RH3HVD10MOHMF Japan Finechem Resistor (Resistors, Axial Diameter Horizontal Mounting) In Stock
Japan Finechem RH3HVD10MOHMF is a superhigh precision high-voltage axial resistor with 10 MOhm resistance, 42x55 mm body, and 1 mm pin diameter, designed for precision voltage dividers and high-voltage measurement circuits.
- Manufacturer
- Japan Finechem
- Package
- Resistors, Axial Diameter Horizontal Mounting
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RH3HVD10MOHMF Datasheet PDF
- Category
- Resistor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Superhigh precision 10 MOhm resistance value with extremely tight tolerance for accurate high-voltage divider and measurement circuit design
- High-voltage rated axial leaded package with 42x55 mm body and 1 mm pin diameter for reliable PCB through-hole mounting
- Japan Finechem RH3HV series construction engineered for stable resistance under sustained high-voltage stress conditions
- Axial horizontal mounting format enabling low-profile installation with secure mechanical anchoring in high-voltage power supply assemblies
Applications
The Japan Finechem RH3HVD10MOHMF is engineered for precision high-voltage measurement and voltage division in medical imaging equipment, high-voltage power supplies, and scientific instrumentation where 10 MOhm accuracy is critical. Its large body format and 1 mm pin diameter ensure adequate creepage and clearance distances for safe operation in systems with working voltages in the kilovolt range. The resistor is also used in oscilloscope probe networks, electrostatic measurement circuits, and electron beam equipment where superhigh precision and stable resistance under prolonged high-voltage bias are mandatory.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for RH3HVD10MOHMF:
suggested
Frequently Asked Questions
What resistance value does the RH3HVD10MOHMF provide and how is it used in a high-voltage divider circuit?
The RH3HVD10MOHMF provides a 10 MOhm resistance value, making it suitable as the upper element in a high-voltage resistor divider network. When paired with a lower-value precision resistor, the 10 MOhm value allows division of kilovolt-range voltages down to measurable millivolt levels with low loading effect on the source being measured.
How does the 42x55 mm body size of the RH3HVD10MOHMF ensure safe operation at high voltages?
The large 42x55 mm body provides sufficient creepage distance and surface path length to prevent voltage breakdown or surface leakage currents at working voltages in the kilovolt range. IEC 60664 creepage requirements increase significantly above 1 kV, and the RH3HVD10MOHMF physical dimensions are selected to meet these insulation coordination requirements in high-voltage equipment.
For what precision measurement instruments is the RH3HVD10MOHMF superhigh precision rating particularly important?
The superhigh precision designation is critical in oscilloscope high-voltage probes, insulation resistance testers, and electrostatic field meters where the 10 MOhm input impedance must remain stable to within fractions of a percent across temperature and bias. Resistance drift in high-voltage probes directly translates into measurement error, making precision resistors like the RH3HVD10MOHMF essential for calibration-grade instruments.
How should the RH3HVD10MOHMF be mounted on a PCB to maintain its precision specification under real operating conditions?
The axial horizontal mounting style with 1 mm diameter pins requires through-hole PCB pads with adequate annular ring for mechanical stability, and the 42 mm lead pitch must be matched in the PCB footprint. Guard rings around the resistor body isolate the 10 MOhm element from surface leakage paths, preserving measurement accuracy in humid environments or at sustained high-voltage bias above 1 kV.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About Japan Finechem
Japan Finechem is a leading electronic component manufacturer. FindMyChip sources Japan Finechem ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Japan Finechem
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”