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PR7 PTC thermistor For degaussing

Article No.:PR7

Price:0

Brief Introduction:PR7 series degaussing PTC thermistors are specially designed for applications in automatic degaussing circuits of  color TV's and Monitors etc. With the characteristics of low residual current and well reliability.
 
 

 

Hwalon's PTC Thermistor For degaussing

ELECTRICAL CHARACTERISTICS

No

Item

Rated Value

Test Method

Instrument/Machine

1

Resistance

1-23000Ω±75

2-318Ω±20

Measure the Rsistance value with a dc voltage less than 1.5V at 25

Hioki

Type:Hi Tester

Serial:3227 mΩ

2

Capacitence

2-36nF

Measure the capacitance value with a dc voltage less than 1.5V at 25

Frequency:1.00KHz

LCR Meter (HP)

Type: 4284A

Serial:2P40T01292

3

Rated  Voltage

AC220Vrms

 

 

4

Max. voltage

AC290Vrms

 

 

5

Current Attenuation

Rush

After 3 sec.

180 sec

 

15 Ap-p min

120 mAp-p max

8 mAp-p max

Measure the current through a degaussing coil of standard resistance value after applying the rated voltage at ambient temperature of 25(fig.1)

Oscilloscope HP

Type: Dual input

Serial:54201 A

Current Attenuation jig test

6

Withstanding voltage

ΔR/R2520%

No damage

Supply 290Vrms for 1 min. and 350 Vrms for 3 min. to the test circuit of (fig 1.)

Breakdown voltage machine  Hioki

Type: Hi Tester

Serial: 3227 mΩ

7

Intermittent load life

ΔR/R2520%

No damage

Supply 290Vrms 10000 times at intervals of 1 min. “ON” and 5 min. “OFF” at 25to the test circuit of fig 1.

Constant Temp. Humid

Chamber(Dong 111 Co.)

On Off tester(Maxcom)

Hioki

Type: Hi Tester

Serial:3227 mΩ

8

High temp. load life

ΔR/R2520%

No damage

Supply290Vrmscontiously for 1000 hours at 85 to the test circuit of fig1

Drying Oven JEIO TECH. FO-450M

On Off tester (Maxcom)Hioki

Type:Hi Tester

Serial:3227 mΩ

9

Humidity load life

ΔR/R2520%

No damage

Supply 290Vrms at 40, 90-95% RH for 100 hours at intervals of 1.5 hours“ON”and 0.5 hour”OFF” to the test circuit of (fig 1)

Humidity Chamber Jiscio J- RHC-LCD-T

OnOff tester(Maxcom)

Hioki

Type: Hi Tester

Serial:3227 mΩ

10

Flash voltage strength

>400volt

Supply the initial voltage (300Vrms) for 30 s and increase the applied voltage every 20 volt until the test product is damage

FVS Jig test

Digital Oscilloscope(HP)

Type: Dual:input

Serial: 54201A

Resistance is measured in 24 hours after testing.

 

 

MECHANICAL CHARACTERISTICS

No.

Item

Rated Voltage

Test Method

Instrument/Machine

1.

Lead pull strength

No Damage

Fasten the body and apply the load of 2.5kg axially to each lead for 10 sec

Push pull gauge

2

Lead bend strength

No Damage

Fasten the body and apply the load of 1.0kg to one lead. Bend the body to a horizontal position by 900 and return it to the initial vertical position. Bend it to the opposite horizontal position and back to the initial position. Repeat the test for other lead.

 

3

Solder heat resistance

ΔR/R2520%

No damage

Dip each lead in the soldering bath of

350 for 3 sec. Up to 3 mm from the body. Measure the resistance of body in 24 hours after test.

Solder bath

Hioki, <, /SPAN>

Type:Hi Tester

Serial:3227 mΩ

4

Solderability

Min 75% of lead are covered with solder

Dip each lead into the flux(25% resin, 75% methanol) for 5 min. and then into the soldering bahth of 230 for 3 sec.up to 3 mm from the body.

Solder bath

5

Vibration resistance

ΔR/R2520%

No damage

Fasten the body to bascboard with solder and supply oscillation at frequency from 10 to 55 Hz and back in about 1 min. with the oscillation width of 1.5 mm for 2 hours in each of 3 mutually perpendicular plane respectively.

Hioki

Type: Hi Tester

Serial:3227 mΩ

*Resistance is measured in 24 hours after testing.         

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