74540 MYRRA | Alldatasheet

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Technical content

TOROIDAL / THRU–HOLE MYRRA Part N° Sec. Turns Max Pri. Current A rms Rsec. Ω max Lsec. mH min Pulse Vsec x t max @ Frequency Sine Vsec max @ Frequency Typical Load/ Accuracy/ Current 74540 100 200 A 0.35 Ω 50 2 V.ms/ 20 kHz 1 V.ms/ 100 kHz

150 V/ 20 kHz

150 V/ 100 kHz 1..20 Ω / 1% 74543 500 100 A 6.5 Ω 1250 10 V.ms/ 50 Hz 0.7 V/ 50Hz/ 100 A

1.2 V/ 50Hz/ 60 A

≤ 3 Ω / 1% / 100 A ≤ 10 Ω / 1% / 60 A 74546 1000 250 A 22 Ω 8000 100 V.ms/ 50 Hz 15 V/ 50 Hz/ 250 A ≤ 50 Ω / 1% / 250 A Data applies for one primary turn (single passage of primary wire through toroid hole). Sensitivity can be increased for lower currents by winding more than one turn. Pins : 0.6 x 0.95mm 74540/ 74543/ 74546 Pin type (for PCB) Primary Current Direction P S