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

Taiwan Semiconductor Corporation UF4007 B0G

Name: UF4007 B0G
Brand: Taiwan Semiconductor Corporation
SKU: UF4007 B0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UF4007 B0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: UF4007 B0G.pdf

Description:: DIODE GEN PURP 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:4,400

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Product details

Overview

UF4007 B0G from Taiwan Semiconductor is a 1A, 1000V ultrafast recovery rectifier diode in DO-204AL (DO-41) package, featuring 1.7V forward voltage at 1A and 75ns reverse recovery time. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.

For engineers reviewing the UF4007 B0G datasheet, UF4007 B0G pinout, UF4007 B0G application, or UF4007 B0G equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (R_θJL = 15°C/W), junction temperature range (–55°C to +150°C), and AEC-Q101 qualification status of related variants.

Technical Context

The UF4007 B0G is a single-die, glass-passivated silicon PN junction rectifier optimized for high-efficiency DC/DC conversion. Its 1000V V_RRM, 30A I_FSM, and low 17pF junction capacitance support stable operation in 100kHz+ switching topologies.

Designed for high-temperature reliability, it maintains ≤5µA reverse leakage at 25°C and ≤150µA at 125°C under rated reverse voltage, with thermal performance defined by R_θJA = 60°C/W and R_θJL = 15°C/W - enabling direct lead-mount thermal management in compact layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - supports input rectification in 800V AC line or 600V DC bus systems without derating
I_F	1 A continuous - suitable for low-to-medium power SMPS outputs up to ~15W at full load
t_rr	75 ns - minimizes switching losses in 100–500 kHz converters, reducing EMI generation
V_F	1.7 V @ 1A, 25°C - contributes to <1.7W conduction loss per diode at full current
R_θJL	15 °C/W - enables direct heat transfer to PCB copper or heatsink via leads, critical for ambient >85°C operation
Junction Temp	–55°C to +150°C - validated for automotive under-hood and industrial control environments

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, glass-passivated, RoHS- and halogen-free compliant. Cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead without band)	Forward current entry point	Connected to lower-potential node (e.g., switch node in flyback secondary or buck freewheel path)
Cathode (lead with band)	Forward current exit / reverse blocking terminal	Connected to output rail or positive bus; blocks 1000V reverse during off-state

Key Features

Feature	Design Value
Ultrafast recovery (75 ns)	Reduces turn-off energy loss and di/dt-induced voltage spikes in hard-switched topologies
Glass passivated junction	Ensures long-term reliability against moisture ingress and surface contamination in humid environments
150°C max junction temperature	Supports operation in sealed enclosures or near heat-generating components without forced cooling
Pure tin-plated leads	Guarantees solderability per J-STD-002 and eliminates whisker growth risk per JESD201 Class 2

Applications

DC/DC Converter Output Rectification	Switch-Mode Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24V at ≤1A. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 75ns t_rr and 1.7V V_F jointly limit conduction and switching losses, sustaining >88% efficiency at 250kHz.	Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in half-bridge inverters. IC Role / Device Role / Timing Role: Provides low-impedance return path for inductor current during high-side switch off-time. Use Value: 1000V V_RRM withstands voltage spikes from L·di/dt transients; 30A I_FSM handles surge currents during fault conditions.
AC-DC Adapter Input Bridge	Industrial Power Supply Snubber Clamp
Use Scenario: One leg of discrete bridge rectifier in universal-input (90–264V AC) offline adapters. IC Role / Device Role / Timing Role: Converts AC line input to pulsating DC before bulk capacitor filtering. Use Value: 1000V rating allows direct use on 230V AC mains with margin; DO-41 package enables manual or auto-insertion in cost-sensitive designs.	Use Scenario: Clamp diode in RCD snubber network across MOSFET drain-source in flyback or LLC resonant converters. IC Role / Device Role / Timing Role: Conducts transient energy from leakage inductance into snubber capacitor during MOSFET turn-off. Use Value: Fast 75ns recovery ensures rapid turn-on to capture energy before voltage overshoot exceeds safe limits; 17pF C_J minimizes capacitive loading on switching node.

DC/DC Converter Output Rectification

Switch-Mode Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24V at ≤1A.

IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output.

Use Value: 75ns t_rr and 1.7V V_F jointly limit conduction and switching losses, sustaining >88% efficiency at 250kHz.

Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in half-bridge inverters.

IC Role / Device Role / Timing Role: Provides low-impedance return path for inductor current during high-side switch off-time.

Use Value: 1000V V_RRM withstands voltage spikes from L·di/dt transients; 30A I_FSM handles surge currents during fault conditions.

AC-DC Adapter Input Bridge

Industrial Power Supply Snubber Clamp

Use Scenario: One leg of discrete bridge rectifier in universal-input (90–264V AC) offline adapters.

IC Role / Device Role / Timing Role: Converts AC line input to pulsating DC before bulk capacitor filtering.

Use Value: 1000V rating allows direct use on 230V AC mains with margin; DO-41 package enables manual or auto-insertion in cost-sensitive designs.

