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Vishay General Semiconductor - Diodes Division UF1006-E3/54
- Part No.:
- UF1006-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
UF1006-E3/54.pdf
- Description:
- DIODE GEN PURP 800V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,550
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Product details
Overview
UF1006-E3/54 from Vishay General Semiconductor is an ultrafast plastic rectifier diode in DO-41 package, rated for 800 V repetitive peak reverse voltage (VRRM), 1.0 A average forward current (IF(AV)), and 75 ns reverse recovery time (trr). It features low forward voltage drop (1.7 V at 1.0 A), high surge capability (30 A IFSM), and operates up to 150 °C junction temperature - used in high-frequency freewheeling paths of SMPS and DC-DC inverters.
For engineers reviewing the UF1006-E3/54 datasheet, UF1006-E3/54 pinout, UF1006-E3/54 application, or UF1006-E3/54 equivalent, key selection criteria include VRRM margin for 400–600 V bus designs, trr-driven switching loss trade-offs in 50–500 kHz converters, thermal resistance (RθJA = 60 °C/W), and DO-41 lead-form compatibility with legacy through-hole layouts.
Technical Context
This single-die, single-anode/cathode ultrafast rectifier uses glass-passivated PN junction technology optimized for reduced minority-carrier lifetime, enabling fast turn-off without soft-recovery tail. Its 75 ns trr is measured under standardized conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A), supporting efficient operation in discontinuous conduction mode (DCM) flyback and forward converters.
The device exhibits 17 pF junction capacitance at 4.0 V / 1 MHz and 5 μA reverse leakage at 25 °C - parameters critical for EMI filtering design and high-impedance bias networks. Thermal performance is defined for 0.375" (9.5 mm) lead length, with RθJL = 15 °C/W indicating effective heat conduction through leads to PCB copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification for 560 V RMS AC lines or 600 V DC bus with 25 % safety margin |
| IF(AV) | 1.0 A at TA = 55 °C - defines continuous output current capability in open-frame power supplies |
| trr | 75 ns - limits reverse recovery charge (Qrr ≈ 22.5 nC typical), reducing switching losses in 100–300 kHz topologies |
| VF | 1.7 V at IF = 1.0 A - determines conduction loss (1.7 W max at full load), impacting thermal design and efficiency |
| IFSM | 30 A - withstands inrush and transient surges during cold-start or short-circuit recovery |
| TJ max. | 150 °C - enables operation in sealed enclosures or high-ambient industrial environments |
| CJ | 17 pF at 4 V - affects high-frequency noise coupling and snubber sizing in resonant circuits |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with UL 94 V-0 rating. Cathode indicated by color band on body. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode (banded end) | Forward current exit point | Connected to output capacitor positive rail or freewheeling path return, defining output polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable long-term reliability under thermal cycling and humidity exposure per JESD22-A110 |
| Ultrafast trr = 75 ns | Reduces reverse recovery energy dissipation by >60 % versus standard recovery rectifiers in same package |
| Low VF = 1.7 V | Lowers conduction loss by ~15 % compared to 1N4007 (1.95 V) at 1 A, improving light-load efficiency |
| High IFSM = 30 A | Supports robust startup in offline adapters without external surge limiting resistors |
| RoHS-compliant E3 suffix | Meets EU Directive 2011/65/EU and JEDEC J-STD-609A Class 1A for lead-free assembly |
Applications
| AC-DC Adapter Output Stage | DC-DC Flyback Secondary Rectification |
|---|---|
Use Scenario: 12 V / 0.8 A output in universal-input (90–264 VAC) wall adapter with 65 kHz flyback controller. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during transformer reset phase; clamps secondary voltage and delivers energy to output capacitor. Use Value: 75 ns trr minimizes voltage overshoot across MOSFET and reduces need for RC snubbers, lowering BOM count. | Use Scenario: Isolated 5 V / 1.0 A auxiliary supply in telecom power module with synchronous rectification not implemented. IC Role / Device Role / Timing Role: Uncontrolled secondary-side rectifier; conducts only when secondary winding voltage exceeds output capacitor voltage. Use Value: 1.7 V VF ensures <1.7 W conduction loss at full load, simplifying heatsinking in space-constrained modules. |
| Industrial Inverter Freewheeling Diode | UPS Battery Charging Circuit |
Use Scenario: Bidirectional IGBT gate drive protection and motor winding freewheeling in 24 V DC-fed 3-phase inverter. IC Role / Device Role / Timing Role: Clamp diode providing low-impedance path for inductive kickback during IGBT turn-off. Use Value: 30 A IFSM handles repeated 25 A motor stall currents without degradation over 10⁵ cycles. | Use Scenario: Half-wave rectification stage in 24 V battery charger with transformer-isolated input and linear regulation. IC Role / Device Role / Timing Role: Input-side rectifier converting transformer secondary AC to unregulated DC prior to series pass transistor. Use Value: 800 V VRRM provides margin against reflected transients from relay switching and line surges in industrial mains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | VRRM = 600 V, trr = 50 ns, VF = 1.6 V, DO-41 package | Lower voltage rating; faster recovery but less margin for 400 V DC bus | Select when priority is minimizing Qrr in high-frequency (>300 kHz) designs and VRRM ≤ 600 V suffices |
| 1N4936GP | VRRM = 800 V, trr = 200 ns, VF = 1.7 V, DO-41 package | Slower recovery increases switching loss; identical thermal and voltage specs | Choose where cost sensitivity outweighs efficiency targets and trr > 150 ns is acceptable |
Compared with STTH1R06 and 1N4936GP, UF1006-E3/54 uniquely balances 800 V standoff, 75 ns speed, and 1.7 V conduction loss in a RoHS-compliant DO-41 package - making it optimal for mid-frequency (100–250 kHz) industrial and telecom SMPS where both voltage margin and recovery loss matter.
