DCM28AP120T320A50 - 320W 28V to 12V Isolated DC-DC Module | Vicor
N.º da peça: DCM28AP120T320A50 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $412.5 | $412,50 |
| 10 | $388.2 | $3.882,00 |
| 50 | $365 | $18.250,00 |
| 100 | $342 | $34.200,00 |
| 250 | $318.75 | $79.687,50 |
DCM28AP120T320A50 Visão geral
What is a DCM DC-DC converter? A Direct Conversion Module is a brick-format isolated DC-DC converter that eliminates intermediate conversion stages by directly stepping down or stepping up a DC bus voltage at high switching frequencies (MHz-range ZVS topology). DCM modules sit in the power-management hierarchy under point-of-load converters (POLs) and bus converters, offering higher power density and lower noise than traditional isolated brick converters built from discrete transformers and PWM controllers. Vicor's DCM line specifically targets 48 V, 28 V, and 24 V distributed-bus architectures common in MIL-COTS, industrial automation, and railway electronics.
Key features include 26.67 A continuous output current, 320 W peak power delivery, 2250 VDC isolation between input and output, parallel operation capability for higher-power arrays, and a typical efficiency above 92 % at nominal line. The module operates from -20 °C to +125 °C case temperature and offers analog control and trim functions for in-system tuning. Optional features in the broader DCM3623 family include constant-voltage / constant-current analog interfaces.
Architecturally, the DCM uses Vicor's proprietary Sine Amplitude Converter (SAC™) topology, which employs a zero-voltage-switching resonant front end feeding a high-frequency isolation transformer followed by a synchronous-rectifier secondary. This topology yields a clean trapezoidal output waveform with minimal common-mode noise and robust regulation across wide load and line conditions.
Typical applications include 28 V MIL-STD-1275 vehicle power conditioning, 24 V industrial-bus point-of-load regulation, battery-backed 36 V e-mobility systems, FPGA/ASIC core and aux-rail power, and front-end power for downstream Vicor PRM™ and VTM™ stages in a Factorized Power Architecture (FPA). Designers typically use the DCM as a bus converter or as a stand-alone POL in space-constrained embedded systems.
When designing with this device, ensure adequate thermal management through the top-side cold plate or PCB copper; the high power density demands either a heatsink or sufficient airflow. Observe the recommended input fusing and inrush-limiting circuitry in the datasheet typical application section, since the Sine Amplitude Converter topology can source high peak inrush if the upstream bus capacitance is large.
This page synthesizes distributor pricing, drop-in cross-package equivalents, and practical design notes not found in the standalone manufacturer datasheet.
Alternativas drop-in para DCM28AP120T320A50 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DCM28AP120T320A50 (mesmo formato e footprint) — diferindo em Input Voltage Range, Mounting Type, Output Voltage.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MDCM28AP120M320A50
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DCM3623T50M13C2T00
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DCM3623T50M13C2M00
✅ Drop-In✓ Em estoque
$386.83 / unidade
Ver ficha técnica →MDCM28AP120M320A50-001
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MDCM24AP120M320A50
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DCM28AP120T320A50 Classificações máximas e características elétricas
| Topologia | Isolated DC-DC Converter (DCM Sine Amplitude Converter) |
| Manufacturer | Vicor Corporation |
| Product Family | VI Chip® DCM® (Direct Conversion Module) |
| Base Part Number | MDCM28AP120M320A50 / DCM3623T50M13C2C00 |
| Faixa de tensão de entrada | 16 V to 50 V (28 V nominal) |
| Tensão de saída | 12 V (nominal, regulated) |
| Output Current | 26.67 A continuous |
| Output Power | 320 W |
| Isolation Voltage | 2250 VDC (input to output) |
| Temperatura de operação | -20 °C to +125 °C (case, A50 grade) |
| Tipo de montagem | Through Hole (Chassis-mount or PCB-thru package) |
| Cooling | Top-side cold plate (T-suffix form factor) |
| Encapsulamento | VI Chip® DCM chassis-mount through-hole |
| Reflow Solder Compatibility | Not intended for reflow solder attach (per datasheet note) |
| Standards / Compliance | UL 60950-1, EN 60950-1, CE marked, RoHS |
Guia de Configuração de Pinos do DCM28AP120T320A50 vi chip® dcm chassis-mount through-hole
Configuração de pinos para DCM28AP120T320A50 (pacote vi chip® dcm chassis-mount through-hole). Este dispositivo de potência possui terminais de gate, drain e source. Para pacotes não polarizados, consulte o datasheet do fabricante para a orientação exata do pino 1 e detalhes do footprint. Aplicações comuns incluem projeto de fontes de alimentação, acionamento de motores e comutação de cargas.
