PTC thermistors as
limit temperature sensors
SMD, EIA case sizes 0402, 0603, 0805,
standard series
Series/Type: B59404, B59601, B59602,
B59603, B59701
Date: August 2019
TDK Electronics AG 2019. Reproduction, publication and dissemination of this publication, enclosures hereto
and the information contained therein without TDK Electronics' prior express consent is prohibited.Sensors
Limit temperature sensors, EIA case sizes 0402, 0603, 0805 Standard series
Applications
DC/DC converters
Home appliances
Dimmers
Electronic ballasts
Over-temperature protection of power components
Secondary protection of battery packs
SMPS
Notebooks
Features
Fast and reliable response
Suitable for reflow soldering only
Compliant to RoHS directive 2002/95/EC
UL approval to UL1434 for B59404A* and B59601A* (file number E69802)
Lead-free terminations (tinned), except case size 0402
Options
Other T or resistance values on request
sense
Delivery mode
Blister tape (EIA case size 0805) or cardboard tape (EIA case sizes 0402 and 0603),
180-mm reel with 8-mm tape, taping to IEC 60286-3
Packing unit: 4.000 pcs. for EIA case sizes 0603 and 0805, 10.000 pcs. for EIA case size
0402
General technical data
Max. operating voltage V 32 V DC
max
Minimum operating temperature (V V ) T 40 C
max op,min
Maximum operating temperature (V V ) T 125 C or T +25 C C
max op,max sense,1
1)
whichever is higher
1) T = 140 C for B59404A0130A062
op,max
Please read Cautions and warnings and Page 2 of 19
Important notes at the end of this document.