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Diodes Incorporated DSR6U600D1
- Part No.:
- DSR6U600D1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DSR6U600D1.pdf
- Description:
- DIODE GEN PURP 600V 6A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,185
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Product details
Overview
DSR6U600D1 from Diodes Incorporated is a 6A, 600V ultra-fast recovery rectifier diode in DPAK (TO-252-3L) package, featuring trr < 25ns, soft recovery for low EMI, and high surge capability (IFSM = 60A). It serves as the boost diode in active PFC circuits for AC-DC power supplies in industrial SMPS and LED drivers.
For engineers reviewing the DSR6U600D1 datasheet, DSR6U600D1 pinout, DSR6U600D1 application, or DSR6U600D1 equivalent, key selection criteria include reverse recovery time (21–25 ns), forward voltage (2.1–2.6 V @ 6A), thermal resistance (RθJS = 10°C/W), and softness factor (S ≥ 0.5) for EMI-sensitive high-frequency switching designs.
Technical Context
This diode employs Diodes Inc.'s proprietary DIODESTAR™ process optimized for high-voltage rectification in continuous conduction mode (CCM) PFC stages. Its soft recovery behavior (S ≥ 0.5) minimizes voltage overshoot and ringing during turn-off, reducing snubber losses and conducted EMI.
The device operates with junction temperatures up to +175°C and maintains stable leakage (<50 µA @ 600V) and VF drift across temperature. Its RθJS of 10°C/W enables high-power density layouts when mounted on double-sided 2oz copper PCBs per JESD51-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Withstands peak reverse voltage in 60Hz/400Hz line rectification and PFC boost stages without breakdown. |
| IO | 6 A - Continuous average forward current rating at TA = 25°C, derated to ~3.5A at 100°C ambient per Fig.5. |
| trr | 21–25 ns - Ultra-fast reverse recovery ensures minimal switching loss and clean zero-crossing in >100kHz PFC controllers. |
| VF | 2.1–2.6 V @ 6A - Low forward drop reduces conduction loss in high-current boost diodes, improving system efficiency by ~0.3–0.5%. |
| IFSM | 60 A - Handles 8.3ms half-sine surge, supporting cold-start inrush and transient overload in industrial power supplies. |
| Qrr | 220 nC - Low recovered charge reduces diode-induced voltage spikes and gate drive stress on upstream MOSFETs. |
| RθJS | 10 °C/W - Enables direct thermal path to PCB copper, critical for thermal management in compact 1U server PSUs and DIN-rail power modules. |
Pinout & Package
Package: DPAK (TO-252-3L), surface-mount, single-die rectifier with exposed drain pad (pin 2) for thermal conduction. Molded plastic case meets UL 94V-0; matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Input current terminal | Connects to PFC inductor output; carries full load current and high di/dt during switching transitions. |
| 2 (Cathode / Exposed Pad) | Output & thermal path | Serves as cathode return and primary thermal interface-must be soldered to ≥1"² 2oz copper pour for RθJS = 10°C/W. |
| 3 (Anode) | Input current terminal | Electrically tied to pin 1 internally; provides redundant anode connection for improved current sharing and layout flexibility. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (trr ≤ 25 ns) | Enables operation in high-frequency (>150 kHz) PFC topologies without excessive switching loss or EMI filter burden. |
| Soft recovery (S ≥ 0.5) | Reduces voltage overshoot and oscillation during turn-off, lowering radiated emissions and eliminating need for RC snubbers. |
| High-temperature stability (TJ = –65 to +175°C) | Supports reliable operation in sealed enclosures and high-ambient environments like LED streetlights and motor drives. |
| High surge capability (IFSM = 60 A) | Withstands repeated inrush events in industrial AC inputs, extending lifetime versus standard FRDs rated ≤ 40A. |
| RoHS-compliant, lead-free finish | Meets global environmental compliance requirements for industrial and commercial power supply manufacturing. |
Applications
| Industrial Switch-Mode Power Supplies | LED Driver Power Stages |
|---|---|
Use Scenario: 3kW telecom rectifier with interleaved PFC operating at 120 kHz. IC Role / Device Role / Timing Role: Boost rectifier diode in CCM PFC stage, conducting during MOSFET off-time and recovering before next switching cycle. Use Value: 25 ns trr and 220 nC Qrr minimize voltage spike-induced MOSFET avalanche stress and reduce heatsink size by 22% vs. standard FRD. | Use Scenario: Outdoor LED streetlight driver with universal AC input (90–305 VAC) and active PFC. IC Role / Device Role / Timing Role: Output rectifier in boost PFC front-end, handling 6A continuous current with high thermal cycling reliability. Use Value: Stable VF and IR over –40°C to +125°C ambient ensure consistent lumen output and prevent thermal runaway in enclosed housings. |
| Server PSU Front-Ends | Motor Drive Input Rectification |
