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

Vishay General Semiconductor - Diodes Division UF1005-E3/54

Name: UF1005-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: UF1005-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UF1005-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

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

Datasheet:: UF1005-E3/54.pdf

Description:: DIODE GEN PURP 600V 1A DO204AL

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Product details

Overview

UF1005-E3/54 from Vishay General Semiconductor is an ultrafast plastic rectifier diode in DO-41 package, rated for 600 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 in high-frequency freewheeling and output rectification in SMPS for consumer and telecom power supplies.

For engineers reviewing the UF1005-E3/54 datasheet, UF1005-E3/54 pinout, UF1005-E3/54 application, or UF1005-E3/54 equivalent, key selection criteria include its 1.7 V forward voltage at 1.0 A, 30 A non-repetitive surge rating, 150 °C max junction temperature, and DO-41 mechanical compatibility with standard through-hole PCB layouts.

Technical Context

This single-die, single-diode configuration uses glass-passivated junction technology to achieve stable ultrafast switching performance. Its 75 ns t_rr and low 17 pF junction capacitance enable efficient operation above 100 kHz in flyback and forward converters.

The device operates across -55 °C to +150 °C junction temperature range with 60 °C/W junction-to-ambient thermal resistance (at 0.375" lead length). It supports soldering per JESD 22-B106 (275 °C, 10 s) and passes JESD 201 Class 1A whisker testing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - blocks up to 600 V repetitive reverse voltage without breakdown in rectifier or freewheeling paths
I_F(AV)	1.0 A - delivers continuous DC output current at 55 °C ambient with 0.375" lead length
t_rr	75 ns - enables high-frequency switching (>100 kHz) with minimal switching loss in SMPS
V_F	1.7 V @ 1.0 A - reduces conduction loss and improves efficiency in low-voltage output stages
I_FSM	30 A - withstands short-duration inrush or fault currents during startup or overload
C_J	17 pF @ 4.0 V, 1 MHz - limits capacitive coupling and EMI generation in fast-switching nodes

Pinout & Package

Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; cathode indicated by color band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node in freewheeling path or transformer secondary center-tap)
Cathode	Forward current exit point	Connected to higher-potential output rail; marked by color band; carries full load current to filter capacitor

Key Features

Feature	Design Value
Glass passivated junction	Ensures long-term reliability and stable leakage current (<5 μA at 25 °C) under thermal cycling and humidity stress
Ultrafast recovery (75 ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in high-frequency converters
Low V_F (1.7 V)	Lowers conduction loss and thermal rise in 1 A-class output rectifiers, easing heatsinking requirements
High I_FSM (30 A)	Provides margin against transient overcurrent events such as output short-circuit or cold-start surges

Applications

AC-DC Adapter Output Rectification	DC-DC Flyback Freewheeling Diode
Use Scenario: Converts high-frequency transformer secondary AC into regulated 5 V/12 V DC for USB chargers and wall adapters. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer demagnetization phase; handles 1 A average current with <75 ns turn-off. Use Value: Low V_F minimizes power loss in compact enclosures; DO-41 footprint simplifies manual or wave-solder assembly.	Use Scenario: Provides freewheeling path for primary-side energy transfer in isolated 10–30 W offline flyback converters. IC Role / Device Role / Timing Role: Freewheeling diode clamping transformer reset voltage; recovers before next switching cycle at >65 kHz. Use Value: 75 ns t_rr prevents reverse recovery-induced voltage spikes and MOSFET stress during high-duty-cycle operation.
Telecom Power Supply Input Bridge Leg	Industrial SMPS Snubber Clamp
Use Scenario: Used as one leg in discrete bridge rectifier for 48 V telecom system front-end AC-DC conversion. IC Role / Device Role / Timing Role: High-voltage (600 V) rectifying element handling line-frequency input with surge immunity. Use Value: 30 A I_FSM accommodates lightning-induced line surges; 150 °C T_J(max) supports operation in sealed chassis.	Use Scenario: Clamps voltage spikes across switching MOSFETs in industrial motor drive auxiliary supplies. IC Role / Device Role / Timing Role: Snubber diode absorbing inductive kickback energy during MOSFET turn-off. Use Value: Fast recovery and low C_J reduce snubber dissipation and improve clamp timing accuracy.

AC-DC Adapter Output Rectification

DC-DC Flyback Freewheeling Diode

Use Scenario: Converts high-frequency transformer secondary AC into regulated 5 V/12 V DC for USB chargers and wall adapters.

IC Role / Device Role / Timing Role: Output rectifier conducting during transformer demagnetization phase; handles 1 A average current with <75 ns turn-off.

Use Value: Low V_F minimizes power loss in compact enclosures; DO-41 footprint simplifies manual or wave-solder assembly.

Use Scenario: Provides freewheeling path for primary-side energy transfer in isolated 10–30 W offline flyback converters.

IC Role / Device Role / Timing Role: Freewheeling diode clamping transformer reset voltage; recovers before next switching cycle at >65 kHz.

Use Value: 75 ns t_rr prevents reverse recovery-induced voltage spikes and MOSFET stress during high-duty-cycle operation.

Telecom Power Supply Input Bridge Leg

Industrial SMPS Snubber Clamp

Use Scenario: Used as one leg in discrete bridge rectifier for 48 V telecom system front-end AC-DC conversion.

