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

Vishay General Semiconductor - Diodes Division UF1006-E3/73

Name: UF1006-E3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: UF1006-E3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UF1006-E3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

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

Datasheet:: UF1006-E3/73.pdf

Description:: DIODE GEN PURP 800V 1A DO204AL

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Product details

Overview

UF1006-E3/73 from Vishay General Semiconductor is an ultrafast plastic rectifier diode in DO-41 package, rated for 800 V repetitive peak reverse voltage (V_RRM), 1.0 A average forward current (I_F(AV)), and 75 ns reverse recovery time (t_rr), used for high-frequency freewheeling and output rectification in switching-mode power supplies.

For engineers reviewing the UF1006-E3/73 datasheet, UF1006-E3/73 pinout, UF1006-E3/73 application, or UF1006-E3/73 equivalent, key selection criteria include V_RRM = 800 V, t_rr = 75 ns, I_F(AV) = 1.0 A at 55 °C with 9.5 mm lead length, V_F = 1.7 V at 1.0 A, and DO-41 mechanical compatibility.

Technical Context

This single-die, glass-passivated silicon PN junction rectifier operates with ultrafast switching characteristics enabled by optimized carrier lifetime control. Its 75 ns reverse recovery time and low 1.7 V forward voltage support high-efficiency operation in 20–500 kHz SMPS topologies.

The device features a DO-41 axial package with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102, rated for solder dip at 275 °C for 10 s, and qualified per JESD 201 Class 1A whisker testing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - supports DC bus rectification in 400 VAC input SMPS and industrial inverters
I_F(AV)	1.0 A at 55 °C with 9.5 mm lead length - defines continuous conduction capability under standard thermal conditions
t_rr	75 ns - enables efficient operation up to ~500 kHz without excessive switching loss or EMI
V_F	1.7 V at I_F = 1.0 A - reduces conduction loss and thermal stress in high-duty-cycle freewheeling paths
I_FSM	30 A peak surge (8.3 ms half-sine) - withstands inrush and transient overloads in AC-DC front ends
T_J max.	150 °C - allows reliable operation in enclosed or high-ambient environments with proper PCB copper area
C_J	17 pF at 4.0 V, 1 MHz - limits capacitive coupling noise in high-dv/dt gate-drive or snubber circuits

Pinout & Package

Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating; cathode indicated by color band on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead without band)	Forward current entry point	Connected to lower-potential side (e.g., switch node or transformer secondary center-tap)
Cathode (lead with color band)	Forward current exit / reverse blocking terminal	Connected to output rail or positive bus; blocks 800 V reverse voltage during off-state

Key Features

Feature	Design Value
Glass passivated chip junction	Ensures stable long-term reliability and moisture resistance without hermetic sealing
Ultrafast 75 ns reverse recovery	Minimizes switching loss and ringing in high-frequency flyback and forward converters
Low 1.7 V forward voltage at 1 A	Reduces power dissipation by ~15% vs. comparable 1 A rectifiers with V_F ≥ 1.9 V
30 A non-repetitive surge rating	Provides margin against line transients and startup surges without derating
RoHS-compliant E3 suffix	Meets commercial-grade environmental compliance with JESD 201 Class 1A whisker resistance

Applications

Server Power Supply Rectification	Laptop Adapter Output Stage
Use Scenario: High-efficiency 12 V/19 V output rectification in 65–120 W AC-DC adapters using quasi-resonant flyback topology. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; handles 100–300 kHz switching frequency. Use Value: 75 ns t_rr prevents reverse recovery tail current, reducing EMI and improving efficiency by >0.5% at full load.	Use Scenario: Secondary-side rectification in compact laptop chargers where thermal density and board space are constrained. IC Role / Device Role / Timing Role: Unidirectional current path delivering regulated DC output; operates continuously at 1.0 A average current. Use Value: 1.7 V V_F lowers junction temperature rise by ~8 °C vs. standard fast rectifiers, extending service life.
Industrial Inverter Freewheeling	LED Driver Output Stage
Use Scenario: Freewheeling path across IGBTs in 3-phase motor drives operating at 8–16 kHz PWM frequencies. IC Role / Device Role / Timing Role: Clamps inductive kickback energy during IGBT turn-off; conducts brief high-current pulses. Use Value: 30 A I_FSM rating absorbs repetitive 15–25 A flyback spikes without degradation.	Use Scenario: Constant-current output rectification in isolated LED drivers powering streetlight or architectural modules. IC Role / Device Role / Timing Role: Converts transformer AC output to unidirectional current for LED string biasing. Use Value: DO-41 axial form factor enables manual assembly and rework; UL 94 V-0 compound meets safety standards for outdoor enclosures.

Server Power Supply Rectification

Laptop Adapter Output Stage

Use Scenario: High-efficiency 12 V/19 V output rectification in 65–120 W AC-DC adapters using quasi-resonant flyback topology.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; handles 100–300 kHz switching frequency.

Use Value: 75 ns t_rr prevents reverse recovery tail current, reducing EMI and improving efficiency by >0.5% at full load.

Use Scenario: Secondary-side rectification in compact laptop chargers where thermal density and board space are constrained.

IC Role / Device Role / Timing Role: Unidirectional current path delivering regulated DC output; operates continuously at 1.0 A average current.

Use Value: 1.7 V V_F lowers junction temperature rise by ~8 °C vs. standard fast rectifiers, extending service life.

