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

Taiwan Semiconductor Corporation SF27GHR0G

Name: SF27GHR0G
Brand: Taiwan Semiconductor Corporation
SKU: SF27GHR0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF27GHR0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SF27GHR0G.pdf

Description:: DIODE GEN PURP 500V 2A DO204AC

Quantity:: RFQ Add To RFQ list

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Inventory:8,631

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Product details

Overview

SF27GHR0G from Taiwan Semiconductor is a 2 A, 500 V super fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 1.70 V forward voltage at 2 A and 35 ns reverse recovery time, used for freewheeling and switching-mode power supply output rectification in automotive-grade DC-DC converters.

For engineers reviewing the SF27GHR0G datasheet, SF27GHR0G pinout, SF27GHR0G application, or SF27GHR0G equivalent, key selection criteria include its AEC-Q101 qualification, 500 V repetitive peak reverse voltage, 50 A surge capability, 150 °C max junction temperature, and low 20 pF junction capacitance at 1 MHz and 4 V reverse bias.

Technical Context

This device operates as a single-die, unidirectional super fast rectifier with glass-passivated junction for enhanced reliability. Its 35 ns trr and 1.70 V VF at 2 A enable high-frequency switching efficiency in flyback and forward converter topologies where low conduction and switching losses are critical.

The SF27GHR0G is thermally rated for 150 °C junction operation with R_θJA = 65 °C/W and R_θJC = 16 °C/W, supporting robust thermal management in compact industrial and automotive power supplies without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	500 V - supports input/output isolation up to 500 V DC in offline SMPS and battery-fed inverters
I_F	2 A continuous - delivers stable output current in 10–25 W DC-DC modules
I_FSM	50 A (8.3 ms half-sine) - withstands startup surges and transient overloads without failure
V_F	1.70 V @ 2 A, 25°C - reduces conduction loss to ~3.4 W per diode in high-current paths
t_rr	35 ns - minimizes switching loss and EMI in 100–500 kHz converters
C_J	20 pF @ 1 MHz, 4 V - limits capacitive coupling noise in high-dV/dt gate-drive or snubber circuits
T_J max	150 °C - enables operation in under-hood automotive environments and sealed industrial enclosures

Pinout & Package

DO-204AC (DO-15) axial-leaded package with cathode indicated by band; leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point during forward conduction	Connected to lower-potential node (e.g., transformer secondary center-tap or switch node)
Cathode	Current exit point during forward conduction	Connected to output rail or filter capacitor positive; marked by visible band

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive power electronics requiring zero-failure reliability over 15-year service life
Glass passivated junction	Prevents moisture ingress and metallization corrosion in humid or chemically aggressive environments
Low V_F and t_rr	Enables >92% efficiency in 200 kHz flyback converters at full load without heatsinking
RoHS + halogen-free	Complies with IEC 61249-2-21 and EU ELV directives for end-of-life recycling and emissions control

Applications

Automotive DC-DC Converters	Industrial SMPS Output Rectification
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in ADAS camera modules and infotainment head units. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: AEC-Q101 rating ensures compliance with ISO/TS 16949; 500 V V_RRM accommodates load-dump transients up to ±120 V.	Use Scenario: Secondary-side rectification in 24 V input, 12 V/5 A industrial power supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode across relay coils and motor drivers, plus main output rectifier. Use Value: 35 ns t_rr prevents cross-conduction loss in high-frequency PWM-driven loads; 50 A I_FSM handles inductive kickback safely.
UPS Inverter Stage	LED Driver Secondary Rectification
Use Scenario: Bidirectional DC link clamping and freewheeling in 48 V battery-backed UPS inverters. IC Role / Device Role / Timing Role: Clamp diode in H-bridge output stage and freewheel path during dead-time. Use Value: 150 °C T_J max allows operation at ambient up to 85 °C inside enclosed UPS cabinets; 20 pF C_J suppresses high-frequency ringing.	Use Scenario: Constant-current output rectification in isolated 36 V LED string drivers for street lighting. IC Role / Device Role / Timing Role: Main output rectifier in quasi-resonant buck-boost topology. Use Value: 1.70 V V_F minimizes thermal rise in thermally constrained aluminum-core PCBs; DO-15 package enables automated through-hole assembly.

Automotive DC-DC Converters

Industrial SMPS Output Rectification

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

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

Use Value: AEC-Q101 rating ensures compliance with ISO/TS 16949; 500 V V_RRM accommodates load-dump transients up to ±120 V.

Use Scenario: Secondary-side rectification in 24 V input, 12 V/5 A industrial power supplies for PLC I/O modules.

IC Role / Device Role / Timing Role: Freewheeling diode across relay coils and motor drivers, plus main output rectifier.

