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Littelfuse PT103J2 Precision Thermistor

Littelfuse PT Series standard precision interchangeable thermistors offer high accuracy, stability, and fast thermal response, ideal for temperature sensing and control in industrial applications. These epoxy-encapsulated devices feature small size, long life, and are designed to eliminate the need for costly circuit calibration due to their interchangeability. Suitable for environments from -80°C to +150°C, they are available in various resistance values, with stable β coefficients and low dissipation ratings, ensuring reliable performance in temperature measurement and control systems.

Authorized Distributors
Source:DigiKey
Part No:PT103J2
Stock:22508
Inv Date:05-28-2026
Price: Unit price: $1.86
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Part No:PT103J2
Stock:6217
Inv Date:05-29-2026
Price: Unit price: $1.62
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Part No:PT103J2
Stock:377
Inv Date:05-28-2026
Price: Unit price: $1.03
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Part No:PT103J2
Stock:5023
Inv Date:05-28-2026
Price: Unit price: $1.03
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Littelfuse PT103J2 Precision Thermistor Specifications:

  • Resistance: 100,000Ω at 25°C (PT104J2, PTI04R2) or 10,000Ω (PT103J2), various resistance values available
  • Temperature Range: -80°C to +150°C, with stability up to +120°C
  • Thermal Time Constant: 30 seconds for response
  • Dissipation Rating: 30 mW, ensuring stable operation
  • Beta Coefficient: around 3892 K (PT222J2, PT302/2, PT502J2, PT602J2, PT203J2, PT303J2, PT503J2, PT104J2); 3875 K (PT103G2), R scale variants
  • Response Time: 1 second (air stirred or oil)
  • Lead Material: Tin-plated alloy wire, 30 AWG, maximum length 1.5 inches
  • Encapsulation: Epoxy coating for durability
  • Electrical Specifications: Conductance varies with resistance value, low power dissipation ensures longevity
  • Available Options: Custom encapsulants, resistance tolerances, probe housings

Buy the Littelfuse PT Series – Reliable Temperature Sensors for Industrial Applications

Purchase the Littelfuse PT103J2 precision thermistor online today to ensure accurate temperature measurement and control in your industrial systems. Our high-stability, epoxy-encapsulated thermistors are designed for long-lasting performance, offering reliable thermal response from -80°C to +150°C. Ideal for temperature sensing applications requiring low dissipation and precise resistance values, these thermistors streamline calibration processes by being interchangeable across different circuits. Elevate your project’s reliability by choosing our precision thermistors, available through easy online ordering with fast delivery and dedicated support.

Order your Littelfuse PT103J2 thermistor today and enhance your temperature sensing accuracy with our stable, high-performance sensor solutions.

Frequently Asked Questions

Where can I buy Littelfuse PT103J2?

You can click on the BUY or RFQ button to purchase PT103J2 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part PT103J2?

You can download the PT103J2 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of PT103J2?

Littelfuse

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