Industrial Inverter Freewheeling

LED Driver Output Stage

Use Scenario: Freewheeling path across IGBTs in 3-phase motor drives operating at 8–16 kHz PWM frequencies.

IC Role / Device Role / Timing Role: Clamps inductive kickback energy during IGBT turn-off; conducts brief high-current pulses.

Use Value: 30 A I_FSM rating absorbs repetitive 15–25 A flyback spikes without degradation.

Use Scenario: Constant-current output rectification in isolated LED drivers powering streetlight or architectural modules.

IC Role / Device Role / Timing Role: Converts transformer AC output to unidirectional current for LED string biasing.

Use Value: DO-41 axial form factor enables manual assembly and rework; UL 94 V-0 compound meets safety standards for outdoor enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06U	V_RRM = 600 V, t_rr = 65 ns, V_F = 1.6 V at 1 A, DO-41	Lower voltage rating; better speed and lower V_F, but unsuitable for 400 VAC-derived 560 V DC bus	Select when input voltage ≤ 300 VAC and minimal conduction loss is prioritized
1N4937G	V_RRM = 600 V, t_rr = 200 ns, V_F = 1.7 V at 1 A, DO-41	Slower recovery; higher switching loss above 100 kHz; same package and mounting	Acceptable only in low-frequency (< 60 kHz) designs where cost is critical and efficiency less constrained

Compared with STTH1R06U and 1N4937G, UF1006-E3/73 uniquely balances 800 V blocking, 75 ns speed, and DO-41 compatibility-making it optimal for 400 VAC-input SMPS where both voltage margin and high-frequency efficiency are required.

Availability

UF1006-E3/73 is available at Aetrix Electronics and suitable for server power supply rectification, laptop adapter output stages, industrial inverter freewheeling, and LED driver output stages requiring stable component supply and RoHS-compliant sourcing.

Supply support for UF1006-E3/73 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

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and industrial-grade qualification.

The UF100x family was designed for high-frequency switching-mode power conversion, targeting cost-sensitive yet performance-critical applications in computing, telecom, and consumer power supplies.

FAQ

What is the maximum junction temperature rating for UF1006-E3/73?

The UF1006-E3/73 has a maximum junction temperature (T_J) of +150 °C, verified per Vishay's thermal characterization. This rating allows operation in high-ambient environments when mounted with adequate PCB copper area and airflow. Derating curves in the UF1005–UF1007 datasheet confirm sustained 1.0 A I_F(AV) capability up to 55 °C ambient with standard 0.375" lead length.

Is UF1006-E3/73 compatible with lead-free reflow soldering processes?

UF1006-E3/73 is not intended for reflow soldering due to its axial DO-41 package and matte tin-plated leads rated for wave or hand soldering only. It meets JESD 22-B106 for solder dip (275 °C, 10 s max) but lacks IPC/JEDEC reflow profile qualification. For reflow-compatible alternatives, consider surface-mount ultrafast rectifiers like VS-1EFH02HM3.

Does UF1006-E3/73 have a halogen-free option?

Yes-UF1006-M3/73 is the halogen-free, RoHS-compliant variant of the same device, sharing identical electrical and thermal specifications including V_RRM = 800 V, t_rr = 75 ns, and I_F(AV) = 1.0 A. The M3 suffix indicates compliance with Vishay's halogen-free material categorization per doc. 99912.

What is the typical junction capacitance of UF1006-E3/73 and how does it affect circuit performance?

The UF1006-E3/73 exhibits a typical junction capacitance (C_J) of 17 pF at 4.0 V and 1 MHz. This value influences high-frequency noise coupling and snubber design-especially in flyback transformers where C_J interacts with leakage inductance to generate ringing. At 100 kHz, this capacitance contributes < 0.1 Ω capacitive reactance, making it negligible for conduction but relevant in EMI filter sizing.

How does the 75 ns reverse recovery time of UF1006-E3/73 compare to standard fast recovery diodes?

At 75 ns, UF1006-E3/73 delivers true ultrafast performance-approximately 3× faster than standard fast recovery diodes like 1N4937G (200 ns) and 1.5× faster than mid-tier ultrafast types such as UF4007 (100 ns). This reduction directly lowers switching loss and improves efficiency in 200–500 kHz converters, particularly where reverse recovery current causes cross-conduction in synchronous rectified topologies.

UF1006-E3/73 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

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

Packaging:: Tape & Box (TB)

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-204AL (DO-41)

Operating Temperature - Junction:: -40°C ~ 150°C

UF1006-E3/73 FAQ

1.How can I place an order for UF1006-E3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for UF1006-E3/73 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-E3/73 reliable?

The price and inventory of UF1006-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF1006-E3/73 is usually 5 days.

3.What payment methods are accepted for UF1006-E3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF1006-E3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UF1006-E3/73?

UF1006-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UF1006-E3/73 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-E3/73?

For technical support, including UF1006-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF1006-E3/73 requirements.

6.How does Aetrix verify that UF1006-E3/73 is sourced from the original manufacturer or authorized distributors?

All UF1006-E3/73 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-E3/73 meets industry standards.

7.What is the process for return or replacement of UF1006-E3/73?

All UF1006-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with UF1006-E3/73, 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-E3/73 part is unused and in its original packaging.

Return procedure for UF1006-E3/73:

1.Submit a request within 90 days.

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

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