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

Diodes Incorporated UF1006-T

Name: UF1006-T
Brand: Diodes Incorporated
SKU: UF1006-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UF1006-T

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

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

Datasheet:: UF1006-T.pdf

Description:: DIODE GEN PURP 800V 1A DO41

Quantity:: RFQ Add To RFQ list

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Inventory:3,051

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Product details

Overview

UF1006-T from Diodes Incorporated is an ultra-fast recovery rectifier diode with 800 V peak repetitive reverse voltage, 1.0 A average forward current at 55°C, 50 ns reverse recovery time, 1.7 V forward voltage at 1.0 A, and DO-41 axial package-used in high-frequency switching power supplies, DC-DC converters, and snubber circuits.

For engineers reviewing the UF1006-T datasheet, UF1006-T pinout, UF1006-T application, or UF1006-T equivalent, key selection criteria include reverse recovery speed (trr = 50 ns), thermal resistance (R_JA = 95 K/W), surge capability (I_FSM = 30 A), and low leakage (<5 µA @ 25°C) in high-efficiency AC/DC front-end designs.

Technical Context

This diffused-junction silicon rectifier delivers ultra-fast switching performance optimized for high-frequency operation up to several hundred kHz. Its 50 ns reverse recovery time and low junction capacitance (10 pF @ 4 V) minimize switching losses and EMI generation during turn-off transitions.

The device operates across –65°C to +150°C, supports single-phase half-wave rectification under resistive/inductive loads, and requires derating to 0.8 A for capacitive loads per manufacturer guidance. Thermal design must account for R_JA = 95 K/W with leads held at ambient 9.5 mm from case.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Withstands peak reverse transients in 400 VAC input stages without breakdown
I_O	1.0 A @ T_A = 55°C - Sustains continuous output in compact open-frame SMPS designs
t_rr	50 ns - Enables efficient operation in 100–500 kHz flyback and forward converters
V_F	1.7 V @ I_F = 1.0 A - Limits conduction loss to ≤1.7 W at full load, easing thermal management
I_R	5.0 µA @ 25°C - Ensures minimal standby power loss in always-on auxiliary supplies
R_JA	95 K/W - Requires ≥100 mm² copper pad for safe operation at full current in still air

Pinout & Package

DO-41 axial-leaded plastic package with cathode band marking; leads are tin-plated, solderable per MIL-STD-202 Method 208. Weight: 0.35 g. Mounting position: any.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC input or transformer secondary; polarity-sensitive in bridge configurations
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to positive rail or switching node; critical for snubber placement

Key Features

Feature	Design Value
Ultra-fast recovery (t_rr = 50 ns)	Reduces switching loss and ringing in high-frequency SMPS, improving efficiency >2% vs standard rectifiers
Low forward voltage (V_F = 1.7 V)	Minimizes I²R heating at 1 A, enabling smaller heatsinking in space-constrained adapters
30 A non-repetitive surge rating	Withstands inrush currents from cold-started bulk capacitors without degradation
UL 94V-0 flammability rating	Meets safety compliance for enclosed consumer and industrial power supplies

Applications

AC/DC Adapter Front-End

DC-DC Converter Output Rectification

Use Scenario: 10–65 W universal-input offline adapter with 65 kHz flyback topology.

IC Role / Device Role / Timing Role: Primary-side ultra-fast rectifier in voltage-doubler or bridge configuration.

Use Value: 50 ns t_rr suppresses voltage spikes across MOSFETs, reducing need for oversized RCD snubbers.

Use Scenario: 12 V → 3.3 V isolated synchronous buck-derived converter in telecom module.

IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in active-clamp forward circuit.

Use Value: Low V_F and 10 pF C_j cut conduction loss by 18% and improve transient response vs. UF1004.

Snubber Network Diode

Industrial Motor Drive Auxiliary Supply

Use Scenario: RCVD snubber across IGBT in 3 kW variable-frequency drive.

IC Role / Device Role / Timing Role: Fast recovery clamp diode absorbing turn-off energy.

