Datasheet 3D Model
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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
Voltage (Vrms)
pri sec
ST630TCB1100LZ 6.8 0.00084 1.2 395 1.3 1000 40.0 2.5 4000
  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.


  • 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)


  • 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.
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



Physical characteristics


General specification

Core Material:
7.0 – 8.5 g
100 per tray.


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.