232266197 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Surface Mount PTC Thermistors For Overload Protection

2322 661 97...
Vishay BCcomponents
Surface Mount PTC Thermistors
For Overload Protection
QUICK REFERENCE DATA
DESCRIPTION
Nominal R25
Resistance tolerance
Maximum overload current
(voltage dependent)
Non-trip current
Maximum voltage
Response time at 25 °C and
20 W overload power
Matching
Maximum continuous power at
VALUE
STANDARD TELECOM
TYPES⁽¹⁾⁽²⁾ TYPES⁽¹⁾⁽²⁾
2 to 500 Ω 10 to 70 Ω
±10%; ±15%; ±20%
2 to 10 A
50 to 500 mA
at 25 °C
16 to 400 V
(RMS)
50 to 100 mA
at 70 °C
220 to 600 V
( RMS)
<1 s
−
down to 0.5 Ω
2W
Notes
1. Customized products are available on request.
2. Coated and/or reinforced types are available on request.
FEATURES
• Ideal for pick-and-place circuit assembly
• Low mounting height
• Suitable for reflow soldering
• Small ceramic diameter for faster response
• Low heat transfer to substrate
• Flat terminations for stable positioning and good
solderability.
APPLICATIONS
• Telecom
– Central office switching (C.O.)
– Subscriber terminal equipment (T.E.)
– Set top box
– Modems
– Cable TV communications
• General industry and automotive
– Low power supplies overload protection
– Data bus protection.
DESCRIPTION
The component consists of a high-performance PTC
ceramic disc mounted in a lead-frame for direct soldering
onto a printed-circuit board (PCB) or substrate.
The ceramic is soldered to the leadframe by a local reflow
process, during which the solder layer is melted to the
metallized ceramic surface using a low residue flux.
MARKING
• All SMD PTCs are marked with the last 3-digits of the type
number and a date code (YYWW).
ELECTRICAL DATA AND ORDERING INFORMATION
R₂₅
(Ω)
(%)
V
MAX.
(V)
I_nt at
25 °C 70 °C
I_t at
25 °C
MAX.
TRIP-TIME
t_t
at I_t
(s)
(mA)
Telecommunication types; see note 1
40
25
265
80
50
130
2.5
500
15 to 20⁽¹⁾
−
300
150
100
250
1.5
1 000
15 to 20⁽¹⁾
−
300
150
100
250
1.5
1 000
25⁽¹⁾
20
265
120
70
220
1.3
1 000
35⁽¹⁾
+15/−20
425
110
70
175
1.0
1 000
10⁽¹⁾
20
245
165
100
270
3.0
1 000
10⁽¹⁾
20
245
165
100
270
3.0
1 000
20⁽¹⁾
20
300
120
70
250
1.4
1 000
50
20
425
90
60
150
0.8
1 000
General industrial types
9.4⁽¹⁾
25
60
150
100
300
4.0
600
3.3⁽¹⁾
25
24
400
−
650
6.0
1 000
Note
1. These types pass “ITU-T K20/21” telecommunication protection recommendation.
MATCHED
PAIRS
AVAILABLE
CERAMIC
SIZE
(mm)
CATALOG
NUMBER
2322 661 .....
no
6.5
97002
0.5 Ω
6.5
97003
no
6.5
97004
1Ω
6.5
97005
1Ω
6.5
97009
no
6.5
97012
0.5 Ω
6.5
97016
0.5 Ω
6.5
97018
1Ω
6.5
97019
−
6.5
97011
−
6.5
97013
Document Number: 29068
Revision: 10-Oct-03
For technical questions contact: [e-mail]
www.vishay.com
147