SM503J1KRA US Sensor, SM503J1KRA Datasheet - Page 11

• Manufacturer Part Number: SM503J1KRA
• Description: THERMISTOR NTC 50K OHM 10% SMD
• Manufacturer: US Sensor
• Series: SMr

Specifications of SM503J1KRA

• Resistance In Ohms @ 25°c: 50K
• Resistance Tolerance: ±10%
• B0/50: 3890K
• Mounting Type: Surface Mount
• Package / Case: MELF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• B Value Tolerance: -
• B25/50: -
• B25/75: -
• B25/85: -
• B25/100: -
• Operating Temperature: -
• Power - Max: -
• Lead Length: -
• Other names: 615-1035; SM503J1K

Ultra
Precision Interchangeable Thermistors
U.S. Sensor’s ultra precision interchangeable thermistors are highly
accurate, stable devices designed specifically for temperature sensing
and control applications. They are particularly suited for uses where
their precision interchangeability eliminates the necessity for costly
individual circuit calibration.
Features
• High accuracy
• Fast thermal response
• Long life
• R/T Curve-matched
Options
• Special lead materials and lengths
• Special encapsulants or probe housings
• Non-standard resistance values and tolerances
Specifications
• Thermal time constant: 1 second max. in a well
• Dissipation constant: 1 mW/˚C
• Maximum power rating: 30 mW at 25˚C derated to 1 mW at 125˚C
• Interchangeability tolerance of ±0.05˚C from 0-50˚C
• Operating temperature: -55˚C to +80˚C
• Storage and operation temperatures for best long term stability: -55˚
0.05ºC Accuracy
(±0.05˚C 0-50˚C)
stirred oil bath, 10 seconds max. in still air
to +50˚C
Ultra Precision Interchangeable Thermistors
Part Number
PR222J2
PR302J2
PR502J2
PR103J2
PR203J2
PR303J2
PR503J2
Resistance
Ω @ 25˚C
10000
20000
30000
50000
2252
3000
5000
• Epoxy encapsulated
• High stability
• Small size
(See Pg. 40-43)
R-T Curve
J
J
J
J
J
J
J
Beta (˚K)
0-50˚C
3890
3890
3890
3890
3890
3890
3890
10
1832 West Collins Avenue, Orange, CA 92867 • Tel. [phone] • Fax [phone] • www.ussensor.com
30 AWG ( 0.010" )
TINNED ALLOY WIRE
1.5"
MIN
EPOXY
COATING
0.095"
MAX