BFC2 808 ..... Datasheet

BFC2 808 .....
www.vishay.com
Vishay BCcomponents
Ø 10 mm Film Dielectric Trimmers
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
• Round head
• Mounting: radial
• Material categorization: for definitions of
compliance please see www.vishay.com/doc?99912
APPLICATIONS
• Antennas
• Impedance matching circuits
• Medical
• RF
• For consumer and industrial equipment
QUICK REFERENCE DATA
Rated DC voltage
150 VDC
Test DC voltage for 1 min
300 VDC
Maximum contact resistance
10 m
Minimum insulation resistance
Category temperature range
Climatic category (IEC 60068)
Minimum storage temperature
Related specification
Effective angle of rotation
Operating torque
Maximum axial thrust
Capacitance range (Cmin. / Cmax.)
Life of trimmer
10 000 M
PP
-40 °C to +70 °C
PTFE
-40 °C to +85 °C
PP
40/070/21
PTFE
40/085/21
-55 °C
IEC 60418-1 and 4
180° (rotation in 180° only, see “Life of trimmer”)
2 mNm to 25 mNm
2N
2.5 pF / 15 pF to 5.5 pF / 65 pF
Maximum 10 cycles: rotation in 180° only (the electrical and mechanical
performance is not guaranteed if rotated beyond 10 cycles)
Sampling and data evaluation for quality level in accordance
with “MIL-STD-105D” and “IEC 60410”:
Quality level
< 0.15 % major defects
< 0.65 % minor defects
Each capacitor is tested for minimum Cmax. and is also subjected to
the full test voltage.
Revision: 04-Aug-15
Document Number: 28528
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
BFC2 808 .....
www.vishay.com
Vishay BCcomponents
DIMENSIONS in millimeters
FIG. 1
FIG. 2
ROUND HEAD
ROUND HEAD
Ø 2.5
Ø 2.5
0.6
0.6
0.7
0.7
11 max.
11 max.
Z
Z
4 ± 0.5
4 ± 0.5
3 ± 0.2
10.6
max.
3 ± 0.2
10.6
max.
0
10 - 0.2
5 ± 0.1
0
10 - 0.2
5 ± 0.1
0.4 max.
5.85 ± 0.2
DETAIL Z
turned 90°
5.85 ± 0.2
Ø 1.6
Ø 1.6
DETAIL Z
turned 90°
0.65 ± 0.2
0.85 max.
0.5
± 0.15
0.6 ± 0.1
0.6 ± 0.1
0.5
± 0.15
Trimmers BFC2 808 ..... series
10
5
5
R
R
R
1.3
R
2.5
7.5
5
S
S
R = Rotor, S = Stator
1.3
The large hole is for bottom adjustment and the
diameter is determined by user’s requirements.
R = Rotor, S = Stator
Hole pattern
Revision: 04-Aug-15
Document Number: 28528
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
BFC2 808 .....
www.vishay.com
Vishay BCcomponents
ADJUSTMENT
For top adjustment a screwdriver or trimming key can be used; for bottom adjustment a key is required as shown below.
Ø3
Ø 1.7 + 0.10
0.6 + 0.20
0.7 + 0.10
2 min.
Bottom adjustment key
ORDERING INFORMATION
CATALOG NUMBER BFC2 808 .....
HOLE PATTERN
HOLE PATTERN
5 mm x 10 mm
7.5 mm x 5 mm
ROUND HEAD
ROUND HEAD
ROUND HEAD
TOP AND BOTTOM ADJUSTMENT
TOP ADJUSTMENT
31159
32159
31229
32229
31409
32409
01029
01006
31659
32659
01001
Cmin. / Cmax.
(pF)
2.5 / 15
3 / 22.5
5.5 / 40
5.5 / 50
5.5 / 65
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
GUARANTEED
MAX. Cmin. /
MIN. Cmax.
AT 200 kHz
(pF)
SHAPE
OF
HEAD
2.5 / 15
Round
3 / 22.5
Round
5.5 / 40
Round
5.5 / 50
Round
5.5 / 65
Round
Round
Round
tan 
AT Cmax. x 10-4
FIG.
1
2
1
2
1
2
1
2
2
1
2
ADJ. MODE
1 MHz
100 MHz
TEMP.
COEFF.
(10-6/K)
DIEL.
MIN. fres
AT Cmax.
(MHz)
Top + bottom
PP
 10
 25
-200 ± 700
420
Top + bottom
PP
 10
 25
-200 ± 700
200
Top + bottom
PP
 10
 25
-200 ± 400
200
Top + bottom
PTFE
 10
 25
-200 ± 400
170
PP
 10
 25
-200 ± 500
170
Top
Top + bottom
COL.
OF
BASE
SP
Q
800
800
800
Green
800
800
Grey
800
800
Yellow
800
800
Yellow 800
800
Blue
CATALOG
NUMBER
BFC2 ... .....
.... 808 31159
.... 808 32159
.... 808 31229
.... 808 32229
.... 808 31409
.... 808 32409
.... 808 01029
.... 808 01006
.... 808 01001
.... 808 31659
.... 808 32659
SOLDERING CONDITIONS
For general soldering conditions and wave soldering profile, we refer to the application note “Soldering Guidelines for Film
Capacitors”: www.vishay.com/doc?28171
Revision: 04-Aug-15
Document Number: 28528
3
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
BFC2 808 .....
www.vishay.com
Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
60418-1
CLAUSE
IEC 60068
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
4.2
14
Method of mounting
Capacitance drift
Method A
After TC measurement
19
21
Thrust
Robustness of terminations:
Axial thrust of 2 N
C/C:  4.5 % for Cmax. < 40 pF;
C/C:  2.5 % for Cmax.  40 pF
C/C:  0.3 %
21.1
Ua
Tensile
1 N
No damage
21.2
22
Ub
Na
Bending
Rapid change of temperature
1 cycle
1 cycle; 0.5 h at lower and 0.5 h
at upper category temperature
No damage
C/C:  1.5 %
23
T
Soldering:
Ta
Solderability
Solder bath immersion 3 mm;
235 °C; 2 s
Good wetting,
no mechanical damage
24
Tb
Eb
Resistance to heat
Impact bump
Solder bath: 260 °C; 10 s
4000 ± 10 bumps; 40 g; 6 ms
25
Fc
Vibration
Frequency 10 Hz to 55 Hz;
amplitude 0.35 mm;
1.5 h
No mechanical damage
C/C:  0.4 %;
no mechanical damage
C/C:  0.8 %;
no mechanical damage
26
C/C:  3 % for Cmax. < 80 pF;
C/C:  6 % for Cmax.  80 pF
Climatic sequence:
26.1
B
Dry heat
16 h at upper category
temperature
tan :  15 x 10-4 for Cmax. < 80 pF;
tan :  80 x 10-4 for Cmax.  80 pF

