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Diodes Incorporated DSR15U600
- Part No.:
- DSR15U600
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
DSR15U600.pdf
- Description:
- DIODE GEN PURP 600V 15A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,792
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Product details
Overview
DSR15U600 from Diodes Incorporated is an ultra-fast recovery silicon rectifier diode in TO220AC package, rated for 600 V peak repetitive reverse voltage and 15 A average forward current, with trr ≤ 35 ns and soft recovery (S = 1.0 at 25°C), optimized as the boost diode in active PFC stages of AC-DC power supplies.
For engineers reviewing the DSR15U600 datasheet, DSR15U600 pinout, DSR15U600 application, or DSR15U600 equivalent, key selection criteria include reverse recovery time, softness factor, thermal resistance (RθJC = 2°C/W), surge capability (IFSM = 150 A), and junction capacitance (CJ = 80 pF) under high-frequency switching conditions.
Technical Context
This diode employs Diodes Incorporated's proprietary DIODESTAR™ process to achieve ultra-fast, soft-recovery switching-critical for minimizing EMI and voltage overshoot in continuous-conduction-mode (CCM) PFC boost converters. Its low Qrr (192 nC at 25°C; 450 nC at 125°C) and controlled IRM (5.0 A / 8.0 A) reduce switching losses across wide temperature ranges.
The device operates from –65°C to +175°C junction temperature, with thermal resistance RθJC = 2°C/W enabling efficient heat transfer to heatsinks in high-power industrial and server SMPS designs. Its TO220AC package supports direct mounting and meets UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Withstands peak line transients in universal-input (85–265 VAC) PFC front-ends without avalanche breakdown. |
| IO | 15 A - Sustains continuous conduction in 500–1000 W boost PFC stages with margin for thermal derating. |
| trr | ≤35 ns - Enables operation at >100 kHz switching frequencies while limiting diode turn-off loss and EMI. |
| Qrr | 192 nC (25°C), 450 nC (125°C) - Quantifies stored charge removal; lower values reduce turn-on loss in subsequent switch. |
| RθJC | 2°C/W - Allows predictable junction-to-case thermal modeling for heatsink sizing in forced-air or convection-cooled systems. |
| IFSM | 150 A (8.3 ms half-sine) - Survives inrush surges during cold-start and short-circuit events in regulated power supplies. |
| S (Softness) | 1.0 @ 25°C, 0.6 @ 125°C - Higher softness reduces di/dt-induced voltage spikes and EMI generation during recovery. |
Pinout & Package
Package: TO220AC - Molded plastic case with matte tin-plated copper leadframe, UL 94V-0 rated, designed for vertical mounting and mechanical robustness in high-vibration environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input terminal for forward conduction path | Connected to boost inductor output; carries full load current during diode conduction phase. |
| Cathode (Pin 2) | Output terminal for forward conduction path | Connected to bulk capacitor positive rail; defines DC output polarity and return path for PFC stage. |
| Cathode (Pin 3) | Redundant cathode connection | Parallel cathode terminal to reduce bond wire inductance and improve current sharing in high-di/dt operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast soft recovery | trr ≤ 35 ns with S ≥ 0.6 up to 125°C - Reduces switching noise and enables EMI-compliant layout without added snubbers. |
| High-temperature stability | Junction range –65°C to +175°C with stable VF and Qrr - Supports operation in enclosed, high-ambient industrial enclosures. |
| High surge capability | IFSM = 150 A (8.3 ms) - Withstands repeated cold-start surges in server PSUs and telecom rectifiers. |
| Low thermal resistance | RθJC = 2°C/W - Enables compact heatsink design and improves long-term reliability under sustained 15 A load. |
Applications
| Server Power Supply | Industrial AC-DC Converter |
|---|---|
Use Scenario: 80 PLUS Titanium-certified 1 kW front-end with interleaved CCM PFC. IC Role / Device Role / Timing Role: Boost rectifier diode in high-frequency PFC stage, conducting during MOSFET off-time. Use Value: Low Qrr and soft recovery minimize turn-on loss in downstream switches and meet strict conducted EMI limits. | Use Scenario: DIN-rail mounted 750 W industrial PSU operating continuously at 60°C ambient. IC Role / Device Role / Timing Role: Primary output rectifier in high-efficiency flyback-derived auxiliary supply. Use Value: Stable VF and RθJC enable reliable 15 A conduction without thermal runaway under extended load cycles. |
| Telecom Rectifier Module | EV Charger Auxiliary Power |
