Ferrites and accessories
PM 74/59
Core and accessories
Series/Type: B65686, B65687
Date: January 2019
TDK Electronics AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto
and the information contained therein without TDK Electronics prior express consent is prohibited.PM 74/59
Core B65686
To IEC 61247
Particularly suitable for power transformers
and energy storage chokes
Delivery mode: sets
Magnetic characteristics (per set)
1
6 l/A = 0.162 mm
l = 128 mm
e
2
A = 790 mm
e
2
A = 630 mm
min
3
V = 101000 mm
e
Approx. weight 537 g/set
Gapped (A values/air gaps examples)
L
Material A value s P Ordering code
L e
approx.
nH mm
N27 315 r 3% 3.80 41 B65686A0315A027
630 r 3% 1.50 81 B65686A0630A027
Ungapped
Material A value P P Ordering code
L e V
nH W/set
N27 10000 +30/20% 1290 < 7.5 (150 mT, 25 kHz, 100 q C) B65686A0000R027
N87 10000 +30/20% 1290 < 9.6 (100 mT, 100 kHz, 100 q C) B65686A0000R087
Other A values/air gaps and materials available on request see Processing remarks on page 4.
L
Please read Cautions and warnings and
2 1/19
Important notes at the end of this document.