Wiseman MM Series 0.3 kV / 0.1 W PCB-Mountable High-Voltage Power Module
| Brand | Wiseman |
|---|---|
| Model | MM |
| Output Voltage | 0.3 kV (300 V) |
| Output Power | 0.1 W |
| Ripple & Noise | ≤5 mV<sub>pp</sub> |
| Stability | 0.001% per hour |
| Temp. Coefficient | 10 ppm/°C |
| Dimensions | 11 mm × 11 mm × 11 mm |
| Weight | 5 g |
| Input Voltage | 5 ±0.5 V DC |
| Control Interface | 0–2.5 V analog voltage or external potentiometer |
| Polarity | Selectable positive/negative output |
| Shielding | Full six-side EMI shielding |
| Protection | Reverse polarity, overcurrent, short-circuit, arc detection |
| Operating Temp. (Commercial Grade) | –10°C to +50°C (case) |
| Compliance | Designed for OEM integration in analytical and scientific instrumentation |
Overview
The Wiseman MM Series is a compact, high-precision DC/DC high-voltage power module engineered for demanding OEM applications in analytical instrumentation and scientific research. Based on zero-current resonant topology and advanced high-voltage insulation design, the MM module delivers stable, low-noise bias voltage to sensitive detector components—including photomultiplier tubes (PMTs), mass spectrometer ion optics, electron multipliers, microchannel plates (MCPs), and gas ionization detectors. Its ultra-small 11 mm cubic footprint enables direct PCB mounting without heatsinking, making it ideal for space-constrained instrument architectures such as portable mass spectrometers, benchtop GC-MS detectors, and miniaturized radiation measurement systems. The module operates from a single 5 V ±0.5 V input and provides regulated output voltages up to 300 V DC with programmable polarity—supporting both positive and negative bias configurations required across diverse detector topologies.
Key Features
- Ultra-compact form factor: 11 mm × 11 mm × 11 mm, weight 5 g—designed for surface-mount integration on instrument mainboards
- Low output ripple and noise: ≤5 mVpp (typical), achieved via six-side conductive shielding and optimized high-frequency resonant conversion
- High long-term stability: 0.001% per hour drift; temperature coefficient of only 10 ppm/°C—critical for quantitative detector gain calibration
- Programmable output control: 0–2.5 V analog voltage input (100 kΩ impedance) or external potentiometer interface for precise remote voltage setting
- Comprehensive protection suite: reverse input polarity protection, overcurrent limiting, short-circuit latching, and arc-fault detection with automatic recovery
- Wide operating temperature range options: Commercial (–10°C to +50°C case), Industrial (–25°C to +65°C), and Extended (–40°C to +95°C) grades available
- OEM-optimized electrical performance: fast 50 ms output rise time (0–99%), load regulation ≤0.01%, line regulation ≤0.001%
Sample Compatibility & Compliance
The MM module is specifically validated for use with low-power, high-impedance detector loads typical in analytical instrumentation—including PMTs, proportional counters, Geiger-Müller tubes, ionization chambers, and electrostatic lens assemblies in quadrupole and time-of-flight mass spectrometers. Its low leakage current (<1 nA at rated voltage) and minimal capacitive coupling ensure signal integrity in high-gain analog front-ends. While the module itself carries no third-party safety certification (e.g., UL/IEC 61010), its design adheres to fundamental EMC principles per CISPR 32 Class B limits for conducted emissions, and thermal management complies with IPC-7351B land pattern standards for reliable reflow soldering. When integrated into final instruments, the MM supports compliance with FDA 21 CFR Part 11 (via host system audit trail), ISO/IEC 17025 traceability requirements, and GLP/GMP environmental monitoring protocols where stable HV bias is critical to measurement reproducibility.
Software & Data Management
As a hardware-level power module, the MM does not include embedded firmware or digital communication interfaces. However, its analog voltage control input is fully compatible with standard laboratory DAQ systems (e.g., National Instruments PXI, Keysight U2300A) and microcontroller-based instrument controllers (ARM Cortex-M4/M7, STM32H7). Integration requires simple analog I/O configuration—no proprietary drivers or SDKs. For automated calibration workflows, the module’s stability and repeatability enable traceable HV verification using NIST-traceable high-voltage meters (e.g., Keithley 2410, Fluke 8508A). All performance specifications are documented per ISO/IEC 17025-compliant test reports available upon request for OEM qualification.
Applications
- Mass spectrometry: Ion source bias, detector dynode chain supply, and MCP voltage staging
- Radiation detection: PMT anode supply in scintillation counters and gamma spectrometers
- Electron microscopy: Electrostatic lens bias in compact SEM/TEM beam columns
- Analytical chemistry: Electrophoresis high-voltage drivers and capillary electrophoresis power supplies
- Physics research: Electrostatic particle traps, ion beam focusing, and plasma diagnostics sensors
- Medical devices: Portable X-ray detector bias, dosimetry probe conditioning, and laser diode driver pre-bias stages
FAQ
What is the maximum continuous output current at 300 V?
At 300 V output, the MM module delivers up to 333 µA (0.1 W / 300 V), consistent with its 0.1 W power rating.
Can the MM module be paralleled for higher current?
No—parallel operation is not supported due to lack of current-sharing circuitry; for higher power, consult Wiseman’s MV or MH series modules.
Is the output referenced to ground or floating?
The output is fully floating, enabling either grounded-cathode or grounded-anode detector configurations.
Does the module support remote sensing?
No—remote sense capability is not implemented; voltage regulation is performed at the module output terminals.
What is the recommended PCB layout for EMI suppression?
Use solid ground plane beneath the module, minimize trace lengths for input/output paths, and place 10 µF ceramic + 100 µF tantalum bulk capacitance within 5 mm of the input pins.
