WebpageSample& buy

Tools &software

Support& FAQ

Document 1608-1

Current Sense Transformers CST3015
HalogenFree• Designed for up to 1 MHz and above• Sensed current is 80 A and higher• Very low primary DC 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)

AEC

Q200 +125°C

Core material Ferrite
Environment RoHS compliant, halogen freeTerminations RoHS compliant tin-silver-copper over copper(pins 1 – 2); RoHS compliant tin-silver-copper over matte tin overnickel over phos bronze (pins 3 – 4)
Weight 16.6 – 16.9 g
Ambient temperature –40°C to +125°C
Maximum part temperature +165°C (ambient + temp rise)
Storage temperature Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.

Part number1
CST3015-050ED
CST3015-100ED
CST3015-200ED
CST3015-300ED
CST3015-400ED

Turns
(N)
pri : sec
1:50
1:100
1:200
1:300
1:400

Inductance2	   DCR (Ohms)
nom ±25%
PriSec(mH)
max
max
0.80
0.00010.44
3.20
0.00011.54
12.80
0.00015.94
28.80
0.000113.78
51.20
0.000124.41

1. Termination: E = RoHS compliant tin-silver-copper over copper(pins 1 – 2); RoHS compliant tin-silver-copper over mattetin 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).
2. Inductance measured between secondary pins at 1 kHz, 0.1 Vrms.
3. For specific questions regarding frequency range, please contact us atcst@coilcraft.com.
4. Volt-time product is for the secondary, between pin 4 and 3.
5. Primary current that causes approximately 40°C temperature rise from25°C ambient. Higher current causes a greater temperature rise (seeTemperature Rise vs Current curve).
This information is for reference only and does not represent absolutemaximum ratings.
6. Terminating resistance (RT) value is based on 1 Volt output with
100 Amps flowing through the primary. Varying terminating resistanceincreases or decreases output Voltage/Ampere according to thefollowing equation: RT (Ohms) = Vout × Nsec / Iin.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Frequencyrange3(kHz)
1.57 - >1000
0.78 - >1000
0.39 - >1000
0.26 - >1000
0.20 - >1000

Volt-time
product4(V-µsec)
319638
1276
1914
2553

Sensedcurrent Iin5(A)808887
8483

Terminating
resistance RT6(Ohms)
0.5
12
3
4

Document 1608-1

Revised 06/15/21

Typical Circuits

Specificationssales@coilcraft.com
subject to change without notice.
US +1-847-639-6400
Please check our
website for latest information.
UK +44-1236-730595
sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg© Coilcraft Inc. 2023
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 1608-2

CST3015 Series Current Sense Transformers
Temperature Rise vs Current

Dimensions

HalogenFree

AEC

Q200 +125°C

Dimensions are ininchesmm

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

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 1608-2

Revised 06/15/21© Coilcraft Inc. 2023
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.