Product Overview

The ATH100K1R8B3950K is an ultra-stable axial-leaded thermistor from Analog Technologies, Inc. It features glass encapsulation for long-term stability and reliability, offering a wide operating temperature range from -55C to 250C. With high resistance accuracy of 1% and a quick response time of 20s, this thermistor is ideal for cost-sensitive temperature sensing applications in automotive electronics, industrial electronics, and home appliances. Its compact size and robust construction make it suitable for precise temperature measurement, compensation, and control in various electronic circuits and systems.

Product Attributes

• Brand: Analog Technologies, Inc.
• Product Type: Ultra-Stable Axial Leaded Thermistor
• Encapsulation: Glass
• Leads: Tin-plated Copper-Clad Steel Wire
• Compliance: 100% Lead (Pb)-free and RoHS Compliant

Technical Specifications

Part Number Convention

A TH 100K 1R8 B3950K

• A: Company Code (Analog Technologies, Inc.)
• TH: Product Type (Thermistor)
• 100K: Resistance @ 25C (R25 = 100k)
• 1R8: Diameter (1.8mm, R = Decimal Point)
• B3950K: B Value (B25/50 = 3950K)

Reliability Data

Storage and Handling Recommendations

Storage:

• Store in original packaging; do not open before storage.
• Recommended storage temperature: 25C to +45C.
• Relative humidity: Less than 75% on average, maximum 95% (no dew precipitation).
• Avoid exposure to heat or direct sunlight.
• Do not store in environments with corrosive gases (SOx, Cl, etc.).
• Use thermistors as soon as possible after opening factory seals.
• Recommended soldering within 12 months for SMDs and 24 months for leaded components after shipment.

Handling:

• Prevent components from being dropped to avoid damage.
• Use gloves; do not touch with bare hands.
• Prevent contamination of the thermistor surface.

Soldering:

• Use resin-type or non-activated flux.
• Ensure proper preheating to avoid ceramic cracks.
• Rapid cooling by dipping in solvent is not recommended.
• Completely remove flux residue after soldering.

Notices

1. Read and follow all warnings, cautions, and product-specific notes for safe and proper use. Failure to do so may result in malfunction, damage, or injury.
2. Products and specifications are subject to change without prior notice due to continuous product improvement. Check descriptions and specifications before ordering. ATI reserves the right to discontinue products.
3. ATI provides information on typical requirements and applications but cannot guarantee suitability for all customer applications. Customers must evaluate product appropriateness for their specific needs.
4. ATI warrants products to perform according to specifications for one year from the date of sale, except when damaged due to excessive abuse. Defective products within the warranty period can be exchanged free of charge.
5. ATI reserves the right to make changes or discontinue products or services without notice. Obtain the latest information before ordering.
6. All products are sold subject to terms and conditions of sale, including warranty, patent infringement, and limitation of liability. Customers are responsible for their applications using ATI products; ATI assumes no liability for application assistance or customer product design.
7. ATI does not grant any license, express or implied, under any patent right, copyright, mask work right, or other intellectual property right.
8. Publication of information regarding third-party products or services does not constitute approval, warranty, or endorsement by ATI.
9. ATI retains ownership of all rights for special technologies, techniques, designs, and modifications for its products.
10. In applications requiring high operational safety, especially those where component malfunction could threaten human life or health, customers must ensure operational safety through suitable design or other measures (e.g., protective circuitry, redundancy) to prevent injury or damage in the event of a component malfunction or failure.