Over-load Protection 270 V PTC Thermistors / 2 Pins Posistor Thermistor

Price Negotiable

Price: Negotiable

MOQ: 5000PCS

Delivery Time: 7 working days

Brand: UCHI

Product Description

Over-load Protection 270 V PTC Thermistors / 2 Pins Posistor Thermistor

Quick Details

·Optional on 3 construction, resin coated leaded form, 2 pins, dual PTC 3 pins.

·Nominal resistance from 3 ohm to 36 ohm.

Outlook and Dimension (mm)

Descirption

PTC thermistor degauss the shadow mask of color picture tube by reducing the alternating current flowing through the degaussing coil within a short period of time. A large difference between inrush current and residual current is crucial for good degaussing. We can provide leaded and housed PTC thermsitor for degaussing purpose. Particularly, in a double PTC, a PTC connected to the coil, as compared to a single PTC, this configuration permits the residual current to reduce further.

PTC degaussing principle

By using dual PTC thermistor, residual current is significantly reduced.

Application

Degaussing of picture tube, such as color TV, monitor.

Specification

Degaussing PTC Thermistor resin coated leaded disk form data sheet

Nominal Resistance R25 (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Current Characteristics			Switch Temperature (℃)	Coil Resistance (Ω)	Diameter (mm)	Thickness (mm)
Nominal Resistance R25 (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Initial Current (A)	After 3 seconds (mA)	After 180 seconds (mA)	Switch Temperature (℃)	Coil Resistance (Ω)	Diameter (mm)	Thickness (mm)
5	110	140	≥35	≤300	≤60	60±10	3.5	20	7
7	110	140	≥28	≤300	≤60		3.5
8	110	140	≥22	≤300	≤60		5
9	110	140	≥21	≤300	≤60		5
12	110	140	≥17	≤300	≤60		5
7	220	270	≥22	≤300	≤45		20
9	220	270	≥20	≤300	≤45		20
12	220	270	≥22	≤300	≤45		15
14	220	270	≥20	≤300	≤45		15
18	220	270	≥19	≤300	≤45		12
27	220	270	≥15	≤300	≤30		10	11.5-13.0	7

PTC degausser encased 2 pins form data sheet

Nominal Resistance R25 (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Current Characteristics			Switch Temperature (℃)	Coil Resistance (Ω)	Min. coil resistance (mm)
Nominal Resistance R25 (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Initial Current (A)	After 3 seconds (mA)	After 180 seconds (mA)	Switch Temperature (℃)	Coil Resistance (Ω)	Min. coil resistance (mm)
3	110	140	≥22	≤300	≤60	60±10	10	5
4.5	110	140	≥30	≤300	≤60		5	4
5	110	140	≥35	≤300	≤60		3.5	1
5	110	140	≥24	≤300	≤60		5	4
8	110	140	≥22	≤300	≤60		5	3.5
9	110	140	≥20	≤250	≤50		5	3
12	110	140	≥17	≤250	≤50		5	3
14	110	140	≥15	≤250	≤50		5	3
4.5	220	270	≥30	≤200	≤50		15	12
7	220	270	≥27	≤200	≤50		15	12
9	220	270	≥24	≤200	≤40		15	10
12	220	270	≥24	≤200	≤40		12	8
14	220	270	≥24	≤200	≤40		10	8
18	220	270	≥22	≤200	≤40		8	6
27	220	270	≥17	≤200	≤40		6	5
14	220	270	≥24	≤300	≤50	80±10	10	8
18	220	270	≥20	≤300	≤50	80±10	10	8

Degaussing PTC Thermistor dual PTC 3 pins form data sheet

Nominal Resistance R25 (Ω)	Resistance of Assistance PTC Heater (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Current Characteristics			Switch Temperature (℃)	Coil Resistance (Ω)
Nominal Resistance R25 (Ω)	Resistance of Assistance PTC Heater (Ω)	Rated. Voltage (V)	Max. Voltage (V)	Initial Current (A)	After 3 seconds (mA)	After 180 seconds (mA)	Switch Temperature (℃)	Coil Resistance (Ω)
3	100-1000	110	140	≥28	≤300	≤15	60±10	5.5
4.5		110	140	≥23	≤300	≤15		8
5		110	140	≥35	≤300	≤15		3.5
7		110	140	≥24	≤300	≤15		5
8		110	140	≥22	≤300	≤15		5
9		110	140	≥17	≤300	≤15		8
12		110	140	≥14	≤300	≤15		8
14		110	140	≥12	≤300	≤15		10
4.5		220	270	≥30	≤300	≤12		15
7		220	270	≥26	≤300	≤10		15
9		220	270	≥24	≤300	≤10		15
12		220	270	≥24	≤300	≤10		12
14		220	270	≥24	≤300	≤10		10
18		220	270	≥22	≤300	≤10		8
27		220	270	≥14.5	≤300	≤6		12
36		220	270	≥12.5	≤300	≤6		10

Degaussing PTC Thermistor Reliability data

Test	Standard	Test conditions	\|ΔR25/R25\|
Switching test at room temperature	IEC 60738-1	Vmax; Rs Room temperature Number of cycles: 10000	<20%
Life test at Vmax/Top	IEC 60738-1	Storage at Vmax/Top for T: 1000h	<20%
Rapid change of temperature in air	IEC600628-2-14, Test Na	T=T_LCT, T=T_UCT Number of cycles: 5 T:30min	<20%
Climate sequence	IEC 600628-2-27	Dry heat: T= T_UCT,t:16h Damp heat first cycle Cold: T= T_LCT t:2h Damp heat 5 cycles
Damp heat	IEC 600628-2-3	Temperature of air: 40oC Relative humidity of air: 93% Duration: 56 days	<10%