PTC thermistors for
overcurrent protection
Leaded disks, coated, 230 V, lead-free series
Series/Type: B598**
Date: February 2018
EPCOS AG 2018. 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.Overcurrent protection
Leaded disks, coated, 230 V, lead-free series C850 ... C883
Applications Dimensional drawing
Overcurrent protection
Short circuit protection
Features
No intentional use of lead compounds
Lead concentration in the homogenous
materials lower than 0.1%
Tight resistance tolerance
Marking: Type, manufacturer's logo,
reference temperature in C and date code
YYWW
UL approval to UL 1434 (file number
E69802)
Dimensions (mm)
VDE approval for selected types
(licence number 104843)
Type w h l d
max max min
IECQ certificate for selected types
C850 13.5 17.0 35 0.6
(file number 101-QA-2)
C860 11.0 14.5 35 0.6
RoHS-compatible
C873 9.0 12.5 35 0.6
C875 9.0 12.5 35 0.6
Options
C880 6.5 10.0 35 0.6
Thermistors with diameter w 11.0 mm are
C883 6.5 10.0 35 0.6
also available on tape (to IEC 60286-2)
Delivery mode
Cardboard strips (standard)
General technical data
Max. operating voltage (T = 60 C) V 265 V DC or V AC
A max
Rated voltage V 230 V DC or V AC
R
Switching cycles N 100
Tolerance of R (T = 120 C) R 20 %
R ref R
Reference temperature (typ.) T 120 C
ref
Operating temperature range (V = 0) T 40/+125 C
op
Operating temperature range (V = V ) T 0/+60 C
max op
Electrical specifications and ordering codes
I I I I T R R
Type R S Smax r ref R min Approvals Ordering code
(V = V ) (typ.) (typ.)
max
(V = V )
max
mA mA A mA C
IECQ
C850 220 330 2.2 13 120 10 6 X B59850C0120A570
C860 170 260 1.5 10 120 15 9 X B59860C0120A570
Please read Cautions and warnings and Page 2 of 11
Important notes at the end of this document.