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Diodes Incorporated DTH1506D
- Part No.:
- DTH1506D
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
DTH1506D.pdf
- Description:
- FRED GPP RECTIFIER TO220AC TUBE
- Quantity:
- Payment:
- Shipping:
Inventory:50
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Product details
Overview
DTH1506D from Diodes Incorporated is a 15A, 600V hyper-fast epitaxial rectifier diode in TO220AC package, featuring 30ns reverse recovery time, 2.9V max forward voltage at 15A/25°C, and 45μA max reverse leakage at 600V/25°C; used as freewheeling and output rectifier in high-frequency SMPS, PFC stages, and DC/DC converters.
For engineers reviewing the DTH1506D datasheet, DTH1506D pinout, DTH1506D application, or DTH1506D equivalent, key selection criteria include soft recovery behavior for EMI reduction, thermal resistance of 2°C/W (junction-to-case), and suitability for continuous conduction mode (CCM) PFC designs requiring low QRR and controlled IRR.
Technical Context
This hyper-fast rectifier employs epitaxial construction with glass passivation to achieve soft reverse recovery and minimize switching losses in hard-commutated topologies. Its 30ns tRR and 400nC QRR are measured under IF = 15A, VR = 400V, dIF/dt = 200A/µs conditions, supporting high-efficiency CCM boost PFC operation.
The device operates across –55°C to +150°C junction temperature range, with RθJC = 2°C/W enabling direct heatsink mounting via the case-connected cathode terminal. It sustains 120A non-repetitive surge current (8.3ms half-sine) and 21.7mJ avalanche energy (L = 15mH).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or freewheeling configurations. |
| IO (TC = 125°C) | 15 A - Average forward current rating at case temperature 125°C; determines heatsink sizing for continuous operation. |
| tRR | 30 ns - Measured reverse recovery time; enables >100 kHz switching in PFC and SMPS without excessive switching loss or ringing. |
| VF (15A, 25°C) | 2.9 V max - Forward voltage drop at rated current and room temperature; impacts conduction loss and thermal design. |
| IR (600V, 25°C) | 45 μA max - Reverse leakage current; critical for standby power and high-impedance bias networks. |
| QRR | 400 nC - Recovered charge during turn-off; directly affects snubber sizing and EMI generation in hard-switched converters. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance; allows direct thermal interface to heatsink without insulator penalty. |
Pinout & Package
Package: TO220AC (Type WX), single-ended anode-cathode configuration with electrically isolated tab (cathode-connected). Case serves as cathode terminal; anode is lead 1, cathode is lead 2 (tab).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Soldered to AC input or switching node; must withstand peak inverse voltage and surge current. |
| Cathode (Lead 2 / Tab) | Forward current exit & thermal path | Electrically connected to case; mounted directly to heatsink for optimal thermal transfer and low-inductance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Soft, hyper-fast switching | 30 ns tRR with controlled IRR waveform reduces EMI and voltage overshoot in hard-switched PFC and flyback converters. |
| Glass passivated die | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments. |
| TO220AC package with cathode-tab | Enables low-inductance, low-thermal-resistance mounting; eliminates separate cathode trace routing on PCB. |
| RoHS-compliant, halogen-free "Green" construction | Meets IEC 61249-2-21:2017; supports automotive and industrial compliance without material declaration overhead. |
Applications
| Server Power Supply Rectification | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: Output rectification in 1U 80+ Titanium server PSUs operating at 100–300 kHz with active clamp forward topology. IC Role / Device Role / Timing Role: Primary output rectifier handling 12V/50A+ loads; replaces Schottky in higher-voltage rails where VF trade-off is acceptable for improved thermal margin. Use Value: 2°C/W RθJC enables compact heatsinking; 30ns tRR minimizes switching loss at 200 kHz, improving full-load efficiency by ~0.4% vs. standard fast recovery diodes. | Use Scenario: Freewheeling path across IGBTs in 3-phase VFD inverters driving HVAC compressors (15–30 kW). IC Role / Device Role / Timing Role: Snubberless freewheeling diode absorbing inductive kickback during IGBT turn-off; placed adjacent to power module for minimal loop inductance. Use Value: Soft recovery suppresses voltage spikes >650V; 120A IFSM withstands motor stall surges without derating. |
| CCM Boost PFC Stage | Telecom DC/DC Converter Output |
