TRIAD Ics
Current Sense Transformers
Web: www.TriadMagnetics.com
Phone 951-277-0757
Fax 951-277-2757
460 Harley Knox Blvd.
Perris, California 92571
Publish Date: April 18, 2019
G
AB
D
F
H
C
L
E
C
CST306-3A
Description:
Designed for switching power supply applications, Triad current sense
transformers are used to detect the current passing through a conductor.
These transformers are very reliable and operate over the frequency range of
20 kHz-200 kHz.
Electrical Specifications (@25C)
ET VµSEC
REF 20kHz
Min.
Ind. mH
DCR Max. Ω
Pri. Amps
2000
55.0
3.750
25.0 RMS
Safety:
These current sense transformers are constructed of UL rated 130°C materials.
Dimensions:
A
Min
B
Max
C
Ref
D
Ref
E
Ref
F
Max
G
Max
H
Dia. Pins
.180
.915
.528
.127
.500
.385
.690
.032
Units: In inches
Technical Notes:
1. Derate ET product by 32% for 50 kHz, 52% for 100 kHz and 50% for
unidirectional operation.
2. Rated primary current renders approximately 40°C temp. rise.
3. Maximum recommended terminating resistance of 1 ohm per turn.
4. Primary is inserted through hole in casting.
ST
FN
PIN 1 TEST C ONDUC TOR
ARROW
POLARITY DETAIL TOP VIEW
1. STAR T OF TEST COND U C TOR TO HAVE
TH E SAME POLAR ITY AS PIN 1
2. D EC AL ARR OW ON CASE TO IN DICATE
POLARITY 1
RoHS Compliance: As of manufacturing date February 2016, all standard products meet
the requirements of 2015/863/EU, known as the RoHS 3 initiative.
*Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics
website for the most current version. For soldering and washing information please see
http://www.triadmagnetics.com/faq.html