OHD3-40B
Thermostat Switch, Thermal Guard, OHD Series, Flange Mount, 40°C, Normally Closed, 110 VAC/DC, 300mA
| Manufacturer | KEMET |
|---|---|
| Manufacturer Part No | OHD3-40BCopy |
| Manufacturer Standard Lead Time | 39 weeks |
| Order Code | 2817310 |
| Product Range | OHD Series |
| Also Known As | USEO340B000000 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price (Incl GST) |
|---|---|
| 1+ | $11.300 ($12.995) |
| 25+ | $9.520 ($10.948) |
Product Information
| Manufacturer | KEMET |
|---|---|
| Manufacturer Part No | OHD3-40BCopy |
| Manufacturer Standard Lead Time | 39 weeks |
| Order Code | 2817310 |
| Product Range | OHD Series |
| Also Known As | USEO340B000000 |
| Technical Datasheet | |
| Switching Temperature | 40°C |
| Switching Temperature Tolerance | ± 5°C |
| Thermal Reed Switch Contact Type | Break |
| Mounting Style | Radial Tab |
| Sensor Mounting | Radial Tab |
| Thermal Reed Switch Terminals | Tab Leads |
| Product Range | OHD Series |
| Contact Resistance Max | 150mohm |
| Maximum Opening / Closing Power | 6W AC / DC |
| Maximum Opening / Closing Voltage | 110 VAC / VDC |
| Minimum Opening / Closing Current | 0.1mA |
| Maximum Opening / Closing Current | 300mA |
| Maximum Differential Temperature | 10°C |
| Approvals | CSA, TUV, UL |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
OHD3-40B is a OHD thermal guard developed for thermal problem counter which measures and safety standard conformity. Its unique proprietary design features a magnet and a temperature-sensing soft ferromagnetic substance called Thermorite®. The material’s magnetic flux density decreases as the temperature increases turning it into a paramagnetic substance at the Curie temperature. Typical applications include atmospheric temperature detection and overheating monitoring of power transistors, power modules, room heaters, hot gas heaters, PPCs, amplifiers, motors, HDDs, FDDs and other general appliances.
- Maximum opening/closing power of 6W
- High reliability for on/off operations
- High-speed response
- Long operational life
- Excellent environmental durability
- Extremely simple circuit design
- Operating temperature of 40°C
Technical Specifications
| Switching Temperature | 40°C |
|---|---|
| Thermal Reed Switch Contact Type | Break |
| Sensor Mounting | Radial Tab |
| Product Range | OHD Series |
| Maximum Opening / Closing Power | 6W AC / DC |
| Minimum Opening / Closing Current | 0.1mA |
| Maximum Differential Temperature | 10°C |
| SVHC | No SVHC (04-Feb-2026) |
| Switching Temperature Tolerance | ± 5°C |
|---|---|
| Mounting Style | Radial Tab |
| Thermal Reed Switch Terminals | Tab Leads |
| Contact Resistance Max | 150mohm |
| Maximum Opening / Closing Voltage | 110 VAC / VDC |
| Maximum Opening / Closing Current | 300mA |
| Approvals | CSA, TUV, UL |
Technical Docs (3)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Japan Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 90321080 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .0024 |