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Sense Transformers. HM31 Datasheet |
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MODEL HM31 SERIES
Encapsulated
Current Sense
Transformers
FEATURES AND BENEFITS
• Complies with VDE safety agency requirements
• Excellent temperature characteristics
• Encapsulating technique used to ensure long term reliability
• Excellent linearity (current vs. output voltage)
• Custom designs available
APPLICATIONS
• Switching power supply
• Designed to detect AC current and to supply the output for control circuitry
• Appliances
• Medical equipment
• Office equipment
• Frequency ranges 20kHz and above
ELECTRICAL / ENVIRONMENTAL
Insulation Resistance, Minimum
Operating Temperature Range
Dielectric Withstanding Voltage
Specifications subject to change without notice.
6
100 Megohms
-25°C to +105°C
4.2 kV Pri to Sec
6-75
Model HM31 Series
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FIGURE 1 (Inch/mm)
.80 Max.
20
.60 Max.
15
.80
20
Max.
.030±.002 Dia.
0.76±0.05
Solderable
Pin, Typical
.50±.010
12.76±0.25
(1) (3)
.400±.010
10.16±0.25
(2) (4)
.90 Max.
23
.14
1.6
.54 Max.
13.7
.475±.010
12.07±0.25
Bottom View
FIGURE 2A LOW COST (Inch/mm)
.69
17.5
Max.
.866
22
Max.
.195
5.0
Min.
Dia.
.378
9.6
Max.
.157±.04
4±1.0
.250
6.35
.50±.010
12.76±0.25
(1) (2) (3)
.031
0.8
Dia.
Solderable
Rigid Pin
Typical
FIGURE 2 (Inch/mm)
.67
17
Max.
.80
20
Max.
.180
4.57
Min.
Dia.
.375
9.53
Max.
.65
16.5
Min.
.250
6.35
.50±.010
12.76±0.25
(1) (2) (3)
.030±.002 Dia.
0.76±0.05
Solderable
Flexible Pin
Typical
FIGURE 3 (Inch/mm)
.70
18 Max.
.90
23
Max.
.70
18
Max.
.20
5.08 Min.
.70±.010
17.78±0.25
.50±.010
12.76±0.25
(2) (5) Leads 1 & 2:
(4)
.051±.003
1.30±0.08
Dia.
Leads 3, 4 & 5
(1) (3) .030±.002 Dia.
0.76±0.05
6-76
Model HM31 Series
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SCHEMATICS
Schematic A
(1) (3)
(2) (5)
Schematic B
(1)
(3)
Schematic C
(1)
(2)
(3)
Schematic D
(1) (3)
(4)
(2) (5)
SPECIFICATIONS
Part
Number
HM31-10050
HM31-10100
HM31-20050
HM31-20100
HM31-20200
HM31-21050
HM31-21100
HM31-21200
HM31-20050L
HM31-20100L
HM31-20200L
HM31-21050L
HM31-21100L
HM31-21200L
HM31-30050
HM31-30100
HM31-30200
HM31-30300
HM31-31050
HM31-31100
HM31-31200
HM31-31300
Turns Ratio
±1% or ±1 turn
whichever
is greater
1:50
1:100
1:50
1:100
1:200
1:25:25
1:50:50
1:100:100
1:50
1:100
1:200
1:25:25
1:50:50
1:100:100
1:50
1:100
1:200
1:300
1:25:25
1:50:50
1:100:100
1:150:150
Secondary
Inductance
@ 10 kHz
mH min.
5
20
5
20
85
1.3
5
20
5
20
85
1.3
5
20
5
20
85
195
1.3
5
20
48
Secondary
DC
Resistance
Ω Max.
0.7
1.4
0.7
1.4
4.5
0.7
1.4
4.5
0.7
1.4
4.5
0.7
1.4
4.5
0.7
1.4
4.5
11.0
0.7
1.4
4.5
11.0
Schematic
A
A
B
B
B
C
C
C
B
B
B
C
C
C
A
A
A
A
D
D
D
D
Figure
1
1
2
2
2
2
2
2
2A
2A
2A
2A
2A
2A
3
3
3
3
3
3
3
3
Secondary
V-µS Max.
300
600
330
660
1,300
150
330
660
330
660
1300
150
330
660
330
660
1,300
2,000
160
330
660
1,000
Current
1 Turn
Primary
Amps
5
5
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
6
6-77
Model HM31 Series
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