2281 808 .....
Vishay BCcomponents
Ø 7.5 mm Film Dielectric Trimmers
TEST VOLTAGE (DC) FOR 1 MINUTE:
500 V
FEATURES
•
Housing diameter 7.5 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 or hexagonal head
Pb-free
MAXIMUM CONTACT RESISTANCE:
10 mΩ
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 Table). The dielectric is a
film of polypropylene (PP), polyethylene (PE), polycarbonate
(PC), polytetrafluorethylene (PTFE), or polyethyleneterephtalate
(PET) 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 (see dimensional outlines). Both versions
have top adjustment by means of a screwdriver or trimming
key and bottom adjustment by means of a key.
PE, PC, PTFE, PET
- 40 to + 85 °C
CLIMATIC CATEGORY (IEC 60068):
PP
40/070/21
PE, PC, PTFE, PET
40/085/21
MINIMUM STORAGE TEMPERATURE:
- 55 °C
QUALITY LEVEL:
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”)
OPERATING TORQUE:
C
max
< 33 pF
1 to 15 mNm
C
min
/ C
max
:
1.4/5.5 to 3/50 pF
RATED VOLTAGE (DC):
250 V
C
max
≥
33 pF
1 to 25 mNm
LIFE OF TRIMMER:
Maximum 10 cycles: rotation in 180° only (the electrical and
mechanical performance is not guaranteed if rotated beyond
10 cycles)
MAXIMUM AXIAL THRUST:
2N
www.vishay.com
316
For technical questions, contact: filmcaps.roeselare@vishay.com
Document Number 28527
Revision 13-Feb-07
2281 808 .....
Ø 7.5 mm Film Dielectric Trimmers
Vishay BCcomponents
ROUND HEAD
∅
2.5
0.6
0.7
2.5
± 0.1
HEXAGONAL HEAD
0.6
30 ± 5
∅
2.5
0.6
0.5
0.7
10
1)
max.
10
1)
max.
110° ± 5°
Z
4
± 0.5
rotor (2×)
rotor (2×)
4 ± 0.5
5
0
- 0.1
Z
stator
1.15 max.
3 ± 0.2
stator
1.15 max.
4.5
8
max. ± 0.2
7.6
± 0.1
2.2
4.5
± 0.2
7.6
8.6
± 0.1 max.
8.6
± 0.2
∅
1.6
∅
1.6
DETAIL Z
turned 90°
DETAIL Z
turned 90
0.6 ± 0.1
0.5
± 0.15
0.95
± 0.2
0.95
± 0.2
0.6 ± 0.1
0.5
± 0.15
Trimmers 2281 808 ..... series, vertical version
Trimmers 2281 808 ..... series, horizontal version
Dimensions in millimeters
ADJUSTMENT
5.08
R
For top adjustment a screwdriver or trimming key can be used; for
bottom adjustment a key is required as shown below
7.5
R
R
∅
3
∅
1.7
+ 0.1
0
+ 0.1
0.7
0
5.08
2.5
1.3
S
1.3
R
0.6
+ 0.2
0
S
2 min.
R = rotor, S = stator
The large hole is for bottom
adjustment and the diameter is
determined by user’s requirements.
R = rotor, S = stator
Hole pattern
Bottom adjustment key
Document Number 28527
Revision 13-Feb-07
For technical questions, contact: filmcaps.roeselare@vishay.com
www.vishay.com
317
2281 808 .....
Vishay BCcomponents
ORDERING INFORMATION
CATALOG NUMBER 2281 808 ..... OR BFC2 808 .....*
C
min
/C
max
(pF)
VERTICAL VERSION
ROUND HEAD
TOP AND BOTTOM
ADJUSTMENT
1.4/5.5
2/9
2/10
2/10
2/15
2/18
2.5/20
2.5/22
2.5/27
3/33
3/40
3/50
11558
00018
11109
−
11159
00016
−
11229
11279
11339
11409
11509
TOP
ADJUSTMENT ONLY
00004
−
00005
11004
−
−
11006
00006
−
−
−
−
HEXAGONAL HEAD
TOP AND BOTTOM
ADJUSTMENT
−
−
17109
−
−
−
−
17229
−
−
17409
17509
HORIZONTAL VERSION
ROUND HEAD
TOP AND BOTTOM
ADJUSTMENT
51558
−
51109
−
−
−
−
51229
51279
−
51409
51509
Ø 7.5 mm Film Dielectric Trimmers
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 quantity (SPQ) see Electrical
Data Table.
TAN
δ
AT
C
max
x 10
-4
DIEL.
1 MHz 100 MHz
ELECTRICAL DATA
GUARANTEED
MAX. C
min
/
SHAPE
SPINDLE
OF
FIG.
MIN. C
max
HEAD
AT 200 kHz
(pF)
1.4/5.5
2/9
vertical
horizontal
vertical
vertical
2/10
horizontal
vertical
vertical
vertical
vertical
vertical
2.5/22
round
round
round
round
hexag.
round
round
round
round
round
round
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
2
1
2
1
1
1
2
1
1
2
ADJ.