Use Value: 35 ns t_rr prevents cross-conduction loss in high-frequency PWM-driven loads; 50 A I_FSM handles inductive kickback safely.

UPS Inverter Stage

LED Driver Secondary Rectification

Use Scenario: Bidirectional DC link clamping and freewheeling in 48 V battery-backed UPS inverters.

IC Role / Device Role / Timing Role: Clamp diode in H-bridge output stage and freewheel path during dead-time.

Use Value: 150 °C T_J max allows operation at ambient up to 85 °C inside enclosed UPS cabinets; 20 pF C_J suppresses high-frequency ringing.

Use Scenario: Constant-current output rectification in isolated 36 V LED string drivers for street lighting.

IC Role / Device Role / Timing Role: Main output rectifier in quasi-resonant buck-boost topology.

Use Value: 1.70 V V_F minimizes thermal rise in thermally constrained aluminum-core PCBs; DO-15 package enables automated through-hole assembly.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R06	Same 2 A / 600 V rating, but 1.85 V V_F and 50 ns t_rr; TO-220AC package	Higher thermal mass suits higher-power designs (>30 W); not AEC-Q101 qualified	Select when board space permits larger package and automotive qualification is not required
ON Semi MUR260	2 A / 600 V, 1.75 V V_F, 60 ns t_rr; DO-201AD package, no AEC-Q101	Higher trr increases switching loss above 250 kHz; lead-free only (no halogen-free claim)	Choose for cost-sensitive industrial supplies where 60 ns trr is acceptable and halogen-free is optional

Compared with STTH2R06 and MUR260, the SF27GHR0G offers superior high-frequency performance (35 ns vs ≥50 ns), guaranteed automotive qualification, and halogen-free compliance-making it optimal for space-constrained, thermally demanding, and safety-critical 500 V rectification tasks.

Availability

SF27GHR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS output stages, and UPS inverter freewheeling applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.

Supply support for SF27GHR0G 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 high-reliability rectifiers, TVS diodes, and MOSFETs for automotive and industrial markets.

The SF27GHR0G belongs to TSC's AEC-Q101-qualified SF2xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in harsh-environment automotive and industrial systems.

FAQ

What is the maximum repetitive peak reverse voltage of the SF27GHR0G?

The SF27GHR0G has a maximum repetitive peak reverse voltage (V_RRM) of 500 V. This rating is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2105), and defines the highest DC or peak AC reverse voltage the device can block continuously without breakdown. The SF27GHR0G must not be operated beyond this limit in any design using SF27GHR0G.

Is the SF27GHR0G AEC-Q101 qualified?

Yes, the "H" suffix in SF27GHR0G explicitly denotes AEC-Q101 qualification per the Ordering Information section of the Taiwan Semiconductor datasheet. This certification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life-validating SF27GHR0G for use in automotive powertrain and body electronics where reliability is mission-critical.

What is the forward voltage drop of the SF27GHR0G at rated current?

The SF27GHR0G exhibits a typical forward voltage (V_F) of 1.70 V at 2 A and 25°C, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and reflects conduction loss behavior in real-world switching applications. At elevated junction temperatures, V_F decreases slightly, and SF27GHR0G maintains stable performance up to 150 °C.

Does the SF27GHR0G have a halogen-free construction?

Yes, the SF27GHR0G uses halogen-free molding compound compliant with IEC 61249-2-21, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This eliminates brominated flame retardants and supports environmentally responsible manufacturing and end-of-life processing-critical for automotive OEMs and industrial equipment meeting strict chemical compliance mandates alongside SF27GHR0G deployment.

What is the reverse recovery time of the SF27GHR0G?

The SF27GHR0G has a maximum reverse recovery time (t_rr) of 35 ns, tested at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This ultra-fast recovery enables efficient operation in high-frequency switching converters (up to 500 kHz), minimizing switching losses and EMI generation. The t_rr value is consistent across the SF27G/SF28G group and is a key differentiator versus standard fast recovery diodes in the SF27GHR0G family.

SF27GHR0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

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

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 500 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

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

SF27GHR0G FAQ

1.How can I place an order for SF27GHR0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF27GHR0G 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 SF27GHR0G reliable?

The price and inventory of SF27GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF27GHR0G is usually 5 days.

3.What payment methods are accepted for SF27GHR0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF27GHR0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF27GHR0G?

SF27GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF27GHR0G 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 SF27GHR0G?

For technical support, including SF27GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF27GHR0G requirements.

6.How does Aetrix verify that SF27GHR0G is sourced from the original manufacturer or authorized distributors?

All SF27GHR0G 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 SF27GHR0G meets industry standards.

7.What is the process for return or replacement of SF27GHR0G?

All SF27GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF27GHR0G, 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 SF27GHR0G part is unused and in its original packaging.

Return procedure for SF27GHR0G:

1.Submit a request within 90 days.

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

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