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

Taiwan Semiconductor Corporation SF32GHR0G

Name: SF32GHR0G
Brand: Taiwan Semiconductor Corporation
SKU: SF32GHR0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF32GHR0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: SF32GHR0G.pdf

Description:: DIODE GEN PURP 100V 3A DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:5,885

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Product details

Overview

SF32GHR0G from Taiwan Semiconductor is a 100V, 3A super fast recovery rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 0.95V forward voltage at 3A/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 SF32GHR0G datasheet, SF32GHR0G pinout, SF32GHR0G application, or SF32GHR0G equivalent, key selection criteria include V_RRM = 100 V, I_F = 3 A, t_rr = 35 ns, V_F = 0.95 V, and AEC-Q101 qualification - all critical for DC-DC converter and SMPS freewheeling designs requiring low loss and fast switching.

Technical Context

This super fast rectifier uses a single-die silicon PN junction optimized for reduced reverse recovery charge (Q_rr) and minimal forward conduction loss. Its 35 ns t_rr enables operation in 100–500 kHz switching topologies without excessive switching loss or EMI generation.

The device operates across –55°C to +150°C junction temperature range with R_θJL = 10°C/W and R_θJC = 9°C/W, supporting thermally constrained PCB layouts. The pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in 48V bus or 100V-rated SMPS outputs
I_F	3 A - Continuous average forward current; supports up to 36W dissipation at V_F = 0.95V in TO-220-equivalent thermal conditions
t_rr	35 ns - Reverse recovery time at I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A; enables efficient operation in >200 kHz converters
V_F	0.95 V @ 3A, 25°C - Forward voltage drop; determines conduction loss of ~2.85W at full load, critical for thermal design
I_FSM	125 A - Non-repetitive surge current (8.3ms half-sine); withstands inrush and fault currents in industrial power rails
T_J(max)	+150°C - Maximum junction temperature; allows operation in under-hood automotive environments with derating
C_J	80 pF @ 1 MHz, 4V - Junction capacitance; impacts high-frequency switching noise and snubber sizing

Pinout & Package

DO-201AD axial-leaded package with cathode band marking; 1.10 g weight; UL 94V-0 molding compound; pure tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck freewheel path)
Cathode (Lead 2, banded end)	Forward current exit / reverse blocking terminal	Connected to output rail or positive bus; blocks reverse voltage up to 100 V

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and ADAS power stages
Super fast recovery (t_rr = 35 ns)	Reduces switching losses and EMI vs. standard fast rectifiers (t_rr > 100 ns) in high-frequency SMPS
Low V_F = 0.95 V @ 3A	Minimizes conduction loss and thermal stress in compact, unheatsinked PCB layouts
High I_FSM = 125 A	Survives transient overloads in motor drive clamp circuits and DC bus protection paths
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and global environmental compliance mandates for automotive and industrial OEMs

Applications

Automotive DC-DC Converters	Industrial Switch-Mode Power Supplies
Use Scenario: 12V-to-5V/3.3V buck converter in body control module with 300 kHz switching frequency. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 35 ns t_rr prevents reverse recovery tail current, reducing switching loss by ~40% vs. standard FR107.	Use Scenario: 48V input telecom rectifier stage delivering 24V/5A output with synchronous rectification disabled. IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A load with minimal V_F-induced heating. Use Value: 0.95V V_F limits conduction loss to 2.85W, enabling operation without heatsink on 2 oz copper layers.
UPS Inverter Output Stage	Motor Drive Clamp Circuits
Use Scenario: Bidirectional 100V DC link in online UPS inverter using hard-switched IGBTs. IC Role / Device Role / Timing Role: Anti-parallel freewheeling diode absorbing reactive energy during IGBT commutation. Use Value: 125A I_FSM withstands peak regenerative surges during sudden motor deceleration.	Use Scenario: Snubberless clamp diode across 100V BLDC motor phase winding in e-bike controller. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping inductive kickback spikes during PWM turn-off. Use Value: 100V V_RRM provides 20% margin above 80V battery nominal, ensuring robustness against line transients.

Automotive DC-DC Converters

Industrial Switch-Mode Power Supplies

Use Scenario: 12V-to-5V/3.3V buck converter in body control module with 300 kHz switching frequency.

IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time.

Use Value: 35 ns t_rr prevents reverse recovery tail current, reducing switching loss by ~40% vs. standard FR107.

Use Scenario: 48V input telecom rectifier stage delivering 24V/5A output with synchronous rectification disabled.

IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A load with minimal V_F-induced heating.

Use Value: 0.95V V_F limits conduction loss to 2.85W, enabling operation without heatsink on 2 oz copper layers.

UPS Inverter Output Stage

Motor Drive Clamp Circuits

Use Scenario: Bidirectional 100V DC link in online UPS inverter using hard-switched IGBTs.

