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

Taiwan Semiconductor Corporation FR106G

Name: FR106G
Brand: Taiwan Semiconductor Corporation
SKU: FR106G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FR106G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: FR106G.pdf

Description:: DIODE GEN PURP 800V 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:9,950

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Product details

Overview

FR106G from Taiwan Semiconductor is a 1A, 800V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 30 A surge current capability. It serves as a primary output rectifier in high-frequency switching power supplies.

For engineers reviewing the FR106G datasheet, FR106G pinout, FR106G application, or FR106G equivalent, key selection criteria include its 800 V repetitive peak reverse voltage, AEC-Q101 qualification option, glass-passivated junction for reliability, and suitability for DC-DC converters requiring low conduction loss and fast transient response.

Technical Context

The FR106G employs a single-die silicon PN junction with glass passivation to ensure stable operation up to 150 °C junction temperature and robustness against humidity and mechanical stress. Its 500 ns trr enables efficient operation in 50–200 kHz SMPS topologies without excessive switching loss.

Designed for unidirectional current flow, it supports continuous 1 A average forward current with 30 A non-repetitive surge rating (8.3 ms half-sine), and exhibits only 5 µA max reverse leakage at 25 °C and rated 800 V reverse voltage.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Withstands up to 800 V repetitive reverse voltage, enabling use in 400 V AC-input offline SMPS secondary-side rectification.
I_F	1 A - Rated average forward current at 75 °C ambient, sufficient for mid-power adapter and industrial DC-DC outputs.
t_rr	500 ns - Fast recovery minimizes switching losses and EMI in high-frequency converters operating above 100 kHz.
V_F (max)	1.3 V @ 1 A, 25 °C - Low forward drop reduces conduction loss and thermal load in compact, thermally constrained designs.
I_FSM	30 A - Handles inrush and transient surges common during cold-start or line-step events in power supplies.
R_θJA	70 °C/W - Thermal resistance allows ~1.1 W dissipation at 75 °C ambient before reaching 150 °C T_J limit.

Pinout & Package

Package: DO-204AL (DO-41), axial leaded, glass-passivated silicon die, cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Forward current entry point	Connected to lower-potential side of load or transformer secondary; requires PCB trace capable of 1 A continuous current.
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connected to output rail or capacitor positive; band orientation must be verified during automated placement and visual inspection.

Key Features

Feature	Design Value
Glass passivated junction	Enhances moisture resistance and long-term reliability under thermal cycling and humid environments (e.g., industrial enclosures).
AEC-Q101 qualified version available	Meets automotive-grade stress testing requirements for temperature cycling, HTRB, and ESD, supporting under-hood and infotainment power stages.
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and EU RoHS directives, enabling use in eco-conscious consumer and medical-grade power supplies.
UL 94V-0 molding compound	Self-extinguishing encapsulant prevents flame propagation in fault conditions, satisfying safety standards for Class II isolated supplies.

Applications

AC-DC Adapter Output Rectification	Industrial DC-DC Converter Secondary Side
Use Scenario: 12 V/1 A output stage of universal-input 50–65 W wall adapter. IC Role / Device Role / Timing Role: Unidirectional power conversion switch; conducts during positive half-cycle of transformer secondary voltage. Use Value: 1.3 V V_F limits conduction loss to <1.3 W, reducing heatsink need; 500 ns t_rr suppresses ringing and EMI near 150 kHz switching frequency.	Use Scenario: 24 V/0.8 A isolated output in programmable logic controller (PLC) power module. IC Role / Device Role / Timing Role: Main output rectifier in forward converter topology with synchronous or diode-based secondary. Use Value: 800 V V_RRM provides 2× margin over 400 V reflected transients; 30 A I_FSM withstands motor drive startup surges coupled through shared supply rails.
Automotive Infotainment Power Supply	LED Driver Secondary Rectification
Use Scenario: 5 V standby rail generation from 12 V battery via flyback converter in head unit. IC Role / Device Role / Timing Role: High-reliability rectifier in AEC-Q101-qualified variant (FR106GH), handling cold-crank and load-dump transients. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure >15-year field life; 150 °C T_JMAX supports operation near heat-generating SoCs.	Use Scenario: Constant-current LED string driver with 36 V output in commercial lighting fixture. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback, conducting at zero-voltage switching transitions. Use Value: 500 ns t_rr avoids reverse recovery tail current that would otherwise distort ZVS timing and increase MOSFET stress.

AC-DC Adapter Output Rectification

Industrial DC-DC Converter Secondary Side

Use Scenario: 12 V/1 A output stage of universal-input 50–65 W wall adapter.

IC Role / Device Role / Timing Role: Unidirectional power conversion switch; conducts during positive half-cycle of transformer secondary voltage.

Use Value: 1.3 V V_F limits conduction loss to <1.3 W, reducing heatsink need; 500 ns t_rr suppresses ringing and EMI near 150 kHz switching frequency.

Use Scenario: 24 V/0.8 A isolated output in programmable logic controller (PLC) power module.

