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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

CST4835 Series

SMT Current Sense Transformers

RoHS compliant halogen free AEC-Q flag
  • Senses current up to 7 Amps
  • Designed for use between 11 kHz to 1 MHz and above
  • 9 turns ratios to meet variety of requirements
  • AEC-Q200 Grade 1 (−40°C to +125°C)

Need parts for space, military or other critical applications?
See Coilcraft AE475TCB Series
Buy Now:
Count Unit price
1 $1.83
250 $1.56
500 $1.36
1000 $1.19
2500 $1.02
5000 $0.93

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

. in stock, ready to ship today.
Request a Sample:

Specifications

Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
Inductance
min (µH) 2
DCR max (Ω) Turns Ratio Volt-time
product (V-µs) 3
Frequency (kHz) 4 Current (A) 5 Terminating
resistance RT (Ω) 6
Isolation
Voltage (Vrms) 7
Pri Sec Pri : Sec
CST4835-020E_ 33 0.0030 0.35 1 : 20 6 83 >1000 7.0 2.9 500
CST4835-030E_ 74 0.0030 0.90 1 : 30 9 56 >1000 7.0 4.3 500
CST4835-040E_ 132 0.0030 1.6 1 : 40 12 42 >1000 7.0 5.7 500
CST4835-050E_ 205 0.0030 2.5 1 : 50 15 33 >1000 7.0 7.1 500
CST4835-060E_ 295 0.0030 3.6 1 : 60 18 28 >1000 7.0 8.6 500
CST4835-070E_ 400 0.0030 4.6 1 : 70 21 24 >1000 7.0 10.0 500
CST4835-100E_ 820 0.0030 9.5 1 : 100 30 17 >1000 7.0 14.3 500
CST4835-125E_ 1280 0.0030 13.0 1 : 125 37.5 13 >1000 7.0 17.9 500
CST4835-150E_ 1800 0.0030 21.0 1 : 150 45 11 >1000 7.0 21.4 500
Notes
  1. When ordering, please specify packaging code: e.g. CST4835-150EC
  2. Inductance measured between secondary pins at 100 kHz, 0.1 Vrms, 0 Adc.
  3. Volt-time product is for the secondary, between pin 1 and 2.
  4. For specific questions regarding frequency range, please contact us at [email protected].
  5. Primary current of 7 A causes approximately 25°C temperature rise above 25°C ambient. Higher current causes a greater temperature rise (see Temperature Rise vs Current curve).
  6. Terminating resistor value is based on 1 Volt output with 7 Amps flowing through the primary. Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation:
    RT (Ohms) = Vout × Nsec / Iin.
  7. 500 Vrms, one minute isolation (hipot) winding to winding.

Termination:

  • RoHS compliant tin-silver over tin over nickel over copper (pins 2 – 1); RoHS compliant tin over nickel over copper (pins 4 – 3).

Packaging:

  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (500 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (2200 parts per full reel).
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 + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Temperature vs Current

Schematics

cst4835schematic.gif

Physical characteristics

cst4835dimensions.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T cst4835orientation.gif
500 2200* 178/330 60/100 13 18,4 12,4 12 8 4 2 6,6 0,35

General specification

Core Material:
Ferrite
Weight:
115 – 122 mg
Packaging:
500/7″ reel; 2200/13″ reel; Plastic tape: 12 mm wide, 0.35 mm thick, 8 mm pocket spacing, 3.6 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More Info.

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