Ø 10 mm Film Dielectric Trimmers
www.vishay.com For technical questions, contact: dc-film@vishay.com Document Number 28528
320 Revision 11-Oct-07
BFC2 808 .....
Vishay BCcomponents
FEATURES
•Housing diameter 10 mm
•For a basic grid of 2.54 mm (0.1") or 2.50 mm
•Top and bottom or top adjustment
•Vertical and horizontal versions
•Round head
APPLICATIONS
•For consumer and industrial equipment
DESCRIPTION:
The vanes of the trimmer are stacked on a sturdy plastic
base. The color of the base indicates the maximum
capacitance (see Electrical Data Table). The dielectric is a
film of polypropylene (PP), polycarbonate (PC) or
polytetrafluorethylene (PTFE), which supports the vanes in
such a way that good stability is ensured and no microphony
can occur.
Flux absorption between the vanes is prevented.
Cleaning with solvents is not advised.
Versions are available with either a vertical spindle, or a
horizontal spindle.
Both versions have top adjustment by means of a
screwdriver or trimming key and bottom adjustment by
means of a key.
QUALITY LEVEL:
Sampling and data evaluation for quality level in accordance
with “MIL-STD-105D” and “IEC 60 410” :
< 0.15 % major defects
< 0.65 % minor defects
Each capacitor is tested for minimum Cmax and is also
subjected to the full test voltage.
Cmin/Cmax:
2.5/15 to 7/105 pF
RATED VOLTAGE (DC):
150 V
LIFE OF TRIMMER:
Maximum 10 cycles: rotation in 180° only (the electrical and
mechanical performance is not guaranteed if rotated beyond
10 cycles)
TEST VOLTAGE (DC) FOR 1 MINUTE:
300 V
MAXIMUM CONTACT RESISTANCE:
10 mΩ
MINIMUM INSULATION RESISTANCE:
10 000 MΩ
CATEGORY TEMPERATURE RANGE:
PP
- 40 to + 70 °C
PC, PTFE
- 40 to + 85 °C
CLIMATIC CATEGORY (IEC 60068):
PP
40/070/21
PC, PTFE
40/085/21
MINIMUM STORAGE TEMPERATURE:
- 55 °C
RELATED SPECIFICATION:
IEC 60418-1 and 4
EFFECTIVE ANGLE OF ROTATION:
180° (rotation in 180° only, see “Life of Trimmer”)
OPERATING TORQUE:
2 to 25 mNm
MAXIMUM AXIAL THRUST:
2 N
RoHS
COMPLIANT
Pb-free
e3
BFC2 808 .....
Ø 10 mm Film Dielectric Trimmers Vishay BCcomponents
Document Number 28528 For technical questions, contact: dc-film@vishay.com www.vishay.com
Revision 11-Oct-07 321
5
± 0.1
5.85 ± 0.2
3 ± 0.2
0.6 ± 0.1
4
± 0.5
0.65
± 0.2
0.5
± 0.15
10.6
max.
11
max.
∅ 2.5
∅ 1.6
10
0
- 0.2
0.4 max.
Z
0.6
0.7
DETAIL Z
turned 90°
ROUND HEAD
5
± 0.1
5.85 ± 0.2
3 ± 0.2
0.6 ± 0.1
4
± 0.5
0.85
max.
0.5
± 0.15
10.6
max.
11
max.
∅ 2.5
∅ 1.6
10
0
- 0.2
Z
0.6
0.7
DETAIL Z
turned 90°
ROUND HEAD
10
5
1.3
RR
S
5
R = rotor, S = stator
The large hole is for bottom adjustment and the
diameter is determined by user’s requirements.
5
1.3
RR
S
7.5
2.5
R = rotor, S = stator
Hole pattern
Hole pattern
Dimensions in millimeters
Trimmers BFC2 808 ..... series, vertical version
www.vishay.com For technical questions, contact: dc-film@vishay.com Document Number 28528
322 Revision 11-Oct-07
BFC2 808 .....
