Fast-Response Type J Thermocouple: Φ1.5mm Probe with High-Temp Kapton Lead Cable

Product Overview

The Grounded Type J (Iron/Constantan) thermocouple is engineered for industrial and laboratory applications where space is extremely limited and thermal response time is critical. Featuring an ultra-slim $Phi1.5text{mm}$ stainless steel probe, this sensor minimizes thermal lag, providing near-instantaneous temperature data.

The probe is paired with a 1-meter Kapton-insulated lead wire, a high-performance polyimide material known for its exceptional dielectric strength and stability in high-temperature or vacuum environments. The grounded junction ensures the thermocouple is in direct contact with the probe tip for maximum heat transfer efficiency.

Technical Features

• Ultra-Slim 1.5mm Diameter: The low thermal mass of the 1.5mm probe allows it to react to temperature fluctuations significantly faster than standard sensors.

• Grounded Junction Design: By welding the sensor junction directly to the sheath tip, we achieve the fastest possible response time—ideal for dynamic thermal profiling.

• Premium Kapton (Polyimide) Lead Wire: 1 meter of high-temp Kapton wire that remains flexible and electrically stable from -260°C up to +260°C (continuous use).

• 250mm Stainless Steel Probe: Provides 250mm of rigid reach for immersion into manifolds, small-diameter tubes, or complex machine parts.

• Reinforced Plastic Transition: A durable plastic transition sleeve protects the connection between the rigid probe and the flexible lead wire, ensuring long-term strain relief.

Structure

Specification

Core Applications

• Plastic Injection & Extrusion: Precise temperature monitoring in small-diameter nozzle heaters and manifolds.

• Laboratory & Scientific Research: High-speed thermal analysis where every millisecond counts.

• Vacuum & Aerospace: Kapton's low-outgassing properties make it ideal for cleanroom and vacuum chamber use.

• Packaging Machinery: Monitoring temperatures in slim heat-sealing bars and compact cutting tools.

• Medical Equipment: Temperature control in sterilized, high-precision thermal systems.