IC Role / Device Role / Timing Role: Main output rectifier in forward converter topology with synchronous or diode-based secondary.

Use Value: 800 V V_RRM provides 2× margin over 400 V reflected transients; 30 A I_FSM withstands motor drive startup surges coupled through shared supply rails.

Automotive Infotainment Power Supply

LED Driver Secondary Rectification

Use Scenario: 5 V standby rail generation from 12 V battery via flyback converter in head unit.

IC Role / Device Role / Timing Role: High-reliability rectifier in AEC-Q101-qualified variant (FR106GH), handling cold-crank and load-dump transients.

Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure >15-year field life; 150 °C T_JMAX supports operation near heat-generating SoCs.

Use Scenario: Constant-current LED string driver with 36 V output in commercial lighting fixture.

IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback, conducting at zero-voltage switching transitions.

Use Value: 500 ns t_rr avoids reverse recovery tail current that would otherwise distort ZVS timing and increase MOSFET stress.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R08	Same 1 A / 800 V rating; 75 ns t_rr, 1.7 V V_F max - faster but higher conduction loss.	Better for >300 kHz designs where switching loss dominates; less suitable for thermally limited adapters.	Select STTH1R08 when minimizing EMI and improving light-load efficiency is critical; verify thermal margin due to higher V_F.
ON Semi MUR108	1 A / 800 V; 75 ns t_rr, 1.75 V V_F max; TO-220AC package - different footprint and thermal path.	Requires board redesign; suited for higher-power, forced-air-cooled systems (>3 W dissipation).	Choose MUR108 only when DO-41 thermal limits are exceeded and layout allows TO-220 mounting with heatsink.

Compared with STTH1R08 and MUR108, the FR106G offers the lowest forward voltage in DO-41 form factor among 800 V fast rectifiers, making it optimal for space-constrained, conduction-loss-sensitive 1 A applications where 500 ns recovery is sufficient.

Availability

FR106G is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC-DC converters, and automotive infotainment power supplies requiring stable component supply and long-term manufacturing continuity.

Supply support for FR106G 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 FR101G–FR107G series was developed to deliver cost-effective, high-reliability fast recovery rectifiers for mainstream switching power supplies, with emphasis on thermal stability, surge robustness, and regulatory compliance across automotive and industrial segments.

FAQ

What is the maximum junction temperature rating for the FR106G?

The FR106G has a maximum junction temperature (T_J) rating of +150 °C, confirmed in the Absolute Maximum Ratings table. This allows reliable operation in enclosed industrial power supplies where ambient temperatures reach 75 °C, provided the device's 70 °C/W junction-to-ambient thermal resistance is respected in layout design. Derating curves in the datasheet show usable current drops linearly above 75 °C ambient.

Is the FR106G pin-compatible with other devices in the FR10xG family?

Yes - all FR101G through FR107G share identical DO-204AL (DO-41) package dimensions, axial lead configuration, and cathode band polarity marking. The FR106G can be substituted for any other FR10xG variant on the same PCB footprint, provided the 800 V V_RRM meets system voltage margin requirements.

Does the FR106G meet automotive qualification standards?

The base FR106G is not AEC-Q101 qualified, but the FR106GH variant - identified by the "H" suffix in the ordering code - is fully AEC-Q101 qualified. Both share identical electrical specs and DO-41 packaging; only the FR106GH undergoes extended stress testing per automotive reliability standards.

What is the typical reverse recovery time (t_rr) of the FR106G, and under what test conditions is it measured?

The FR106G has a maximum reverse recovery time (t_rr) of 500 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, as specified in the Electrical Specifications table. This value reflects worst-case performance at room temperature and is validated using standardized half-sine waveform test circuits defined in JEDEC standards.

How does the FR106G's forward voltage compare to similar 800 V fast rectifiers?

The FR106G specifies a maximum forward voltage (V_F) of 1.3 V at 1 A and 25 °C - among the lowest in its class. Competing 800 V fast rectifiers like the STTH1R08 and MUR108 specify 1.7 V and 1.75 V respectively, making the FR106G advantageous for thermally sensitive, high-efficiency 1 A applications where conduction loss dominates total power loss.

FR106G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 800 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1 A

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

Reverse Recovery Time (trr):: 500 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 800 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

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

FR106G FAQ

1.How can I place an order for FR106G through Aetrix?

Please submit a Request for Quotation (RFQ) for FR106G 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 FR106G reliable?

The price and inventory of FR106G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR106G is usually 5 days.

3.What payment methods are accepted for FR106G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR106G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FR106G?

FR106G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FR106G 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 FR106G?

For technical support, including FR106G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR106G requirements.

6.How does Aetrix verify that FR106G is sourced from the original manufacturer or authorized distributors?

All FR106G 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 FR106G meets industry standards.

7.What is the process for return or replacement of FR106G?

All FR106G units undergo pre-shipment inspection (PSI). If there is an issue with FR106G, 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 FR106G part is unused and in its original packaging.

Return procedure for FR106G:

1.Submit a request within 90 days.

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

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