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Path: Home > Transformer Index > Power > "Classic" H.V. - Enclosed - Chassis Mount

278X Photo

NOTE: A production "running change" has been made to the primary winding
- effective with August 2009 production
(see below)

 

Key Features:

Part Number

VA

Primary
A.C. High Voltage
Secondary
R.M.S.

Filament #1
(VAC)

Filament #2
(VAC)

Dim.
Ref.

Data Sheet

Reader File
VAC
Hz.
263AX
32
115
60
200V C.T. @ 115ma.
5V @ 2A
-
X2
PDF Download
203K
269AX
40
115
60
250V C.T. @ 115ma.
6.3V @ 2A
-
X4
PDF Download
210K
269BX
38
115
60
300V C.T. @ 86ma.
6.3V @ 2A
-
X4
PDF Download
214K
263CX
116
115
60
360V C.T. @ 287ma.
5V C.T. @ 3A
-
X9
PDF Download
217K
269EX
43
115
60
380V C.T. @ 71ma.
6.3V @ 2.5A
-
X5
PDF Download
211K
269GX
48
115
60
450V C.T. @ 75ma.
6.3V @ 2.5A
-
X5
PDF Download
211K
270X
41
115
60
480V C.T. @ 46ma.
5V @ 2A
6.3V @ 1.5A
X4
PDF Download
223K
270AX
42
115
60
480V C.T. @ 58ma.
6.3V @ 2.5A
-
X4
PDF Download
208K
269JX
50
115
60
500V C.T. @ 69ma.
6.3V @ 2.5A
-
X5
PDF Download
212K
270CAX
65
117
50/60
500V C.T. @ 81ma.
5V @ 2A
6.3V @ 2.5A
X7A
PDF Download
241K
270DAX
76
117
50/60
520V C.T. @ 104ma.
6.3V @ 3.5A
-
X7B
PDF Download
214K
270DAZ
76
117
60
520V C.T. @ 104ma.
6.3V @ 3.5A
-
Z7
PDF Download
235K
270BX
53
115
60
550V C.T. @ 57.5ma.
5V @ 2A
6.3V @ 2A
X6
PDF Download
226K
270CX
59
115
60
550V C.T. @ 75ma.
6.3V @ 0.6A
6.3V @ 2.5A
X6
PDF Download
229K
270DX
83
115
60
550V C.T. @ 104ma.
5V @ 2A
6.3V @ 3A
X7
PDF Download
227K
270EX
118
115
60
550V C.T. @ 144ma.
5V @ 3A
6.3V @ 4A
X9
PDF Download
227K
270FX
138
115
60
550V C.T. @ 173ma.
5V @ 3A
6.3V C.T. @ 5A
X10
PDF Download
236K
270HX
176
115
60
550V C.T. @ 230ma.
5V C.T. @ 3A
6.3V C.T. @ 6A
X19
PDF Download
248K
271X
63
115
60
560V C.T. @ 69ma.
5V @ 2A
6.3V C.T. @ 2A
X6
PDF Download
236K
272BX
95
115
60
600V C.T. @ 115ma.
5V @ 2A
6.3V @ 3A
X8
PDF Download
228K
272DX
123
115
60
600V C.T. @ 144ma.
5V @ 3A
6.3V @ 4A
X9
PDF Download
217K
272FX
146
115
60
600V C.T. @ 172ma.
5V C.T. @ 3A
6.3V C.T. @ 5A
X10
PDF Download
244K
272HX
186
115
60
600V C.T. @ 230ma.
5V C.T. @ 3A
6.3V C.T. @ 6A
X19
PDF Download
247K
272JX
236
115
60
600V C.T. @ 287ma.
5V C.T. @ 4A
6.3V C.T. @ 8A
X13
PDF Download
246K
272X
74
115
60
620V C.T. @ 80ma.
5V @ 2A
6.3V @ 2.4A
X7
PDF Download
226K
276X
150
115
60
640V C.T. @ 172ma.
5V C.T. @ 3A
6.3V C.T. @ 5A
X10
PDF Download
244K
273AZ
49
117
50/60
650V C.T. @ 46ma.
5V @ 2A
6.3V @ 2A
Z6
PDF Download
264K
273CZ
159
117
50/60
650V C.T. @ 172ma.
5V @ 3A
6.3V C.T. @ 5A
Z9
PDF Download
266K
273DX
101
117
50/60
700V C.T. @ 103ma.
5V @ 2A
6.3V C.T. @ 3A
X9A
PDF Download
236K
273DZ
101
117
50/60
700V C.T. @ 103ma.
5V @ 2A
6.3V C.T. @ 3A
Z8
PDF Download
264K
273X
120
115
60
700V C.T. @ 126ma.
5V @ 2A
6.3V C.T. @ 4A
X9
PDF Download
248K
273BX
182
115
60
700V C.T. @ 201ma.
5V @ 3A
6.3V C.T. @ 5A
X19
PDF Download
239K
274AX
137
117
50/60
720V C.T. @ 138ma.
5V @ 3A
6.3V C.T. @ 3.5A
X10A
PDF Download
236K
274X
138
115
60
750V C.T. @ 126ma.
5V @ 3A
6.3V C.T. @ 5A
X10
PDF Download
235K
274BX
198
115
60
750V C.T. @ 201ma.
5V C.T. @ 3A
6.3V C.T. @ 6A
X19
PDF Download
247K
275X
167
115
60
800V C.T. @ 155ma.
5V C.T. @ 3A
6.3V C.T. @ 5A
X11
PDF Download
246K
278X
229
115
60
800V C.T. @ 230ma.
5V C.T. @ 3A
6.3V C.T. @ 6A
X19
PDF Download
247K
278CX
454
115
60
800V C.T. @ 535ma.
6.3V C.T. @ 6A
-
X15
PDF Download
224K
279X
186
115
60
850V C.T. @ 172ma.
5V @ 3A
6.3V C.T. @ 5A
X19
PDF Download
237K
282X
273
115
60
1,000V C.T. @ 230ma.
5V C.T. @ 3A
6.3V C.T. @ 6A
X14 
PDF Download
246K

