SM503J1KRA US Sensor, SM503J1KRA Datasheet - Page 21

• 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

Surface Mount
End-Banded Chip Thermistors
U.S. Sensor’s surface mount end-banded thermistor elements are
designed for use on hybrid substrates, integrated circuits or printed
circuit boards. They have a solder coated metallization which is suitable
for various contact techniques including wire bond, epoxy or solder.
Since they are manufactured using the most advanced equipment and
technology available, their dimensional parameters are extremely uniform
making the devices especially suitable for use with automatic handling
and placement equipment.
Features
• Surface mountable
• Small size
• Low cost
• Rated to 150˚C operating temperature
Options
• Non-standard resistance values and tolerances
• Special electrode materials
• Special dimensions
• Tape and reel packaging
• Solder coated metallization
Specifications
• Thermal time constant: 10 seconds max.
• Dissipation constant: 1 mW/˚C
0805 and 1206 Style
Part Number
0805 Series
KR102B1K
KR252B1K
KR502F1K
KR103F1K
KR203F1K
KR303J1K
KR503J1K
KR753J1K
KR104J1K
Surface Mount End-Banded Chip Thermistors
*Resistance tolerances of ±5%, 20% are available upon request
LR102B1K
LR252B1K
LR502F1K
LR103F1K
LR203F1K
LR303J1K
LR503J1K
LR753J1K
LR104J1K
Part Number
1206 Series
Resistance
Ω @ 25˚C
100000
10000
20000
30000
50000
75000
1000
2500
5000
*Resistance
Tol. ± %
20
1832 West Collins Avenue, Orange, CA 92867 • Tel. [phone] • Fax [phone] • www.ussensor.com
10
10
10
10
10
10
10
10
10
(See Pg. 44-45)
THICKNESS:
0.055" MAX
0.050"
R-T Curve
MAX
B
B
F
F
F
J
J
J
J
“LR” SERIES
“KR” SERIES
0.008" MIN
± 0.010"
± 0.008"
Beta (˚K)
0.079"
2930
2930
3420
3420
3420
3890
3890
3890
3890
0.120"
0.008"
0-50˚C
MIN
SOLDER COATED “LB-2000” LEACH
RESISTANT TERMINATIONS (TYP)
SOLDER COATED "LB-2000" LEACH
RESISTANT TERMINATIONS (TYP)
0.049" ± 0.008"
0.060" ±0.010"