PTC thermistors as heating elements
Metallized rectangular disks, 230 V
Series/Type:
B59102
Date:
August 2006
EPCOS AG 2006. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Applications
Home appliances
hair curlers
fan heaters
coffee machines
glue guns
Features
Aluminum metallization
Suitable for clamp contacting
For clamp contacting, not suitable for soldering
Self-regulating
UL approval to UL 1434 (file number E69802), except T
ref
= 240
C and 290
C
RoHS-compatible
Options
Other dimensions and ratings on request
Delivery mode
Packed in styrofoam trays
Dimensional drawing
Dimensions in mm
General technical data
Max. operating voltage
V
max
265
VAC
Rated voltage
V
R
230
VAC
Operating temperature range
(V = 0)
T
op
40/+200
C
Operating temperature range
(V = V
R
; T
ref
60
C) T
op
40/+60
C
Operating temperature range
(V = V
R
; T
ref
> 60
C) T
op
40/+100
C
Tolerance of R
R
R
R
50
%
Curvature
< 0.05
mm
Heating elements
B59102
Metallized rectangular disks, 230 V
R102
Page 2 of 7
Please read Important notes and
Cautions and warnings at the end of this document.
1) Measured between points
2) T (R
PTC
= R
min
) < 25
C
Electrical specifications and ordering codes
T
ref
C
V
BD
V
R
min
(V = V
R
)
T
surf
1)
(V = V
R
)
C
R
R
(V
meas
1.5 V)
Ordering code
50
400
225
2)
100
700
B59102R0050A010
70
400
130
115
700
B59102R0070A010
90
400
115
130
700
B59102R0090A010
110
400
100
145
700
B59102R0110A010
130
400
105
160
700
B59102R0130A010
150
400
90
180
700
B59102R0150A010
180
400
66
205
700
B59102R0180A010
220
400
80
240
1000
B59102R0220A010
240
400
75
255
1000
B59102R0240A010
270
340
85
280
1300
B59102R0270A010
290
320
78
295
1300
B59102R0290A010
Heating elements
B59102
Metallized rectangular disks, 230 V
R102
Page 3 of 7
Please read Important notes and
Cautions and warnings at the end of this document.
Characteristics (typical)
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
Heating elements
B59102
Metallized rectangular disks, 230 V
R102
Page 4 of 7
Please read Important notes and
Cautions and warnings at the end of this document.
Cautions and warnings
General
EPCOS thermistors are designed for specific applications and should not be used for purposes
not identified in our specifications, application notes and data books unless otherwise agreed
with EPCOS during the design-in-phase.
Ensure suitability of thermistor through reliability testing during the design-in phase. The
thermistors should be evaluated taking into consideration worst-case conditions.
Storage
Store thermistors only in original packaging. Do not open the package before storage.
Storage conditions in original packaging: storage temperature
25
C ... +45
C, relative
humidity
75% annual mean, maximum 95%, dew precipitation is inadmissible.
Avoid contamination of thermistors surface during storage, handling and processing.
Avoid storage of thermistor in harmful environment with effect on function on long-term
operation (examples given under operation precautions).
Use thermistor within 6 months after delivery.
Handling
PTCs must not be dropped. Chip-offs must not be caused during handling of PTCs.
Components must not be touched with bare hands. Gloves are recommended.
Avoid contamination of thermistor surface during handling.
Soldering (where applicable)
Use rosin-type flux or non-activated flux.
Insufficient preheating may cause ceramic cracks.
Rapid cooling by dipping in solvent is not recommended.
Complete removal of flux is recommended.
Standard PTC heaters are not suitable for soldering.
Mounting
Electrode must not be scratched before/during/after the mounting process.
Contacts and housing used for assembly with thermistor have to be clean before mounting.
Especially grease or oil must be removed.
When PTC thermistors are encapsulated with sealing material, the precautions given in chapter
"Mounting instructions", "Sealing and potting" must be observed.
When the thermistor is mounted, there must not be any foreign body between the electrode of
the thermistor and the clamping contact.
The minimum force of the clamping contacts pressing against the PTC must be 10 N.
During operation, the thermistor's surface temperature can be very high. Ensure that adjacent
components are placed at a sufficient distance from the thermistor to allow for proper cooling at
the thermistors.
Ensure that adjacent materials are designed for operation at temperatures comparable to the
surface temperature of thermistor. Be sure that surrounding parts and materials can withstand
this temperature.
Avoid contamination of thermistor surface during processing.
Heating elements
B59102
Metallized rectangular disks, 230 V
R102
Page 5 of 7
Please read Important notes and
Cautions and warnings at the end of this document.
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