Use Value: 50 ns t_rr ensures clean energy transfer into snubber capacitor, limiting IGBT voltage overshoot to <10%.

Use Scenario: 24 V auxiliary supply powering gate drivers and logic in CNC controller.

IC Role / Device Role / Timing Role: Input rectifier feeding linear regulator from 18 VAC control transformer.

Use Value: 800 V V_RRM accommodates line surges up to 1.2 kV, eliminating need for external TVS.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R08	Same V_RRM (800 V), t_rr = 75 ns, V_F = 1.8 V @ 1 A	Higher trr increases switching loss in >200 kHz designs	Prefer UF1006-T where layout EMI margin is tight
ES1J	V_RRM = 600 V, t_rr = 35 ns, I_O = 1 A, DO-214AA package	Lower voltage rating limits use to ≤277 VAC systems	Select ES1J only if board space allows SMD and input is ≤240 VAC

Compared with STTH1R08 and ES1J, UF1006-T uniquely balances 800 V rating, 50 ns speed, and axial DO-41 fit-making it optimal for legacy through-hole power supplies requiring field-replaceable rectifiers without redesign.

Availability

UF1006-T is available at Aetrix Electronics and suitable for AC/DC adapters, industrial motor drive auxiliary supplies, and DC-DC converter output rectification requiring stable component supply and long-lifecycle support.

Supply support for UF1006-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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal devices for power management, signal integrity, and connectivity applications.

The UF100x series targets cost-sensitive, high-volume power conversion systems where reliability, fast recovery, and standardized axial packaging are essential-especially in universal-input offline SMPS.

FAQ

What is the maximum operating temperature for UF1006-T?

The UF1006-T has a specified junction and storage temperature range of –65°C to +150°C. Its thermal resistance is 95 K/W, so sustained 1.0 A operation at ambient above 55°C requires PCB copper area or airflow to maintain T_J ≤150°C. Derating curves in Figure 1 confirm 0.8 A max at 100°C ambient.

Can UF1006-T replace UF1004 in a 400 V design?

No-UF1004 is rated for 400 V V_RRM, while UF1006-T is rated for 800 V. Substituting UF1006-T into a UF1004 footprint is mechanically feasible (both DO-41), but its higher V_RRM does not degrade performance. However, V_F is higher (1.7 V vs. 1.3 V), increasing conduction loss by ~0.4 W at 1 A.

Is UF1006-T suitable for synchronous rectification?

No-UF1006-T is a passive silicon PN junction diode, not a MOSFET-based synchronous rectifier. It lacks gate control, cannot be actively switched, and exhibits fixed forward voltage drop. For synchronous designs, discrete N-channel MOSFETs (e.g., DMN3025LSD) or integrated controllers are required.

Does UF1006-T meet lead-free and RoHS requirements?

Yes-UF1006-T is manufactured with lead-free terminations and complies with EU RoHS Directive 2011/65/EU and JEDEC JS-001 standards. The device carries the "Pb-Free" marking on packaging and meets exemption 7a for high-melting-point solder alloys used in leadframe plating.

UF1006-T Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

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:: 1.7 V @ 1 A

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

Reverse Recovery Time (trr):: 75 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-41

Operating Temperature - Junction:: -65°C ~ 150°C

UF1006-T FAQ

1.How can I place an order for UF1006-T through Aetrix?

Please submit a Request for Quotation (RFQ) for UF1006-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 UF1006-T reliable?

The price and inventory of UF1006-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF1006-T is usually 5 days.

3.What payment methods are accepted for UF1006-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF1006-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UF1006-T?

UF1006-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UF1006-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 UF1006-T?

For technical support, including UF1006-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF1006-T requirements.

6.How does Aetrix verify that UF1006-T is sourced from the original manufacturer or authorized distributors?

All UF1006-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 UF1006-T meets industry standards.

7.What is the process for return or replacement of UF1006-T?

All UF1006-T units undergo pre-shipment inspection (PSI). If there is an issue with UF1006-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 UF1006-T part is unused and in its original packaging.

Return procedure for UF1006-T:

1.Submit a request within 90 days.

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

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