STMicroelectronics DMV1500MFD5

Overview

DMV1500MFD5 from STMicroelectronics is a dual-function insulated high-voltage damper and modulation diode in a single TO-220FPAB-F5 package, designed for horizontal deflection stages in CRT video displays with E/W correction. It integrates a 1500 V damper diode (IF(AV) = 6 A, VF(max) = 1.65 V at 6 A, trr(max) = 135 ns) and a 600 V modulation diode (IF(AV) = 3 A, VF(max) = 1.4 V at 3 A, trr(max) = 50 ns), enabling compact, thermally stable EHT circuitry.

For engineers reviewing the DMV1500MFD5 datasheet, DMV1500MFD5 pinout, DMV1500MFD5 application in CRT deflection circuits, or DMV1500MFD5 equivalent for damper-modulation integration, this page delivers verified electrical parameters, thermal performance data, insulation specs (2000 VRMS, 7 pF), and real-world switching behavior under dIF/dt stress up to 80 A/µs.

Technical Context

The DMV1500MFD5 implements two planar-junction diodes on one die: a high-breakdown 1500 V damper optimized for energy recovery during flyback, and a faster 600 V modulation diode with lower stored charge (Qrr typ. < 500 nC) for precise beam current control. Both share a common cathode configuration and are electrically isolated from the heatsink via 2000 VRMS-rated package insulation.

Its turn-on behavior is characterized by controlled forward recovery (tfr = 570 ns damper / 240 ns modulation at 100°C) and low transient overvoltage (VFP = 28 V damper / 8 V modulation at 100°C), critical for minimizing snubber losses and preventing secondary breakdown in high-dI/dt CRT horizontal output stages.

Key Specifications

Pinout & Package

TO-220FPAB-F5: Insulated plastic package with bent leads (F5 option), 3-terminal configuration (Anode1–Damper, Anode2–Modulation, Cathode–Common), 2.4 g mass, 2000 VRMS isolation between tab and terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar damper-modulation diode applications.

Compared with STTH12R06DJF and STTH8R06DJF, DMV1500MFD5 uniquely delivers co-located, thermally coupled damper and modulation functions with certified insulation-reducing BOM count by 2, eliminating inter-diode timing mismatch, and enabling single-point thermal monitoring in CRT deflection systems.

Availability

DMV1500MFD5 is available at Aetrix Electronics and suitable for CRT video display manufacturing, broadcast equipment repair, and legacy analog test instrument production requiring stable component supply and long-lifecycle support.

Supply support for DMV1500MFD5 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

DMV1500MFD5 belongs to ST's High-Voltage Diode product line, engineered specifically for CRT horizontal deflection systems requiring simultaneous high-voltage clamping and precision beam modulation in a thermally robust, safety-isolated package.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The DMV1500MFD5 has a maximum operating junction temperature of 150°C, validated across all electrical parameters in the datasheet. At this temperature, forward voltage drop remains within spec (VF ≤ 1.65 V damper, ≤1.4 V modulation), and reverse recovery time stays ≤135 ns (damper) and ≤50 ns (modulation), ensuring reliable operation in sealed CRT chassis with limited airflow.

Can the common cathode be used as a ground reference for both damper and modulation circuits?

Yes - Pin 2 is the shared cathode terminal, explicitly designed as the unified return path for both diodes. Its low-inductance connection and planar layout ensure <0.3 nH parasitic inductance, preventing ground bounce between flyback recovery and modulation switching events, which is essential for maintaining EHT stability in high-resolution displays.

How does the F5 bending option affect mechanical assembly?

The F5 lead bend (90° downward, 2.4–2.7 mm height) positions the TO-220FPAB tab for direct mounting to vertical heatsinks without standoff spacers. This reduces thermal resistance by 0.4°C/W versus straight-lead variants and aligns with IPC-7351B land pattern L3 = 24.16–26.9 mm, enabling automated placement in legacy CRT manufacturing lines.

Is the 2000 VRMS insulation rating tested per IEC 60747-5-1?

Yes - the 2000 VRMS isolation is type-tested per IEC 60747-5-1 Annex B, with 100% production hipot screening at 2500 VDC for 1 second. The insulation withstands ≥2000 VRMS for 60 seconds with leakage <10 µA, and capacitance remains stable at 7 pF ±0.5 pF across -40°C to +125°C, confirming suitability for Class I appliance safety requirements.