Epcos T 890, T 205, T 830, T 870, T 845 Service Manual

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Degaussing

Applications

■ Degaussing of picture tubes

Features

■ Two PTC thermistors in a plastic case (3-pin)

■ Marked with manufacurer’s logo, type

designation and date code

■ Flame-retardant case material (UL 94 V-0)

■ Solderability to IEC 60068-2-20 (test ta, methode 1)

■ Stable performance throughout a large number

of switching cycles owing to clamp contacting

■ UL approval to UL 1434 (file number E69802) (except T 205)

■ VDE approval for T 890 (license number 128911)

■ CECC 60738-1-3-001 approval for T 890

Delivery mode

■ Packed in deep-drawn trays

Dimensional drawings

Thermoplast housing for type:
T 205

17 max.

14 max.

Duroplast housing for type:
T 830, T 845, T 870, T 890

18 max.

B59***

T ***Double Mono PTC Thermistors

14 max.

19 max.

4,2

e ee

Top view

CBA

1 mm pin width

TPT0661-V-E

Top view

136 10/02

23 max.

5

CBA

eee

1 mm pin width

TPT0666-2-E

Degaussing

B59***

T ***Double Mono PTC Thermistors

Circuit diagram

Case

Coil PTC1

BC

V

220 V~

N

Coil PTC2

A

Degaussing
coil

TPT0792-W-E

General technical data

Operating temperature range (V = 0) T
Operating temperature range (V = VN) T

Electrical specifications and ordering codes

(0 s)

I

Type I

in,coil

A

pp

V

= 140 VAC, VN = 110 VAC

max

T 830

≥ 40 ≤ 60 1,5

V

= 270 VAC, VN = 230 VAC

max

T 845

≥ 48 ≤ 50 2,25

≥ 44 ≤ 50 3,5

T 870

≥ 44 ≤ 40 4,5

T 205

≥ 40 ≤ 50 4,5

T 890

r, coil

(V=V
25
mA

(180 s)

,

N

°C ≤ T

pp

op

≤ 60 °C)

R

Ω

(2

(2

(2

(2

(2

N

× 3)

× 4,5)

× 7)

× 9)

× 9)

Hole arrangement

C

B

5

e

A

5

e

TPT0608-A

coil

– 25/+ 125
0/+ 60

Hou-

Decay2)Ordering code

1)

sing

op
op

R

°C
°C

Ω

≥ 5,5 D - B59830T0060B110

≥ 10 D - B59845T0060B110

≥ 10 D - B59870T0060B110

≥ 9,25 T SD B59205T0080B110

≥ 10 D LD B59890T0060B110

Note for all types: A single degaussing coil may be replaced by two coils in parallel.

E.g. a single coil of 10

Ω can be replaced by two 20 Ω coils in parallel,

one conected to terminal A the other to terminal C.

1) T: Thermoplast housing; D: Duroplast housing

2) SD: Standard decay behavior; LD: Long decay behavior

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