Nenhum dado detalhado de pinagem disponível para DCM28AP120T320A50.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
DCM28AP120T320A50 é adequado para 6 aplicaçãos: 28V Military Ground Vehicle Power, FPGA / ASIC Core and Aux-Rail Power, Industrial 24V/28V Distributed Bus Power, Rail / Rolling Stock Auxiliary Power, Battery-Powered E-Mobility Auxiliary Rails, Aerospace / Drone Auxiliary Power.
28V Military Ground Vehicle Power
The DCM28AP120T320A50 is a textbook fit for 28V MIL-STD-1275 vehicle electrical systems because it accepts the full 16V-to-50V input range that covers cranking transients, load-dump surges, and steady-state 28V bus operation in tracked and wheeled military vehicles. The 320W continuous output capacity reliably powers 12V-downstream avionics, mission computers, and radio racks after the upstream EMI filter stage. With 2250 VDC input-to-output isolation the module protects downstream sensitive electronics from ground-loop faults common in vehicle chassis wiring. Unlike discrete forward or flyback converters built from discrete PWM controllers and transformers, the DCM's Sine Amplitude Converter topology delivers near-flat efficiency across the 30 %-100 % load range that vehicle electronics actually operate in. The T-suffix top-side cooled form factor is ideal for cold-plate-cooled rugged enclosures where heat rejection to a sealed chassis is required.
Recomendado
FPGA / ASIC Core and Aux-Rail Power
High-current digital ICs such as FPGAs, SoCs, and ASICs demand clean low-voltage rails (0.85V-3.3V) at 100A+ levels, and the DCM28AP120T320A50 fits perfectly as the upstream intermediate-bus converter in a two-stage Factorized Power Architecture (FPA). Designers place the DCM28AP120T320A50 directly after the 28V distribution bus, then cascade a Vicor VTM or buck regulator to deliver the final point-of-load rail. The 92-93 % typical efficiency of the DCM stage keeps total system efficiency above 85 % even with a 4:1 or 6:1 downstream step-down ratio - far higher than a single-stage 28V-to-1V buck converter. The 2250 VDC isolation allows the FPGA and downstream circuitry to live on a separate ground domain from the 28V vehicle or industrial bus, which is critical for noisy switching environments. The T-suffix top-side cooling also enables mounting the DCM directly under a cold plate that already cools the BGA FPGA below it.
Recomendado
Industrial 24V/28V Distributed Bus Power
Factory automation systems using 24V industrial busses (per IEC 61131-2) - and emerging 28V industrial busses - need an isolated, regulated 12V rail to power motor drivers, sensors, and PLC controllers. The DCM28AP120T320A50's 16V-to-50V input covers the full 24V nominal/28V nominal range with margin for supply transients, and its 320W continuous power supports multi-axis motion-control systems drawing 12V at 26.67A continuous. The 320W capacity can drive several PoE (Power over Ethernet) injectors downstream in industrial networking, or in 24V forklift/e-AGV battery-bus designs the DCM steps the battery voltage down to a regulated 12V rail for sensors, drives, and HMIs. The wide operating-temperature range (-20 °C to +125 °C) accommodates unconditioned factory cabinets with elevated ambient temperatures.
Recomendado
Rail / Rolling Stock Auxiliary Power
Railway rolling-stock auxiliary power systems frequently derive 24V-to-36V DC intermediate buses from the train's main traction battery, and the DCM28AP120T320A50 delivers a regulated 12V rail for CCTV recorders, passenger information displays, ticket vending machines, and door controllers. The 2250 VDC isolation is critical in rail environments where chassis-to-ground potential can reach hundreds of volts during regenerative-braking transients, and the modular brick format simplifies country-specific certification re-use. Railway-grade environmental specs (-20 °C to +125 °C with optional -40 °C variants) cover the EN 50155 ambient-temperature envelope without derating. The 92-93 % efficiency also cuts inverter sizing and cooling-fan load in passenger cars where battery autonomy and HVAC power budgets are tightly constrained.
Recomendado
Battery-Powered E-Mobility Auxiliary Rails
Electric vehicles, e-bikes, e-scooters, and material-handling AGVs operate from 36V-to-72V batteries that must be converted to lower voltage rails for control electronics, lighting, and instrumentation. The DCM28AP120T320A50 is well-suited when the battery nominal voltage is in the 24V-36V range, providing a clean regulated 12V from a varying bus. The 320W continuous capacity can power DC/DC converters for headlights, telematics modules, and sensor clusters simultaneously. High-efficiency SAC topology means less waste heat inside sealed battery compartments where thermal management is difficult. The 320W output can also charge 12V lead-acid or lithium auxiliary batteries in dual-battery vehicle systems, replacing inefficient low-frequency alternator chargers.
