Surface Mount NTC Thermistor, EIA 0805 package
The QT0805 NTC Surface Mount Thermistors are the ideal solution for temperature sensing functions found in temperature compensation networks. The patented design features Leach Guard ™ terminations which are able to withstand many of today’s modern automated assembly and soldering processes. Standard EIA sizing allows for tape and reel packaging designed for automated placement equipment. Contact Sequoia Technology for information regarding our SMD engineering kit

• Thermal Time Constant: 8 seconds max in still air *
• Dissipation Constant: 2 mW/°C min in still air
• *Power Rating: .125 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 50 ohm to 10 Meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting
• RoHS compliant version available

Surface Mount NTC Thermistor, EIA 0603 package
The 0603 NTC Surface Mount Thermistors are the ideal solution where temperature sensing within a constrained area is needed. The miniature SMD 0603 footprint allows for placement in restrictive areas such as underneath crystal components in oscillator circuits. Manufactured with our patented Leach Guard™ termination process, they are designed to withstand most of today’s automated soldering processes. Standard 0603 packaging allows for tape and reel packaging.

• Thermal Time Constant: 5 seconds max in still air
• *Dissipation Constant: 2 mW/°C min in still air
• *Power Rating: .0625 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 20K ohm and 100K ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting
• RoHS Compliant Version Available

Surface Mount NTC Thermistor, EIA 1206 package
The QT1206 NTC Surface Mount Thermistors are the ideal solution for temperature sensing functions found in temperature compensation networks. The patented design features Leach Guard terminations which are able to withstand many of today's modern automated assembly and soldering processes. Standard EIA sizing allows for tape and reel packaging designed for automated placement equipment. Contact Sequoia Technology for information regarding our SMD engineering kit.

• *Thermal Time Constant: 8 seconds max in still air
• *Dissipation Constant: 2 mW/°C min in still air
• Power Rating: .25 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 50 ohm to 10 Meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting

Military Grade NTC Chip Thermistor, MIL-PRF-32192/3
The High-Rel M32192/3 Negative Temperature Coefficient chip thermistor is designed for wire bonding applications found in hybrid circuitry. The “Top-Bottom” electrodes are available in silver or gold and accomodate most industry standard attachment methods.

DSCC (Defense Supply Center, Columbus) issued specification MIL-PRF-32192 in the Summer of 2005 which dictates the performance and inspection requirements for these devices which includes a test for wire bonding integrity. Several base resistance and curve combinations are available to suite a wide range of temperature compensation applications.

• Thermal Time Constant: 10 seconds max in still air
• *Dissipation Constant: 1.25 mW/C min in still air
• *Power Rating: .0625 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 15 ohm to 20 meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting

Military Grade NTC Surface Mount Thermistor, MIL-PRF-32192/4
Screened, high-rel surface mount NTC thermistors are provided in an EIA 0805 package. Resistance values are specified at 25°C with resistances at other temperatures calculated using the appropriate resistance vs. temperature tables. The data provided on the M32192/4 part is defined in the DSCC (Defense Supply Center, Columbus) drawing MIL-PRF-32192/4 The complete MIL-PRF-32192 specification can be obtained by contacting the DSCC. Please contact Sequoia Technology for any information required.

• Thermal Time Constant: 8 seconds max in still air
• *Dissipation Constant: 2 mW/°C min in still air
• *Power Rating: .125 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 470 ohm to 10 meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting

NTC Hybrid Microelectronics Chip Thermistors
The QTC11 NTC chip thermistors are designed for die attach and wire-bonding requirements found in today’s hybrid microelectronics circuits. The QTC11 series is offered in a gold or silver termination finish for high-reliability conductive epoxy/wire bonded attachment.

Applications may include localized temperature sensing, temperature compensation, protection, and frequency control for sensitive communications systems and infrared sensing equipment.

The QTC11 Series is available for applications requiring narrow band, temperature point matching control and is also available in a military grade DSCC (Defense Supply Center Columbus) version. Contact Sequoia Technology for details.

• Thermal Time Constant: 10 seconds max in still air
• *Dissipation Constant: .625 mW/°C min in still air
• *Power Rating: .0625 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 100 ohm to 20 meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting
• RoHS Compliant

Military Grade NTC Surface Mount Thermistor, MIL-PRF-32192/5
Screened, high-rel surface mount NTC thermistors are provided in the EIA 1206 package. Resistance values are specified at 25°C with resistances at other temperatures calculated using the appropriate resistance vs. temperature tables. The data provided on the M32192/5 part is defined in the DSCC (Defense Supply Center, Columbus) drawing MIL-PRF-32192/5. The complete MIL-PRF-32192 specification can be obtained by contacting the DSCC. Please contact Sequoia Technology for any information required.

• Thermal Time Constant: 8 seconds max in still air
• *Dissipation Constant: 2 mW/°C min in still air
• *Power Rating: .25 W at 25°C, derate to 0 W at 125°C
• Resistance @25°C: 470 ohm to 10 meg ohm
• Operating temperature range: -55°C to 125°C
• Storage temperature range: -65°C to 150°C
• *Thermal Time Constant and Dissipation Constant may vary depending on mounting