B66344 查看數據表（PDF） - TDK Corporation

零件编号

产品描述 (功能)

生产厂家

B66344

Ferrites and accessories

TDK Corporation 

E 55/28/25

Core

■ Delivery mode: single units

Magnetic characteristics (per set)

l/A = 0.3 mm–1

le = 124 mm

Ae = 420 mm2

Amin = 420 mm2

Ve = 52100 mm3

Approx. weight 256 g/set

B66344

Ungapped

Mate- AL value

rial nH

N27 6800 +30/–20%

N87 7300 +30/–20%

e BS*

mT

1600 310

1740 310

PV

W/set

< 9.50 (200 mT, 25 kHz, 100 °C)

< 4.80 (100 mT, 100 kHz, 100 °C)

Ordering code

B66344G0000X127

B66344G0000X187

* H = 250 A/m; f = 10 kHz; T = 100 °C

Gapped

Material g

mm

AL value

e

approx.

nH

N27

2.500.05

295

70

Ordering code

B66344G2500X127

The AL value in the table applies to a core set comprising one ungapped core (dimension g = 0) and

one gapped core (dimension g > 0).

Calculation factors (for formulas, see “E cores: general information” )

Material

N27

N87

Relationship between

air gap – AL value

K1 (25 °C) K2 (25 °C)

596

– 0.769

596

– 0.769

Calculation of saturation current

K3 (25 °C)

992

950

K4 (25 °C)

– 0.847

– 0.796

K3 (100 °C) K4 (100 °C)

927

– 0.865

905

– 0.873

Validity range:

K1, K2: 0.15 mm < s < 3.50 mm

K3, K4: 220 nH < AL < 2130 nH

Please read Cautions and warnings and

Important notes at the end of this document.

2 06/13

Share Link: