VISHAY 2322 671 91. Technical data

查询232267191供应商

2322 671 91...

Vishay BCcomponents

PTC Thermistors, For Temperature Protection

FEATURES

• Well-defined protection temperature levels

• Very fast reaction time

• Accurate resistance for ease of circuit design

• Excellent long term behavior

• Wide range of protection temperatures

• No need to reset supply after overtemperature switch

• Small size and rugged

• Coated leaded and naked devices available.

QUICK REFERENCE DATA

PARAMETER VALUE UNIT

Maximum resistance at 25

Minimum resistance at
(T

Maximum (DC) voltage 30 V

Temperature range

Weight:

91002 to 91014

91072 to 91087

91102 to 91114

91152 to 91164

Climatic category 25/125/56

+ 15)

n

° C

° C 120

4000

− 20 to (T

≈ 0.013 g

≈ 0.003 g

≈ 0.08 g

≈ 0.09 g

+ 15)

n

° C

Ω

Ω

APPLICATIONS

• Industrial electronics

• Power supplies

• Electronic data processing

• Motor protection.

DESCRIPTION

These directly heated thermistors have a positive
temperature coefficient and are primarily intended for
sensing.

NOMINAL WORKING TEMPERATURES AND ORDERING INFORMATION

NOMINAL WORKING TEMPERATURE TYPE/CATALOG NUMBER 2322 ... .....

RESISTANCE

−−

T

n

°°

°°

(

C)

70 30 to 250 50 to 570 0.570 to 50 91072 91002 91102 91152 black
80 30 to 250 50 to 550 1.33 to 50 91073

90 30 to 250 50 to 550 1.33 to 50 91074
100 30 to 250 50 to 550 1.33 to 50 91075
110 30 to 250 50 to 550 1.33 to 50 91076 91006 91106 91156 yellow
120 30 to 250 50 to 550 1.33 to 50 91077 91007 91107 91157 green
125 30 to 250 50 to 550 1.33 to 50 91078
130 30 to 250 50 to 550 1.33 to 50 91079 91009 91109 91159 blue
135 30 to 250 50 to 550 1.33 to 50 91081
140 30 to 250 50 to 550 1.33 to 50 91082 91012 91112 91162 violet
145 30 to 250 50 to 550 1.33 to 50 91083
150 30 to 250 50 to 550 1.33 to 50 91084 91014 91114 91164 grey
155 30 to 250 50 to 550 1.33 to 50 91085
160 30 to 250 50 to 550 1.33 to 50 91086 91016
170 30 to 250 50 to 550 1.33 to 50 91087 91017

Notes

1. Naked chips are packed in a hermetically-sealed alu-plastic bag.

2. Resistance at T

www.vishay.com For technical questions contact: nlr
172 Revision: 10-Oct-03

−−

from

20

−−

−−

to T

20

n

ΩΩ

ΩΩ

(

)

+5 ° C = 0.570 to 50 k Ω .

n

°°

°°

C

°°

°°

C

RESISTANCE

−−

°°

−−

at T

°°

5

C

n

ΩΩ

ΩΩ

(

)

RESISTANCE

++

°°

++

at T

°°

5

C

n

ΩΩ

ΩΩ

(k

)

NAKED CHIP

××

××

1.0

1.0

(mm)

671 ..... 671 ..... 671 ..... 671 .....

(2)

(2)

(2)

[e-mail] Document Number: 29074

(1)

××

××

1.7

1.7

(mm)

91003 91103 91153 brown
91004 91104 91154 red
91005 91105 91155 orange

−− − −

−− − −

−− − −

−− − −

NORMAL

LEADS

LEADED DEVICE

LONG

LEADS

−− −

−− −

COLOR

CODE

Component outline for 91152 to 91164.

JW128

O 0.4

3.0 max

2.54

40.0

3.5 max

7.0 max

0.5 min

min

2322 671 91...

PTC Thermistors, For Temperature Protection

Vishay BCcomponents

ELECTRICAL CHARACTERISTICS

PARAMETER VALUES

Maximum resistance at 25

Maximum resistance at (T

Minimum resistance at (T

Minimum resistance at (T

° C 120 Ω

− 5) ° C see Nominal Working Temperatures and Ordering Information table

n

+ 15)

° C 4000 Ω

n

+ 5)

° C see Nominal Working Temperatures and Ordering Information table

n

Maximum voltage 30 V (AC or DC)

DIMENSIONS in millimeters

PACKAGING QUANTITIES AND CATALOG NUMBERS

PACKAGING

SPQ PQ

5000 20000 671 91002 to 671 91014

5000 20000 671 91072 to 671 91087

500 5000 671 91102 to 671 91114

500 5000 671 91152 to 671 91164

CATALOG NUMBERS

2322 ... .....

COMPONENT OUTLINES

3.5 max

0.5 min

20.0
2

2.54

Component outline for 91102 to 91114.

