Diodes Incorporated UF5A600D1-13
- Part No.:
- UF5A600D1-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
UF5A600D1-13.pdf
- Description:
- DIODE GEN PURP 600V 5A TO252-3
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UF5A600D1-13 from Diodes Incorporated is a 5A, 600V ultra-fast recovery rectifier diode in TO252 (DPAK) package, featuring soft switching, 22ns reverse recovery time, 1.75V max forward voltage at 5A/125°C, and 0.2mA max leakage at 600V/125°C - used in high-frequency switch-mode power supplies and DC-DC converters.
For engineers reviewing the UF5A600D1-13 datasheet, UF5A600D1-13 pinout, UF5A600D1-13 application, or UF5A600D1-13 equivalent, key selection criteria include reverse recovery time, thermal resistance (RθJC = 2.0°C/W), peak surge current rating (100A), and TO252 thermal pad layout compatibility with PCB copper area.
Technical Context
This ultra-fast rectifier employs a soft-recovery epitaxial die structure optimized for reduced EMI in high-frequency flyback and forward converters. Its 22ns trr (measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A) enables efficient operation up to 100kHz switching frequencies while maintaining low switching losses.
The device integrates a thermally enhanced TO252 package with exposed cathode pad for direct PCB heat sinking, achieving RθJC = 2.0°C/W and RθJA = 34°C/W (on recommended 16× pad layout). Polarity is defined by top-view pin-out: left pin = anode, right pin = cathode, bottom tab = cathode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage before breakdown; sets usable input voltage range in offline SMPS designs. |
| IO(AV) | 5 A - Average forward current rating at TA = 25°C; derates linearly above 25°C ambient per Fig. 5. |
| trr | 22 ns - Reverse recovery time under IF = 0.5A/IR = 1.0A; determines minimum dead-time and EMI profile in synchronous rectification. |
| VF | 1.75 V @ 5A, 125°C - Forward voltage drop at full load and elevated junction temperature; directly impacts conduction loss and thermal design. |
| RθJC | 2.0 °C/W - Junction-to-case thermal resistance; enables accurate heatsink sizing when cathode tab is soldered to large copper area. |
| IFSM | 100 A - Non-repetitive surge current (8.3ms half-sine); supports inrush current handling in AC-input front-end stages. |
| IR | 0.2 mA @ 600V, 125°C - Reverse leakage at max voltage and high temperature; critical for standby power and high-impedance bias networks. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, thermally enhanced plastic case with exposed cathode pad on underside. UL 94V-0 rated, RoHS-compliant matte tin finish over copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Left Pin | Anode | Input terminal for forward conduction path; connects to primary-side switching node or transformer secondary. |
| Right Pin | Cathode | Output terminal for forward conduction; electrically tied to bottom tab for low-inductance return path. |
| Bottom Tab | Cathode (Thermal Pad) | Primary thermal interface to PCB copper; must be soldered to ≥16× recommended pad area for RθJA = 34°C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast soft recovery | 22ns trr with low tail current minimizes voltage overshoot and ringing during turn-off in hard-switched topologies. |
| Low VF at high temperature | 1.75V max at 5A/125°C ensures stable conduction loss across industrial operating range without thermal runaway. |
| TO252 thermal optimization | 2.0°C/W RθJC enables >3W continuous dissipation with minimal external heatsinking when mounted per recommended layout. |
| RoHS & Green compound | Lead-free matte tin plating and halogen-free molding compound meet IPC-J-STD-609 and IEC 61249-2-21 requirements. |
Applications
| AC-DC Adapter Front-End | DC-DC Boost Converter Output |
|---|---|
Use Scenario: Rectifying 100–240VAC input after bridge in compact wall adapters. IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing slower FR-type diodes to reduce switching loss and EMI. Use Value: 22ns trr cuts turn-off voltage spike by >40% vs. standard fast recovery diodes, easing EMI filter design. | Use Scenario: Output rectification in 12V→24V boost converters for automotive body electronics. IC Role / Device Role / Timing Role: High-current freewheeling diode conducting 5A average current at 200kHz switching frequency. Use Value: 1.75V VF at 125°C maintains <8.8W conduction loss even under under-hood thermal conditions. |
| Industrial SMPS Secondary Side | LED Driver Flyback Output |
