Inches/mm
2 x size
±.005

L41 SERIES

ASSEMBLY PART NO.
COLOR CODE
MAGNETIC MATERIAL (1)
FREQUENCY RANGE (2)
MATERIAL PERMEABILITY
ASSEMBLY ALnH/turns2 (3)
MAX µh
100 turns
MIN µh (4)
100 Turns
TEMPERATURE STABILITY (5)
L41-2-BT-F-5
RED
CARBONYL E
.25-10 MHz
10.0
11.5
115
64
95 ppm/° C
L41-3-BT-F-5
GREY
CARBONYL HP
.02-1.0 MHz
35.0
15
150
66
370 ppm/° C
L41-3F-BT-F-5
GREY/ORANGE
HP/FERRITE
.01-1.0 MHz
80.0
19.2
192
74
1000 ppm/° C
L41-6-BT-F-5
YELLOW
CARBONYL SF
2.0-5.0 MHz
8.5
10.5
105
63
35 ppm/° C
L41-10-BT-F-5
BLACK
CARBONYL W
10-100 MHz
6.0
8
80
62
150 ppm/° C
L41-17-BT-F-5
LAVENDER
CARBONYL
20-200 MHz
4
6
60
50
50 ppm/° C

1) The iron powder or ferrite materials are used in the tuning core and cup core.

2) This represents the frequency range for Q optimization in tuned or resonant circuits. The inductive properties of the material is effective over a considerably wider frequency range.

3) Nanohenries (10-9Henries) per turn squared.

4) The minimum inductance is measured in microhenries (10-6 Henries) per 100 turns with the tuning core tuned out of the winding area but still a part of the assembly.

5) The temperature stability is of the magnetic material, measured in parts per million per degree Celsius (ppm/° C) on a toroidal core and winding. This is only an indication of the temperature stability for a complete wound assembly.

B325
TH35-3( )
C12-40( )
CN325BT

5 TERMINAL ASSEMBLY
BASE ONLY (6)
COLOR CODE
TUNING CORE (7)
CUP CORE
SHIELD CAN
L41-2-BT-F-5
B352
RED
TH35-302
C12-4002
CN325BT
L41-3-BT-F-5
B352
GREY
TH35-303
C12-4003
CN325BT
L41-3F-BT-F-5
B352
GREY/ORANGE
TH35-350
C12-4003
CN325BT
L41-6-BT-F-5
B352
YELLOW
TH35-306
C12-4006
CN325BT
L41-10-BT-F-5
B352
BLACK
TH35-310
C12-4010
CN325BT
L41-17-BT-F-5
B352
LAVENDER
TH35-317
C12-4017
CN325BT

6) The base and self threading segregated coil form are one piece, moulded from nylon 6/6 and will require careful heat management. The 5 terminals available are half hard brass, .025 inches in diameter, tin plated to MIL-TD 202 Method 208 for solderability.

7) The tuning core is 10-32 shallow thread coated with Teflon. Tuning-Tool-A is the recommended adjustment tool.


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