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STMicroelectronics DTV1500SDFP
- Part No.:
- DTV1500SDFP
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
DTV1500SDFP.pdf
- Description:
- DIODE GP 1.5KV 6A TO220FPAC
- Quantity:
- Payment:
- Shipping:
Inventory:7,032
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Product details
Overview
DTV1500SDFP from STMicroelectronics is a high-voltage damper diode designed specifically for horizontal deflection stages in CRT television displays. It delivers 1500 V repetitive peak reverse voltage, 6 A average forward current, 12 A peak forward current at 56 kHz, 150 ns typical reverse recovery time, and 26 V typical peak forward voltage at 100°C under fast switching conditions.
For engineers reviewing the DTV1500SDFP datasheet, DTV1500SDFP pinout, DTV1500SDFP application, or DTV1500SDFP equivalent, this device is selected for high-reliability CRT horizontal output circuits requiring low conduction loss, controlled turn-on behavior, and insulated packaging with 2000 V DC isolation.
Technical Context
This diode employs planar junction technology to achieve stable high-voltage blocking and fast, controlled recovery characteristics essential for resonant flyback operation in CRT deflection yoke circuits. Its specified tfr (500 ns max) and dIF/dt-rated VFP (26 V typ at 80 A/µs) directly support safe commutation of high-current horizontal scan pulses.
The TO-220FPAC package provides electrical insulation (2000 V DC) and low thermal resistance (Rth(j-c) = 5.8 °C/W), enabling direct mounting to heatsinks without additional isolation hardware while maintaining safe creepage/clearance in high-voltage deflection stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1500 V - Withstands repetitive reverse voltage in CRT horizontal output transformer secondary circuits. |
| IF(AV) | 6 A - Sustains average forward current during 15.625 kHz horizontal scanning without thermal runaway. |
| trr (typ) | 150 ns - Enables clean turn-off before next scan line, minimizing switching loss and voltage overshoot. |
| VFP (typ) | 26 V at 100°C - Limits transient forward voltage spike during rapid dIF/dt (80 A/µs), protecting driver transistors. |
| Rth(j-c) | 5.8 °C/W - Allows efficient heat transfer to heatsink, supporting continuous operation at Tj = 175°C. |
| Cj | 12 pF - Low junction capacitance reduces capacitive loading on deflection oscillator and driver stage. |
| Isolation Voltage | 2000 V DC - Insulated TO-220FPAC package eliminates need for separate insulating washers in HV chassis designs. |
Pinout & Package
DTV1500SDFP uses the TO-220FPAC package: an insulated variant of TO-220 with electrically isolated metal tab (2000 V DC rating), 1.8 g mass, and standardized mechanical dimensions per STMicroelectronics drawing (L3 = 28.6–30.6 mm, H = 10–10.4 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input to damper path | Connects to horizontal output transistor collector and deflection yoke primary; carries high di/dt flyback current. |
| Cathode | Output to B+ rail | Clamps flyback energy to regulated B+ supply; must handle 12 A peak and sustain 1500 V reverse bias. |
| Tab (isolated) | Thermal interface only | Electrically floating metal surface for heatsink attachment; no circuit connection required or permitted. |
Key Features
| Feature | Design Value |
|---|---|
| High VRRM with planar junction | 1500 V blocking capability maintained across full temperature range (−65°C to +175°C) without degradation. |
| Controlled tfr and trr | 500 ns max forward recovery and 250 ns max reverse recovery ensure predictable timing in resonant deflection cycles. |
| Low VFP under high dIF/dt | 36 V max peak forward voltage at 80 A/µs prevents destructive voltage spikes on driver transistors. |
| Insulated TO-220FPAC | Eliminates need for mica washers or silicone pads-reduces assembly steps and long-term insulation failure risk. |
Applications
| Standard CRT TV Deflection | High-Resolution CRT Monitor |
|---|---|
Use Scenario: Horizontal scan output stage in 15.625 kHz interlaced TV systems using flyback transformer and yoke. IC Role / Device Role / Timing Role: Damper diode clamping flyback energy and shaping retrace waveform. Use Value: 150 ns trr and 26 V VFP minimize driver stress and EMI generation during line retrace. | Use Scenario: High-frequency horizontal deflection (31.5 kHz+) in VGA/SVGA monitors with tighter timing margins. IC Role / Device Role / Timing Role: Fast-recovery damper ensuring stable retrace timing and reduced yoke ringing. Use Value: 5.8 °C/W Rth(j-c) and 175°C Tj rating support sustained high-power operation without derating. |
| Industrial CRT Display Systems | Military/Aerospace CRT Terminals |