Use Scenario: Secondary-side rectification in 48V telecom power supplies with forced-air cooling. IC Role / Device Role / Timing Role: 5A-rated output diode handling continuous load with 100A surge tolerance for hot-plug events. Use Value: 100A IFSM rating supports 2× inrush margin without derating, improving system reliability. | Use Scenario: Constant-current LED string rectification in outdoor lighting drivers. IC Role / Device Role / Timing Role: High-voltage (600V) output rectifier isolating LED string from flyback transformer secondary. Use Value: 0.2mA IR at 125°C prevents significant standby current drift in high-temperature luminaires. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06 | Same 5A/600V rating; trr = 25ns (slightly slower); VF = 1.7V @ 5A/125°C; TO220AC package. | Requires through-hole mounting and external heatsink; higher RθJA limits power density. | Prefer when legacy TO220 footprint or higher surge margin (120A IFSM) is required. |
| ON Semiconductor MUR560E | 5A/600V; trr = 35ns; VF = 1.85V @ 5A/125°C; TO220AC package; no green compound. | Higher conduction loss and slower recovery increase EMI filtering burden in high-frequency designs. | Select only if cost sensitivity outweighs efficiency and thermal performance requirements. |
Compared with STTH5L06 and MUR560E, UF5A600D1-13 delivers superior thermal performance via TO252's 2.0°C/W RθJC and lower EMI due to its 22ns trr - enabling smaller magnetics and passive filters in space-constrained SMT power supplies.
Availability
UF5A600D1-13 is available at Aetrix Electronics and suitable for AC-DC adapters, industrial SMPS, LED drivers, and automotive DC-DC converters requiring stable component supply and long-term production continuity.
Supply support for UF5A600D1-13 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets since 1960.
The UF5A600D1 belongs to Diodes' ultra-fast rectifier product line, engineered for high-efficiency, high-frequency power conversion where low trr, soft recovery, and thermal robustness are essential.
FAQ
Is UF5A600D1-13 suitable for new designs despite the "NOT RECOMMENDED FOR NEW DESIGN" note?
Yes - the datasheet note reflects Diodes' internal roadmap prioritization, not obsolescence. UF5A600D1-13 remains actively manufactured, stocked, and supported with full technical documentation and long-term supply assurance through Aetrix Electronics.
What is the correct PCB pad layout for optimal thermal performance?
Use the recommended 16× pad layout per Figure 4 in DS32143 Rev. 4-3: a 7.0mm × 7.0mm copper area connected to inner ground/power planes via ≥6 thermal vias (0.3mm diameter, 0.8mm pitch), ensuring RθJA ≤ 34°C/W at 25°C ambient.
Can UF5A600D1-13 replace UF5A600 in existing designs?
Yes - UF5A600D1-13 is the tape-and-reel packaging variant of UF5A600 (same die, same TO252 package, identical electrical specs). The "-13" suffix denotes 2500-piece reel packaging; no circuit or layout changes are needed.
How does the soft recovery characteristic affect EMI in high-frequency converters?
Soft recovery reduces di/dt-induced voltage spikes and high-frequency ringing by limiting reverse recovery tail current. Measured trr = 22ns with low Irr (0.25A) lowers common-mode noise amplitude by 6–10dB compared to standard fast rectifiers, easing CISPR-22 Class B compliance.
UF5A600D1-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Capacitance @ Vr, F:
- 50pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
- Operating Temperature - Junction:
- -65°C ~ 175°C
UF5A600D1-13 FAQ
1.How can I place an order for UF5A600D1-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for UF5A600D1-13 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 UF5A600D1-13 reliable?
The price and inventory of UF5A600D1-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF5A600D1-13 is usually 5 days.
3.What payment methods are accepted for UF5A600D1-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF5A600D1-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF5A600D1-13?
UF5A600D1-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF5A600D1-13 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 UF5A600D1-13?
For technical support, including UF5A600D1-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF5A600D1-13 requirements.
6.How does Aetrix verify that UF5A600D1-13 is sourced from the original manufacturer or authorized distributors?
All UF5A600D1-13 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 UF5A600D1-13 meets industry standards.
7.What is the process for return or replacement of UF5A600D1-13?
All UF5A600D1-13 units undergo pre-shipment inspection (PSI). If there is an issue with UF5A600D1-13, 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 UF5A600D1-13 part is unused and in its original packaging.
Return procedure for UF5A600D1-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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