B57220 Datasheet, PDF (1/3 Pages) EPCOS – B57220 Temperature Measurement Leadless Disks

Temperature Measurement
Leadless Disks
Applications
I Automotive electronics, e.g.
– measurement of cooling water
and oil temperature
Features
I Thermistor disk with lapped, coplanar
front surfaces
I Front surfaces silver-plated
I For clamp contacting
I UL approved type (up to 125 °C operating temperature)
Options
Alternative resistance ratings,
rated temperatures and resistance tolerances
available on request
Delivery mode
Bulk
B57220
K 220
Termination
D = 2,9 ± 0,3 mm
L = 1,3 ± 0,3 mm
Approx. weight 50 mg
Climatic category (IEC 60068-1)
Max. power at 25 °C
Resistance tolerance
Rated temperature
B value tolerance
Dissipation factor (in air)
Thermal cooling time constant (in air)
Heat capacity
P₂₅
∆R_N/R_N
T_N
∆B/B
δ_th1)
τ_c1)
C_th1)
55/250/21
180
±5%
20
± 1,5 %
approx. 2,5
approx. 12
approx. 30
mW
°C
mW/K
s
mJ/K
R₂₀
Ω
2,5 k
R₂₅
Ω
2056,9
No. of R/T
characteristic
1008
B_25/100
K
3560
Ordering code
B57220K0212A003
1) Depends on mounting situation
66 05/02