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

Taiwan Semiconductor Corporation UF4007

Name: UF4007
Brand: Taiwan Semiconductor Corporation
SKU: UF4007
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UF4007

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: UF4007.pdf

Description:: DIODE GEN PURP 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:4,864

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Product details

Overview

UF4007 from Taiwan Semiconductor is a 1 A, 1000 V ultrafast recovery rectifier diode in DO-204AL (DO-41) package, featuring 1.7 V forward voltage at 1 A and 75 ns reverse recovery time. It delivers high efficiency in high-frequency switching power supplies and freewheeling paths where low conduction loss and fast turn-off are critical.

For engineers reviewing the UF4007 datasheet, UF4007 pinout, UF4007 application, or UF4007 equivalent, key selection factors include its 1000 V repetitive peak reverse voltage, 30 A surge rating, glass-passivated junction, AEC-Q101 qualification option (UF4007H), and thermal resistance of 15 °C/W junction-to-lead.

Technical Context

The UF4007 operates as a single-die, planar epitaxial silicon rectifier with ultrafast recovery optimized for switching-mode power conversion above 20 kHz. Its 75 ns trr and 17 pF junction capacitance enable minimal switching loss and reduced EMI generation in DC–DC converters and inverters.

Thermally, it supports continuous operation up to 150 °C junction temperature with R_θJL = 15 °C/W, enabling compact PCB layouts without forced cooling in industrial and automotive-grade designs where AEC-Q101-compliant variants are specified.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Withstands repetitive reverse voltage up to 1000 V without breakdown, suitable for high-voltage DC bus clamping.
I_F	1 A continuous - Rated average forward current under defined thermal conditions; derates linearly above 75 °C ambient.
V_F	1.7 V @ 1 A, 25 °C - Low conduction loss improves system efficiency in high-duty-cycle rectification stages.
t_rr	75 ns - Ultrafast recovery minimizes reverse recovery charge (Q_rr) and associated switching losses in SMPS.
R_θJL	15 °C/W - Enables direct heat transfer to PCB copper pour or heatsink via lead frame, supporting high-power density layout.
I_FSM	30 A @ 8.3 ms - Handles short-duration inrush or fault currents without permanent degradation.
C_J	17 pF @ 1 MHz, 4 V - Low junction capacitance reduces capacitive coupling noise and improves high-frequency transient response.

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, glass-passivated silicon die, cathode indicated by band. Leads are pure tin-plated, J-STD-002 solderable, UL 94V-0 molded compound.

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 path).
Cathode	Forward current exit / reverse blocking terminal	Marked with band; ties to output rail or filter capacitor positive; blocks 1000 V reverse during off-state.

Key Features

Feature	Design Value
Glass-passivated junction	Enhances moisture resistance and long-term reliability under thermal cycling and humid environments.
AEC-Q101 qualified variant (UF4007H)	Validated for automotive power electronics requiring stress-tested robustness and zero-defect manufacturing traceability.
Ultrafast 75 ns recovery	Reduces switching loss and EMI in >100 kHz topologies such as LLC resonant converters and PFC stages.
RoHS & halogen-free (IEC 61249-2-21)	Complies with environmental regulations for industrial and consumer end equipment without compromising thermal performance.
Junction temperature range –55 °C to +150 °C	Supports operation in under-hood automotive, outdoor power supplies, and industrial motor drives with wide ambient swings.

Applications

DC–DC Converter	Switching Inverter
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 12–48 V outputs. IC Role / Device Role / Timing Role: High-voltage output rectifier handling 1000 V reverse stress during MOSFET off-time while minimizing conduction loss. Use Value: 1.7 V V_F and 75 ns t_rr reduce total power loss by ~12% vs. standard FR107 in 100 kHz designs.	Use Scenario: Freewheeling path across IGBTs or SiC MOSFETs in three-phase motor drive inverters. IC Role / Device Role / Timing Role: Clamp inductive kickback energy during switching transitions, preventing device overvoltage. Use Value: 30 A I_FSM withstands motor stall surges; 150 °C T_JMAX ensures stability under sustained load.
AC–DC Power Supply	Automotive Onboard Charger (OBC)
Use Scenario: Output rectification in high-efficiency 65–100 W adapter designs with active PFC front-end. IC Role / Device Role / Timing Role: Final-stage unidirectional current path converting high-frequency AC from transformer secondary to regulated DC. Use Value: 17 pF C_J limits capacitive feedthrough noise into feedback loop; DO-41 package allows automated through-hole assembly.	Use Scenario: Auxiliary power supply rectification in 6.6 kW OBC modules operating in engine bay environments. IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier supplying gate drivers and MCU logic from transformer secondary. Use Value: AEC-Q101-qualified UF4007H variant ensures compliance with automotive qualification requirements and lifetime reliability targets.

DC–DC Converter

Switching Inverter

Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 12–48 V outputs.

IC Role / Device Role / Timing Role: High-voltage output rectifier handling 1000 V reverse stress during MOSFET off-time while minimizing conduction loss.

Use Value: 1.7 V V_F and 75 ns t_rr reduce total power loss by ~12% vs. standard FR107 in 100 kHz designs.

