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Diodes Incorporated DTH1206D
- Part No.:
- DTH1206D
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
DTH1206D.pdf
- Description:
- DIODE GEN PURP 600V 12A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:40
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Product details
Overview
DTH1206D from Diodes Incorporated is a 600V, 12A hyper-fast epitaxial rectifier diode in TO220AC package, optimized for snubber circuits, bootstrap diodes in high-frequency motor drives, and demagnetization in flyback and resonant converters. It delivers 2.4V typical forward voltage at 12A, 30ns reverse recovery time, and 45µA leakage at 600V/25°C.
For engineers reviewing the DTH1206D datasheet, DTH1206D pinout, DTH1206D application, or DTH1206D equivalent, key selection criteria include soft switching behavior, continuous conduction mode (CCM) PFC suitability, thermal resistance (RθJC = 4°C/W), and RoHS-compliant matte tin-plated leads.
Technical Context
This device employs an epitaxial planar structure with glass passivation to achieve hyper-fast soft recovery-critical for minimizing EMI and voltage overshoot in hard-switched topologies. Its 30ns tRR and low stored charge support operation up to 100kHz in CCM boost PFC stages.
The TO220AC (Type WX) package provides direct case-to-heatsink thermal path (RθJC = 4°C/W) and supports 120A non-repetitive surge current (8.3ms half-sine), enabling robust performance in industrial motor control inverters and industrial SMPS front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Blocks DC bus voltages up to 400V DC-link with 50% safety margin in 3-phase rectified systems. |
| IO | 12 A - Continuous average forward current rating at TC = 100°C, suitable for 500W–1kW power stages. |
| VF @ 12A | 2.4 V (typ) - Low conduction loss enables <1.5W dissipation at full load, reducing heatsink requirements. |
| tRR | 30 ns - Enables clean turn-off in 65–100kHz hard-switched converters without snubber overdesign. |
| IR @ 600V | 45 µA @ 25°C - Low leakage preserves efficiency in high-impedance gate-drive bootstrap networks. |
| RθJC | 4 °C/W - Allows direct mounting to heatsink for thermal management in space-constrained industrial enclosures. |
| IFSM | 120 A - Withstands inrush and fault currents in motor drive DC-link protection applications. |
Pinout & Package
Package: TO220AC (Type WX), single-diode configuration with isolated tab (cathode-connected case). Molded green plastic housing (UL 94V-0), matte tin-plated leads, 1.894g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry | Connected to AC input or switching node; requires PCB copper pour for thermal relief. |
| Cathode (Lead 2) | Forward current exit / case connection | Electrically tied to metal tab; must be electrically isolated from heatsink unless system ground referenced. |
| Tab (Case) | Cathode terminal / thermal interface | Provides primary heat conduction path; isolation voltage rating depends on mounting hardware. |
Key Features
| Feature | Design Value |
|---|---|
| Soft hyper-fast switching | Controlled minority-carrier lifetime yields low EMI and minimal voltage ringing during turn-off. |
| Glass passivated die | Enhances long-term reliability under humidity and thermal cycling stress in industrial environments. |
| CCM PFC optimization | Low Qrr and soft recovery reduce losses and improve efficiency in continuous conduction mode boost stages. |
| RoHS & "Green" compliant | Halogen-free (<900ppm Br/Cl, <1000ppm Sb) and lead-free per EU directives, supporting eco-design compliance. |
Applications
| Industrial SMPS Front-End | Motor Drive Bootstrap Diode |
|---|---|
Use Scenario: High-efficiency 600W industrial switch-mode power supply with active PFC stage. IC Role / Device Role / Timing Role: Output rectifier in boost PFC output stage operating in continuous conduction mode. Use Value: 30ns tRR and soft recovery minimize switching losses and EMI filter size vs. standard fast recovery diodes. | Use Scenario: High-side gate driver bootstrap circuit in 3-phase IGBT inverter for HVAC compressors. IC Role / Device Role / Timing Role: Bootstrap charging diode ensuring reliable high-side FET turn-on during PWM dead-time intervals. Use Value: 45µA max leakage at 600V prevents bootstrap capacitor discharge drift, maintaining gate drive stability over temperature. |
| Flyback Converter Demagnetization | Snubber Network Diode |
