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The 59010-1-T-02-F is a subminiature cylindrical reed proximity sensor manufactured by Littelfuse (formerly Hamlin). Designed for space-constrained installations, the sensor measures 9.0 mm in length and 3.0 mm in diameter (0.354 in × 0.118 in), requiring only a 3 mm mounting hole. It features a normally open (NO) single-pole contact encapsulated in a hermetically sealed, inert-gas-filled glass tube. The sensor switches up to 170 VDC at a maximum rated power of 10 W, with a rated carry current of 350 mA. Operating temperature ranges from -40°C to +85°C. Cable length and connector style are customizable to fit specific assembly requirements. For calibrated actuation, the sensor pairs with the 57020-000 magnetic actuator, which is sold separately.
The 9.0 mm × 3.0 mm body fits into cavities inaccessible to standard reed switches. The cable-mount configuration allows flexible routing inside compact electronic enclosures, medical devices, and security equipment, reducing the internal layout footprint for end-product designers.
The internal reed contact is sealed in a gas-filled glass capsule, isolating it from dust, moisture, and corrosive contaminants. This construction supports operation in high-humidity and contaminated ambient conditions without contact oxidation or signal drift.
As a magnetically actuated passive component, the sensor draws zero current in the idle (open) state. This characteristic reduces system power consumption in battery-powered devices where active semiconductor proximity sensors would require continuous bias current.
The sensor operates through magnetic field induction, with no physical contact between the actuator and the switching element. This eliminates friction-based contact wear, supporting extended operational lifespans under logic-level micro loads.
Full Product Model | 59010-1-T-02-F |
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Product Name | Firecracker Subminiature Cylindrical Reed Sensor |
Overall Outer Dimension | Length: 9.0 mm, Diameter: 3.0 mm (0.354" × 0.118") |
Contact Type | Normally Open (NO) Single Pole Contact |
Max Switching Voltage | 170 VDC |
Rated Switching Power | 10 W |
Working Principle | Non-contact magnetic induction proximity sensing |
Internal Contact Structure | Hermetically sealed inert gas-filled glass tube |
Mounting Requirement | Only 3mm diameter mounting hole needed |
Customizable Options | Multiple cable lengths, various terminal connectors |
Recommended Matching Accessory | 57020-000 Magnetic Actuator (Sold Separately) |
Standby Power Consumption | 0 mA (No power draw under idle state) |
Service Life | Up to millions of switching cycles (logic-level micro loads) |
Applicable Environment | High humidity, dusty and contaminated ambient conditions |
The sensor provides position feedback and stroke limit control in precision instruments, small automation equipment, and smart home appliances, detecting the presence or absence of a magnetic actuator without physical contact.
Installed as door or window contact sensors in anti-theft security systems, the sensor triggers an alarm signal when the magnetic actuator moves out of sensing range, indicating an opened entry point.
Used in conjunction with a floating magnetic buoy to detect liquid surface height in small tanks, beverage dispensers, and compact fluid storage containers.
Mounted on miniature linear actuators to output position signals, assisting control circuits in determining extension and retraction status of electric actuator assemblies.
A reed sensor uses a mechanical contact sealed in a glass tube that closes under a magnetic field and requires no external power. A Hall sensor IC is a semiconductor device that outputs an electrical signal proportional to magnetic field strength and requires a supply voltage. The 59010-1-T-02-F is a reed sensor, not a Hall effect integrated circuit.
The recommended matching actuator is the 57020-000, sold separately. Using the matched actuator ensures calibrated sensitivity and consistent triggering across production units.
The rated carry current is 350 mA. The maximum switching voltage is 170 VDC, and the maximum rated switching power is 10 W. These parameters should not be exceeded in application design.
Yes. The hermetically sealed contact structure isolates the switching element from moisture and dust, supporting operation within the -40°C to +85°C operating temperature range in humid and contaminated ambient conditions.
Yes. Multiple cable lengths and terminal connector styles are available for commercial procurement and OEM manufacturing. Contact our sales team for custom configuration pricing and minimum order quantities.