Vishay BCcomponents Ø 10 mm Film Dielectric Trimmers
ADJUSTMENT
For top adjustment a screwdriver or trimming key can be
used; for bottom adjustment a key is required as shown
below
5
± 0.1
3 ± 0.2
4 ± 0.5
4.8
± 0.2
3.1 ± 0.3
11 0° ± 5°
6.5 ± 0.1
11
max.
∅ 2.5
10
0
- 0.2
Z
0.6
0.7
ROUND HEAD
0.6 ± 0.1
0.85
max.
0.5
± 0.15
∅ 1.6
DETAIL Z
turned 90°
Trimmers BFC2 808 ..... series, horizontal version
10
5
1.3
RR
S
5
R = rotor, S = stator
Hole pattern
Δ 3
2 min.
0.7 + 0.1
0
0.6 + 0.2
0
Δ 1.7
+ 0.1
0
Bottom adjustment key
ORDERING INFORMATION
Cmin /Cmax
(pF)
CATALOG NUMBER BFC2 808 .....
HORIZONTAL VERSION VERTICAL VERSION
HOLE PATTERN
5mmx10mm
HOLE PATTERN
5mmx10mm
HOLE PATTERN
7.5mm x5mm
ROUND HEAD ROUND HEAD ROUND HEAD ROUND HEAD
TOP AND BOTTOM
ADJUSTMENT TOP AND BOTTOM ADJUSTMENT TOP ADJUSTMENT
2.5/15 61159 31159 32159 -
3/22.5 61229 31229 32229 -
5.5/40 61409 31409 32409 -
5.5/50 - 01029 01006 -
5.5/65 61659 31659 32659 01001
6/80 61809 31809 32809 -
7/105 61101 31101 32101 -
6/120 - 31121 - -
Dimensions in millimeters
BFC2 808 .....
Ø 10 mm Film Dielectric Trimmers Vishay BCcomponents
Document Number 28528 For technical questions, contact: dc-film@vishay.com www.vishay.com
Revision 11-Oct-07 323
MOUNTING
The trimmer can be mounted on printed-circuit boards with a
grid of 2.50 mm or 2.54 mm and a minimum hole diameter of
1.25 mm.
PACKAGING
Bulk packaged in cardboard boxes lined with expanded
plastic. For smallest packaging quantities (SPQ)
see Electrical Data Table.
ELECTRICAL DATA
* ordering code for SAP system
TEST PROCEDURES AND REQUIREMENTS
GUARANTEED
MAX. Cmin/
MIN. Cmax
AT 200 kHz
(pF)
SPINDLE
SHAPE
OF
HEAD
FIG. ADJ.
MODE DIEL.
TAN δ AT
Cmax x10
-4TEMP.
COEFF.
(10-6/K)
MIN. fres
AT Cmax
(MHz)
COL.
OF
BASE
SPQ
CATALOG
NUMBER
BFC2 ... .....
