Wiseman MCA Series 2 kV / 5 W High-Voltage DC-DC Power Module

Overview

The Wiseman MCA Series is a compact, high-stability DC-DC high-voltage power module engineered for precision biasing and excitation in demanding scientific and analytical instruments. Based on zero-current resonant switching topology and proprietary high-voltage insulation design, the MCA delivers regulated output voltages from 50 V to 2 kV with up to 5 W continuous output power — all within a footprint of just 45 × 23 × 17 mm. Its core architecture prioritizes low electromagnetic interference (EMI), ultra-low output ripple (<0.001% p-p), and exceptional long-term stability (±0.001% per hour), making it particularly suited for applications where signal integrity, detector sensitivity, and thermal drift directly impact measurement fidelity — such as mass spectrometry, electron optics, radiation detection, and electrophoresis systems.

Key Features

• Wide programmable output range: 0.05–2 kV (13 discrete standard settings, with custom calibration available)
• Output power options: 3 W, 4 W, and 5 W models — optimized for low-duty-cycle, high-impedance loads
• Ultra-low noise performance: ≤0.001% peak-to-peak ripple, achieved via multi-stage filtering and shielded magnetics
• High short-term stability: ±0.001% per hour under constant thermal conditions; temperature coefficient of ±10 ppm/°C
• Robust protection suite: real-time arc detection, auto-recover short-circuit shutdown, and current limiting
• Flexible control interface: analog voltage (0–10 V) or potentiometer-based output voltage adjustment
• Full six-side mu-metal and conductive polymer shielding for EMI/RFI suppression — critical in multi-instrument lab environments
• PCB-mount form factor with through-hole and surface-mount compatible pinout — designed for automated assembly and space-constrained OEM integration
• Polarity-selectable output (positive or negative) without hardware modification
• Three environmental grades: Commercial (S), Industrial (G), and Extended (T) — validated across full operating and storage temperature/humidity ranges

Sample Compatibility & Compliance

The MCA module is widely deployed as an embedded HV supply in mass spectrometers (e.g., TOF, quadrupole, and ion trap systems), electron multiplier detectors, photomultiplier tube (PMT) bases, proportional and Geiger-Müller counters, electrostatic lenses, and electrophoretic separation platforms. It meets functional safety expectations for Class I laboratory equipment per IEC 61010-1 and supports EMC robustness in accordance with IEC 61000-4-2 (ESD), -4-3 (radiated RF), and -4-4 (electrical fast transients). While not CE-marked as a standalone end-product, its PCB-level design adheres to IPC-2221 spacing rules for 2 kV working voltage and incorporates creepage/clearance margins aligned with UL 61010-1 Annex G. For GLP/GMP-regulated installations, traceable calibration data and batch-specific test reports are available upon request.

Software & Data Management

As a fully analog-controlled module, the MCA does not incorporate digital firmware or communication interfaces. However, it is routinely integrated into instrument-level control architectures via external DACs and monitoring circuits. Customers implementing FDA 21 CFR Part 11-compliant systems may pair the MCA with host controllers that provide audit-trail-capable voltage setpoint logging, interlock status recording, and fault-event timestamping. Wiseman provides detailed application notes for closed-loop feedback integration using external HV dividers and operational amplifiers — enabling system-level stability validation per ISO/IEC 17025 clause 5.4.2.

Applications

• Mass spectrometry: Ion source biasing, detector dynode chain supply, and reflectron acceleration
• Electron microscopy: Filament bias, Wehnelt grid control, and electrostatic lens focusing
• Radiation detection: PMT gain stabilization, proportional counter anode bias, and scintillation detector preamplifier HV
• Bioanalytical systems: Capillary electrophoresis electrode drive, DNA sequencer fluidic actuation, and MALDI plate charging
• Industrial metrology: Electrostatic chuck biasing, laser cavity Q-switching, and precision electrostatic printing
• Research infrastructure: Plasma diagnostics, particle accelerator beamline components, and vacuum chamber conditioning

FAQ

Is the MCA module certified for medical device integration?
The MCA is designed to meet essential safety and EMC requirements for incorporation into Class IIa/IIb medical analyzers (e.g., clinical mass spectrometers or radiopharmaceutical QC systems), but final regulatory approval rests with the OEM’s system-level certification process.
Can output polarity be reversed in-field?
Yes — polarity selection is determined during manufacturing but can be specified at order time; dual-polarity variants require separate model designation and are not user-switchable post-installation.
What is the recommended input power supply specification?
A well-regulated 24 V DC source with ≤50 mV RMS ripple and ≥1.5 A continuous current capability is required; input transient suppression (TVS diode) is advised for industrial environments.
Does Wiseman offer calibration certificates traceable to NIST?
Yes — optional ISO/IEC 17025-accredited calibration with uncertainty reporting is available for volume orders; standard units ship with factory test data per MIL-STD-883 method 5005.
Are custom voltage ranges supported beyond 2 kV?
Yes — Wiseman offers extended-range derivatives (up to 30 kV) under the MCB and MCP product families; lead times and MOQs apply for non-standard configurations.