MODE
TEMP.
COEFF.
(10
-6
/K)
MIN. f
res
COL.
OF
SPQ
at C
max
(MHz) BASE
1400
1400
1200
1400
1400
1400
1400
1200
1000
1400
1400
1000
1400
1400
1400
1200
1400
1200
1400
1400
1400
1200
1400
1400
1200
CATALOG
NUMBER
2281 ... ..... or
BFC2 ... .....*
.... 808 11558
.... 808 00004
.... 808 51558
.... 808 00018
.... 808 11109
.... 808 00005
.... 808 17109
.... 808 51109
.... 808 11004
.... 808 11159
.... 808 00016
.... 808 11006
.... 808 11229
.... 808 00006
.... 808 17229
.... 808 51229
.... 808 11279
.... 808 51279
.... 808 11339
.... 808 11409
.... 808 17409
.... 808 51409
.... 808 11509
.... 808 17509
.... 808 51509
2/15
2/18
2.5/20
vertical
hexag.
horizontal round
vertical
round
2.5/27
horizontal round
3/33
vertical
round
vertical
round
3/40
vertical
hexag.
horizontal round
vertical
round
3/50
vertical
hexag.
horizontal round
* ordering code for SAP system
www.vishay.com
318
top + bottom
≤
10
PE
top
top + bottom
top + bottom PTFE
≤
10
top + bottom
top
PP
≤
10
top
top + bottom
top
PC
≤
70
top + bottom PP
≤
10
top + bottom PTFE
≤
10
top
PET
≤
160
top + bottom
top
PP
≤
10
top
top + bottom
top + bottom
PC
≤
70
top + bottom
top + bottom PP
≤
10
top + bottom
PC
≤
70
top
top + bottom
top + bottom
≤
70
PC
top
top + bottom
≤
25
≤
15
≤
25
- 250 ± 350
- 150 ± 800
850
400
grey
yellow
- 250 ± 800
480
yellow
≤
100
≤
25
≤
15
-
≤
25
- 150 ± 800
- 250 ± 600
- 250 ± 350
0 ± 1100
250
450
350
250
yellow
blue
green
green
- 200 ± 500
350
green
-
-
-
- 50 ± 500
- 250 ± 350
- 50 ± 400
350
300
300
red
brown
violet
-
- 50 ± 500
250
black
For technical questions, contact: filmcaps.roeselare@vishay.com
Document Number 28527
Revision 13-Feb-07
2281 808 .....
Ø 7.5 mm Film Dielectric Trimmers
Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
60418-1
CLAUSE
4.2
14
19
21
21.1
21.2
22
IEC 60068
TEST
METHOD
TEST
method of mounting
capacitance drift
thrust
robustness of terminations:
tensile
bending
rapid change of temperature
PROCEDURE
method A
after TC measurement
axial thrust of 2 N
1N
1 cycle
1 cycle; 0.5 hours at lower and 0.5
hours at upper category
temperature
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 0.35 mm;
1.5 hours
16 hours at upper category
temperature
REQUIREMENTS
ΔC/C: ≤
1 % for C
max
< 40 pF;
ΔC/C: ≤
2.5 % for C
max
≥
40 pF
ΔC/C: ≤
0.3 %
no damage
no damage
ΔC/C: ≤
2 %
Ua
Ub
Na
23
T
Ta
Tb
Eb
Fc
soldering:
solderability
resistance to heat
impact bump
vibration
good wetting
no mechanical damage
no mechanical damage
ΔC/C: ≤
0.6 %;
no mechanical damage
ΔC/C: ≤
0.6 %;
no mechanical damage
ΔC/C: ≤
4
tan
δ: ≤
10 x 10
-4
for C
max
< 27 pF;
tan
δ: ≤
70 x 10
-4
for C
max
≥
27 pF;
tan
δ: ≤
80 x 10
-4
for C
max
≥
40 pF
R
ins
:
≥
10 000 MΩ;
rotor contact R:
≤
10 mΩ
24
25
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
21 days; + 40 °C;
90 to 95 % RH
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 15 mNm for C
max
< 33 pF;
1 to 25 mNm for C
max
≥
33 pF
ΔC/C: ≤
5 %
tan
δ: ≤
30 x 10
-4
for C
max
< 27 pF;
tan
δ: ≤
70 x 10
-4
for C
max
≥
27 pF;
tan
δ: ≤
80 x 10
-4
for C
max
≥
40 pF
R
ins
:
≥
10 000 MΩ;
rotor contact R:
≤
10 mΩ
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 15 mNm for C
max
< 33 pF;
1 to 25 mNm for C
max
≥
33 pF
27
Ca
damp heat steady state
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: ≤
1.5 %
ΔC/C
after axial thrust:
≤
0.3 %;
rotor contact R:
≤
10 mΩ
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 15 mNm for C
max
< 33 pF;
1 to 25 mNm for C
max
≥
33 pF
Document Number 28527
Revision 13-Feb-07
For technical questions, contact: filmcaps.roeselare@vishay.com
www.vishay.com
319
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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