Note: See our PDF Design Guide for rectifier use suggestions.

Mechanical & Schematic Data:

Vertical Mount ("X" mounting)
NOTE: A production "running change" has been made to the primary winding
- effective with August 2009 production
(see below)

"X" Mount Drawing

Xfmr Schematic

* NOTE: Filament #1 and #2 windings may not exist or do not have C.T. connections - refer to table above.


Mtg. Style

Dimensions (Inches)

G-Mtg. Slot

A

B

C

D

E

X2
1.88
2.44
2.5
1.5
1.56
.19 x .31
X4
2.19
2.5
2.63
1.75
1.44
.19 x .25
X5
2.19
2.63
2.63
1.75
1.56
.19 x .25
X6
2.5
2.75
3.06
2
1.69
.203 x .38
X7
2.5
3
3.06
2
1.94
.203 x .38
X7A
2.5
3
3.13
2
2.06
.203 x .38
X7B
2.5
3
3.13
2
2.19
.203 x .38
X8
2.5
3.25
3.06
2
2.19
.203 x .38
X9
2.5
3.75
3.06
2
2.69
.203 x .38
X9A
2.88
3.5
3.5
2.25
2.44
.203 x .38
X9B
3.13
3.5
3.5
2.5
2.38
.203 x .38
X10
3.13
3.5
3.81
2.5
2.19
.203 x .38
X10A
3.13
3.5
3.88
2.5
2.38
.203 x .38
X11
3.13
3.75
3.81
2.5
2.44
.203 x .38
X13
3.75
4
4.56
3
2.81
.203 x .38
X14
3.75
4.5
4.56
3
3.31
.203 x .38
X15
3.75
5
4.56
3
3.81
.203 x .38
X19
3.13
4
3.81
2.5
2.69
.203 x .38


Horizontal Mount ("Z" mounting)
NOTE: A production "running change" has been made to the primary winding
- effective with August 2009 production
(see below)

Click Here To Enlarge
(click to enlarge)

 

Xfmr Schematic

* NOTE: Filament #1 and #2 windings may not exist or do not have C.T. connections - refer to table above.


Mtg.
Style
Dimensions (Inches)
A
B
C
D
F
G
H
J
Z6
2.00
2.50
2.50
1.75
2.00
1.06
3.00
2.50
Z7
2.25
2.88
3.25
1.88
2.38
1.25
3.38
2.81
Z8
2.25
2.81
3.63
1.75
2.25
1.50
3.38
2.81
Z9
2.50
3.13
3.81
2.00
2.69
1.33
3.75
3.13


NOTE - Running change to primary winding:

Due to customer suggestions we have added additional windings and a tap to our "200" series primaries. This will affect all production after August 2009.

 

NEW Primary Connections

 

Choice #1 (115 VAC Input):

For those customers who need the 115V input - nothing has changed - simply use the White & Gray wires and tape the Black wire (see above schematic). Note: Gray wire is actually BROWN on only our Part Number 278CX.

Choice #2 (125 VAC Input):

For those customers who are seeing too high a secondary voltage due to higher primary line voltages (roughly 125V input ) - use the White & Black wire and tape the gray wire (see above schematic).

CAUTION

NEVER connect power to BOTH the GRAY & BLACK wire - instantaneous destruction of the transformer will result!



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