PTC thermistors as
limit temperature sensors
SMD, EIA case sizes 0402, 0603, 0805,
standard series
Series/Type: B59404, B59601, B59602,
B59603, B59701
Date: July 2016
© EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
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
sense
or resistance values on request
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
max
32 V DC
Minimum operating temperature (V V
max
) T
op,min
40 °C
Maximum operating temperature (V V
max
) T
op,max
125 °C or T
sense,1
+25 °C
whichever is higher
1)
°C
1) T
op,max
= 140 °C for B59404A0130A062
Sensors
Limit temperature sensors, EIA case sizes 0402, 0603, 0805 Standard series
Page 2 of 19Please read Cautions and warnings and
Important notes at the end of this document.
Electrical specifications and ordering codes
EIA case sizes 0402 and 0603
R
R
(V V
max
)
R
R
%
T
sense,1
(@ 4.7 k)
°C
T
sense,1
(@ 4.7 M)
°C
R
(T
sense,1
+10 °C)
k
Ordering code
EIA case size 0402, high ohmic types
10000 ±50 - 130 ±5 - B59404A0130A062
EIA case size 0603, standard types
470 ±50 75 ±5 - - B59601A0075A062
470 ±50 85 ±5 - - B59601A0085A062
470 ±50 95 ±5 - - B59601A0095A062
470 ±50 105 ±5 - - B59601A0105A062
470 ±50 115 ±5 - - B59601A0115A062
470 ±50 125 ±5 - - B59601A0125A062
470 ±50 135 ±5 - - B59601A0135A062
EIA case size 0603, tight temperature tolerance types
470 ±50 85 ±3 - 15 B59601A0085B062
470 ±50 95 ±3 - 40 B59601A0095B062
470 ±50 105 ±3 - 40 B59601A0105B062
470 ±50 115 ±3 - 40 B59601A0115B062
470 ±50 125 ±3 - 40 B59601A0125B062
Note:
In order to limit self heating effects the electrical power during measurement should be below
2 mW for EIA case size 0402 and below 4 mW for EIA case size 0603.
Sensors
Limit temperature sensors, EIA case sizes 0402, 0603, 0805 Standard series
Page 3 of 19Please read Cautions and warnings and
Important notes at the end of this document.

B59601A0125B062

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
PTC Thermistors PTC Thermistor A 601B 125A 62
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union