BFC2 808 .....
Vishay BCcomponents
Ø 5 mm Film Dielectric Trimmers
TEST VOLTAGE (DC) FOR 1 MINUTE:
300 V
FEATURES
•
Housing diameter 5 mm
•
Top and bottom or top adjustment
Pb-free
MAXIMUM CONTACT RESISTANCE:
10 mΩ
•
Round head
•
Vertical version
e3
RoHS
COMPLIANT
MINIMUM INSULATION RESISTANCE:
10 000 MΩ
APPLICATIONS
•
For consumer and industrial equipment
CATEGORY TEMPERATURE RANGE:
PP
- 40 to + 70 °C
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 Tables). The dielectric is a
film of polypropylene (PP) or polytetrafluorethylene (PTFE)
for the standard versions and polycarbonate (PC) for the
economic and hexagonal head versions. The dielectric
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.
PC, PTFE
- 40 to + 85 °C
CLIMATIC CATEGORY (IEC 60068):
PP
40/070/21
PC, PTFE
40/085/21
QUALITY LEVEL:
MINIMUM STORAGE TEMPERATURE:
- 55 °C
Sampling and data evaluation for quality level in accordance
with
“MIL-STD-105D”
and
“IEC 60410”:
< 0.15 % major defects
< 0.65 % minor defects
Each capacitor is tested for minimum C
max
and is also
subjected to the full test voltage.
RELATED SPECIFICATION:
IEC 60418-1 and 4
EFFECTIVE ANGLE OF ROTATION:
180° (rotation in 180° only, see “Life of Trimmer”)
C
min
/C
max
:
0.35/1.5 to 4/27 pF
OPERATING TORQUE:
C
MAX
< 20 pF
1 to 15 mNm
RATED VOLTAGE (DC):
150 V
C
MAX
≥
20 pF
1 to 25 mNm
TEST VOLTAGE (DC) FOR 1 MINUTE:
300 V
MAXIMUM AXIAL THRUST:
2N
LIFE OF TRIMMER:
Maximum 10 cycles: Rotation in 180° only (the electrical and
mechanical performance is not guaranteed if rotated beyond
10 cycles)
Document Number 28526
Revision: 11-Oct-07
For technical questions contact: dc-film@vishay.com
www.vishay.com
311
BFC2 808 .....
Vishay BCcomponents
Ø 5 mm Film Dielectric Trimmers
∅
2.2
0.6
1)
0.5
H
0.4
1)
+ 0.2
0
0.3
3 ± 0.5
+ 0.1
0
1.15 max.
2.2 ± 0.2
5.6 ± 0.2
W
3
+ 0.7
- 0.5
L
5.1 ± 0.2
1.6
± 0.2
P
1.3
Hole pattern
Trimmers BFC2 808 ..... series, with round head
Dimensions in millimeters
STANDARD VERSIONS; CAPACITANCE AND RELEVANT PHYSICAL DIMENSIONS
C
min
/C
max
(pF)
0.35/1.5
1.5/5
3/10
3/15
4/20
4/27
H
max
(mm)
7.0
7.0
7.0
8.8
8.8
9.0
W
max
(mm)
5.5
5.5
5.5
5.5
5.5
6.2
L
max
(mm)
7.3
7.3
7.3
7.3
7.3
7.8
ECONOMIC VERSIONS; RELEVANT PHYSICAL DIMENSIONS
TYPE OF HEAD
Round
H
max
(mm)
7.7
W
max
(mm)
5.5
L
max
(mm)
7.3
www.vishay.com
312
For technical questions contact: dc-film@vishay.com
Document Number 28526
Revision: 11-Oct-07
BFC2 808 .....
Ø 5 mm Film Dielectric Trimmers
MOUNTING
The trimmer has a lead pitch of 5.08 mm or 5.6 mm and can
be mounted on printed-circuit boards with a minimum hole
diameter of 1.25 mm.
Vishay BCcomponents
PACKAGING
Bulk packaged in cardboard boxes lined with expanded
plastic, 1000 units per box.
ORDERING INFORMATION
CATALOG NUMBER BFC2 808 .....
C
min
/C
max
(pF)
TOP AND BOTTOM ADJUSTMENT
(P = 5.6 mm)
TOP
ADJUSTMENT ONLY
(P = 5.6 mm)
TOP
ADJUSTMENT ONLY
(P = 5.08 mm)
STANDARD VERSIONS: POLYTETRAFLUORETHYLENE, ROUND HEAD
0.35/1.5
22158
-
-
STANDARD VERSIONS: POLYPROPYLENE, ROUND HEAD
1.2/5
1.5/5
1.5/7
3/10
3/15
4/20
4/27
-
23508
-
23109
23159
23209
23279
24508
-
24708
-
-
-
-
-
20508
-
20109
20159
20209
20279
ECONOMIC VERSIONS: POLYCARBONATE, ROUND HEAD
1.5/7
1.6/15
3/20
3.5/27
-
-
-
-
20126
20127
20123
20128
-
-
-
-
ELECTRICAL DATA STANDARD VERSIONS WITH ROUND HEAD
GUARANTEED
MAX. C
min
/
MIN. C
max
AT 200 KHz
(pF)
0.35/1.5
1.2/5
1.5/5
1.5/7
3/10
TAN
δ
AT
C
max
x 10
-4
1 MHz
≤
10
≤
10
≤
10
≤
10
≤
10
≤
10
≤
10
≤
10
100 MHz
-
-
≤
25
-
≤
25
≤
25
≤
25
≤
25
TEMP.
