2322 661 93056

2322 661 93056 Datasheet

2322

Part	Datasheet
2322 661 93056	2322 661 93056 (pdf)

Related Parts	Information
2322 661 93048	2322 661 93048
2322 661 93148	2322 661 93148
2322 661 93124	2322 661 93124

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2322 Vishay BCcomponents PTC Thermistors, Overload Protection For Telecommunication PRIMARY PROTECTION OPTIONAL subscriber lines SECONDARY PROTECTION PTC voltage clamp SUBSCRIBER LOOP INTERFACE CIRCUIT SLIC OR TRANSFORMER CCB913 Typical telephone line showing where PTC thermistors can be used for overcurrent protection. Advanced developments in telephony equipment in recent years have radically altered the protection requirements for both exchange and subscriber equipment. The Vishay BCcomponents range of Positive Temperature Coefficient PTC thermistors includes devices specially designed to provide overcurrent protection. • Wide resistance range in telecom area to 70 • Fast protection against power contact faults • Withstand high overload currents of up to 10 A • High voltage withstanding capabilities for the larger sized thermistors • Good tracking over a wide temperature range for all matched or binned types • UL1434 approved types available XGPU2 • Excellent stability over extended time • All telecom PTCs are coated with a high temperature silicon lacquer UL94V0 to protect them from any harsh environments and to improve their lifetime. • Main Distribution Frame MDF • Central Office Switching C.O. • Subscriber Terminal Equipment T.E. • Set-top box S.B. . MARKING Clear marking on a grey coated body. BC and R25 value. ELECTRICAL DATA AND ORDERING INFORMATION RESISTANCE MATCHING V MAX. Vrms NON-TRIP CURRENT TRIP CURRENT MAX. TRIP TIME at 1A I MAX. at V MAX. APPLICATION AREA 4 I MAX mA °C mA °C ±20 ±20 ±20 ±15 ±20 ±20 20 +10/−20 ±20 ±20 ±25 ±25 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 C.O. MDF ISDN C.O. C.O. T.E. T.E. MDF C.O. T.E. MDF ISDN MDF T.E. Surge pulses of up to 2 kV can occur and in order to withstand short-term power induction the PTC thermistor must withstand high voltages. If the line has primary protection a 220 V to 300 V PTC thermistor is adequate. Without primary protection, however, a 600 V PTC device is necessary. Vishay BCcomponents manufacturers a range of PTC thermistors see Electrical Data and Ordering Information Table covering both requirements. In the case of direct contact between the telephone line and a power line, the PTC thermistor must withstand very high PTC THERMISTORS IN BULK inrush power at normal mains voltage. Under such conditions, overload currents of up to 10 A on a 230 V mains could occur for up to several hours. To handle this power, the resistance/temperature characteristic of the thermistor must have a very steep slope and the ceramic must be extremely homogeneous. In case of overcurrent due to short-term induction of alternating voltages, currents of several AMPs with voltages as high as 650 VRMS can be present for several seconds For standard high voltage applications, resistance values from 25 to 50 are available. However, ISDN networks which carry high-frequency sound and vision, need lower line impedance. Telecommunication designers are therefore demanding high voltage thermistors with much lower R25 values, which places even greater demands on the manufacture of PTC thermistors. For these applications PTC thermistors which have a R25 value of 10 with voltages in the 300 to 600 VRMS range are available. In a typical telephone line application, two PTC thermistors are used, one each for the tip and ring or A and B wire together with their series resistors. For good line balance it is important that the thermistor and resistor pairs are matched. On request, Vishay BCcomponents can supply matched or binned PTC thermistors with R25 values matched to as close as H3 H2 CCB914 COMPONENT DIMENSIONS AND PACKAGING in millimeters D MAX. MM T MAX. MM H2 MM L1 MM to 3 to − − − − − − − − 20 − H3 MAX. MM H0 MM 16 18 16 18 16 − 18 − − 16 − PACKAGING 1 2 TYPE Taped on Reel Taped on Reel Taped on Reel Taped on Reel Taped on Reel Taped on Reel disc on tray Taped on Reel Bulk Taped on Reel Bulk S.P.Q. 3,000 3,000 3,000 3,000 3,000 3,000 5,600 3,000 200 250 3,000 500 For technical questions contact: P.Q. 6,000 6,000 6,000 6,000 6,000 6,000 5,600 6,000 6,000 6,000 6,000 6,000 CATALOG NUMBER 2322 661 93048 661 93147 661 93037 661 93175 662 93081 662 93074 661 93118 661 93148 663 93025 661 93078 661 93121 661 93124 PTC Thermistors, Overload Protection For Telecommunication 2322 Vishay BCcomponents D MAX. MM T MAX. MM H2 MM L1 MM H3 MAX.

