L39
SERIES

Inches/mm
2 x size
±.005

Repeatable Inductance and High Q

Superior Temperature Stability

This Series a Cambion Equivalent

Winding Capacity table

Q vs Frequency Graphs

All Assemblies sold Un-wound

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)

L39-1-BT-F-4

BLUE

CARBONYL C

.15-2.0 MHz

20.0

11.5

115

54

280 ppm/° C

L39-2-BT-F-4

RED

CARBONYL E

.25-10 MHz

10.0

9.8

98

48

95 ppm/° C

L39-3-BT-F-4

GREY

CARBONYL HP

.02-1.0 MHz

35.0

13.3

133

60

370 ppm/° C

L39-6-BT-F-4

YELLOW

CARBONYL SF

2.0-50 MHz

8.5

8.5

85

44

35 ppm/° C

L39-7-BT-F-4

WHITE

CARBONYL TH

1.0-20 MHz

9.0

9.3

93

46

30 ppm/° C

L39-10-BT-F-4

BLACK

CARBONYL W

10-100 MHz

6.0

7.2

72

43

150 ppm/° C

L39-17-BT-F-4

LAVENDER

CARBONYL

20-200 MHz

4.0

5.6

56

43

50 ppm/°
C

1) The iron powder 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.

B391w/CF112

CF112

TH25-1( )

C12-30( )

CN315CT

4 TERMINAL
ASSEMBLY

BASE ONLY (6)

WINDING FORM
(7)

BASE ASSEMBLY

COLOR CODE

THREADED CORE
(8)

CUP CORE

SHIELD CAN

L39-1-BT-F-4

B391

CF112

B391-w/CF112

BLUE

TH25-101

C12-3001

CN325BT

L39-2-BT-F-4

B391

CF112

B391-w/CF112

RED

TH25-102

C12-3002

CN325BT

L39-3-BT-F-4

B391

CF112

B391-w/CF112

GREY

TH25-103

C12-3003

CN325BT

L39-6-BT-F-4

B391

CF112

B391-w/CF112

YELLOW

TH25-106

C12-3006

CN325BT

L39-7-BT-F-4

B391

CF112

B391-w/CF112

WHITE

TH25-107

C12-3007

CN325BT

L39-10-BT-F-4

B391

CF112

B391-w/CF112

BLACK

TH25-110

C12-3010

CN325BT

L39-17-BT-F-4

B391

CF112

B391-w/CF112

LAVENDER

TH25-117

C12-3017

CN325BT

6) The base is moulded from thermoset Diallyl
Phthatlate (DAP). The 4 terminals available are half hard brass, .025
inches in diameter, tin plated to MIL-STD 202 Method 208 for
solderability.

7) The CF112 coil form is a glass reinforced
polyester tube with 8-32 internal threads.

8) The tuning core is 8-32 shallow thread
coated with Teflon. Tuning-Tool-A is
the recommended adjustment tool.

Next

4769 Wesley Drive * Anaheim, California 92807
U.S.A.
Phone (714) 970-0900 * FAX (714)
970-0800
Internet: http://www.lodestonepacific.com

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