STMicroelectronics DMV1500SDFD6

Overview

DMV1500SDFD6 from STMicroelectronics is a dual-function high-voltage discrete diode module integrating a 1500 V damper diode and a 600 V modulation diode in a single insulated TO-220FPAB FD6 package. It delivers 6 A average forward current per diode, 150 ns typical reverse recovery time (damper), and 60 ns (modulation), enabling precise horizontal deflection control with E/W correction in CRT television systems.

For engineers reviewing the DMV1500SDFD6 datasheet, DMV1500SDFD6 pinout, DMV1500SDFD6 application, or DMV1500SDFD6 equivalent, key selection criteria include verified dual-diode integration, insulated 2000 VRMS isolation, low VFP (26 V damper / 5 V modulation), and validated turn-on switching performance under 80 A/µs dIF/dt at 100 °C junction temperature.

Technical Context

This device implements two functionally distinct silicon diodes on a shared planar die within an electrically insulated TO-220FPAB FD6 housing: one optimized for high-energy damper operation (1500 V VRRM, 12 A IFpeak) and the other for fast-switching modulation (600 V VRRM, 60 ns trr). Both share identical thermal resistance (Rth(j-c) = 4.0 °C/W) and operate up to 150 °C junction temperature.

The damper diode exhibits specified forward recovery time (350 ns typ.) and peak forward voltage (26 V typ. at 6 A, 100 °C), while the modulation diode provides lower VFP (5 V typ.) and faster trr (60 ns typ.), supporting synchronized flyback and scanning waveform fidelity in analog video deflection stages.

Key Specifications

Pinout & Package

Package: TO-220FPAB FD6 - Insulated plastic power package with integrated heatsink tab, UL94 V0 epoxy, and 0.4–0.6 N·m mounting torque specification. Dimensions conform to Table 8 (Rev. 4, Dec 2008): L3 = 4.8 mm typ., L4 = 3.4–4.8 mm, G = 4.8–5.3 mm, and 2.9–3.5 mm mounting hole diameter.

Key Features

Applications

Availability

DMV1500SDFD6 is available at Aetrix Electronics and suitable for CRT television manufacturing, analog display repair services, and legacy broadcast equipment maintenance requiring stable component supply and long-term obsolescence mitigation support.

Supply support for DMV1500SDFD6 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 and discrete devices for industrial, automotive, and consumer applications.

DMV1500SDFD6 belongs to ST's high-voltage power discrete portfolio, specifically engineered for analog video deflection systems where dual-diode integration, insulation integrity, and repeatable switching dynamics are critical to image geometry stability.

FAQ

Is DMV1500SDFD6 pin-compatible with non-FD6 variants like DMV1500SDFD?

Yes - DMV1500SDFD6 uses the TO-220FPAB FD6 mechanical variant, which differs from standard FD only in PCB footprint dimensions (L3 = 4.8 mm typ. vs. 28.6 mm for FD), but retains identical pin numbering, terminal functions, and electrical specifications. Mounting hole position and tab geometry are optimized for compact CRT chassis layouts.

What is the significance of the 2000 VRMS insulation rating?

The 2000 VRMS isolation between the internal dies and the heatsink tab eliminates electrical coupling to the chassis ground, preventing ground-loop noise in sensitive analog video circuits. This allows direct metal-to-metal heatsink mounting without insulating hardware, reducing thermal resistance and assembly cost in mass-produced CRT TVs.

How does the dual-die structure affect thermal performance?

Both diodes share the same Rth(j-c) = 4.0 °C/W value and are mounted on a common insulated substrate. Under simultaneous conduction, total power dissipation is additive, but thermal coupling ensures uniform junction temperature distribution - critical for maintaining consistent trr and VFP across operational lifetime in high-temperature CRT environments.

Can DMV1500SDFD6 be used in non-CRT applications?

No - its electrical parameters (e.g., 56 kHz switching optimization, E/W correction timing alignment, and 1500 V/600 V dual VRRM) are specifically characterized and qualified for CRT horizontal deflection stages. Use in switch-mode power supplies or motor drives is not supported by ST's datasheet test conditions or reliability data.