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2322

Vishay BCcomponents

PTC Thermistors, Overload Protection For Telecommunication

PRIMARY PROTECTION OPTIONAL
subscriber lines

SECONDARY PROTECTION

PTC voltage clamp

SUBSCRIBER LOOP

INTERFACE CIRCUIT SLIC OR

TRANSFORMER

CCB913

Typical telephone line showing where PTC thermistors can be used for overcurrent protection.

Advanced developments in telephony equipment in recent years have radically altered the protection requirements for both exchange and subscriber equipment. The Vishay BCcomponents range of Positive Temperature Coefficient PTC thermistors includes devices specially designed to provide overcurrent protection.
• Wide resistance range in telecom area to 70
• Fast protection against power contact faults
• Withstand high overload currents of up to 10 A
• High voltage withstanding capabilities for the larger sized
thermistors
• Good tracking over a wide temperature range for all
matched or binned types
• UL1434 approved types available XGPU2
• Excellent stability over extended time
• All telecom PTCs are coated with a high temperature
silicon lacquer UL94V0 to protect them from any harsh environments and to improve their lifetime.
• Main Distribution Frame MDF
• Central Office Switching C.O.
• Subscriber Terminal Equipment T.E.
• Set-top box S.B. .

MARKING

Clear marking on a grey coated body.

BC and R25 value.
ELECTRICAL DATA AND ORDERING INFORMATION

RESISTANCE

MATCHING V MAX.

Vrms

NON-TRIP CURRENT

TRIP CURRENT

MAX. TRIP TIME at 1A

I MAX. at

V MAX.

APPLICATION AREA 4

I MAX
mA °C mA °C
±20
±20
±20
±15
±20
±20
20 +10/−20
±20
±20
±25
±25
±20
±20
±20
±20
±20
±20
±20
±20

C.O.

MDF ISDN

C.O.

C.O.

T.E.

T.E.

MDF C.O.

T.E.

MDF ISDN

MDF T.E.
Surge pulses of up to 2 kV can occur and in order to withstand short-term power induction the PTC thermistor must withstand high voltages. If the line has primary protection a 220 V to 300 V PTC thermistor is adequate. Without primary protection, however, a 600 V PTC device is necessary. Vishay BCcomponents manufacturers a range of PTC thermistors see Electrical Data and Ordering Information Table covering both requirements.

In the case of direct contact between the telephone line and a power line, the PTC thermistor must withstand very high

PTC THERMISTORS IN BULK
inrush power at normal mains voltage. Under such conditions, overload currents of up to 10 A on a 230 V mains could occur for up to several hours. To handle this power, the resistance/temperature characteristic of the thermistor must have a very steep slope and the ceramic must be extremely homogeneous.

In case of overcurrent due to short-term induction of alternating voltages, currents of several AMPs with voltages as high as 650 VRMS can be present for several seconds

For standard high voltage applications, resistance values from 25 to 50 are available. However, ISDN networks which carry high-frequency sound and vision, need lower line impedance.

Telecommunication designers are therefore demanding high voltage thermistors with much lower R25 values, which places even greater demands on the manufacture of PTC thermistors. For these applications PTC thermistors which have a R25 value of 10 with voltages in the 300 to 600 VRMS range are available.

In a typical telephone line application, two PTC thermistors are used, one each for the tip and ring or A and B wire together with their series resistors. For good line balance it is important that the thermistor and resistor pairs are matched.

On request, Vishay BCcomponents can supply matched or binned PTC thermistors with R25 values matched to as close as

H3 H2

CCB914

COMPONENT DIMENSIONS AND PACKAGING in millimeters

D MAX. MM

T MAX. MM

H2 MM

L1 MM
to 3 to
− − − − − − − − 20 −

H3 MAX. MM

H0 MM
16 18 16 18 16 − 18 − − 16 −

PACKAGING 1 2

TYPE

Taped on Reel Taped on Reel Taped on Reel Taped on Reel Taped on Reel Taped on Reel
disc on tray Taped on Reel

Bulk Taped on Reel Bulk

S.P.Q.
3,000 3,000 3,000 3,000 3,000 3,000 5,600 3,000 200 250 3,000 500

For technical questions contact:

P.Q.
6,000 6,000 6,000 6,000 6,000 6,000 5,600 6,000 6,000 6,000 6,000 6,000

CATALOG NUMBER 2322
661 93048 661 93147 661 93037 661 93175 662 93081 662 93074 661 93118 661 93148 663 93025 661 93078 661 93121 661 93124

PTC Thermistors, Overload Protection For Telecommunication
2322

Vishay BCcomponents

D MAX. MM

T MAX. MM

H2 MM

L1 MM

H3 MAX.

More datasheets: M3907 BK002 | CY3213A-CAPSENSE | AT88SC0204C-CI | ACY011 | F0482A | F0481A | F0484A | F0483A | 2322 661 93048 | 2322 661 93148

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Datasheet ID: 2322 661 93056 521588