Use Scenario: Clamp diode in RCD snubber network across MOSFET drain-source in flyback or LLC resonant converters.

IC Role / Device Role / Timing Role: Conducts transient energy from leakage inductance into snubber capacitor during MOSFET turn-off.

Use Value: Fast 75ns recovery ensures rapid turn-on to capture energy before voltage overshoot exceeds safe limits; 17pF C_J minimizes capacitive loading on switching node.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06	1A, 600V, 75ns t_rr, VF = 1.5V @ 1A - lower V_RRM, slightly lower V_F	Not suitable for 800–1000V bus applications; requires redesign if system peak reverse exceeds 600V	Select when operating below 600V reverse stress and lower conduction loss is prioritized over voltage margin
ON Semiconductor MUR110	1A, 1000V, 75ns t_rr, VF = 1.7V @ 1A - identical core specs; DO-41, RoHS-compliant	No functional difference; validated in same automotive-grade production lots	Drop-in alternative with identical electrical and mechanical behavior; preferred where dual-sourcing is required

Compared with STTH1R06, UF4007 B0G provides essential 1000V blocking for high-line or PFC-stage applications; versus MUR110, it offers equivalent performance but differs in marking, date code format, and traceability documentation - both support identical thermal and layout integration.

Availability

UF4007 B0G is available at Aetrix Electronics and suitable for DC/DC converter output rectification, switch-mode inverter freewheeling, and AC-DC adapter input bridge applications requiring stable component supply and long-term industrial availability.

Supply support for UF4007 B0G 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors.

The UF400x series was developed for high-reliability power conversion in automotive, industrial, and consumer power supplies - emphasizing ultrafast recovery, thermal robustness, and AEC-Q101 qualification readiness.

FAQ

What is the maximum repetitive peak reverse voltage rating of UF4007 B0G?

The UF4007 B0G has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V. This rating is specified per the Taiwan Semiconductor datasheet Version P2104 and defines the highest instantaneous reverse voltage the diode can block repeatedly without breakdown. It enables use in 230V AC mains-derived supplies and high-voltage DC bus applications where transient margins exceed 800V. The UF4007 B0G must not be operated beyond this limit under any condition.

Does UF4007 B0G meet AEC-Q101 qualification requirements?

The UF4007 B0G itself is not AEC-Q101 qualified; only variants marked with "H" suffix (e.g., UF4007H) are AEC-Q101 qualified per the ordering information table. The "B0G" suffix indicates green compound and ammo box packaging (3,000 units), but no automotive qualification. For automotive applications, engineers must specify UF4007H or confirm qualification status directly with Taiwan Semiconductor prior to design-in.

What is the forward voltage drop of UF4007 B0G at rated current?

The UF4007 B0G exhibits a typical forward voltage (V_F) of 1.7 V at 1 A and 25°C junction temperature, as confirmed in the Electrical Specifications table. This value increases with temperature and current - at 125°C, V_F rises to approximately 1.45 V due to negative temperature coefficient. Designers should use this 1.7 V figure for worst-case conduction loss calculation at room temperature.

How does the reverse recovery time of UF4007 B0G impact EMI in switching circuits?

The 75 ns reverse recovery time (t_rr) of UF4007 B0G directly affects high-frequency EMI generation during turn-off. Faster recovery reduces the duration of reverse recovery current (I_RR) and associated di/dt, lowering radiated emissions from parasitic loop inductance. In practice, this enables cleaner switching node waveforms in 200–500 kHz converters compared to standard recovery rectifiers, easing EMI filter design and compliance testing for UF4007 B0G-based power stages.

What is the thermal resistance from junction to lead for UF4007 B0G?

The junction-to-lead thermal resistance (R_θJL) of UF4007 B0G is 15°C/W, as specified in the Thermal Performance section. This parameter quantifies how effectively heat flows from the silicon die to the device leads, enabling direct conduction to PCB copper pours or external heatsinks. It is measured under standard test conditions (steady-state, no airflow) and forms the basis for calculating allowable power dissipation when leads are thermally anchored - critical for derating in enclosed or high-ambient environments.

UF4007 B0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Bulk

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 B0G FAQ

1.How can I place an order for UF4007 B0G through Aetrix?

Please submit a Request for Quotation (RFQ) for UF4007 B0G 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 B0G reliable?

The price and inventory of UF4007 B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF4007 B0G is usually 5 days.

3.What payment methods are accepted for UF4007 B0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF4007 B0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UF4007 B0G?

UF4007 B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UF4007 B0G 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 B0G?

For technical support, including UF4007 B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF4007 B0G requirements.

6.How does Aetrix verify that UF4007 B0G is sourced from the original manufacturer or authorized distributors?

All UF4007 B0G 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 B0G meets industry standards.

7.What is the process for return or replacement of UF4007 B0G?

All UF4007 B0G units undergo pre-shipment inspection (PSI). If there is an issue with UF4007 B0G, 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 B0G part is unused and in its original packaging.

Return procedure for UF4007 B0G:

1.Submit a request within 90 days.

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

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