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

Taiwan Semiconductor Corporation FR152G-T

Name: FR152G-T
Brand: Taiwan Semiconductor Corporation
SKU: FR152G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FR152G-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: FR152G-T.pdf

Description:: 150NS, 1.5A, 100V, FAST RECOVERY

Quantity:: RFQ Add To RFQ list

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Inventory:2,510

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Product details

Overview

FR152G-T from Taiwan Semiconductor is a 1.5A, 100V fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and 50 A surge current capability. It serves as the primary output rectifier in low-to-medium power SMPS.

For engineers reviewing the FR152G-T datasheet, FR152G-T pinout, FR152G-T application, or FR152G-T equivalent, key selection criteria include V_RRM = 100 V, I_F = 1.5 A, t_rr = 150 ns, thermal resistance R_θJA = 60 °C/W, and DO-15 mechanical compatibility for board-level replacement in DC-DC converters.

Technical Context

This single-die, glass-passivated fast recovery rectifier uses planar junction technology to achieve low forward voltage and controlled reverse recovery behavior. Its 150 ns t_rr enables operation in switching frequencies up to ~100 kHz without excessive switching loss.

The device operates across -55°C to +150°C junction temperature range with 5 µA max reverse leakage at 25°C and 100 µA at 125°C, supporting stable performance in thermally constrained industrial power supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in flyback/clamp circuits
I_F	1.5 A - Continuous average forward current; sets maximum steady-state output power handling
t_rr	150 ns - Reverse recovery time; determines minimum practical switching frequency and EMI generation level
V_F (max)	1.3 V @ 1.5 A - Forward voltage drop; directly impacts conduction loss and thermal design in high-duty-cycle operation
I_FSM	50 A - Non-repetitive surge current rating; supports inrush tolerance during cold-start or line transients
R_θJA	60 °C/W - Junction-to-ambient thermal resistance; used to calculate required heatsinking or PCB copper area

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, glass-passivated, RoHS-compliant, halogen-free molding compound meeting UL 94V-0. Cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return)
Cathode	Forward current exit point	Connected to output rail; polarity band identifies this terminal for correct PCB placement

Key Features

Feature	Design Value
Glass passivated junction	Enhances moisture resistance and long-term reliability under humid or thermally cycling conditions
Low V_F (≤1.3 V)	Reduces conduction loss by ~15% vs. standard recovery diodes at 1.5 A, lowering thermal stress
150 ns t_rr	Enables efficient operation in 50–100 kHz SMPS without requiring snubbers or active clamping
50 A I_FSM	Withstands 8.3 ms half-sine surges common in AC input rectification or transformer reset events

Applications

DC-DC Converter Output Rectification	Switch-Mode Power Supply (SMPS)
Use Scenario: Secondary-side rectification in isolated 12 V/1.5 A flyback converter powering industrial sensors. IC Role / Device Role / Timing Role: Fast recovery rectifier converting high-frequency transformer output to regulated DC. Use Value: 150 ns t_rr minimizes switching loss and EMI, while 1.3 V V_F maintains >87% efficiency at full load.	Use Scenario: Input bridge or output rectifier in compact 24 V/1 A offline adapter for building automation controllers. IC Role / Device Role / Timing Role: Discrete power rectifier handling continuous 1.5 A conduction and transient 50 A surges. Use Value: DO-15 package fits legacy footprints; 60 °C/W R_θJA allows natural convection cooling on 1 oz copper.
AC-DC Adapter Secondary Side	Industrial Control Power Supply
Use Scenario: Output rectification in universal-input 5 V/2 A wall adapter with 65 kHz switching frequency. IC Role / Device Role / Timing Role: Fast recovery diode replacing slower general-purpose rectifiers to reduce losses. Use Value: 100 V V_RRM provides 2× safety margin over 48 V peak secondary voltage, ensuring robustness.	Use Scenario: Auxiliary 15 V bias supply rectifier in PLC power module operating at 70°C ambient. IC Role / Device Role / Timing Role: High-reliability discrete rectifier with 150°C max junction rating. Use Value: 100 µA IR at 125°C ensures stable no-load regulation and low standby power consumption.

DC-DC Converter Output Rectification

Switch-Mode Power Supply (SMPS)

Use Scenario: Secondary-side rectification in isolated 12 V/1.5 A flyback converter powering industrial sensors.

IC Role / Device Role / Timing Role: Fast recovery rectifier converting high-frequency transformer output to regulated DC.

Use Value: 150 ns t_rr minimizes switching loss and EMI, while 1.3 V V_F maintains >87% efficiency at full load.

Use Scenario: Input bridge or output rectifier in compact 24 V/1 A offline adapter for building automation controllers.

IC Role / Device Role / Timing Role: Discrete power rectifier handling continuous 1.5 A conduction and transient 50 A surges.