Use Scenario: Ruggedized medical or industrial display units operating in extended ambient temperature ranges. IC Role / Device Role / Timing Role: High-reliability damper sustaining 12 A IFpeak and 50 A IFSM surge events. Use Value: −65°C to +175°C Tstg/Tj range enables operation in uncontrolled environmental enclosures. | Use Scenario: Avionics or naval command consoles where vibration, shock, and long service life are critical. IC Role / Device Role / Timing Role: Isolated-package damper eliminating ground-loop risks in multi-chassis systems. Use Value: 2000 V DC insulation withstand ensures safety and signal integrity in distributed HV power architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage damper diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1206D | 600 V VRRM, 12 A IF(AV), TO-220AC (non-isolated) | Lower voltage rating; requires external insulation for 1500 V circuits | Select only if system B+ < 600 V and chassis grounding allows non-isolated mounting. |
| BYV96E | 1200 V VRRM, 6 A IF(AV), TO-220AC, 200 ns trr | Lower VRRM margin and no insulated package; higher VFP (32 V typ) | Acceptable only in legacy 1200 V designs with proven thermal margin and added isolation hardware. |
Compared with DTV1500SDFP, STTH1206D lacks voltage headroom and isolation, while BYV96E trades 300 V VRRM margin and higher switching stress for broader distributor availability-neither matches the integrated 1500 V/2000 V isolation/low-VFP combination required for modern CRT deflection compliance.
Availability
DTV1500SDFP is available at Aetrix Electronics and suitable for CRT television manufacturing, high-resolution monitor production, and industrial display repair requiring stable component supply and long-lifecycle support.
Supply support for DTV1500SDFP 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in power discrete devices, microcontrollers, and analog ICs for industrial, automotive, and consumer applications.
DTV1500SDFP belongs to ST's high-voltage power diode product line, engineered specifically for CRT horizontal deflection and flyback energy recovery in legacy display systems demanding reliability under extreme dIF/dt and thermal stress.
FAQ
Is DTV1500SDFP still in active production?
No-DTV1500SDFP is marked as obsolete by STMicroelectronics per its revision history and official product status. However, Aetrix Electronics maintains legacy inventory and offers traceable, tested stock for ongoing repair and maintenance programs in CRT-based equipment.
Can DTV1500SDFP be used in switch-mode power supplies (SMPS)?
It is not recommended for general SMPS use. Its optimized trr, tfr, and VFP parameters target CRT horizontal deflection waveforms-not continuous PWM operation. In SMPS, uncontrolled recovery tail current may cause excessive loss and EMI outside its validated operating envelope.
What is the maximum dIF/dt this diode supports reliably?
DTV1500SDFP is characterized up to 80 A/µs (per Table 7), with VFP and trr data provided at that rate. Operation beyond 80 A/µs risks exceeding VFP max (36 V) and inducing destructive voltage overshoot-designs must limit dIF/dt via snubber networks or driver slew control.
Does the TO-220FPAC package require thermal compound when mounted?
Yes-despite its insulated tab, thermal interface material (e.g., silicone grease or phase-change pad) is required between the metal tab and heatsink to minimize junction-to-ambient thermal resistance. The 5.8 °C/W Rth(j-c) rating assumes optimal thermal contact, not dry mounting.
DTV1500SDFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1500 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.75 V @ 6 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1 µs
- Current - Reverse Leakage @ Vr:
- 100 µA @ 1500 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220FPAC
- Operating Temperature - Junction:
- 175°C (Max)
DTV1500SDFP FAQ
1.How can I place an order for DTV1500SDFP through Aetrix?
Please submit a Request for Quotation (RFQ) for DTV1500SDFP 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 DTV1500SDFP reliable?
The price and inventory of DTV1500SDFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DTV1500SDFP is usually 5 days.
3.What payment methods are accepted for DTV1500SDFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DTV1500SDFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DTV1500SDFP?
DTV1500SDFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DTV1500SDFP 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 DTV1500SDFP?
For technical support, including DTV1500SDFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DTV1500SDFP requirements.
6.How does Aetrix verify that DTV1500SDFP is sourced from the original manufacturer or authorized distributors?
All DTV1500SDFP 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 DTV1500SDFP meets industry standards.
7.What is the process for return or replacement of DTV1500SDFP?
All DTV1500SDFP units undergo pre-shipment inspection (PSI). If there is an issue with DTV1500SDFP, 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 DTV1500SDFP part is unused and in its original packaging.
Return procedure for DTV1500SDFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DTV1500SDFP Tags
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