Availability
UF1006-E3/54 is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC flyback converters, and industrial inverter freewheeling circuits requiring stable component supply, consistent lead-time visibility, and traceable RoHS-compliant sourcing.
Supply support for UF1006-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, ruggedness, and application-specific optimization.
The UF100x family was engineered for high-efficiency, high-reliability rectification in switching-mode power supplies - targeting cost-sensitive yet thermally demanding consumer, computing, and telecom applications where DO-41 footprint and proven field performance are essential.
FAQ
What is the maximum junction temperature rating for UF1006-E3/54?
The UF1006-E3/54 has a maximum operating junction temperature (TJ max.) of +150 °C, verified per Vishay's thermal characterization in Document Number 89880. This rating allows reliable operation in enclosed industrial power supplies and automotive under-hood auxiliary converters where ambient temperatures exceed 85 °C. Derating curves confirm 1.0 A IF(AV) is maintained up to 55 °C ambient with 0.375" lead length.
Does UF1006-E3/54 have a halogen-free option?
Yes - the UF1006-M3/54 variant is halogen-free, RoHS-compliant, and commercial grade, sharing identical electrical and thermal specifications with UF1006-E3/54. The M3 suffix indicates compliance with IEC 61249-2-21 and JEDEC JS709B, while E3 denotes standard RoHS compliance without halogen restriction. Both use matte tin-plated leads and meet JESD 201 Class 1A whisker testing.
What is the reverse recovery time test condition for UF1006-E3/54?
The specified trr = 75 ns for UF1006-E3/54 is measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per JEDEC standard test methodology. These conditions reflect realistic switching behavior in flyback and forward converters. The value is typical and guaranteed not to exceed 100 ns across temperature and process variation, as confirmed in the Electrical Characteristics table of Vishay Document 89880.
Can UF1006-E3/54 replace UF1005-E3/54 in existing designs?
Yes - UF1006-E3/54 is a direct upgrade from UF1005-E3/54 in DO-41 package with identical pinout, thermal resistance, and forward characteristics (VF = 1.7 V, IF(AV) = 1.0 A), but offers higher VRRM (800 V vs. 600 V) and same trr (75 ns). No PCB or layout changes are required; the increased voltage margin improves surge immunity in 230 VAC-input systems without affecting thermal or efficiency performance.
Is UF1006-E3/54 suitable for synchronous rectification circuits?
No - UF1006-E3/54 is a passive silicon PN junction rectifier and cannot be used as a synchronous rectifier. Synchronous rectification requires actively controlled MOSFETs with gate drive timing aligned to transformer voltage polarity. UF1006-E3/54 serves only as a freewheeling or output rectifier in non-synchronous topologies; its 75 ns trr helps reduce losses where MOSFET-based sync rectification is not implemented due to cost or complexity constraints.
UF1006-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):
- 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:
- -65°C ~ 180°C
UF1006-E3/54 FAQ
1.How can I place an order for UF1006-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for UF1006-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 UF1006-E3/54 reliable?
The price and inventory of UF1006-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 UF1006-E3/54 is usually 5 days.
3.What payment methods are accepted for UF1006-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF1006-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF1006-E3/54?
UF1006-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF1006-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 UF1006-E3/54?
For technical support, including UF1006-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF1006-E3/54 requirements.
6.How does Aetrix verify that UF1006-E3/54 is sourced from the original manufacturer or authorized distributors?
All UF1006-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 UF1006-E3/54 meets industry standards.
7.What is the process for return or replacement of UF1006-E3/54?
All UF1006-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with UF1006-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 UF1006-E3/54 part is unused and in its original packaging.
Return procedure for UF1006-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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