140B Hammond Manufacturing, 140B Datasheet - Page 2

• Manufacturer Part Number: 140B
• Description: TRANSFORMER AUDIO 30/60K IMPED
• Manufacturer: Hammond Manufacturing
• Series: 140r

Specifications of 140B

• Transformer Type: Shielded
• Impedance: 30 Primary, 60K Secondary
• Insertion Loss: ±1dB
• Mounting Type: Chassis Mount
• Frequency Range: 70 Hz to 11 KHz
• Primary Impedance: 30 Ohms
• Secondary Impedance: 60 KOhms
• Termination Style: Solderable Lead
• Dimensions: 1.25 in W x 1 in H
• Product: Audio Transformers
• Shielding: Shielded
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Series
143...
144...
145...
146...
No.
Red
Red
Brown
Blue
Blue
Red
Red
Brown
Blue
Blue
Queenstown, Australia 61-8-8240-2244
1.35
1.35
1.63
1.63
Basingstoke, UK 01256 812812
A
PRI
PRI
PRI
PRI
Schematic 1
Schematic 2
Schematic 3
Schematic 4
Dimensions (Inches)
0.69
0.69
0.88
0.88
AUSTRALIA
B
EUROPE
SEC
SEC
SEC
SEC
0.69
0.69
0.81
0.81
Green
Green
Black
Yellow
Black
Yellow
C
Green
Green
Black
Black
1.06
1.06
1.38
1.38
D
•
•
•
•
•
•
NOTES:
*1) For output transformers this figure is maximum unbalance.
144G
144Q
145G
145O
146G
143B
143D
143H
143L
143N
143R
144B
144D
144F
144H
144P
144S
145A
145B
145C
145D
145E
145F
145H
145L
145N
145P
145R
146B
146C
146D
146E
146F
146H
146K
146N
146S
143J
145J
146J
Part
144I
146I
No.
Economical, open, two hole horizontal bracket mount.
Insulated, color coded flexible leads, 4" long minimum (143, 144 & 145 Series)
or 3" long minimum (146 Series).
For a similar, P.C. board mount version, refer to our 148 & 149 Series.
Frequency response 150 Hz. to 15 Khz. (+/- 1 db, reference 1000 Hz.)
When operating at impedances below nominal, power capability and the
frequency spectrum are proportionately lower, conversely, at higher impedances
power capability and frequency spectrum will be proportionately higher.
Net weight: 0.5 oz. (143, 144 & 146 Series) & 1.4 oz. (145 Series).
Driver-Output
Application
Input-Output
www.hammondmfg.com
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Input
Input
Input
Input
1000 C.T.
1000 C.T.
2000 C.T.
4000 C.T.
Primary
200 C.T.
300 C.T.
500 C.T.
500 C.T.
500 C.T.
600 C.T.
600 C.T.
600 C.T.
100 C.T.
100 C.T.
250 C.T.
250 C.T.
500 C.T.
500 C.T.
Nominal Impedance
48 C.T.
48 C.T.
10000
10000
25000
10000
10000
20000
50000
10000
15000
20000
20000
200K
200K
1500
3000
2000
2000
4000
4000
75
100
600
Chassis Mount (143-146 Series)
3.2
AUDIO TRANSFORMERS
Secondary
CHASSIS MOUNT
1000 C.T.
2000 C.T.
1500 C.T.
2600 C.T.
2000 C.T.
1000 C.T.
2000 C.T.
500 C.T.
200 C.T.
600 C.T.
150 C.T.
200 C.T.
600 C.T.
200 C.T.
200 C.T.
500 C.T.
600 C.T.
200 C.T.
4000
1000
1000
600
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
50
8
8
8
8
8
8
8
8
8
8
(*1) ma
D.C.
Pri.
2.6
1.5
1.5
3.5
0.5
3.5
3.5
St. Laurent, Quebec [phone]
10
45
18
20
12
12
20
20
14
14
0
0
4
1
9
6
6
6
6
5
5
1
5
8
8
5
4
8
8
6
6
4
4
3
2
Cheektowaga, NY [phone]
Guelph, Ontario [phone]
D.C. Resistance +/- 15% Output
Primary
4500
1890
1240
2400
3600
1180
1180
265
720
720
575
575
140
148
340
340
700
850
220
111
0.4
2.4
2.4
4.4
4.4
10
15
27
27
28
45
14
30
65
45
11
11
26
26
56
56
97
CANADA
USA
Secondary
0.33
0.33
0.33
245
100
0.9
7.3
8.2
0.5
0.9
0.9
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
0.7
0.7
30
24
53
89
25
19
38
52
33
83
17
24
89
10
50
89
9
9
9
mW
150
150
150
150
150
150
100
200
200
135
135
135
135
135
135
135
135
135
700
700
700
700
700
700
700
700
700
700
700
700
15
25
30
30
30
30
30
50
50
50
50
10
Sch.
1
1
2
2
2
2
2
3
3
3
3
3
4
1
1
1
2
1
2
1
4
4
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
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