3D Model
Datasheet
ST629TCB Series
Current Sense Transformers
ST629TCB Series designed for use from 1 kHz up to 1 MHz and above to sense continuous currents to 47 Amps.
- Sensed current up to 47 A; Designed for frequency range up to 1 MHz and above.
- Very low primary DC resistance
- 1500 Vrms, one minute isolation (hipot) between windings
Specifications
Electrical specifications at 25°C.
| Part number 1 |
Inductance min (mH) 2 |
DCR max (Ω) | Turns Ratio |
Volt-time product (V-µs) 3 |
Frequency (kHz) 4 | Sensed current max (A) 5 |
Terminating resistance RT (Ω) 6 |
Isolation Voltage (Vrms) |
|
|---|---|---|---|---|---|---|---|---|---|
| pri | sec | pri : sec | |||||||
| ST629TCB1020L_ | 0.34 | 0.00036 | 0.18 | 1 : 20 | 50.8 | 10 — >1000 | 47.0 | 0.50 | 1500 |
| ST629TCB1030L_ | 0.76 | 0.00036 | 0.27 | 1 : 30 | 76.2 | 7 — >1000 | 47.0 | 0.80 | 1500 |
| ST629TCB1040L_ | 1.4 | 0.00036 | 0.56 | 1 : 40 | 101.6 | 5 — >1000 | 47.0 | 1.0 | 1500 |
| ST629TCB1050L_ | 2.1 | 0.00036 | 0.71 | 1 : 50 | 127 | 4 — >1000 | 47.0 | 1.3 | 1500 |
| ST629TCB1060L_ | 3.1 | 0.00036 | 0.85 | 1 : 60 | 152.4 | 3 — >1000 | 47.0 | 1.5 | 1500 |
| ST629TCB1070L_ | 4.2 | 0.00036 | 1.0 | 1 : 70 | 177.8 | 3 — >1000 | 47.0 | 1.8 | 1500 |
| ST629TCB1080L_ | 5.4 | 0.00036 | 1.2 | 1 : 80 | 203.2 | 2 — >1000 | 47.0 | 2.0 | 1500 |
| ST629TCB1100L_ | 8.5 | 0.00036 | 1.5 | 1 : 100 | 254 | 2 — >1000 | 47.0 | 2.5 | 1500 |
| ST629TCB1125L_ | 13 | 0.00036 | 1.9 | 1 : 125 | 317.5 | 2 — >1000 | 47.0 | 3.1 | 1500 |
| ST629TCB1150L_ | 19 | 0.00036 | 2.3 | 1 : 150 | 381 | 1 — >1000 | 47.0 | 3.8 | 1500 |
| ST629TCB1200L_ | 34 | 0.00036 | 4.1 | 1 : 200 | 508 | 1 — >1000 | 47.0 | 5.0 | 1500 |
Notes
- When ordering, please specify screening code: e.g. ST629TCB1200LZ.
- Inductance measured between secondary pins 2 - 4 at 1 kHz, 0.1 Vrms, 0 Adc.
- Volt-time product is for the secondary, between pin 2 and 4.
- For specific questions regarding frequency range, please contact us at [email protected].
- Primary current of 47 A causes approximately 40°C temperature rise from 25°C ambient. Higher current causes a greater temperature rise (see Temperature Rise vs Current curve).
- 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 over tin over nickel over phos bronze (pins 1-10); Matte tin over nickel over copper (pins 11-12)
Screening:
- Z = Unscreened
- H = Coilcraft CP-SA-10001 Group A
- Screening performed to the document’s latest revision.
- Custom testing also available.
- Country of origin restrictions available; prefix options G
Environmental
Ambient temperature range:
–40°C to +125°C.
Storage temperature range:
Component: –55°C to +165°C.
Tape and reel Packaging: –55°C to +80°C.
Tape and reel Packaging: –55°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
General specification
Core Material:
Ferrite
Weight:
4 – 4.25 g
Packaging:
300/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm pocket spacing, 10.6 mm pocket depth
Soldering/Washing
Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity).
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf.