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Teilenummer | 232266xxxxx1 |
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Beschreibung | Thermistors | |
Hersteller | Philips Components | |
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Gesamt 15 Seiten www.DataSheet4U.com
Philips Components
Thermistors for overload protection
PTC 56 V and 265 V (Ts = 120 °C)
Product specification
2322 66. 0/1/3.... series
FEATURES
• Different voltages to be chosen in
function of the application
• Available in three mechanical
versions
– 2322 66. 0.... naked discs
– 2322 66. 1.... leaded
– 2322 66. 3.... taped, on reel
(to diameter 12.5 mm)
• Wide range of trip and non-trip
currents: from 17 mA up to 3 A for
the trip current
• Wide range of resistance: from
1.6 Ω up to 1.9 kΩ
• Small ratio between trip and
non-trip currents
(It/Int ≤ 1.5 at 25 °C)
-I-In--t-t---(-(--a--a--t--t--1-5--0--5----°-°--C-C---)--)-
= 2
• Leaded parts withstand mechanical
stresses and vibration.
QUICK REFERENCE DATA
PARAMETER
VALUE
Switch temperature; note 1
120
Maximum voltage:
2322 66. 0/1/3...1
56
2322 66. 0/1/3...3
265
Temperature range:
2322 66. 0/1/3...1/3 at zero dissipation −25 to 125
2322 66. 0/1/3...1/3 at Vmax
Climatic category
0 to +70
25/125/56
Note
1. For information only.
MECHANICAL DATA
handbook, halfpage
D
t
UNIT
°C
V (DC)
V (RMS)
°C
°C
APPLICATIONS
• Telecommunications
• Automotive systems
• Industrial electronics
• Consumer electronics
• Electronic data processing.
DESCRIPTION
These directly heated thermistors
have a positive temperature
coefficient and are primarily intended
for overload protection. They consist
of a naked disc or with two tinned
brass leads.
DT
5
0.5
5
0.8
0.2
1.4
0
0.4
O 0.6
l
MLB494 - 1
Dimensions in mm.
For D, T and t see Table 1.
Fig.1 Component outline for 2322 66. 0/1...1
1996 Nov 15
1
www.DataSheet4U.com
Philips Components
Thermistors for overload protection
PTC 56 V and 265 V (Ts = 120 °C)
Reel information
Product specification
2322 66. 0/1/3.... series
handbook, halfpage
33
18 18
30
1
0
77
85.6 92
356
max
30
1
0
77
85.6 92
356
max
22.5
22.5
42 1
56 max
MBC026
Dimensions in mm.
∅D < 12 mm.
Fig.4 Dimensions of the reel for 2322 66. 3...1/3.
46 1
60 max
MBE468
Dimensions in mm.
∅D ≥ 12 mm.
Fig.5 Dimensions of the reel for 2322 66. 3...1/3.
1996 Nov 15
6
6 Page www.DataSheet4U.com
Philips Components
Thermistors for overload protection
PTC 56 V and 265 V (Ts = 120 °C)
103
ts
102
Product specification
2322 66. 0/1/3.... series
MLD331
10
1
10 1
1
2
4
Curve 1: ∅D = 20.0 mm.
Curve 2: ∅D = 16.0 mm.
Curve 3: ∅D = 12.0 and 13.0 mm.
Curve 4: ∅D = 10.0 mm.
Curve 5: ∅D = 8.0 mm.
Curve 6: ∅D = 6.5 mm.
Curve 7: ∅D = 4.5 mm.
Measured in accordance with “IEC 738”.
6
(1)
(2)
(3)
(4)
(5)
(6)
(7)
8 10 12 14 It / Int 16
Fig.8 Typical trip time as a function of trip current ratio for 2322 66. 0/1/3...3 and 2322 66. 0/1/3...1 (∅D > 12 mm).
Trip-time or switching time (ts)
To check the trip-time for a specific PTC, refer to Table 3 or 4 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 and 70 °C. Adapt the correct
non-trip current with the appropriate curve in Fig.6. Figure 7 shows the relationship between the It/Int factor and the
switching time as a function of the PTC diameter.
EXAMPLE
What will be the trip-time at Iol = 3 A and Tamb = 10 °C of a thermistor type 2322 662 12711; 6.5 Ω; ∅D = 12 mm:
Int from Table 3: 350 mA at 25 °C
Int: 350 × 1.08 = 378 mA (10 °C).
Overload current = 3 A; factor: 3⁄0.378 = 7.94. In Fig.7 at the 12 mm line and It/Int = 7.94, the typical trip time is 1.6 s.
1996 Nov 15
12
12 Page | ||
Seiten | Gesamt 15 Seiten | |
PDF Download | [ 232266xxxxx1 Schematic.PDF ] |
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