Nordtek
 

AS Series Current Sensors - HF 20-200kHz

Return to normal view AS Series Current Sensors are designed as a low cost method of controlling, monitoring or measuring AC currents. The sensors serve as feedback elements between the output and pulse control circuitry providing accurate regulation of switch mode power supplies.

AS-100 Series
AS-200/300 Series
AS-400 Series

Features

  • Fully encapsulated for optimal PC board mounting
  • Frequency range from 20kHz to 200kHz
  • Primary current rating to 15 Amps
  • Primary to secondary isolated to 2500 VAC
  • UL 94-V0 recognized materials
  • Optimum performance over designated current and frequency range
  • Competitive pricing due to high volume production
  • Manufactured in ISO-9000 approved facility
   AS Series - HF 20-200kHZ

Applications

Isolated current feedback signal in Switch Mode Power Supplies - Motor current load/overload - Lighting Switch Controls Ultra-sound current - High resolution sonar current - Isolated bi-directional current sensor with full wave bridge rectifier.


AS-100 Series

Electrical Specifications at 25°C

Inductor Part Number Prim/Sec Ratio Lsec (1)
(mH Min)		 DCRsec Ohms (Max) Sec Term (2) Resistance Ohms (Nom.) Isec (3) Max Vols-µS (4) Max Schematic
 AS-100
 AS-101
 AS-102
 AS-103
 AS-104
 AS-105		 1/50
1/100
1/200
1/300
1/500
1/750		 6
25
100
250
700
1,682		 0.6
1.1
4.5
10.0
25.0
43.0		 50
100
200
300
500
750		 300mA
150mA
75mA
50mA
30mA
40mA		 175
350
700
900
1,500
3,750
 AS-110
 AS-111
 AS-112
 AS-113
 AS-114
 AS-115		 1/50CT
1/100CT
1/200CT
1/300CT
1/500CT
1/750CT		 6
25
100
250
700
1,682		 0.3/0.3
0.55/0.55
2.25/2.25
5.0/5.0
12.5/12.5
21.5/21.5		 25+25
50+50
100+100
150+150
250+250
375+375		 300mA
150mA
75mA
50mA
30mA
40mA		 175
350
700
900
1,500
3,750


Notes:

1) Lsec: Secondary inductance tested at 10kHz and 10mV for 1:50 through 1:500.
Prim./Sec. ratios and 1kHz/10mV for Prim./Sec. ratio of 1:750

2) This nominal termination resistance value will yield approximately 1.0V of output for each amp of current in a single turn sense line. The output Voltage/Ampere of these devices can be increased or decreased linearly over a restricted temperature range by adjusting the terminating resistance.

3) For Prim./Sec. Ratios of 1:50 through 1:500, the Isec value corresponds to a maximum primary current of 15 Amp-turns rms while the Isec values for the ratio of 1:750 corresponds to a max. primary current of 30 Amp-turns rms

4) VµS = Rt x ls x (1/2F)

Rt (Ohms): Recommended Terminating Resistance
Is (A): Secondary Current
F (Hz): Frequency

5) Operating Temperature Range: -40°C to +120°C

6) Pin 2 is on Centre-Tapped (CT) versions only		   Mechanical Layout




AS-200/300 Series

Electrical Specifications at 25°

Type 1 Type 2 Prim./Sec.
Ratio		 Lsec (1)
(mH Min.)		 DCRsec
Ohms (Max)		 Sec. Term (2)
Resistance
Ohms (Nom.)		 Isec (3)
Max.		 Volt-µS (4)
Max.		 Schedule
 AS-200
 AS-201
 AS-202		  AS-300
 AS-301
 AS-302		 1/50
1/100
1/200		 5
20
80		 0.65
1.30
4.50		 50
100
200		 300mA
150mA
75mA		 175
350
700
 AS-210
 AS-211
 AS-212		  AS-310
 AS-311
 AS-312		 1/50
1/100
1/200		 5
20
80		 0.65
1.30
4.50		 25+25
50+50
100+100		 300mA
150mA
75mA		 175
350
700
   AS-320
 AS-321
 AS-322		 1/50
1/100
1/200		 5
20
80		 0.65
1.30
4.50		 50
100
200		 300mA
150mA
75mA		 175
350
700
   AS-330
 AS-331
 AS-332		 1/50CT
1/100CT
1/200CT		 5
20
80		 0.65
1.30
4.50		 25+25
50+50
100+100		 300mA
150mA
75mA		 175
350
700

Mechanical Layout - Type 1
Mechanical Layout - Type 2





AS-400 Series

Features:

  • Meets requirements of IEC 950 and VDE norms
  • UL 94-V0 recognized materials
  • Operating frequency range from 20 kHz to 200 kHz
  • Operating Temperature Range: -40 °C to +120 °C
  • Primary to secondary isolated to 4000 VAC
  • Primary current rating to 80 Amps

Electrical Specifications at 25°C


Part
Number		 Prim./Sec
Ratio		 Ip A Volt-µS
(4)
Max.		 Application Schedule Box Type Dimensions
C D E F G H I Hole
 AS-400
 AS-401
 AS-402		 1/100
1/100
1/100		 1
2
5		 350
550
1,500		 Switching
Switching
Switching		 A
A
B		 17.8
23.0
32.5		 12.8
15.5
18.0		 20.0
25.0
35.5		 10.0
12.5
15.0		 5.0
10.0
12.5		 15.0
20.0
-		 5.0
5.0
- 		-
-
-
 AS-403 1/100 10 1,500 Switching A 32.5 18.0 35.5 15.0 12.5 - - -
 AS-404
 AS-405
 AS-406
 AS-407		 1/100
1/500
1/500
1/500		 50
50
65
80		 1,500
2,700
4,200
7.500		 Switching
Switching
Switching
Switching		 B
A
A
B		 32.5
23.0
27.0
32.5		 18.0
15.5
18.0
18.0		 35.5
25.0
30.0
35.5		 15.0
12.5
15.0
15.0		 12.5
10.0
12.5
12.5		 -
20.0
22.5
-		 -
5.0
5.0
-		 Ø 8
Ø 6
Ø 8
Ø 8

Mechanical Layout - Type A   Mechanical Layout - Type B