STMicroelectronics DMV1500HDFD

Overview

DMV1500HDFD from STMicroelectronics is a dual high-voltage planar diode in a single insulated TO-220FPAB package, integrating a 1500 V damper diode (6 A avg, 12 A peak) and a 600 V modulation diode (3 A avg, 12 A peak) for CRT horizontal deflection stages with E/W correction. It delivers 150 ns typical reverse recovery time (damper) and 60 ns (modulation), 21 V peak forward voltage (damper), and 5 V (modulation) under fast-switching conditions at 100 °C junction temperature.

For engineers reviewing the DMV1500HDFD datasheet, DMV1500HDFD pinout, DMV1500HDFD application, or DMV1500HDFD equivalent, this dual-diode solution addresses simultaneous energy recovery and video signal modulation in legacy CRT TV deflection circuits-where low conduction loss, controlled turn-on dynamics, and reinforced insulation (2000 VRMS) are critical selection criteria.

Technical Context

The DMV1500HDFD implements two functionally distinct silicon dies in one thermally coupled, electrically isolated package: the damper diode handles high-energy flyback recovery during horizontal scan retrace, while the modulation diode controls beam intensity via fast switching at line frequency. Both use planar technology to ensure tight parameter distribution and stable thermal impedance (R_th(j-c) = 3.8 °C/W).

Its turn-on behavior is characterized by specified forward recovery times (330 ns typ. damper, 85 ns typ. modulation at 100 °C) and transient peak forward voltages (21 V and 5 V respectively), enabling precise modeling of conduction losses using manufacturer-provided equations: P_damper = 1.05 × I_F(AV) + 0.05 × I_F(RMS)² and P_mod = 0.89 × I_F(AV) + 0.055 × I_F(RMS)².

Key Specifications

Pinout & Package

DMV1500HDFD uses an insulated TO-220FPAB package with three pins per section (damper and modulation), physically separated and internally isolated. The package features epoxy meeting UL94 V0, lead-free second-level interconnect (ECOPACK®), and recommended mounting torque of 0.4–0.6 N·m.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-voltage diode applications.

Compared with STTH12-16W and VS-12EWH06F, DMV1500HDFD uniquely combines both functions with guaranteed insulation and matched thermal behavior-eliminating inter-die timing mismatch and simplifying compliance with safety isolation requirements in single-package CRT designs.

Availability

DMV1500HDFD is available at Aetrix Electronics and suitable for CRT television manufacturing, professional display refurbishment, broadcast equipment maintenance, and legacy electronics repair requiring stable component supply and traceable sourcing.

Supply support for DMV1500HDFD 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, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer applications.

DMV1500HDFD belongs to ST's high-voltage power diode product line, engineered specifically for CRT horizontal deflection systems requiring integrated damper and modulation functionality with reinforced insulation and thermal robustness.

FAQ

Is DMV1500HDFD still in active production?

No-DMV1500HDFD is marked as obsolete by STMicroelectronics per official documentation. However, Aetrix Electronics maintains legacy inventory with full traceability and provides extended lifecycle support including obsolescence forecasting, cross-reference assistance, and last-time-buy coordination for CRT service and repair programs.

Can DMV1500HDFD be used in non-CRT applications?

Its 1500 V damper rating and 600 V modulation rating are optimized for CRT horizontal deflection waveforms and E/W correction timing. While electrically capable of handling similar high-voltage, high-dI/dt transients, its thermal and recovery characteristics are not characterized for switch-mode power supplies or motor drives-application validation is required.

What is the meaning of "FD6" in the part number DMV1500HDFD?

"FD6" denotes the TO-220FPAB package variant with FD6 footprint (as defined in ST's package drawing), featuring specific leadframe geometry and PCB pad layout dimensions. It differs mechanically from the F6 variant (DMV1500HDFD6), though both share identical electrical and thermal specifications.

How does the 2000 V_RMS insulation rating impact PCB layout?

The 2000 V_RMS isolation requires ≥4.5 mm creepage/clearance between damper and modulation circuit traces on the PCB. ST's recommended FD6 layout (Figure 16) enforces physical separation of the two three-pin sections-ensuring that no shared copper pour or routing bridges the internal insulation barrier.