COEFF.
1)
(10
-6
/K)
- 450 ± 550
- 200 ± 550
- 200 ± 550
- 50 ± 550
- 250 ± 550
MIN. f
res
AT C
max
(MHz)
-
-
700
-
500
COLOUR
OF
BASE
-
grey
grey
grey
yellow
SMALLEST
PACKAGING
QUANTITY
1000
1000
1000
1000
1000
CATALOG
NUMBER
BFC2 ... .....
.... 808 22158
.... 808 24508
.... 808 20508
.... 808 23508
.... 808 24708
.... 808 20109
.... 808 23109
.... 808 20159
.... 808 23159
.... 808 20209
.... 808 23209
.... 808 20279
.... 808 23279
3/15
- 250 ± 550
400
blue
1000
4/20
- 250 ± 400
300
green
1000
4/27
Note:
- 250 ± 400
300
red
1000
1. C: 60 % to 80 % of C
max
; T
amb
: from + 20 °C to + 70 °C
Document Number 28526
Revision: 11-Oct-07
For technical questions contact: dc-film@vishay.com
www.vishay.com
313
BFC2 808 .....
Vishay BCcomponents
TAN
δ
AT
C
max
x 10
-4
(1 MHz)
≤
70
≤
70
≤
70
≤
70
Ø 5 mm Film Dielectric Trimmers
ECONOMIC VERSIONS WITH ROUND HEAD
REFERENCE
C
min
/C
max
(pF)
1.5/7
1.6/15
3/20
3.5/27
TEMP.
COEFF.
(10
-6
/K)
- 50 ± 550
- 50 ± 550
- 50 ± 550
- 100 ± 400
COLOUR
OF
BASE
grey
blue
green
red
SMALLEST
PACKAGING
QUANTITY
1000
1000
1000
1000
CATALOG
NUMBER
BFC2 ... .....
.... 808 20126
.... 808 20127
.... 808 20123
.... 808 20128
TEST PROCEDURES AND REQUIREMENTS
IEC
60418-1
CLAUSE
4.2
14
19
21
21.1
21.2
22
Ua
Ub
Na
IEC
60068
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
method of mounting
capacitance drift
thrust
robustness of terminations:
tensile
bending
rapid change of temperature
method A
after TC measurement
axial thrust of 2 N
ΔC/C: ≤
3 % for C
max
≤
10 pF
ΔC/C: ≤
2 % for C
max
> 10 pF
ΔC/C: ≤
0.4 %
1N
1 cycle
1 cycle; 0.5 hours at lower and
0.5 hours at upper category
temperature
no damage
no damage
ΔC/C: ≤
2.5 %
23
T
Ta
Tb
soldering:
solderability
resistance to heat
impact bump
vibration
solder bath immersion 3 mm;
235 °C; 2 s
solder bath: 260 °C; 10 s
4000 ± 10 bumps; 40 g; 6 ms
frequency 10 to 55 Hz;
amplitude 0.75 mm;
1.5 hours
good wetting
no mechanical damage
no mechanical damage
ΔC/C: ≤
1 %;
no mechanical damage
ΔC/C: ≤
1 %;
no mechanical damage
ΔC/C: ≤
4 %
16 hours at upper category
temperature
tan
δ
or PP and PTFE foil:
≤
15 x 10
-4
tan
δ
for PC foil:
≤
80 x 10
-4
R
ins
:
≥
10 000 MΩ
rotor contact R:
≤
10 mΩ
24
25
Eb
Fc
26
26.1
B
climatic sequence:
dry heat
26.2
26.3
26.5
D
Aa
damp heat accelerated,
first cycle
cold
damp heat accelerated,
remaining cycles
1 cycle; 24 hours; + 40 °C;
95 to 100 % RH
16 hours; - 40 °C
1 cycle; 24 hours; + 40 °C;
95 to 100% RH
voltage proof:
300 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 20 mNm for C
max
< 20 pF;
1 to 30 mNm for C
max
≥
20 pF
www.vishay.com
314
For technical questions contact: dc-film@vishay.com
Document Number 28526
Revision: 11-Oct-07
BFC2 808 .....
Ø 5 mm Film Dielectric Trimmers
Vishay BCcomponents
IEC
60418-1
CLAUSE
27
IEC
60068
TEST
METHOD
Ca
TEST
PROCEDURE
REQUIREMENTS
ΔC/C: ≤
3 %
tan
δ
for PP and PTFE foil:
≤
15 x 10
-4
;
tan
δ
for PC foil:
≤
80 x 10
-4
R
ins
:
≥
10 000 MΩ;
rotor contact R:
≤
10 mΩ
voltage proof:
300 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 20 mNm for C
max
< 20 pF;
1 to 30 mNm for C
max
≥
20 pF
damp heat steady state
21 days; + 40 °C;
90 to 95 % RH
29
mechanical endurance
10 cycles
Maximum 10 cycles: rotation in 180°
only. (The electrical and mechanical
perfromance is not guaranteed if
rotated beyond 10 cycles)
ΔC/C: ≤
3 %
ΔC/C
after axial thrust:
≤
0.3 %;
rotor contact R:
≤
10 mΩ
voltage proof:
300 V for 1 minute
visual examination:
no mechanical damage
operating torque:
0.5 to 22.5 mNm for C
max
< 20 pF;
0.5 to 30 mNm for C
max
≥
20 pF
Document Number 28526
Revision 11-Oct-07
For technical questions contact: dc-film@vishay.com
www.vishay.com
315
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