Ultra-Stable Miniature Thermistor - ATH5KR8B3950K

Product Overview

The Analog Technologies ATH5KR8B3950K is an ultra-stable miniature thermistor featuring glass encapsulation for enhanced long-term stability and reliability. Its small size (0.8mm 1.65mm), high resistance accuracy (1%), and quick response time make it ideal for precise temperature sensing in demanding applications such as laser diodes and optical components. It also offers a cost-effective solution for automotive electronics, industrial electronics, and home appliances requiring accurate temperature monitoring. Unlike conventional epoxy-encapsulated thermistors, the ATH5KR8B3950K provides superior performance across a wide temperature range (40C to 200C).

Product Attributes

• Brand: Analog Technologies, Inc.
• Product Type: Thermistor
• Encapsulation: Glass
• Leads: Dumet wires (copper-clad FeNi)
• Compliance: 100% Lead (Pb)-free and RoHS Compliant

Technical Specifications

Part Number Convention

ATH5KR8B3950K

• A: Company Code (Analog Technologies, Inc.)
• TH: Product Type (Thermistor)
• 5K: Resistance @ 25C (R25 = 5k)
• R8: Diameter (R8 = 0.8mm, R = Decimal Point)
• B3950K: B Value (B25/50 = 3950K)

Resistance-Temperature Characteristics

B25/50 = 3950K, R25 = 5k, TR = 25C, R25: 1%

(Detailed table with temperature, resistance, relative resistance variation, temperature measurement error, and temperature coefficient is available in the original document.)

Storage and Handling Guidelines

• Store in original packaging between 25C to +45C with relative humidity <75% (max 95%). Avoid dew precipitation.
• Do not expose to heat or direct sunlight during storage.
• Avoid contamination of the thermistor's surface.
• Do not store in environments with corrosive gases (SOx, Cl, etc.).
• Use thermistors as soon as possible after opening factory seals.
• For optimal soldering, use within 12 months (SMDs) or 24 months (leaded) after shipment.
• Prevent components from being dropped; handle with gloves to avoid contamination and damage.

Soldering Recommendations

• Use resin-type or non-activated flux.
• Ensure proper preheating to prevent ceramic cracks.
• Avoid rapid cooling by dipping in solvent.
• Completely remove flux residue after soldering.

Important Notices

• Read and follow all warnings and cautions provided with electronic components.
• Product specifications are subject to change without prior notice.
• Customers are responsible for evaluating product suitability for their specific applications.
• ATI warrants products to perform according to specifications for one year from the date of sale, excluding damage from excessive abuse.
• ATI reserves the right to make changes or discontinue products without notice.
• Products are sold subject to terms and conditions of sale.
• ATI assumes no liability for applications assistance or customer product design.
• ATI does not grant any license for intellectual property rights.
• Publication of third-party information does not constitute endorsement.
• ATI retains ownership of all rights for its technologies, designs, and improvements.
• In applications requiring high operational safety, implement suitable design measures to prevent injury or damage in case of component malfunction.