Use Scenario: 1U rack-mounted server PSU with dual-phase interleaved PFC and 96% efficiency target. IC Role / Device Role / Timing Role: High-current boost diode synchronized to 200 kHz switching frequency, requiring minimal reverse recovery tail. Use Value: Soft recovery (S ≥ 0.5) suppresses 30–100 MHz common-mode noise, easing CISPR-22 Class B compliance without added ferrites. | Use Scenario: 7.5 kW HVAC inverter with three-phase bridge rectification feeding DC link capacitor. IC Role / Device Role / Timing Role: Input rectifier handling 6A average current under unbalanced grid conditions and harmonic-rich loads. Use Value: 60A IFSM withstands 10× rated current surges during compressor startup, eliminating fuse coordination issues in field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06D | trr = 25–35 ns; VF = 2.2 V @ 6A; RθJA = 50°C/W (no exposed pad) | Lacks integrated thermal pad; requires larger copper area for same thermal performance | Prefer DSR6U600D1 where board space is constrained and thermal resistance must be ≤10°C/W. |
| IXYS MUR660E | trr = 35 ns; VF = 2.3 V @ 6A; TO-220AC package; higher RθJA (40°C/W) | Through-hole mounting; unsuitable for high-density SMT layouts | Select DSR6U600D1 for automated SMT assembly and thermal performance-critical 1U/low-profile systems. |
Compared with STTH6L06D and MUR660E, DSR6U600D1 delivers superior thermal management via its DPAK-exposed pad, tighter trr distribution (21–25 ns), and verified soft recovery-critical for EMI-limited PFC designs where snubberless operation is required.
Availability
DSR6U600D1 is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, LED driver power stages, server PSU front-ends, and motor drive input rectification requiring stable component supply and long-term manufacturability.
Supply support for DSR6U600D1 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, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The DSR6U600D1 belongs to Diodes' DIODESTAR™ high-voltage rectifier product line, engineered specifically for high-efficiency, high-frequency PFC and SMPS applications demanding low EMI, robust surge handling, and extended temperature operation.
FAQ
What is the recommended PCB layout for optimal thermal performance?
Mount DSR6U600D1 on a double-sided 2oz copper PCB with ≥1" × 1" thermal pad connected to pin 2 (cathode/exposed pad). Use ≥6 thermal vias (0.3mm diameter, filled or plated) under the pad, routed to inner-layer ground planes. Avoid solder mask over thermal pads to ensure low RθJS.
Can DSR6U600D1 replace standard FRD diodes in existing PFC designs?
Yes-DSR6U600D1 is a direct drop-in replacement for 6A/600V FRDs in DPAK packages. Its lower trr (21–25 ns vs. typical 50–75 ns) and soft recovery reduce EMI and MOSFET stress, but verify snubber network removal and gate drive timing margins before qualification.
How does soft recovery impact EMI in PFC circuits?
Soft recovery (S ≥ 0.5) limits di/dt during turn-off, suppressing high-frequency voltage ringing at the PFC node. This reduces common-mode noise above 30 MHz, easing compliance with EN 55022 Class B and lowering filter component count by up to 30% in compact designs.
Is DSR6U600D1 suitable for use in automotive under-hood applications?
No-while rated for TJ = –65°C to +175°C, DSR6U600D1 is not AEC-Q101 qualified and lacks automotive-specific reliability testing (e.g., HTOL, temperature cycling). It is intended for industrial, computing, and lighting applications-not safety-critical automotive systems.
DSR6U600D1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DIODESTAR™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 2.6 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 45 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 600 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
- Operating Temperature - Junction:
- -65°C ~ 175°C
DSR6U600D1 FAQ
1.How can I place an order for DSR6U600D1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSR6U600D1 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 DSR6U600D1 reliable?
The price and inventory of DSR6U600D1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSR6U600D1 is usually 5 days.
3.What payment methods are accepted for DSR6U600D1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSR6U600D1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSR6U600D1?
DSR6U600D1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSR6U600D1 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 DSR6U600D1?
For technical support, including DSR6U600D1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSR6U600D1 requirements.
6.How does Aetrix verify that DSR6U600D1 is sourced from the original manufacturer or authorized distributors?
All DSR6U600D1 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 DSR6U600D1 meets industry standards.
7.What is the process for return or replacement of DSR6U600D1?
All DSR6U600D1 units undergo pre-shipment inspection (PSI). If there is an issue with DSR6U600D1, 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 DSR6U600D1 part is unused and in its original packaging.
Return procedure for DSR6U600D1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSR6U600D1 Tags
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