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

Taiwan Semiconductor Corporation FR302G R0G

Name: FR302G R0G
Brand: Taiwan Semiconductor Corporation
SKU: FR302G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FR302G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: FR302G R0G.pdf

Description:: DIODE GEN PURP 100V 3A DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:7,722

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Product details

Overview

FR302G R0G from Taiwan Semiconductor is a 3A, 100V fast recovery rectifier diode in DO-201AD package, featuring 150ns reverse recovery time, 1.3V max forward voltage at 3A, and 125A surge capability - used in switching-mode DC/DC converters requiring high efficiency and thermal robustness.

For engineers reviewing the FR302G R0G datasheet, FR302G R0G pinout, FR302G R0G application, or FR302G R0G equivalent, key selection criteria include V_RRM = 100V, I_F = 3A, t_rr = 150ns, R_θJA = 35°C/W, and DO-201AD mechanical compatibility with high-reliability power conversion designs.

Technical Context

This single-die fast recovery rectifier operates with low conduction loss (V_F ≤ 1.3V @ 3A, 25°C) and controlled switching behavior (t_rr = 150ns), enabling efficient operation in high-frequency SMPS topologies. Its 125A non-repetitive surge rating supports transient load handling without derating.

The device exhibits 5µA max reverse leakage at 25°C and 100µA at 125°C, with junction capacitance of 30pF at 4V reverse bias - parameters critical for EMI control and snubberless design in compact converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - maximum repetitive reverse voltage; defines safe blocking range in 12–48V input DC/DC stages
I_F	3 A - continuous forward current; supports up to 36W output at 12V with minimal thermal rise
t_rr	150 ns - reverse recovery time; enables stable operation up to ~500 kHz switching frequency
V_F (max)	1.3 V @ 3A, 25°C - low conduction loss reduces power dissipation by ~25% vs. standard recovery diodes
I_FSM	125 A - 8.3ms half-sine surge rating; withstands inrush currents in offline input rectification
R_θJA	35 °C/W - junction-to-ambient thermal resistance; allows 3A operation at ≤75°C ambient with minimal heatsinking
Junction temp	-55°C to +150°C - wide operating range supports automotive under-hood and industrial ambient conditions

Pinout & Package

DO-201AD axial-leaded package with cathode band marking; leads are pure tin-plated per J-STD-002, UL 94V-0 molded compound, and JESD 201 Class 2 whisker compliant.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or filter capacitor positive; blocks 100V reverse during off-state

Key Features

Feature	Design Value
Fast recovery (t_rr)	150 ns - minimizes switching loss and ringing in flyback and forward converter freewheel paths
Low V_F	≤1.3 V @ 3A - reduces conduction loss by ≥0.4W vs. 1.7V diodes, improving system efficiency >2%
High surge rating	125 A I_FSM - eliminates need for parallel diodes in high-inrush applications like AC-DC front ends
Thermal robustness	T_J max = 150°C - enables operation in sealed enclosures or high-ambient industrial environments
RoHS & halogen-free	Compliant per IEC 61249-2-21 - meets environmental requirements for automotive and EU-based OEM production

Applications

DC/DC Converter Output Rectification	Switching Mode Inverter Freewheel Path
Use Scenario: Secondary-side rectification in isolated 12V/24V output flyback or forward converters. IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during transformer reset phase; replaces slower general-purpose diodes. Use Value: 150ns t_rr suppresses voltage spikes and reduces snubber losses, enabling smaller magnetics and higher power density.	Use Scenario: Freewheeling path across inductive loads in motor drive inverters (e.g., HVAC blower, pump controllers). IC Role / Device Role / Timing Role: Unidirectional current path during MOSFET off-time; handles bidirectional energy return from inductive kick. Use Value: 125A I_FSM withstands repetitive inductive surges without degradation, extending system lifetime in cyclic duty applications.
Industrial Power Supply Input Stage	Automotive Body Control Module (BCM) DC/DC
Use Scenario: Input rectification in 24V/48V industrial SMPS with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary rectifier converting AC or pulsed DC to unregulated bus; operates continuously at full 3A load. Use Value: R_θJA = 35°C/W and -55°C to +150°C T_J rating allow reliable operation without forced air cooling in enclosed cabinets.	Use Scenario: Step-down DC/DC conversion in 12V automotive BCMs powering LED lighting and solenoid drivers. IC Role / Device Role / Timing Role: Output rectifier in synchronous-buck-derived topology; must survive load dump transients and cold-crank conditions. Use Value: 100V V_RRM provides margin above 12V nominal with 100V load dump peaks; RoHS/halogen-free compliance satisfies OEM material declarations.

DC/DC Converter Output Rectification

Switching Mode Inverter Freewheel Path

Use Scenario: Secondary-side rectification in isolated 12V/24V output flyback or forward converters.

IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during transformer reset phase; replaces slower general-purpose diodes.

Use Value: 150ns t_rr suppresses voltage spikes and reduces snubber losses, enabling smaller magnetics and higher power density.

Use Scenario: Freewheeling path across inductive loads in motor drive inverters (e.g., HVAC blower, pump controllers).

IC Role / Device Role / Timing Role: Unidirectional current path during MOSFET off-time; handles bidirectional energy return from inductive kick.

