PTC thermistors as
inrush current limiters
PTC thermistors in housing
Series/Type:
Date:
B59***J0130A020
March 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.
Inrush current limiters
PTC thermistors in housing
Applications
Inrush current limiter for smoothing and
DC link capacitors
To replace high-power fixed resistors for
capacitor charging
Features
Self-protecting in case of malfunction of
short-circuit relay or internal short circuit of
capacitor
Encased thermistor disk with clamp contacts
for high reliability
For high pulse currents and a high number of
operating cycles
Inrush current limiters are not damaged
when directly connected to V
max
even without
additional current limitation
Flame-retardant plastic case
Case material UL-listed
Sn-plated lead-free solder pins
Manufacturer's logo, type designation and
date code YYWW stamped on in white
(YYWWD for tpye J103)
Types J213, J215, J217 and J219
qualification based on AEC-Q200, Rev. D
UL approval for all types to UL 1434
(file number E69802)
VDE approval for J105, J107 and J109
(licence number 40040539)
IECQ certificate for J105, J107 and J109
(file number 101-QA-13)
RoHS-compatible
Delivery mode
Packed in carton box
General technical data
Operating cycles at V
max
Switching cycles at V
max
Operating temperature range
Operating temperature range
Dimensional drawings
Type J213, J215, J217 and J219
Type J105, J107 and J109
Dimensions in mm
(charging of capacitor)
(failure mode)
(V = 0)
(V = V
max
)
N
c
N
f
T
op
T
op
> 100000
> 100
40/+125
20/+85
cycles
cycles
°C
°C
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 13
Inrush current limiters
PTC thermistors in housing
Electrical specifications and ordering codes
T
ref
C
th
(typ.)
(typical)
V AC V DC
Ω
%
°C
J/K
PBT plastic case, preferred types for new designs
J213 280
400
33 25
130
1.1
J215 280
400
22 25
130
2.3
J217 440
620
56 25
130
2.3
J219 560
800
100 25
130
2.3
Phenolic resin plastic case
J105 280
400
22 25
130
2.3
J107 440
620
56 25
130
2.3
J109 560
800
100 25
130
2.3
Type
Circuit diagrams
Three phases circuit
V
max
V
link,max
R
R
∆R
R
τ
th
Circuit
Ordering code
(typical) diagram
s
140
150
150
150
150
150
150
2
2
1, 2, 3
1, 2, 3
2
1, 2, 3
1, 2, 3
B59213J0130A020
B59215J0130A020
B59217J0130A020
B59219J0130A020
B59105J0130A020
B59107J0130A020
B59109J0130A020
Single phase circuit
DC circuit
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 13
Inrush current limiters
PTC thermistors in housing
Calculation of the number of required PTC elements
Number of required PTC elements (connected in parallel) as function of capacitance and charging
voltage of smoothing or DC link capacitor:
K
K factor
K = 1 for DC source
K = 0.96 for 3-phase bridge rectifier
K = 0.76 for single phase bridge rectifier
Number of required PTC thermistors connected in parallel
Capacitance of smoothing or DC link capacitor in F
Charging voltage of capacitor in V
Heat capacity in J/K
Reference temperature of PTC in
°C
Expected maximum ambient temperature in
°C
N
C
V
C
th
T
ref
T
A,max
In case of large N values the resulting resistance of the parallel PTC network might be too low for
effective limitation of the charging current. In this case a combination of series and parallel
connected PTC thermistors can be used.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 13
Inrush current limiters
PTC thermistors in housing
Reliability data
Test
Electrical endurance,
cycling
Electrical endurance,
constant
Damp heat
Standard
Test conditions
Room temperature, V
link,max
applied energy < C
th
(T
ref
T
A
)
Number of cycles: 100 000
Storage at V
max
and T
op,max
(@ V
max
)
Test duration: 1000 h
Temperature of air: 40
°C
Relative humidity of air: 93%
Duration: 56 days
Test according to IEC 60068-2-78
T
1
= T
op,min
(0 V), T
2
= T
op,max
(0 V)
Number of cycles: 5
Test duration: 30 min
Test according to IEC 60068-2-14, test Na
Frequency range: 10 to 55 Hz
Displacement amplitude: 0.75 mm
Test duration: 3
×
2 h
Test according to IEC 60068-2-6, test Fc
Dry heat: T = T
op,max
(0 V)
Test duration: 16 h
Damp heat first cycle
Cold: T = T
op,min
(0 V)
Test duration: 2 h
Damp heat 5 cycles
Tests performed according to
IEC 60068-2-30
∆R
25
/R
25
< 25%
IEC 60738-1
IEC 60738-1
< 25%
< 10%
Rapid change
of temperature
IEC 60738-1
< 10%
Vibration
IEC 60738-1
< 5%
Climatic sequence
IEC 60738-1
< 10%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 13
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