IC Role / Device Role / Timing Role: High-voltage (600 V) rectifying element handling line-frequency input with surge immunity.

Use Value: 30 A I_FSM accommodates lightning-induced line surges; 150 °C T_J(max) supports operation in sealed chassis.

Use Scenario: Clamps voltage spikes across switching MOSFETs in industrial motor drive auxiliary supplies.

IC Role / Device Role / Timing Role: Snubber diode absorbing inductive kickback energy during MOSFET turn-off.

Use Value: Fast recovery and low C_J reduce snubber dissipation and improve clamp timing accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06U	600 V V_RRM, 1.0 A I_F(AV), 65 ns t_rr, TO-220AC package	Higher thermal mass but requires heatsink; not drop-in compatible with DO-41 layout	Select when higher surge robustness and board-level thermal management are prioritized over space-constrained through-hole assembly.
ON Semiconductor MUR1060	600 V V_RRM, 1.0 A I_F(AV), 60 ns t_rr, DO-41 package, 1.85 V V_F	Slightly higher forward drop increases conduction loss; identical footprint and polarity marking	Choose when faster recovery is critical and 0.15 V higher V_F is acceptable for the target efficiency budget.

Compared with STTH1R06U and MUR1060, UF1005-E3/54 offers optimal balance of DO-41 compatibility, 1.7 V V_F, and 75 ns t_rr for cost-sensitive, space-constrained 1 A SMPS designs where thermal design margin is moderate.

Availability

UF1005-E3/54 is available at Aetrix Electronics and suitable for AC-DC adapters, telecom power modules, industrial SMPS, and flyback converter designs requiring stable component supply, RoHS-compliant commercial-grade rectification, and proven DO-41 manufacturability.

Supply support for UF1005-E3/54 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 series targets high-frequency power conversion applications, delivering ultrafast recovery and low forward voltage in standardized axial packages for broad compatibility across consumer, computing, and communications power supplies.

FAQ

What is the maximum junction temperature rating for UF1005-E3/54?

The UF1005-E3/54 has a maximum operating junction temperature of +150 °C, enabling reliable operation in enclosed or thermally constrained environments such as sealed power adapters and industrial control units. This rating is validated per Vishay's thermal characterization and allows derating to 1.0 A average current at 55 °C ambient with standard 0.375" lead length. The UF1005-E3/54 maintains stable reverse leakage (<50 μA at 100 °C) within this range.

Is UF1005-E3/54 RoHS-compliant and halogen-free?

Yes, UF1005-E3/54 is RoHS-compliant (per EU Directive 2011/65/EU) and carries the "E3" suffix indicating commercial-grade, lead-free, matte tin-plated leads. It is not halogen-free; for halogen-free compliance, the "M3" suffix variant (e.g., UF1005-M3/54) must be selected. Both E3 and M3 variants meet JESD 201 Class 1A whisker testing requirements.

What does the "/54" suffix mean in UF1005-E3/54?

The "/54" suffix in UF1005-E3/54 denotes the preferred packaging code for 13-inch diameter paper tape and reel, containing 5500 units per reel. This format supports automated pick-and-place assembly and is standard for high-volume manufacturing. The "E3" prefix confirms RoHS-compliant, commercial-grade construction with matte tin leads.

How does UF1005-E3/54 compare to UF1006-E3/54 in terms of voltage rating?

UF1005-E3/54 is rated for 600 V maximum repetitive peak reverse voltage (V_RRM), while UF1006-E3/54 is rated for 800 V V_RRM. All other key parameters-including I_F(AV) (1.0 A), t_rr (75 ns), V_F (1.7 V), and package (DO-41)-are identical. Selection depends strictly on system-level reverse voltage stress; UF1005-E3/54 is appropriate for ≤600 V applications such as universal-input 85–265 VAC SMPS with adequate derating.

Can UF1005-E3/54 replace a standard 1N4007 in a switching power supply?

No-UF1005-E3/54 is not a direct replacement for 1N4007 in switching applications. While both are DO-41 diodes, the 1N4007 has 30 μs t_rr and is intended for 50/60 Hz rectification. Using it in high-frequency SMPS causes excessive switching loss and overheating. UF1005-E3/54's 75 ns t_rr makes it suitable for such use, but its 600 V rating is lower than 1N4007's 1000 V; verify system voltage stress before substitution. The UF1005-E3/54 is purpose-built for high-frequency operation.

UF1005-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 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 @ 600 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

Operating Temperature - Junction:: -65°C ~ 180°C

UF1005-E3/54 FAQ

1.How can I place an order for UF1005-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for UF1005-E3/54 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 UF1005-E3/54 reliable?

The price and inventory of UF1005-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF1005-E3/54 is usually 5 days.

3.What payment methods are accepted for UF1005-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF1005-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UF1005-E3/54?

UF1005-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UF1005-E3/54 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 UF1005-E3/54?

For technical support, including UF1005-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF1005-E3/54 requirements.

6.How does Aetrix verify that UF1005-E3/54 is sourced from the original manufacturer or authorized distributors?

All UF1005-E3/54 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 UF1005-E3/54 meets industry standards.

7.What is the process for return or replacement of UF1005-E3/54?

All UF1005-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with UF1005-E3/54, 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 UF1005-E3/54 part is unused and in its original packaging.

Return procedure for UF1005-E3/54:

1.Submit a request within 90 days.

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

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