1MHz 100MHz
2.5/15 vertical round
1
top + bottom PP ≤ 10 ≤ 25 - 200 ± 700 420 blue
800 .... 808 31159
2800 .... 808 32159
horizontal 3 700 .... 808 61159
3/22.5 vertical round
1
top + bottom PP ≤ 10 ≤ 25 - 200 ± 700 200 green
800 .... 808 31229
2800 .... 808 32229
horizontal 3 700 .... 808 61229
5.5/40 vertical round
1
top + bottom PP ≤ 10 ≤ 25 - 200 ± 400 200 grey
800 .... 808 31409
2800 .... 808 32409
horizontal 3 700 .... 808 61409
5.5/50 vertical round 1top + bottom PTFE ≤ 10 ≤ 25 - 200 ± 400 170 yellow 800 .... 808 01029
2800 .... 808 01006
5.5/65 vertical
round 2 top
PP ≤ 10 ≤ 25 - 200 ± 500 170 yellow
800 .... 808 01001
round 1
top + bottom
800 .... 808 31659
round 2 800 .... 808 32659
horizontal round 3 700 .... 808 61659
6/80 vertical round 1
top + bottom PC ≤ 70 - - 50 ± 400 170 red
800 .... 808 31809
round 2 800 .... 808 32809
horizontal round 3 700 .... 808 61809
7/105 vertical round 1
top + bottom PC ≤ 70 - - 50 ± 400 170 violet
800 .... 808 31101
round 2 800 .... 808 32101
horizontal round 3 700 .... 808 61101
6/120 vertical round 2 top + bottom PC ≤ 70 - - 50 ± 400 170 violet 800 .... 808 31121
IEC
60418-1
CLAUSE
IEC 60068
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
4.2 method of mounting method A
14 capacitance drift after TC measurement ΔC/C: ≤ 4.5 % for Cmax <40pF;
ΔC/C: ≤ 2.5 % for Cmax ≥40 pF
19 thrust axial thrust of 2 N ΔC/C: ≤ 0.3 %
21 robustness of terminations:
21.1 Ua tensile 1 N no damage
21.2 Ub bending 1 cycle no damage
22 Na rapid change of temperature 1 cycle; 0.5 hours at lower and 0.5
hours at upper category
temperature
ΔC/C: ≤ 1.5 %
23 T soldering:
Ta solderability solder bath immersion 3 mm;
235 °C; 2 s
good wetting
no mechanical damage
Tb resistance to heat solder bath: 260 °C; 10 s no mechanical damage
24 Eb impact bump 4000 ± 10 bumps; 40 g; 6 ms ΔC/C: ≤ 0.4 %;
no mechanical damage
www.vishay.com For technical questions, contact: dc-film@vishay.com Document Number 28528
324 Revision 11-Oct-07
BFC2 808 .....
Vishay BCcomponents Ø 10 mm Film Dielectric Trimmers
25 Fc vibration frequency 10 to 55 Hz;
amplitude 0.35 mm;
1.5 hours
ΔC/C: ≤ 0.8 %;
no mechanical damage
26 climatic sequence: ΔC/C: ≤ 3 % for Cmax <80pF;
ΔC/C: ≤ 6 % for Cmax ≥80 pF
26.1 B dry heat 16 hours at upper category
temperature
tan δ: ≤ 15 x 10-4 for Cmax <80pF;
tan δ: ≤ 80 x 10-4 for Cmax ≥80 pF
Rins: ≥ 10 000 MΩ;
rotor contact R: ≤ 10 Ω
26.2 D damp heat accelerated,
first cycle
1 cycle; 24 hours; + 40 °C;
95 to 100 % RH
voltage proof:
300 V for 1 minute
26.3 Aa cold 16 hours; - 40 °C visual examination:
no mechanical damage
26.5 damp heat accelerated,
remaining cycles
1 cycle; 24 hours; + 40 °C;
95 to 100 % RH
operating torque: 2 to 35 mNm
27 Ca damp heat steady state 21 days; + 40 °C;
90 to 95 % RH
ΔC/C:
≤ 3 % for Cmax < 100 pF;
≤ 3 % for Cmax ≥100 pF
tan δ: ≤ 20 x 10-4 for Cmax <80pF;
tan δ: ≤ 80 x 10-4 for Cmax ≥80 pF
Rins: ≥ 10 000 MΩ;
rotor contact R: ≤ 10 mΩ
voltage proof:
300 V for 1 minute
visual examination:
no mechanical damage
operating torque: 2 to 35 mNm
29 mechanical endurance 10 cycles
Maximum 10 cycles: rotation in
180° only (the electrical and
mechanical performance is not
guaranteed if rotated beyond 10
cycles)
ΔC/C: ≤ 1 %
ΔC/C after axial thrust: ≤ 0.4 %;
rotor contact R: ≤ 10 mΩ
voltage proof:
300 V for 1 minute
visual examination:
no mechanical damage
operating torque: 1.5 to 37 mNm
IEC
60418-1
CLAUSE
IEC 60068
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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All product specifications and data are subject to change without notice.
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