Use Scenario: Freewheeling path across IGBTs or SiC MOSFETs in three-phase motor drive inverters.

IC Role / Device Role / Timing Role: Clamp inductive kickback energy during switching transitions, preventing device overvoltage.

Use Value: 30 A I_FSM withstands motor stall surges; 150 °C T_JMAX ensures stability under sustained load.

AC–DC Power Supply

Automotive Onboard Charger (OBC)

Use Scenario: Output rectification in high-efficiency 65–100 W adapter designs with active PFC front-end.

IC Role / Device Role / Timing Role: Final-stage unidirectional current path converting high-frequency AC from transformer secondary to regulated DC.

Use Value: 17 pF C_J limits capacitive feedthrough noise into feedback loop; DO-41 package allows automated through-hole assembly.

Use Scenario: Auxiliary power supply rectification in 6.6 kW OBC modules operating in engine bay environments.

IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier supplying gate drivers and MCU logic from transformer secondary.

Use Value: AEC-Q101-qualified UF4007H variant ensures compliance with automotive qualification requirements and lifetime reliability targets.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06	Same 1 A / 600 V rating; 50 ns t_rr, 1.15 V V_F; TO-220AC package	Lower V_RRM limits use to ≤600 V systems; larger footprint requires heatsinking	Select when lower V_F and faster t_rr outweigh voltage headroom and board space constraints.
ES1J	1 A / 600 V; 35 ns t_rr, 1.7 V V_F; SMA package	SMD-only; no axial leads; lower surge rating (I_FSM = 30 A same, but smaller thermal mass)	Prefer for space-constrained SMT designs where 600 V suffices and reflow compatibility is required.

Compared with STTH1R06 and ES1J, the UF4007 provides unique 1000 V capability in a low-cost, through-hole DO-41 package with proven thermal robustness-ideal for cost-sensitive, high-reliability industrial and automotive auxiliary supplies where voltage margin and manufacturability are prioritized over minimal t_rr.

Availability

UF4007 is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and automotive onboard chargers requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for UF4007 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 automotive markets since 1979.

The UF4007 belongs to TSC's high-voltage ultrafast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in switching-mode applications demanding tight control of reverse recovery and thermal performance.

FAQ

What is the maximum junction temperature rating for the UF4007?

The UF4007 has a maximum junction temperature (T_JMAX) of +150 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (P2104). This rating enables reliable operation in high-ambient environments such as enclosed power supplies or under-hood automotive locations when mounted with adequate thermal relief. Derating curves confirm usable current capacity down to –55 °C storage temperature.

Is the UF4007 pin-compatible with other UF400x series diodes?

Yes-the UF4007 shares identical DO-204AL (DO-41) package dimensions, axial lead configuration, and cathode-band polarity marking with all UF4001–UF4006 variants. Mechanical interchangeability is confirmed in the "PACKAGE OUTLINE DIMENSIONS" section of the Taiwan Semiconductor datasheet (P2104), though electrical parameters (V_RRM, V_F, t_rr) differ per part number.

Does the UF4007 meet automotive qualification standards?

The base UF4007 is not AEC-Q101 qualified, but Taiwan Semiconductor offers the UF4007H variant-identical electrically and mechanically-with full AEC-Q101 stress testing and traceability. The "H" suffix denotes automotive qualification; this version is explicitly listed in the Ordering Information table (P2104) and used in automotive onboard chargers and body control modules.

What is the typical reverse recovery time (t_rr) of the UF4007?

The UF4007 has a maximum reverse recovery time (t_rr) of 75 ns under test 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 (P2104). This ultrafast value is confirmed across the UF4005–UF4007 group and directly enables efficient operation in switching frequencies up to 500 kHz.

How does the UF4007 compare to standard rectifiers like the 1N4007?

The UF4007 differs fundamentally from the 1N4007: it is an ultrafast recovery diode (t_rr = 75 ns) versus the 1N4007's 30 µs recovery, making it suitable for high-frequency SMPS. While both share 1 A / 1000 V ratings and DO-41 packaging, the UF4007's lower V_F (1.7 V vs. ~1.0 V at low current but higher at 1 A), glass passivation, and tighter thermal specs make it superior for modern switching applications.

UF4007 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):: 1000 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 1 A

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

Reverse Recovery Time (trr):: 75 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 1000 V

Capacitance @ Vr, F:: 17pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

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

UF4007 FAQ

1.How can I place an order for UF4007 through Aetrix?

Please submit a Request for Quotation (RFQ) for UF4007 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 UF4007 reliable?

The price and inventory of UF4007 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF4007 is usually 5 days.

3.What payment methods are accepted for UF4007?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF4007 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UF4007?

UF4007 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UF4007 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 UF4007?

For technical support, including UF4007 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF4007 requirements.

6.How does Aetrix verify that UF4007 is sourced from the original manufacturer or authorized distributors?

All UF4007 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 UF4007 meets industry standards.

7.What is the process for return or replacement of UF4007?

All UF4007 units undergo pre-shipment inspection (PSI). If there is an issue with UF4007, 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 UF4007 part is unused and in its original packaging.

Return procedure for UF4007:

1.Submit a request within 90 days.

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

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