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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

CST3015 Series

SMT Current Sense Transformers

Designed for use up to 1 MHz and above
Sensed current is 80 A and higher
Very low primary resistance
5000 Vrms, one minute isolation (hipot) between windings
Designed to meet reinforced insulation, at least 8 mm creepage/clearance
AEC-Q200 Grade 1 (−40°C to +125°C)

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Count	Unit price
1	$10.88
90	$9.51
270	$7.13
540	$4.29
1080	$3.33
2520	$2.86
5040	$2.62

For high volume or non-stock items, request a quote.

Termination

E = Tin-silver-copper over copper (pins 1 – 2); RoHS compliant tin-silver-copper over matte tin over nickel over phos bronze (pins 3 – 4)

Packaging

D = 13" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Inductance nom (mH) 1 (Tolerance: ±25%)	DCR max (Ω)		Turns Ratio	Volt-time product (V-µs) 2	Frequency (kHz) 3	Sensed current (A) 4	Terminating resistance R_T (Ω) 5	Isolation Voltage (Vrms) 6
Part number (Hover for schematics)	Inductance nom (mH) 1 (Tolerance: ±25%)	Pri	Sec	Pri : Sec	Volt-time product (V-µs) 2	Frequency (kHz) 3	Sensed current (A) 4	Terminating resistance R_T (Ω) 5	Isolation Voltage (Vrms) 6
CST3015-050ED	0.8	0.0001	0.44	1 : 50	319	1.57 — >1000	80.0	0.50	5000
CST3015-100ED	3.2	0.0001	1.5	1 : 100	638	0.78 — >1000	88.0	1.0	5000
CST3015-200ED	12.8	0.0001	5.9	1 : 200	1276	0.39 — >1000	87.0	2.0	5000
CST3015-300ED	28.8	0.0001	13.8	1 : 300	1914	0.26 — >1000	84.0	3.0	5000
CST3015-400ED	51.2	0.0001	24.4	1 : 400	2553	0.2 — >1000	83.0	4.0	5000

Notes

Inductance measured between secondary pins at 1 kHz, 0.1 Vrms.
Volt-time product is for the secondary, between pin 4 and 3.
For specific questions regarding frequency range, please contact us at [email protected].
Primary current that causes approximately 40°C temperature rise from 25°C ambient. Higher current causes a greater temperature rise.
Terminating resistance (R_T) value is based on 1 Volt output with 100 Amps flowing through the primary. Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation:
R_T (Ohms) = V_out × N_sec / I_in.
5000 Vrms, one minute isolation (hipot) winding to winding.

Termination:

E = RoHS compliant tin-silver-copper over copper (pins 1 – 2); RoHS compliant tin-silver-copper over matte tin over nickel over phos bronze (pins 3 – 4).

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (90 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

−40°C to +125°C

Storage temperature range:

Component: −40°C to +165°C
Tape and reel packaging: −40°C to +80°C

Maximum part temperature:

+165°C (Ambient + temperature rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Temperature vs Current

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
90	330	100	13	62,4	56,4	56	36	4	2	16,0	0,5

General specification

Core Material:

Ferrite

Weight:

16.6 – 16.9 g

Packaging:

90/13″ reel; Plastic tape: 56 mm wide, 0.5 mm thick, 36 mm pocket spacing, 16 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity

Resistance to soldering heat:

Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

CST3015 Series

SMT Current Sense Transformers