Surface Mount PTC Thermistors
For Overload Protection
2322 661 97...

Vishay BCcomponents



Document Number: 29068 For technical questions contact: nlr.europe@vishay.com www.vishay.com
Revision: 10-Oct-03 147

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).

QUICK REFERENCE DATA

Notes

1. Customized products are available on request.
2. Coated and/or reinforced types are available on request.

DESCRIPTION
VALUE
STANDARD
TYPES

(1)(2)

TELECOM
TYPES

(1)(2)

Nominal R25 2

to

500

Ω

10

to

70

Ω

Resistance tolerance

±

10%;

±

15%;

±

20%
Maximum overload current
(voltage dependent)
2 to 10 A
Non-trip current 50 to 500 mA
at 25

°

C
50 to 100 mA
at 70

°

C
Maximum voltage 16 to 400 V
(RMS)
220 to 600 V
( RMS)
Response time at 25

°

C and
20 W overload power

<

1 s

Matching

−

down to 0.5

Ω

Maximum continuous power at 2 W

ELECTRICAL DATA AND ORDERING INFORMATION

Note

1. These types pass

“ITU-T K20/21”

telecommunication protection recommendation.

R

25

V
MAX.
(V)
I

nt

at I

t

at
MAX.
TRIP-TIME
MATCHED
PAIRS
AVAILABLE
CERAMIC
SIZE
(mm)
CATALOG
NUMBER
2322 661 .....
(

Ω

) (%) 25

°

C 70

°

C 25

°

C
t

t

(s)
at I

t

(mA)
Telecommunication types; see note

1
40 25 265 80 50 130 2.5 500 no 6.5 97002
15 to 20

(1)

−

300 150 100 250 1.5 1000 0.5

Ω

6.5 97003
15 to 20

(1)

−

300 150 100 250 1.5 1000 no 6.5 97004
25

(1)

20 265 120 70 220 1.3 1000 1

Ω

6.5 97005
35

(1)

+15/

−

20 425 110 70 175 1.0 1000 1

Ω

6.5 97009
10

(1)

20 245 165 100 270 3.0 1000 no 6.5 97012
10

(1)

20 245 165 100 270 3.0 1000 0.5

Ω

6.5 97016
20

(1)

20 300 120 70 250 1.4 1000 0.5

Ω

6.5 97018
50 20 425 90 60 150 0.8 1000 1

Ω

6.5 97019

General industrial types

9.4

(1)

25 60 150 100 300 4.0 600

−

6.5 97011
3.3

(1)

25 24 400

−

650 6.0 1000

−

6.5 97013