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Part: 232266093034
Category:
Description: PTC Thermistors, Overload Protection For Instrumentation
Company: Vishay Intertechnology
Datasheet: Download 232266093034 datasheet File size : 233 kB
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Datasheet text preview:
2322 66. 93034_93113
Vishay BCcomponents
PTC Thermistors, Overload Protection For Instrumentation
FEATURES AND BENEFITS
· Fast response time for rapid protection · Automatic resetting once overload is removed · No contacts to burn out · No thermal runaway · Operates on DC or AC voltage · Small size and rugged construction; see Component Outline drawing.
DESCRIPTION
Test and measuring instruments, such as oscilloscopes and digital multimeters, can be easily damaged if excessive voltages are applied across their input terminals. Simple and effective overload protection can be provided by connecting a high-voltage PTC thermistor in series with the instrument; see Typical connection of the PTC thermistor for digital multimeter protection drawing. Under normal conditions, the resistance of the PTC thermistor is low, so the test voltage will be measured by the instrument. Under an overload condition, the PTC thermistor will switch to its high-resistance state, absorbing the overload current and protecting the instrument. When the overload is removed, the PTC thermistor will return to its low-resistance state, ready to resume its protective function.
ELECTRICAL DATA AND ORDERING INFORMATION
NON-TRIP CURRENT (RMS VALUE) at 25 °C (mA) 10 10 Note 1. These PTCs can handle maximum voltage without series resistance. TRIP CURRENT (RMS VALUE) at 25 °C (mA) 20 50 NOMINAL RESISTANCE at 25 °C () 1 600 ±300 400 ±100 MAXIMUM(1) VOLTAGE (V) 600 600 INSULATION VOLTAGE (V) - >1000 CATALOG NUMBER
2322 660 93034 2322 661 93113
MECHANICAL DATA in millimeters
Component outline.
D T
PHYSICAL DIMENSIONS in millimeters
H L D T MAX. MAX. 5 10 4.5 6.5 F d MASS SPQ (g) 0.47 1.82 500 500 PQ CATALOG NUMBER
30 ±3
20 ±3
5.08 8.12
0.6 0.8
10 000 2322 660 93034 10 000 2322 661 93113
15.5 ±1.5 3.1 ±0.5
H L
F
d
CCB832
For dimensions, see Physical dimensions table. www.vishay.com 170 For technical questions contact: nlr.europe@vishay.com Document Number: 29072 Revision: 10-Oct-03
2322 66. 93034_93113
PTC Thermistors, Overload Protection For Instrumentation
TYPICAL CONNECTION OF THE PTC THERMISTOR FOR DIGITAL MULTIMETER PROTECTION.
Vishay BCcomponents
TYPICAL CURRENT/VOLTAGE CHARACTERISTIC for 2322 660 93034.
10 2
MLD319
PTC thermistor input V A INSTRUMENT
I RMS (mA)
10
1
MSB392
1
10
10 2
V RMS (V)
10 3
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC for 2322 660 93034.
109 R () 1.5 V (DC) max. 550 Vpulse
CCB915
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC for 2322 661 93113.
109 R () 1.5 V (DC) max. 375 Vpulse
CCB916
108
108
107
107
106
106
105
105
104
104
103
103
102 0 50 100 150 200 T (°C) 250
102 0 50 100 150 T (°C) 200
Document Number: 29072 Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com 171
Others parts begin by 23
23-1 23-2
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