Use Scenario: -48 V DC distribution system with hot-swappable rectifier cards. IC Role / Device Role / Timing Role: Output freewheeling diode in synchronous rectification-assisted LLC resonant converter. Use Value: High IFSM withstands repeated plug-in surges; soft recovery prevents bus voltage ringing during card insertion. | Use Scenario: 12 V/5 A isolated auxiliary supply powering gate drivers and MCU in 22 kW on-board charger. IC Role / Device Role / Timing Role: Secondary-side rectifier in high-isolation flyback converter with reinforced insulation. Use Value: UL 94V-0 package and 175°C max TJ ensure compliance with automotive functional safety requirements (ISO 26262 ASIL-B). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1606D | trr = 35 ns (same), but RθJC = 2.5°C/W; VF = 2.2 V @ 15 A (slightly lower) | Higher thermal resistance requires larger heatsink; same PFC boost suitability | Select if lower forward drop is prioritized over thermal margin. |
| IXYS MUR1560 | trr = 50 ns (slower), Qrr = 280 nC @ 25°C; RθJC = 2.2°C/W | Higher switching loss and EMI risk in >70 kHz designs; acceptable in cost-sensitive 50–60 kHz PFC | Select only for legacy 60 Hz–60 kHz designs where EMI filtering budget allows. |
Compared with STTH1606D and IXYS MUR1560, DSR15U600 delivers superior thermal performance (RθJC = 2°C/W) and tighter softness control (S = 1.0 at 25°C), making it optimal for high-density, high-frequency PFC where thermal headroom and EMI are critical constraints.
Availability
DSR15U600 is available at Aetrix Electronics and suitable for server power supplies, industrial AC-DC converters, telecom rectifier modules, and EV charger auxiliary power requiring stable component supply despite its obsolete status through controlled legacy sourcing.
Supply support for DSR15U600 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, specializing in high-performance power management, signal integrity, and protection solutions for industrial, computing, and communications markets.
The DSR series belongs to Diodes' high-voltage ultra-fast rectifier product line, engineered specifically for efficiency-critical PFC and output rectification in high-frequency switched-mode power supplies.
FAQ
Is DSR15U600 still in production?
No-DSR15U600 is officially discontinued per Diodes Incorporated's DS35013 Rev. 6 document (October 2013). However, Aetrix Electronics maintains limited legacy inventory and offers traceable, date-code-verified stock sourced from authorized channels for ongoing production support.
What is the maximum allowable case temperature for continuous 15 A operation?
Per Figure 5 (Forward Current Derating Curve), the DSR15U600 sustains 15 A average forward current only up to TC = 85°C. Above that, current must be linearly derated to zero at TC = 175°C, with RθJC = 2°C/W defining the thermal slope.
Can DSR15U600 replace standard FR157 or UF1506 diodes?
No-DSR15U600 is not a drop-in replacement for FR157 (1 A, 1000 V) or UF1506 (15 A, 600 V, trr ≈ 75 ns). Its ultra-fast soft recovery (trr ≤ 35 ns, S ≥ 0.6) and lower Qrr demand careful PCB layout and gate drive tuning to avoid oscillation in circuits designed for slower diodes.
Does DSR15U600 require a heatsink in 15 A applications?
Yes-continuous 15 A operation generates ~36 W of conduction loss (VF ≈ 2.4 V × 15 A). With RθJC = 2°C/W and typical RθCA ≈ 10–20°C/W, a heatsink is mandatory to maintain TJ < 150°C; thermal simulation using actual airflow and mounting pressure is strongly recommended.
DSR15U600 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DIODESTAR™
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 2.2 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -65°C ~ 175°C
DSR15U600 FAQ
1.How can I place an order for DSR15U600 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSR15U600 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 DSR15U600 reliable?
The price and inventory of DSR15U600 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSR15U600 is usually 5 days.
3.What payment methods are accepted for DSR15U600?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSR15U600 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSR15U600?
DSR15U600 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSR15U600 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 DSR15U600?
For technical support, including DSR15U600 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSR15U600 requirements.
6.How does Aetrix verify that DSR15U600 is sourced from the original manufacturer or authorized distributors?
All DSR15U600 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 DSR15U600 meets industry standards.
7.What is the process for return or replacement of DSR15U600?
All DSR15U600 units undergo pre-shipment inspection (PSI). If there is an issue with DSR15U600, 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 DSR15U600 part is unused and in its original packaging.
Return procedure for DSR15U600:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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