PTCEL
www.vishay.com
Vishay BCcomponents
PTC Thermistors, Inrush Current Limiter and Energy Load-Dump
FEATURES
• High energy absorption levels up to 240 J
• High number of inrush-power cycles:
> 100 000 cycles
• Highly
resistant
against
non-switching
peak-powers of up to 25 kW
• Can handle high direct voltage up to 1000 V
• Self protecting in case of overload with no risk of
over-heating
• AEC-Q200 qualified
• Rugged construction
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
ADDITIONAL RESOURCES
3D 3D
3D Models
Design Tools
Models
APPLICATIONS
Maximum inrush current
40
A
Maximum AC voltage (1)
350 to 700
VRMS
Inrush current limiting and load-dump resistor in:
• Smoothing and DC-link capacitor banks
• Power inverters
• Discharge - charge circuits
PTCEL thermistors of similar resistance and size may be
used in series and parallel combinations to obtain higher
energy absorption levels. PTCEL thermistors may not be
used in series connections to obtain higher voltage levels.
Maximum DC voltage (1)
QUICK REFERENCE DATA
PARAMETER
VALUE
UNIT
Resistance at 25 °C (R25) (1)
60 to 1000
Switching temperature
130 to 140
°C
500 to 1000
VDC
DESCRIPTION
Operating temperature range
-40 to 105
°C
Storage temperature range
-40 to 165
°C
Dissipation factor
14 to 19.5
mW/K
Thermal time constant
(still air cooling)
105 to 120
s
Weight
3.5 to 5.7
g
These directly heated ceramic-based doped barium titanate
thermistors have a positive temperature coefficient and are
primarily intended for inrush current limiting and overload
protection. They consist of a ceramic pellet soldered
between two tinned CCS wires and coated with a UL 94 V-0
compliant high temperature silicone lacquer. The body is
marked with the logo, cold resistance value, EL on one side
and date code on the opposite side.
Note
(1) Other resistance values and maximum operating voltages
available on request.
Matched resistance values available on request
PACKAGING
PTC thermistors are available in 100 pieces (PTCEL13) or
50 pieces (PTCEL17) layered bulk packed or tape on reel
option 500 pieces on request.
ELECTRICAL DATA AND ORDERING INFORMATION
PART NUMBER
R25
()
R25 TOL.
(%)
VMAX.
(VRMS)
VLINK MAX.
(VDC)
RMIN.
< 1.5 VDC
()
IHOLD
AT 25°C
(mA)
Cth
(J/K)
EMAX.
1 CYCLE
AT 25°C
(J)
th
(s)
DISSIPATION
FACTOR
(mW/K)
WEIGHT
(g)
PTCEL13R600LBE
60
30
350
500
32
120
1.45
150
105
14.0
3.5
PTCEL13R121MBE
120
30
440
625
64
85
1.45
150
105
14.0
3.5
PTCEL13R251NBE
250
30
480
680
130
60
1.45
150
105
14.0
3.5
PTCEL13R501RBE
500
30
560
800
260
42
1.45
150
105
14.0
3.5
PTCEL13R102SBE
1000
30
600
850
520
30
1.45
150
105
14.0
3.5
PTCEL17R600MBE
60
30
440
625
32
140
2.3
240
120
19.5
5.7
PTCEL17R121NBE
120
30
460
650
64
100
2.3
240
120
19.5
5.7
PTCEL17R251SBE
250
30
600
850
130
70
2.3
240
120
19.5
5.7
PTCEL17R501TBE
500
30
700
1000
260
50
2.3
230
120
19.5
5.7
Revision: 17-Oct-2019
Document Number: 29165
1
For technical questions, contact: nlr@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PTCEL
www.vishay.com
Vishay BCcomponents
OUTLINE AND DIMENSIONS
D
COMPONENT DIMENSIONS in millimeters
T
PTCEL13
BC
120R
EL
H1
H2
D
13.5 max.
17 max.
H1
17 max.
21 max.
H2
3±1
3±1
d
0.6 ± 0.06
0.8 ± 0.08
L
20 min.
20 min.
5 ± 0.8
5 ± 0.8
7.0 max.
7.5 max.