91071 to 91087

1.0 0.1

1.0 0.1

Component outline for 91071 to 91087.

MGC102

0.5 0.1

JW127

3.0 max

7.0 max

O 0.4

91002 to 91017

1.7 0.15 0.8 0.1

1.7 0.15

MGA051

Component outline for 91002 to 91017.

For clamping, reflow or hand soldering. Not intended for either wave or ultrasonic soldering and not for spot welding.

All standard solder alloys with low activated halogene-free fluxes are acceptable, for example: 62Sn/36Pb/2Ag.

Document Number: 29074 For technical questions contact: nlr
Revision: 10-Oct-03 173

[e-mail] www.vishay.com

2322 671 91...

Vishay BCcomponents

PTC Thermistors, For Temperature Protection

APPLICATION SPECIFIC DATA

Negative Temperature Coefficient (NTC) thermistors are well known for temperature sensing. What is not well known, however,
is that Positive Temperature Coefficient (PTC) thermistors can be used for thermal protection. Although their operating principles
are similar, the applications are very different; whereas NTC thermistors sense and measure temperature over a defined range,
PTC thermistors switch at one particular temperature.
Just like thermostats they protect such equipment and components as motors, transformers, power transistors and thyristors
against overtemperature. A PTC thermistor is less expensive than a thermostat, and its switch temperature can be more
accurately specified. It is also smaller and easier to design-in to electronic circuitry.

So how does it work? The PTC thermistor is mounted in thermal contact with the equipment to be protected, and connected into
the bridge arm of a comparator circuit, such as shown in Fig.1. At normal temperature, the PTC thermistor resistance (R
than R
thermistor will quickly heat up to its trigger or nominal reference temperature T
much higher than R

(see Fig.2), so the comparator's output voltage V

s

, causing V

s

to switch to a high level sufficient to activate an alarm, relay or power shutdown circuit.

O

will be low. If an equipment overtemperature occurs, the PTC

O

, whereupon its resistance will increase to a value

n

) is lower

p

APPLICATION EXAMPLES

MBA921 - 2

V

R1

o

R

s

R

L

RpR

(R1 = R2)

s

V

R

f

R2

θ

PTC
thermistor
R

p

Fig.1 .Typical comparator circuit.

θ

θ

θ

As soon as one or more of the windings becomes too hot, the
motor is switched off.

MBA920

MBD129

O

RpR

s

(R1 = R2)

trigger

temperature

T

n

Fig.2 Typical switch characteristic.

A

θ

θ

θ

θ

o

T ( C)

Fig.3 Temperature protection of electric motors

www.vishay.com For technical questions contact: nlr
174 Revision: 10-Oct-03

The PTC thermistors located above the fluid level will be
heated to a temperature greater than T
When immersed they are cooled such that their
resistance value is reduced.

Fig.4 Liquid-level indication.

[e-mail] Document Number: 29074

MBD126

.

n

TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91055/005/105,

91056/006/106 and 91057/007/107.

CCB898

10

10

2

10

3

10

4

0 50 100 150 200 250

R

(Ω)

T (°C)

10

6

10

5

Tn = 100 °C

Tn = 110 °C

Tn = 120 °C

1.5 V (DC) max.

2322 671 91...

PTC Thermistors, For Temperature Protection

TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91052/002/102,

91053/003/103 and 91054/004/104.

CCB897

(Ω)

10

R

10

10

10

10

6

5

4

3

Tn = 90 °C

2

1.5 V (DC) max.

Tn = 80 °C

Tn = 70 °C

Vishay BCcomponents

10

0 50 100 150 200 250

TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91058,

91059/009/109 and 91061.

6

10

1.5 V (DC) max.

(Ω)

R

5

10

4

10

3

10

2

10

Tn = 130 °C

Tn = 135 °C

Tn = 125 °C

T (°C)

CCB899

TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91062/012/112,

91063 and 91064/014/114.

CCB900

(Ω)

10

R

10

10

10

10

6

5

4

3

2

1.5 V (DC) max.

Tn = 145 °C

Tn = 150 °C

Tn = 140 °C

10

0 50 100 150 200 250

Document Number: 29074 For technical questions contact: nlr
Revision: 10-Oct-03 175

T (°C)

10

0 50 100 150 200 250

T (°C)

[e-mail] www.vishay.com

2322 671 91...

Vishay BCcomponents

PTC Thermistors, For Temperature Protection

TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91065,

91066 and 91067.

CCB901

Tn = 160 °C

Tn = 170 °C

(Ω)

10

R

10

10

10

6

5

4

3

1.5 V (DC) max.

Tn = 155 °C

2

10

10

0 50 100 150 200 250

T (°C)

www.vishay.com For technical questions contact: nlr

[e-mail] Document Number: 29074

176 Revision: 10-Oct-03