IC Role / Device Role / Timing Role: Anti-parallel freewheeling diode absorbing reactive energy during IGBT commutation.

Use Value: 125A I_FSM withstands peak regenerative surges during sudden motor deceleration.

Use Scenario: Snubberless clamp diode across 100V BLDC motor phase winding in e-bike controller.

IC Role / Device Role / Timing Role: Transient voltage suppressor clamping inductive kickback spikes during PWM turn-off.

Use Value: 100V V_RRM provides 20% margin above 80V battery nominal, ensuring robustness against line transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.15 V @ 3A - higher voltage rating but higher V_F	Used where 600V isolation or universal input AC-DC is required; less optimal for 100V systems due to excess V_F loss	Select only if system requires >100V reverse blocking; otherwise SF32GHR0G offers lower conduction loss at 100V
ON Semi MUR320	V_RRM = 200 V, t_rr = 35 ns, V_F = 0.92 V @ 3A - same speed, slightly lower V_F, higher V_RRM	Common in 24–48V industrial PSUs needing 200V margin; not AEC-Q101 qualified	Prefer SF32GHR0G for automotive use; choose MUR320 only when AEC-Q101 is not required and 200V margin is needed

Compared with STTH3L06S and MUR320, SF32GHR0G uniquely combines 100V V_RRM, AEC-Q101 qualification, and 0.95V V_F - making it the optimal choice for cost- and thermally sensitive 12–48V automotive and industrial DC-DC freewheeling where precise voltage rating and reliability are prioritized.

Availability

SF32GHR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and UPS inverter output stages requiring stable component supply and AEC-Q101-compliant performance.

Supply support for SF32GHR0G 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 devices, rectifiers, TVS, and MOSFETs for industrial and automotive markets.

The SF3xG series was developed specifically for high-efficiency, high-reliability rectification in automotive-grade switching power supplies and industrial SMPS, emphasizing fast recovery, low V_F, and AEC-Q101 validation.

FAQ

What is the maximum junction temperature rating for SF32GHR0G?

The SF32GHR0G has a maximum junction temperature (T_J(max)) of +150°C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures when used within its derated current limits. Thermal design must account for R_θJL = 10°C/W to ensure SF32GHR0G stays within this limit under full-load conditions.

Is SF32GHR0G pin-compatible with other DO-201AD rectifiers like SF31G or SF33G?

Yes, SF32GHR0G shares the identical DO-201AD package, anode/cathode pinout, and mechanical footprint with all SF3xG series devices including SF31G and SF33G. This allows direct substitution in existing layouts when voltage rating changes are acceptable - for example, replacing SF32GHR0G (100V) with SF33GHR0G (150V) requires no PCB modification but may increase V_F.

Does SF32GHR0G meet automotive qualification standards?

Yes, SF32GHR0G is explicitly AEC-Q101 qualified, as confirmed by the "H" suffix in its ordering code and TSC's H2105 datasheet revision. This qualification covers stress tests including HTGB, HTRB, TCT, and UHAST, validating SF32GHR0G for use in automotive powertrain, body electronics, and ADAS subsystems where long-term reliability under thermal and electrical stress is mandatory.

What is the reverse recovery time (t_rr) test condition for SF32GHR0G?

The reverse recovery time of SF32GHR0G is specified as 35 ns maximum under the condition: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A, measured per JEDEC standard test circuit. This value is consistent across the SF31G–SF34G group and reflects the device's optimized carrier lifetime control for high-frequency switching efficiency in SMPS and inverters.

How does the forward voltage of SF32GHR0G compare to SF35G–SF38G variants?

SF32GHR0G has a typical forward voltage of 0.95 V at 3 A and 25°C, whereas SF35G–SF38G exhibit higher V_F values (1.30–1.70 V) due to their higher V_RRM ratings (300–600 V). This trade-off reflects the physics of wider-bandgap junction design: SF32GHR0G delivers lower conduction loss in 100V systems, while higher-voltage variants prioritize blocking capability over V_F efficiency.

SF32GHR0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-201AD, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 3 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 80pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

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

SF32GHR0G FAQ

1.How can I place an order for SF32GHR0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF32GHR0G 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 SF32GHR0G reliable?

The price and inventory of SF32GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF32GHR0G is usually 5 days.

3.What payment methods are accepted for SF32GHR0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF32GHR0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF32GHR0G?

SF32GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF32GHR0G 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 SF32GHR0G?

For technical support, including SF32GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF32GHR0G requirements.

6.How does Aetrix verify that SF32GHR0G is sourced from the original manufacturer or authorized distributors?

All SF32GHR0G 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 SF32GHR0G meets industry standards.

7.What is the process for return or replacement of SF32GHR0G?

All SF32GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF32GHR0G, 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 SF32GHR0G part is unused and in its original packaging.

Return procedure for SF32GHR0G:

1.Submit a request within 90 days.

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

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