58 05/02
Applications
■Temperature measurement and
compensation in
–hybrid circuits
–data systems
–telecom systems
–automotive electronics
Features
■Silver palladium termination (AgPd)
■Cost-effective
■Suitable for wave and reflow soldering
Options
Alternative resistance ratings and resistance tolerance
< 5% available on request
Delivery mode
Blister tape, 180-mm reel, PU: 4000 pcs
+: J for ∆RN/RN = ± 5 %
K for ∆RN/RN = ± 10 %
M for ∆RN/RN = ± 20 %
Climatic category (IEC 60068-1)
Max. power at 25 °C (on PCB) P25
Resistance tolerance ∆RN/RN
Rated temperature TN
B value tolerance ∆B/B
Dissipation factor (on PCB) δth1)
Thermal cooling time constant (on PCB) τc1)
Heat capacity Cth1)
55/125/21
210
± 5 %, ± 10 %, ± 20 %
25
± 3 %
approx. 3,5
approx. 10
approx. 35
mW
°C
mW/K
s
mJ/K
R25
Ω
No. of R/T
characteristic
B25/50
K
B25/85
K
B25/100
K
Ordering code
220 3207 3060 3090 3100 B57620C0221+062
330 3204 3190 3250 3250 B57620C0331+062
470 3205 3270 3290 3300 B57620C0471+062
680 3206 3420 3440 3450 B57620C0681+062
1 k 3206 3420 3440 3450 B57620C0102+062
2,2 k 1304 3250 3280 3300 B57620C0222+062
4,7 k 1010 3470 3510 3530 B57620C0472+962
Dimensions in mm
Approx. weight 13 mg
Termination
0,5±0,25
1,25±0,15
2,0±0,2
TNT0397-7-E
1,3 max.
1) Depends on mounting situation
B57620Temperature Measurement
C 620SMD NTC Thermistors with Silver Palladium Termination, Size 0805
59 05/02
+: J for ∆RN/RN = ± 5 %
K for ∆RN/RN = ± 10 %
M for ∆RN/RN = ± 20 %
R25
Ω
No. of R/T
characteristic
B25/50
K
B25/85
K
B25/100
K
Ordering code
10 k 1011 3660 3730 3730 B57620C0103+062
22 k 2003 3930 3960 3980 B57620C0223+062
47 k 2101 4030 4080 4100 B57620C0473+062
100 k 2903 4120 4190 4200 B57620C0104+162
220 k 2904 4230 4280 4300 B57620C0224+062
Reliability data
SMD NTC thermistors are tested in accordance with IEC 60068. The parts are mounted on a
standardized PCB in accordance with IEC 60539-1.
Test Standard Test conditions ∆R25/R25
(typical)
Remarks
Storage in
dry heat
IEC
60068-2-2
JIS C 0021
Storage at upper
category temperature
T: (125 ± 2) °C
t: 1000 h
< 3 %/
< 6 %1)
Storage in damp
heat, steady state
IEC
60068-2-3
JIS C 0022
Temperature of air: (40 ± 2) °C
Relative humidity of air:
(93 +2/–3) %
Duration: 21 days
< 3 % No visible
damage
Rapid temperature
cycling
IEC
60068-2-14
JIS C 0025
Lower test temperature: – 55 °C
Upper test temperature: 125 °C
Number of cycles: 10
< 3 %
Endurance Pmax: 210 mW
T: (65 ± 2) °C
t: 1000 h
< 5 %
Solderability IEC
60068-2-58
JIS C 0054
Solderability:
(215 ± 3) °C / (3 ± 0,3) s
(235 ± 5) °C / (2 ± 0,2) s
Resistance to soldering heat:
(260 ± 5) °C / (10 ± 1) s
95 % of
terminations
wetted
Resistance drift
after soldering
Reflow soldering profile
Wave soldering profile
< 5 %
1) The higher value applies to 220 Ω–1 kΩ types.
B57620Temperature Measurement
C 620SMD NTC Thermistors with Silver Palladium Termination, Size 0805
