-tapped full-wave configuration with active clamp. Use Value: Dual-die layout allows independent cathode routing to reduce ground loop inductance and improve dynamic response.
UPS Hold-up Circuit	Motor Drive Freewheel Path
Use Scenario: Energy hold-up diode in 3 kVA online UPS maintaining DC link during AC input dropout. IC Role / Device Role / Timing Role: Unidirectional energy transfer path from bulk capacitor to inverter stage during grid failure. Use Value: 70 A I_FSM sustains 20 ms overload pulses without degradation, extending backup window integrity.	Use Scenario: Freewheeling path for 3-phase BLDC motor drive with 48 V nominal bus. IC Role / Device Role / Timing Role: Clamp inductive kickback from phase windings during PWM dead-time intervals. Use Value: 1.70 V V_F reduces conduction loss by 0.45 W per diode vs. 1.9 V alternatives, lowering thermal stress in sealed enclosures.

Automotive DC-DC Converter

Industrial SMPS Output Stage

Use Scenario: 12 V to 48 V bidirectional DC-DC converter in 48 V mild-hybrid vehicle architecture.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost stage, conducting during low-side switch off-time.

Use Value: 35 ns t_rr and 500 V V_RRM prevent cross-conduction losses and support 400 V transient clamping on 48 V bus.

Use Scenario: Secondary-side rectification in 200 W telecom-style AC-DC power supply.

IC Role / Device Role / Timing Role: Output rectifier in center-tapped full-wave configuration with active clamp.

Use Value: Dual-die layout allows independent cathode routing to reduce ground loop inductance and improve dynamic response.

UPS Hold-up Circuit

Motor Drive Freewheel Path

Use Scenario: Energy hold-up diode in 3 kVA online UPS maintaining DC link during AC input dropout.

IC Role / Device Role / Timing Role: Unidirectional energy transfer path from bulk capacitor to inverter stage during grid failure.

Use Value: 70 A I_FSM sustains 20 ms overload pulses without degradation, extending backup window integrity.

Use Scenario: Freewheeling path for 3-phase BLDC motor drive with 48 V nominal bus.

IC Role / Device Role / Timing Role: Clamp inductive kickback from phase windings during PWM dead-time intervals.

Use Value: 1.70 V V_F reduces conduction loss by 0.45 W per diode vs. 1.9 V alternatives, lowering thermal stress in sealed enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH5L06	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.75 V @ 2.5 A, TO-220AC package (non-isolated tab)	Non-isolated tab requires insulating washer; higher V_F increases conduction loss by 0.05 V	Select when 600 V blocking margin is required and mechanical isolation is managed externally
ON Semi MUR560	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.85 V @ 2.5 A, TO-220AC package	Higher V_F and non-isolated tab increase thermal design complexity and conduction loss	Prefer only if legacy BOM mandates ON Semi sourcing and 600 V rating is mandatory

Compared with STTH5L06 and MUR560, the SFF507G offers electrically isolated ITO-220AB packaging, lower V_F, and optimized thermal resistance - delivering better system-level efficiency and simplified heatsink integration in space-constrained automotive and industrial power modules.

Availability

SFF507G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS output stages, and UPS hold-up circuits requiring stable component supply, long-term lifecycle assurance, and traceable green-compliant sourcing.

Supply support for SFF507G 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 automotive, industrial, and consumer markets since 1979.

The SFF507G belongs to TSC's SFF501G–SFF508G super fast rectifier family, engineered specifically for high-efficiency, high-reliability switching power conversion where fast recovery, low conduction loss, and rugged surge handling are critical.

FAQ

What is the peak repetitive reverse voltage rating of the SFF507G?

The SFF507G has a peak repetitive reverse voltage (V_RRM) rating of 500 V, verified per the manufacturer's absolute maximum ratings table. This value defines the maximum reverse-biased voltage the device can block continuously without breakdown. The SFF507G is part of the SFF501G–SFF508G series where "507" directly indicates the 500 V rating, and it must not be operated beyond this limit under normal conditions. Derating is recommended for reliability in high-temperature or high-humidity environments.

Does the SFF507G have an electrically isolated tab?

Yes, the SFF507G uses the ITO-220AB package, which features an electrically isolated metal tab. Unlike standard TO-220AC devices, the tab is internally insulated from all terminals, allowing direct mounting to a common heatsink without additional insulation hardware. This isolation is confirmed in the mechanical data section and supported by the "ITO" prefix (Insulated TO) in the package designation. The SFF507G tab is rated for dielectric strength per UL Recognized File #E-326243.

What is the forward voltage of the SFF507G at 5 A and 100°C junction temperature?

The SFF507G datasheet specifies V_F = 1.70 V at I_F = 2.5 A and T_J = 25°C. At 5 A and 100°C, V_F increases due to positive temperature coefficient and higher current density; typical curves (Fig.4) show ~1.95–2.05 V under those conditions. This elevated V_F directly impacts conduction loss calculation and must be used in thermal modeling for 5 A continuous operation. The SFF507G's dual-die structure helps distribute thermal load across the package.

Is the SFF507G AEC-Q101 qualified?

The base SFF507G is not AEC-Q101 qualified; however, the AEC-Q101 variant is designated SFF507GH per the ordering information table. The "H" suffix explicitly denotes qualification to AEC-Q101 stress test requirements for discrete semiconductors. For automotive applications requiring qualification evidence, only SFF507GH should be selected. The SFF507G shares identical electrical and thermal specs but lacks the extended reliability testing documentation required for automotive grade deployment.

How does the SFF507G compare to the SFF506G in terms of reverse recovery performance?

The SFF507G and SFF506G share identical reverse recovery time (t_rr) of ≤35 ns per the electrical specifications table, as both belong to the same high-speed group (SFF505G–SFF508G). However, the SFF507G exhibits lower junction capacitance (C_J = 50 pF vs. 70 pF for SFF501G–SFF504G), contributing to faster voltage transition and reduced switching noise. This makes the SFF507G preferable in high-dv/dt applications such as active clamp flyback or resonant LLC secondary rectification where C_J directly affects ringing amplitude.

SFF507G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3 Full Pack, Isolated Tab

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 500 V

Current - Average Rectified (Io) (per Diode):: 5A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 2.5 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 500 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AB

SFF507G FAQ

1.How can I place an order for SFF507G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFF507G 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 SFF507G reliable?

The price and inventory of SFF507G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF507G is usually 5 days.

3.What payment methods are accepted for SFF507G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF507G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFF507G?

SFF507G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFF507G 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 SFF507G?

For technical support, including SFF507G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF507G requirements.

6.How does Aetrix verify that SFF507G is sourced from the original manufacturer or authorized distributors?

All SFF507G 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 SFF507G meets industry standards.

7.What is the process for return or replacement of SFF507G?

All SFF507G units undergo pre-shipment inspection (PSI). If there is an issue with SFF507G, 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 SFF507G part is unused and in its original packaging.

Return procedure for SFF507G:

1.Submit a request within 90 days.

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

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