Use Scenario: Output diode in continuous conduction mode (CCM) boost PFC front-end for 3.3 kW telecom rectifiers. IC Role / Device Role / Timing Role: High-current, high-voltage output rectifier conducting 15A average with 30A peak ripple; operates at 100 kHz with zero-voltage switching assist. Use Value: 400nC QRR reduces snubber capacitor stress; 2.9V VF at 15A balances conduction loss against thermal design constraints in sealed chassis. | Use Scenario: Secondary-side synchronous rectifier replacement in isolated 48V-to-12V telecom DC/DC modules with >95% efficiency target. IC Role / Device Role / Timing Role: Non-synchronous rectifier in forward converter secondary, selected for robustness over MOSFET gate drive complexity. Use Value: 600V VRRM provides margin against reflected transients; 45μA IR ensures <10 mW standby loss in always-on network equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hyper-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1506D | Same 600V/15A rating; tRR = 35ns (vs. 30ns); VF = 2.7V typ at 15A/25°C; RθJC = 2.5°C/W | Higher thermal resistance requires larger heatsink; slightly slower recovery increases EMI filtering burden | Prefer when legacy ST design reuse is required and 5ns tRR margin is acceptable |
| IXYS MUR1560 | 600V/15A; tRR = 35ns; VF = 2.8V max; RθJC = 2.2°C/W; no halogen-free certification | Lacks "Green" compliance; not qualified for RoHS 3 or automotive change control | Select only for cost-sensitive industrial applications where halogen-free is not mandated |
Compared with STTH1506D and MUR1560, DTH1506D delivers the fastest recovery (30ns), lowest thermal resistance (2°C/W), and full halogen/antimony-free compliance-making it optimal for space-constrained, high-efficiency, and regulated-market PFC and SMPS designs.
Availability
DTH1506D is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, telecom DC/DC converters, and CCM boost PFC stages requiring stable component supply and long-lifecycle support.
Supply support for DTH1506D 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 automotive markets.
The DTH series targets high-frequency power conversion applications demanding soft recovery, low QRR, and robust thermal performance-specifically engineered for CCM PFC, high-density SMPS, and motor drive freewheeling where reliability and EMI control are critical.
FAQ
Is DTH1506D suitable for automotive applications?
No-DTH1506D is not AEC-Q101 qualified. While Diodes offers automotive-grade variants in the same family (e.g., DTH1506DQ), this specific part is intended for industrial and computing applications. Automotive use requires explicit qualification documentation, PPAP submission, and IATF 16949 manufacturing evidence not present for this variant.
What is the maximum allowable case temperature for continuous operation?
The absolute maximum case temperature is +125°C, as specified in the IO rating condition. Sustained operation above this temperature risks exceeding the 150°C maximum junction temperature, especially given the 2°C/W RθJC. Derating is required above +125°C case; thermal design must ensure TJ ≤ 150°C under worst-case load and ambient conditions.
Does the TO220AC package require electrical isolation when mounted to a heatsink?
No-the TO220AC (Type WX) variant has an electrically isolated tab. The cathode is connected to lead 2 and the metal tab, but the tab itself is insulated from the internal die mount. Standard mounting hardware (e.g., shoulder washer + screw) is sufficient; no additional insulating pad is needed unless system-level isolation requirements dictate otherwise.
How does DTH1506D's soft recovery reduce EMI compared to standard fast recovery diodes?
Its soft recovery limits di/dt during turn-off, suppressing high-frequency ringing caused by parasitic LC networks in power loops. With 30ns tRR and controlled IRR waveform (8A peak at 125°C), it avoids abrupt current collapse that excites >10 MHz resonances-reducing conducted EMI by up to 8 dB in 30–100 MHz band versus standard FRDs in identical PFC layouts.
DTH1506D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 2.9 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 45 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO220AC (Type WX)
- Operating Temperature - Junction:
- -55°C ~ 150°C
DTH1506D FAQ
1.How can I place an order for DTH1506D through Aetrix?
Please submit a Request for Quotation (RFQ) for DTH1506D 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 DTH1506D reliable?
The price and inventory of DTH1506D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DTH1506D is usually 5 days.
3.What payment methods are accepted for DTH1506D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DTH1506D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DTH1506D?
DTH1506D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DTH1506D 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 DTH1506D?
For technical support, including DTH1506D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DTH1506D requirements.
6.How does Aetrix verify that DTH1506D is sourced from the original manufacturer or authorized distributors?
All DTH1506D 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 DTH1506D meets industry standards.
7.What is the process for return or replacement of DTH1506D?
All DTH1506D units undergo pre-shipment inspection (PSI). If there is an issue with DTH1506D, 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 DTH1506D part is unused and in its original packaging.
Return procedure for DTH1506D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Diodes Incorporated
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