English
Language : 

148D Datasheet, PDF (1/2 Pages) Hammond Manufacturing Ltd. – P.C. BOARD MOUNT AUDIO TRANSFORMERS
P.C. Board Mount (148-149 Series)
148 Series
P.C. BOARD MOUNT
AUDIO TRANSFORMERS
• Pin type (0.25" length & 0.025" square), P.C. board mount.
149 Series
• Economical, open type, horizontal bracket construction. 149 Series includes clinching lugs for extra mounting
strength.
• Frequency response 200 Hz. - 15 Khz. (+/- 1 db, ref. @ 1 Khz.).
• Total distortion approximately 2% for drivers and 1% for outputs at 200 Hz., decreasing at higher frequencies.
• Insertion loss less than 1/2 db.
• Bifilar wound for balanced capacitive and resistance characteristics, on pin bobbins for standard 0.2" grid pin spacing.
• Insulation test 250V RMS.
• For rugged epoxy cast type units refer to our 102, 104, 106, or 107, 108 & 109 series.
• Net weight: 0.6 oz. (148 Series) & 1.0 oz. (149 Series).
1
5
2
6
1
5
Part
No.
Application
Nominal Impedance Pri D.C. D.C. Resistance +/- 15% (*2) Output Dwg.
Primary Secondary (*1) ma. Primary
Secondary Milliwatts Figure
3
7
2
7
4
8
148A
148B
148C
Input
Input
Input
150/600 600/2400
1.9
150
400/1600
3.8
50000 250/1000
0
45
11.3
1760
300
200
300
300
1
2
4
8
PRI SEC
25.4
12
2
PRI SEC
Figure 5
148D
Input
200K
1000
0
1760
6.2
3
3
Figure 1
148E
Driver
500
125/500
18
79
60
75
2
148F
Driver
1500
125/500
11.6
148H
Driver
3000 250/1000
7.5
148K
Driver
4000 500/2000
6.5
148M
Driver
6000 500/2000
5.3
148Q
Driver
10000 500/2000
4.1
148R
Driver
20000 250/1000
2.4
148T
Output
500 C.T.
3.2
2.1
220
480
540
850
1700
2230
41
58
75
2
107
75
2
5
1
230
230
75
75
2
2
1
6
2
5
238
75
2
4
7
3
8
123
50
2
0.34
300
4
8
4
148V
Output
600 C.T. 150 C.T.
1.9
45
148X
Output 4000 C.T.
3.2
0.8
380
148Y
Output 5000 C.T. 500 C.T.
0.7
410
14
0.34
52
300
300
300
5
4
5
PRI SEC
Figure 2
PRI SEC
Figure 6
149C
Driver
160
20/80
56
24
149E
Driver
300
30/120
42
41
149F
Driver
450
40/160
33
52
149G
Driver
600
150/600
29
92
149H
Driver
1000
60/240
22
155
149Q
Output
200 C.T.
3.2
7
19
149S
Output
600 C.T. 150 C.T.
4
53
149T
Output
600 C.T. 600 C.T.
4
53
149U Output
150/600
8
4
53
149V
Hybrid
600 C.T. 300/1200
4
53
6.5
200
2
9.7
200
2
19
200
2
58
200
2
24
200
2
0.4
1000
4
17
1000
5
70
1000
5
95
1000
6
63
1000
7
NOTES:
*1) For output transformers the current figure is for maximum unbalanced current
*2) D.C. resistance shown is for the total primary or secondary windings (ie: if unit contains multiple primary or
secondary windings the figure shown is with the windings connected in series).
1
5
4
8
PRI SEC
Figure 3
1
2
5
4
8
PRI SEC
Figure 4
1
5
3
6
4
7
8
PRI SEC
Figure 7
EUROPE
CANADA
Basingstoke, UK 01256 812812
www.hammondmfg.com
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
73
USA
Cheektowaga, NY (716) 630-7030
©