F
L
(1)
T
d
F
PTCEL17
Note
(1) F pitch = 7.5 mm available on request
REQUIRED NUMBER OF PTC THERMISTORS TO LIMIT CURRENT AND ABSORB ENERGY
By using several PTC’s in a series / parallel network, the maximum current limitation and absorbed energy levels can be further
optimized. For homogeneous current and energy distribution it is recommended to combine only PTCEL of the same size and
matched resistance value. Energy absorption per PTC in a network depends on current distribution in the network and as such
on the individual PTC resistance value. PTCEL thermistors might be used in a series connection to further lower the inrush
current, but not to increase the maximum allowed voltage levels. Following formula may be used to calculate the minimum
number of PTCEL thermistors of the same size and matched resistance value that are required in a DC link or other capacitor
bank application to properly charge or discharge a given amount of energy without follow current:
KxCxV
2
N --------------------------------------------------------------2 x C th x T sw - T amb
Notes
• N is the number of PTCEL required in the network
• C is the total capacitor value to charge or discharge in F
• V is the maximum DC voltage on the capacitor C
• Cth is the thermal capacity of one PTC in [J/K] (see table)
• Tsw is the minimum switching temperature of the PTCEL (130 °C)
• Tamb is the maximum ambient temperature at which the PTC needs to operate
• K is the factor that determines the charging operation mode
K = 1 for DC charging or discharging
K = 0.96 for 3-phase rectified charging
K = 0.76 for single phase rectified charging
RESISTANCE VS. TEMPERATURE
Vm ≤ 1.5 VDC
106
10000
PTCEL17R501TBE
PTCEL17R251SBE
PTCEL17R121NBE
PTCEL17R600MBE
107
106
1000
1st line
2nd line
105
104
100
103
102
1000
105
1st line
2nd line
107
2nd line
Resistance (Ω)
Vm ≤ 1.5 VDC
108
10000
PTCEL13R102SBE
PTCEL13R501RBE
PTCEL13R251NBE
PTCEL13R121MBE
PTCEL13R600LBE
2nd line
Resistance (Ω)
108
104
100
103
102
101
10
-50
0
50
100
Temperature (°C)
Revision: 17-Oct-2019
150
200
101
10
-50
0
50
100
150
200
Temperature (°C)
Document Number: 29165
2
For technical questions, contact: nlr@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PTCEL
www.vishay.com
Vishay BCcomponents
MINIMUM PTC RESISTANCE UNDER PULSED
VOLTAGE
VMAX. DERATING VS. TAMB
Axis Title
Axis Title
0.80
10000
10000
120
0.75
0.70
100
1000
0.50
0.45
0.40
1000
80
2nd line
Vmax. (%)
0.55
100
1st line
2nd line
0.60
1st line
2nd line
2nd line
Rmin. (Vp) / R25
0.65
60
100
40
0.35
0.30
Voltage duration ≤ 1000 h
Voltage duration ≤ 100 h
Voltage duration ≤ 10 h
20
0.25
10
1000
0.20
0
200
400
600
800
10
0
-50 -25
0
VPTV-pulsed
25
50
75 100 125 150 175 200
Tamb (°C)
RESIDUAL CURRENT VS. VOLTAGE
Typical at 25 °C Still Air
Typical at 25 °C Still Air
10000
10
1000
2nd line
I (mA)
2nd line
I (mA)
1st line
2nd line
1000
1st line
2nd line
10
10000
100
100
PTCEL13R600LBE
PTCEL13R121MBE
PTCEL13R251NBE
PTCEL13R501RBE
PTCEL13R102SBE
PTCEL17R600MBE
PTCEL17R121NBE
PTCEL17R251SBE
PTCEL17R501TBE
10
1000
1
100
10
1000
1
100
U (VRMS)
U (VRMS)
CONSECUTIVE ENERGY LOAD-DUMPS
DIFFERENT TAMB FOR PTCEL13
AT
CONSECUTIVE ENERGY / LOAD-DUMPS AT
DIFFERENT TAMB FOR PTCEL17
Axis Title
Axis Title
25 °C
1000
1st line
2nd line
55 °C
85 °C
100
105 °C
10
1
10
100
Energy / Load-Dump (J)
Revision: 17-Oct-2019
150
10000
2nd line
Number of Consecutive Load-Dumps
10
25 °C
1000
55 °C
1st line
2nd line
10000
2nd line
Number of Consecutive Load-Dumps
10
85 °C
105 °C
100
10
1
10
100
170 240
Energy / Load-Dump (J)
Document Number: 29165
3
For technical questions, contact: nlr@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product
with the properties described in the product specification is suitable for use in a particular application. Parameters provided in
datasheets and / or specifications may vary in different applications and performance may vary over time. All operating
parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
to the warranty expressed therein.
Hyperlinks included in this datasheet may direct users to third-party websites. These links are provided as a convenience and
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Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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© 2023 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2023
1
Document Number: 91000
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