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AS Series • Current Sense Inductors & Transformers
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.
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 • Meets VDE norms • Optimum performance over designated current and
frequency range • Competitive pricing due to high volume production • Manufactured in ISO-9001 approved facility
Applications
Isolated current feed-back 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
Electrical Specifications at 25°C
Part Number
AS-100 AS-101 AS-102 AS-103 AS-104 AS-105 AS-110 AS-111 AS-112 AS-113 AS-114 AS-115
Prim./Sec. Ratio
1:50 1:100 1:200 1:300 1:500 1:750 1:50CT 1:100CT 1:200CT 1:300CT 1:500CT 1:750CT
Lsec (1) (mH Min)
6 25 100 250 700 1682 6 25 100 250 700 1682
DCRsec (Ohms Max.)
Sec. Term. (2) Resistance
(Ohms Nom.)
0.6 50
1.1 100
4.5 200
D10a.t0aSheet4U.c3o0m0
25.0 500
43.0 750
0.3 / 0.3
25 + 25
0.55 / 0.55
50 + 50
2.25 / 2.25
100 + 100
5.0 / 5.0
150 + 150
12.5 / 12.5
250 + 250
21.5 / 21.5
375 + 375
Isec (3) Max.
300mA 150mA 75mA 50mA 30mA 40mA 300mA 150mA 75mA 50mA 30mA 40mA
Volt µS (4) Max.
175 350 700 900 1500 3750 175 350 700 900 1500 3750
Schematic
1
3 DataShee
1 2 3
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 value for the ratio of
1:750 corresponds to a max. primary current of 30 Amp-turns rms. 1
4) VµS = R t x Is x 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 Center-Tapped (CT) versions only
17.2 (0.677)
17.0 (0.669)
0.60 Ø (0.024)
TALEMA
ASXXX 12 3
5.0 (0.197)
20.4 (0.803)
6.35 (0.250)
12.7 (0.500)
+
4 .0 (0.157)
9.53
(0.375) 1
23
+_
_
Primary Sense Current
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THE TALEMA GROUP • World Wide Toroidal Specialists
(07-03) AS Series
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AS Series • Current -Sense Inductors & Transformers
Electrical Specifications at 25°C
Part Number
Type 1 AS.