Rins.:  10 000 M;
rotor contact R:  10 
26.2
D
Damp heat accelerated,
first cycle
1 cycle; 24 h; +40 °C;
95 % to 100 % RH
Voltage proof:
300 V for 1 min
26.3
Aa
Cold
16 h; -40 °C
Visual examination:
no mechanical damage
1 cycle; 24 h; +40 °C; 
95 % to 100 % RH
21 days; +40 °C; 
90 % to 95 % RH
Operating torque: 2 mNm to 35 mNm
Ca
Damp heat accelerated,
remaining cycles
Damp heat steady state
Mechanical endurance
10 cycles

Maximum 10 cycles: rotation in
180° only (the electrical and
mechanical performance is not
guaranteed if rotated beyond
10 cycles)
26.5
27
29
Revision: 04-Aug-15
C/C: 
 3 % for Cmax. < 100 pF;
 3 % for Cmax.  100 pF

tan :  20 x 10-4 for Cmax. < 80 pF;
tan :  80 x 10-4 for Cmax.  80 pF

Rins.:  10 000 M;
rotor contact R:  10 m

Voltage proof:
300 V for 1 min

Visual examination:
no mechanical damage

Operating torque: 2 mNm to 35 mNm
C/C:  1 %

C/C after axial thrust:  0.4 %;
rotor contact R:  10 m

Voltage proof:
300 V for 1 min

Visual examination:
no mechanical damage

Operating torque: 1.5 mNm to 37 mNm
Document Number: 28528
4
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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Revision: 02-Oct-12
1
Document Number: 91000
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