Use Value: 125A I_FSM withstands repetitive inductive surges without degradation, extending system lifetime in cyclic duty applications.

Industrial Power Supply Input Stage

Automotive Body Control Module (BCM) DC/DC

Use Scenario: Input rectification in 24V/48V industrial SMPS with wide ambient temperature range (-40°C to +85°C).

IC Role / Device Role / Timing Role: Primary rectifier converting AC or pulsed DC to unregulated bus; operates continuously at full 3A load.

Use Value: R_θJA = 35°C/W and -55°C to +150°C T_J rating allow reliable operation without forced air cooling in enclosed cabinets.

Use Scenario: Step-down DC/DC conversion in 12V automotive BCMs powering LED lighting and solenoid drivers.

IC Role / Device Role / Timing Role: Output rectifier in synchronous-buck-derived topology; must survive load dump transients and cold-crank conditions.

Use Value: 100V V_RRM provides margin above 12V nominal with 100V load dump peaks; RoHS/halogen-free compliance satisfies OEM material declarations.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	V_RRM = 600V, t_rr = 35ns, I_F = 3A, SOD-123FL package	Higher voltage rating but surface-mount; unsuitable for through-hole DO-201AD footprint	Select when board space is constrained and 600V blocking is required; requires PCB redesign.
ON Semi MUR3020CT	Dual common-cathode configuration, V_RRM = 200V, t_rr = 35ns, I_F(per diode) = 3A, TO-220AC	Higher voltage, faster recovery, but larger package and dual-diode topology	Choose for higher-voltage dual-output supplies where thermal mass and layout flexibility permit TO-220 mounting.

Compared with STTH3L06S and MUR3020CT, FR302G R0G offers optimal balance of 100V rating, 150ns speed, DO-201AD through-hole compatibility, and cost-effective single-diode implementation for mid-power 24V-class converters.

Availability

FR302G R0G is available at Aetrix Electronics and suitable for DC/DC converters, switching mode inverters, and industrial power supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for FR302G R0G 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 rectifiers, TVS devices, and MOSFETs for industrial and automotive markets.

The FR301G–FR307G series was designed specifically for high-efficiency, high-reliability switching power conversion - targeting cost-sensitive yet thermally demanding applications where fast recovery, surge resilience, and long-term stability are mandatory.

FAQ

What is the maximum junction temperature rating for FR302G R0G?

The FR302G R0G has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version H2105). This rating enables reliable operation in sealed enclosures and high-ambient industrial environments without active cooling. The FR302G R0G maintains specified electrical performance up to this limit when thermal design accounts for its 35°C/W junction-to-ambient resistance.

Is FR302G R0G AEC-Q101 qualified?

No, FR302G R0G is not AEC-Q101 qualified. Only variants marked with "H" suffix (e.g., FR302GH) meet AEC-Q101 stress testing requirements. The FR302G R0G uses the same die and DO-201AD package but lacks the extended qualification testing for automotive-grade reliability. For automotive body electronics or under-hood applications, FR302GH is the designated qualified version.

What does the "R0G" suffix indicate in FR302G R0G?

The "R0G" suffix in FR302G R0G denotes tape-and-reel packaging: "R" = reel, "0" = standard carrier tape width, "G" = green (halogen-free) molding compound. It is functionally identical to FR302G in electrical and thermal specifications. The FR302G R0G ordering code corresponds to 1,250 units per reel, per Taiwan Semiconductor's official ordering information table.

Can FR302G R0G replace FR301G in an existing design?

Yes, FR302G R0G can directly replace FR301G because both share identical package (DO-201AD), pinout, thermal characteristics, and forward current rating (3A), while offering higher V_RRM (100V vs. 50V). No PCB or layout changes are needed. The FR302G R0G provides additional reverse voltage margin, improving robustness against transients without altering circuit behavior or thermal design.

What is the reverse recovery time (t_rr) of FR302G R0G and how is it measured?

The reverse recovery time (t_rr) of FR302G R0G is 150 ns, measured under conditions of I_F = 0.5A, I_R = 1.0A, and I_rr = 0.25A, per the official Taiwan Semiconductor test methodology. This value is confirmed in the Electrical Specifications table (Page 2, Version H2105). The FR302G R0G achieves this performance using optimized silicon doping and lifetime control, enabling clean turn-off in high-frequency SMPS.

FR302G R0G 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:: 1.3 V @ 3 A

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

Reverse Recovery Time (trr):: 150 ns

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

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

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

FR302G R0G FAQ

1.How can I place an order for FR302G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for FR302G R0G 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 FR302G R0G reliable?

The price and inventory of FR302G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR302G R0G is usually 5 days.

3.What payment methods are accepted for FR302G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR302G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FR302G R0G?

FR302G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FR302G R0G 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 FR302G R0G?

For technical support, including FR302G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR302G R0G requirements.

6.How does Aetrix verify that FR302G R0G is sourced from the original manufacturer or authorized distributors?

All FR302G R0G 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 FR302G R0G meets industry standards.

7.What is the process for return or replacement of FR302G R0G?

All FR302G R0G units undergo pre-shipment inspection (PSI). If there is an issue with FR302G R0G, 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 FR302G R0G part is unused and in its original packaging.

Return procedure for FR302G R0G:

1.Submit a request within 90 days.

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

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