PTCCL11H251HBE Vishay, PTCCL11H251HBE Datasheet - Page 3

• Manufacturer Part Number: PTCCL11H251HBE
• Description: THERMISTOR PTC 12 OHM 265V
• Manufacturer: Vishay
• Series: 2381r
• Type: PTCr

Specifications of PTCCL11H251HBE

• Resistance In Ohms @ 25°c: 12
• Resistance Tolerance: ±20%
• Operating Temperature: 0°C ~ 70°C
• Power - Max: 10.5mW
• Mounting Type: Through Hole
• Package / Case: Radial
• Mounting Style: Through Hole
• Pin Count: 2
• Screening Level: Commercial
• Resistance @ 25c: 12Ohm
• Percentage Of Resistance Tolerance @ 25c: ±20
• Operating Temperature Min Deg. C: 0C
• Operating Temperature Max Deg. C: 70C
• Product Length (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Product Depth (mm): 5.5mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 2381 662 52513; 2381 662 52513; 238166252513; BC2724

VOLTAGE DERATING AS A FUNCTION OF AMBIENT TEMPERATURE
ELECTRICAL CHARACTERISTICS I
I
PTC when passing from the low ohmic to high ohmic state at rated voltage.
When other voltages are present after tripping, the I
Voltages below V
TYPICAL TRIP-TIME AS A FUNCTION OF TRIP CURRENT RATIO
Trip-time or switching time (t
To check the trip-time for a specific PTC, refer to the Electrical Data and Ordering Information tables for the value Int. Divide the
overload or trip current by this Int and you realize the factor It/Int. This rule is valid for any ambient temperature between 0 °C
and 70 °C. Adapt the correct non-trip current with the appropriate curve in the Current Deviation as a Function of the Ambient
Temperature graph. The relationship between the It/Int factor and the switching time is a function of the PTC diameter; see the
above graphs.
Example
What will be the trip-time at I
Overload current = 0.8 A; factor I
line and I
Document Number: 29087
Revision: 18-Aug-09
max.
I
I
nt
nt
: 170 x 0.87 = 148 mA (at 50 °C).
from the table: 170 mA at 25 °C
as stated in the electrical data and ordering information tables, is the maximum overload current that may flow through the
t
/I
nt
= 5.40, the typical trip-time is 3.0 s.
rated
will allow higher overload currents to pass the PTC.
ol
= 0.8 A and T
s
10
I
t
(%)
max
10
10
s
)
120
100
200
150
100
10
t
80
-1
/I
80
60
40
20
1
3
2
0
nt
- 50
1
0
:
0.8
2
/
0.148
- 25
For technical questions, contact:
amb
= 5.40. In the typical trip-time as a function of trip current ratio graph, at the 8.5 mm
For Overload Protection
265 V PTC Thermistors
4
max.
0
= 50 °C of a thermistor type 2381 661 51713; 22 Ω; Ø D
40
50
max.
AS A FUNCTION OF VOLTAGE
25
6
value can be derived from the above I
70
50
8
75
100
10
100
2381 66. 5...3/PTCCL..H...HBE
[e-mail]
120
125
12
150
150
14
175
(1)
(2)
(3)
(4)
(5)
(6)
(7)
V
T
rated
I
amb
t
/I
Vishay BCcomponents
nt
max.
(°C)
(%)
16
200
as a function of voltage graph.
Curve 1: Ø D
Curve 2: Ø D
Curve 3: Ø D
Curve 4: Ø D
Curve 5: Ø D
Curve 6: Ø D
Curve 7: Ø D
Measured in accordance with
“IEC 60738”.
max.
= 8.5 mm:
max.
max.
max.
max.
max.
max.
max.
www.vishay.com
= 20.5 mm
= 16.5 mm
= 12.5 mm
= 10.5 mm
= 8.5 mm
= 7.0 mm
= 5.0 mm
27