1) Depends on mounting situation
Applications
Temperature measurement and
compensation
Features
Front surfaces silver-plated
For clamp contacting
UL approval (E69802)
Options
Alternative resistance ratings, rated
temperatures, resistance tolerances and disk
geometries available on request.
Delivery mode
Bulk
Dimensional drawing
R
100
(Ω) ∅d (mm) th (mm)
39.6 4.6 ±0.3 1.4 ±0.2
77 5.3 ±0.3 1.3 ±0.2
92 4.6 ±0.3 1.7 ±0.2
Approx. weight 150 mg
General technical data
Climatic category (IEC 60068-1) 55/155/21
Max. power (at 25 °C) P
25
180 mW
Resistance tolerance ∆R
R
/R
R
±5 %
Rated temperature T
R
100 °C
Dissipation factor (in air) δ
th
1)
approx. 3 mW/K
Thermal cooling time constant (in air) τ
c
1)
approx. 30 s
Heat capacity C
th
1)
approx. 90 mJ/K
Electrical specification and ordering codes
R
100
Ω
R
25
Ω
No. of R/T
characteristic
B
25/100
K
Ordering code
39.6 560.2 1009 3930 ±1.5% B57820M0561A005
77 843.2 1006 3550 ±1.5% B57820M0841A004
92 1014 1008 3560 ±1.5% B57820M0102A003
Temperature measurement and compensation B57820M
Leadless NTCs M820
Page 2 of 20Please read Cautions and warnings and
Important notes at the end of this document.