Use Value: DO-15 package fits legacy footprints; 60 °C/W R_θJA allows natural convection cooling on 1 oz copper.

AC-DC Adapter Secondary Side

Industrial Control Power Supply

Use Scenario: Output rectification in universal-input 5 V/2 A wall adapter with 65 kHz switching frequency.

IC Role / Device Role / Timing Role: Fast recovery diode replacing slower general-purpose rectifiers to reduce losses.

Use Value: 100 V V_RRM provides 2× safety margin over 48 V peak secondary voltage, ensuring robustness.

Use Scenario: Auxiliary 15 V bias supply rectifier in PLC power module operating at 70°C ambient.

IC Role / Device Role / Timing Role: High-reliability discrete rectifier with 150°C max junction rating.

Use Value: 100 µA IR at 125°C ensures stable no-load regulation and low standby power consumption.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06S	V_RRM = 600 V, t_rr = 75 ns, I_F = 1 A, SOD-123FL package	Higher voltage rating but lower current and smaller package; unsuitable for 1.5 A continuous loads	Select only if system requires >100 V blocking and space-constrained layout permits SOD-123FL footprint
ON Semi MUR120	V_RRM = 200 V, t_rr = 75 ns, I_F = 1 A, DO-41 package	Lower I_F, faster t_rr, same axial form factor but different lead spacing and thermal mass	Acceptable for <1 A designs where tighter t_rr is prioritized; verify PCB pad compatibility and thermal derating

Compared with STTH1L06S and MUR120, FR152G-T uniquely balances 1.5 A current, 100 V rating, 150 ns speed, and DO-15 thermal performance-making it optimal for cost-sensitive 12–24 V industrial SMPS where both current headroom and manufacturability matter.

Availability

FR152G-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode power supplies, and industrial control power supplies requiring stable component supply and long-term manufacturing continuity.

Supply support for FR152G-T 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 global industrial, computing, and consumer markets since 1979.

The FR15xG-T series was designed specifically for cost-effective, high-reliability rectification in mainstream off-line and isolated DC-DC power supplies, emphasizing thermal robustness, surge resilience, and DO-15 footprint compatibility.

FAQ

What is the maximum junction temperature rating for FR152G-T?

The FR152G-T has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet revision B2105. This rating allows reliable operation in enclosed industrial enclosures with ambient temperatures up to 70°C when mounted on standard FR-4 PCB with adequate copper pour. Derating curves confirm 1.5 A continuous current is maintainable up to 110°C ambient with natural convection.

Does FR152G-T meet RoHS and halogen-free requirements?

Yes, FR152G-T is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are pure tin plated per J-STD-002 solderability standards. These compliance attributes are confirmed for the DO-204AC (DO-15) package variant shipped under ordering code FR152G-T.

What is the reverse recovery time (t_rr) of FR152G-T and how is it measured?

The FR152G-T has a reverse recovery time (t_rr) of 150 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the Electrical Specifications table in the official datasheet. This value applies specifically to the FR152G-T variant within the FR151G-T to FR157G-T family and is validated using the test circuit shown in Figure 6 of the datasheet.

Can FR152G-T replace FR151G-T in an existing design?

Yes, FR152G-T can directly replace FR151G-T in most cases because both share identical package (DO-15), pinout, thermal characteristics, and forward current rating (1.5 A). The only difference is V_RRM: FR151G-T is rated for 50 V, while FR152G-T is rated for 100 V. Using FR152G-T provides increased reverse voltage margin without layout or thermal changes, provided the higher V_RRM does not adversely affect switching dynamics.

What is the typical junction capacitance of FR152G-T and at what conditions is it specified?

The typical junction capacitance (C_J) of FR152G-T is 20 pF, measured at 1 MHz and reverse bias voltage (V_R) of 4.0 V, as specified in the Electrical Specifications table. This parameter influences high-frequency noise coupling and snubber design in fast-switching topologies; values remain stable across temperature due to the planar junction construction.

FR152G-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1.5 A

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

Reverse Recovery Time (trr):: 150 ns

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

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

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

FR152G-T FAQ

1.How can I place an order for FR152G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for FR152G-T 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 FR152G-T reliable?

The price and inventory of FR152G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR152G-T is usually 5 days.

3.What payment methods are accepted for FR152G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR152G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FR152G-T?

FR152G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FR152G-T 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 FR152G-T?

For technical support, including FR152G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR152G-T requirements.

6.How does Aetrix verify that FR152G-T is sourced from the original manufacturer or authorized distributors?

All FR152G-T 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 FR152G-T meets industry standards.

7.What is the process for return or replacement of FR152G-T?

All FR152G-T units undergo pre-shipment inspection (PSI). If there is an issue with FR152G-T, 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 FR152G-T part is unused and in its original packaging.

Return procedure for FR152G-T:

1.Submit a request within 90 days.

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

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