Use Scenario: 200W offline flyback converter for industrial PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side rectifier with demagnetization path during transformer reset phase. Use Value: 2.4V typical VF reduces conduction loss while 12A rating handles peak secondary current surges. | Use Scenario: RCD snubber across MOSFETs in resonant LLC half-bridge power supplies. IC Role / Device Role / Timing Role: Snubber diode clamping voltage spikes during MOSFET turn-off transitions. Use Value: Hyper-fast 30ns recovery ensures precise clamping timing, preventing energy loss in snubber resistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hyper-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1206D | Same 600V/12A rating; tRR = 35ns (typ), VF = 2.5V (typ); TO220AC package. | Slightly slower recovery increases snubber losses in >80kHz designs; otherwise interchangeable in PFC and motor drive roles. | Prefer DTH1206D where <30ns tRR is required for EMI-sensitive layouts. |
| IXYS MUR1260CT | 600V/12A dual common-cathode; tRR = 35ns, VF = 2.7V; TO220AB package with isolated tab. | Dual configuration unnecessary for single-diode use cases; higher VF increases conduction loss by ~0.3W at 12A. | Select only if dual-diode topology or alternate footprint compatibility is needed. |
Compared with STTH1206D and MUR1260CT, DTH1206D offers the lowest tRR (30ns) and best VF (2.4V typ), delivering superior efficiency in high-frequency CCM PFC and compact snubber designs where thermal and EMI margins are tight.
Availability
DTH1206D is available at Aetrix Electronics and suitable for industrial power supplies, motor controls, and snubber/demagnetization circuits requiring stable component supply and long-term industrial lifecycle support.
Supply support for DTH1206D 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 DTH series targets high-reliability industrial rectification, emphasizing hyper-fast soft recovery, thermal robustness, and green compliance for mission-critical power conversion systems.
FAQ
Is DTH1206D suitable for automotive applications?
No-DTH1206D is not AEC-Q101 qualified. While it meets industrial temperature range (−55°C to +150°C) and RoHS/Green standards, Diodes explicitly states automotive-grade variants require separate qualification, PPAP capability, and IATF 16949 manufacturing. Use only in non-safety-critical industrial systems.
What is the maximum junction temperature and how is it limited?
The absolute maximum junction temperature is +150°C. Operation at this limit requires maintaining case temperature ≤100°C (per derating curve), achievable via heatsinking that respects RθJC = 4°C/W. At TC = 100°C, IO is rated 12A; exceeding TC reduces allowable current linearly per Figure 1.
Can DTH1206D replace standard FRD or UF diodes in existing designs?
Yes-if the original design uses TO220AC-packaged 600V/12A fast or ultrafast rectifiers. DTH1206D's lower tRR (30ns vs. 50–75ns) and softer recovery reduce EMI and voltage overshoot, but layout parasitics must be verified. No changes to footprint or biasing are needed.
How does the glass passivation affect long-term reliability?
Glass passivation protects the silicon junction from moisture ingress, ion contamination, and mechanical stress during thermal cycling. Diodes specifies this construction for >10-year field life in industrial environments with 85°C/85% RH exposure, validated per JESD22-A101 and A110 test standards.
DTH1206D 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):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 2.9 V @ 12 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
DTH1206D FAQ
1.How can I place an order for DTH1206D through Aetrix?
Please submit a Request for Quotation (RFQ) for DTH1206D 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 DTH1206D reliable?
The price and inventory of DTH1206D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DTH1206D is usually 5 days.
3.What payment methods are accepted for DTH1206D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DTH1206D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DTH1206D?
DTH1206D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DTH1206D 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 DTH1206D?
For technical support, including DTH1206D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DTH1206D requirements.
6.How does Aetrix verify that DTH1206D is sourced from the original manufacturer or authorized distributors?
All DTH1206D 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 DTH1206D meets industry standards.
7.What is the process for return or replacement of DTH1206D?
All DTH1206D units undergo pre-shipment inspection (PSI). If there is an issue with DTH1206D, 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 DTH1206D part is unused and in its original packaging.
Return procedure for DTH1206D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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