Recomendado
Aerospace / Drone Auxiliary Power
UAVs, eVTOL aircraft, and aerospace platforms use 28V DC buses per MIL-STD-704 and DO-160 standards and need isolated, tightly-regulated 12V rails for avionics, flight controllers, and payload electronics. The DCM28AP120T320A50's 2250 VDC isolation provides the safety barrier required between the power bus and sensitive flight-control electronics, and its compact ChiP form factor minimizes PCB real estate in weight-constrained platforms. The wide 16V-to-50V input ride-through covers full MIL-STD-704 steady-state and transient envelopes (22V-29V steady-state, 18V-50V transient) without latch-up or output droop. The high switching frequency of the SAC topology eliminates audio-band noise that could interfere with sensitive RF communication links and GPS receivers on the same aircraft.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DCM28AP120T320A50 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MDCM28AP120M320A50 | DCM3623T50M13C2T00 | DCM3623T50M13C2M00 | MDCM28AP120M320A50-001 |
|---|---|---|---|---|---|
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor |
| Package | VI Chip DCM through-hole (T-suffix top-side coolable) | VI Chip DCM through-hole (M-suffix chassis-mount) | VI Chip DCM3623 top-side coolable - same | VI Chip DCM3623 top-side coolable - same | VI Chip DCM through-hole chassis-mount |
| Input Voltage Range | 16 V to 50 V (28 V nominal) | 16 V to 50 V (28 V nominal) | 16 V to 50 V (28 V nominal) | 16 V to 50 V (28 V nominal) | 16 V to 50 V (28 V nominal) |
| Output Voltage | 12 V regulated | 12 V regulated | 12 V regulated | 12 V regulated | 12 V regulated |
| Output Power | 320 W | 320 W | 320 W | 320 W | 320 W |
| Cooling Path | Top-side cold plate | Baseplate / chassis-bottom | Top-side cold plate (same as T-variant) | Top-side cold plate (same as T-variant) | Baseplate / chassis-bottom |
| Operating Temperature | -20 °C to +125 °C (A50 grade) | -20 °C to +125 °C (A50 grade) | -40 °C to +125 °C (T grade) | -55 °C to +125 °C (M grade) | -20 °C to +125 °C (A50 grade) |
| Isolation Voltage | 2250 VDC | 2250 VDC | 2250 VDC | 2250 VDC | 2250 VDC |
| Special Features | High-density VIChip DCM | High-density VIChip DCM (base plate cooling) | Extended low-temp grade T | Full MIL-temp grade M | Conformal-coated (-001 option) |
Principais diferenciais
- Top-side cooling in same VI Chip® DCM3623 footprint (vs MDCM28AP120M320A50)
- Wider operating-temperature A50 grade than competitor bricks (vs Generic 28V-to-12V isolated brick (e.g., TDK-Lambda PVD series))
- Proprietary Sine Amplitude Converter topology (vs PWM-controller-based forward/flyback 320W brick)
Notas de projeto
Estimated: at 320W output and ~93 % efficiency, dissipation is approximately 24W. The DCM28AP120T320A50 (T-suffix, top-side coolable) requires a thermal interface material (TIM) and a cold plate or heat-sink with a thermal resistance below ~2 °C/W to keep junction rise under 50 °C at full load. Designers should follow the Vicor DCM3623 thermal-management application note for derating curves above +85 °C case. Avoid mounting in enclosed cavities without forced airflow or cold-plate coupling - hot spots on the top-side pad can reach +120 °C at full load with no cooling.
Vicor DCM28AP120T320A50 modules are NOT intended for reflow solder attach per the datasheet. Hand-solder or wave-solder with the chassis-mount standoff fixtures during PCB-thru termination. Use multiple plated through-hole vias on input/output pads to carry the 26.67A full load - Vicor's reference layouts use 2 oz copper with a minimum 5-via pattern per power pad. Maintain a creepage clearance of at least 3 mm around input pads to meet the 2250 VDC isolation clearance requirement; do not route low-voltage secondary signal traces under or between input pads.
Do not hot-swap the DCM28AP120T320A50 on a charged bus without precharge - the Sine Amplitude Converter topology can source high inrush currents when upstream bus capacitance is large. Add a soft-start/ORing controller upstream (Vicor recommends the ORing controller and inrush-limit circuit shown in section 6 of the datasheet). Also avoid placing more than 24V-rated analog signal traces within 2 mm of the +IN pad - the 50V transient transient ratings can drive common-mode noise into sensitive analog lines.
Informações de conformidade
RoHS and REACH compliant per Vicor product compliance declarations. UL 60950-1 and EN 60950-1 recognized; CE marked. AEC-Q100 not applicable (industrial/defense power module, not automotive). Conflict-minerals compliant per Vicor policy. Detailed compliance certificates available on request from Vicor's product-compliance team.
