Datasheet 3D Model

ST630TCB Series

Current Sense Transformers

ST630TCB Series offers very low primary DC resistance.
  • Sensed current up to 40 A.
  • Frequency range 400 Hz – to 1 MHz.
  • Meets Reinforced Insulation per UL 60950-1.
  • 4000 Vrms, one minute isolation (hipot) between windings.
  • Tin-silver-copper over tin over copper over steel terminations (pins 1 – 3); Tin-silver-copper over tin over nickel over copper terminations (pins 4 – 5).

Looking for the commercial version of this part? See Coilcraft CST2020 Series
Request Quote:
;

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance
min (mH) 2
DCR max (Ω) Volt-time
product (V-µs) 3
Frequency (kHz) Sensed current max (A) 4 Terminating
resistance RT (Ω) 5
Isolation
Voltage (Vrms)
pri sec
ST630TCB1070LZ 3.3 0.00084 0.83 277 1.8 1000 40.0 1.8 4000
ST630TCB1100LZ 6.8 0.00084 1.2 395 1.3 1000 40.0 2.5 4000
ST630TCB1200LZ 7.2 0.00084 4.0 791 0.6 1000 40.0 5.0 4000
ST630TCB1300LZ 12 0.00084 7.8 1186 0.4 1000 40.0 7.5 4000
Notes
  1. When ordering, please specify termination and screening codes: e.g. ST630TCB1300LZ.
  2. Inductance measured between secondary pins at 10 kHz, 0.1 Vrms, 0 Adc.
  3. Volt-time product is for the secondary, between pin 3 and 1.
  4. Primary current of 40 A causes less than 40°C temperature rise from 25°C ambient. Higher current causes a greater temperature rise (see Temperature Rise vs Current curve).
  5. Terminating resistance (RT) value is based on 1 Volt output with 40 Amps flowing through the primary. Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation: RT = Vout × Nsec/Iin.

Termination:

  • L = Tin-silver-copper over tin over copper over steel (pins 1 – 3); Tin-silver-copper over tin over nickel over copper (pins 4 – 5)
  • S = Tin-lead over tin over copper over steel (pins 1 – 3); Tin-lead over tin over nickel over copper (pins 4 – 5)

Screening:

  • Z = Unscreened
  • H = Group A screening per Coilcraft CP-SA-10001
  • Screening performed to the document’s latest revision.
  • Custom testing also available.
  • Country of origin restrictions available; prefix option G.
Environmental
Ambient temperature range:
–40°C to +125°C.
Storage temperature range:
Component: –55°C to +165°C.
Tray 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 Rise vs Current

Schematics

st630tcb.png

Physical characteristics

st630tcb_dim.png

General specification

Core Material:
Ferrite
Weight:
7.0 – 8.5 g
Packaging:
100 per tray.

Washing

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 additional aqueous wash. See    Doc787_PCB_Washing.pdf.