2281 809 090..
Vishay BCcomponents
Film Dielectric Trimmers
TEST VOLTAGE (DC) FOR 1 MINUTE:
500 V
FEATURES
•
High temperature type
Pb-free
MAXIMUM CONTACT RESISTANCE:
5 mΩ
•
Housing dimensions:
8 mm x 9 mm x 10 mm
•
For a basic grid of 2.54 mm
•
Versions available
with 1 or 2 rotor contacts
•
Top and bottom adjustment
•
Vertical version
e3
RoHS
COMPLIANT
MINIMUM INSULATION RESISTANCE:
10 000 MΩ
CATEGORY TEMPERATURE RANGE:
- 40 to + 125 °C
APPLICATIONS
•
For fine adjustment professional applications
DESCRIPTION:
CLIMATIC CATEGORY (IEC 60068):
40/125/21
The trimmers consist of a polysulphone housing, brass rotor
and plated brass stator with PTFE film as the dielectric. The
stator plate tags are heat sealed to the housing.
The rotor contact surfaces are plated to ensure a long life
and a stable contact even under severe climatic conditions.
A colored dot indicates the maximum capacitance.
Flux absorption between the vanes is prevented.
MINIMUM STORAGE TEMPERATURE:
- 55 °C
RELATED SPECIFICATION:
IEC 60418-1 and 4
Cleaning with solvents is not advised.
QUALITY LEVEL:
Sampling and data evaluation for quality level in accordance
with
“MIL-STD-105D”
and
“IEC 60410”:
EFFECTIVE ANGLE OF ROTATION:
180° (rotation in 180° only, see “Life of Trimmer”)
< 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.
OPERATING TORQUE:
C
max
= 5.5 pF
1 to 15 mNm
C
min
/C
max
:
1.4/5.5 to 3/18 pF
C
max
= 9 AND 18 pF
1 to 20 mNm
RATED VOLTAGE (DC):
250 V
LIFE OF TRIMMER:
MAXIMUM AXIAL THRUST:
2N
Maximum 10 cycles: rotation in 180° only (the electrical and
mechanical performance is not guaranteed if rotated beyond
10 cycles
Document Number 28532
Revision: 09-Feb-07
For technical questions contact: filmcaps.roeselare@vishay.com
www.vishay.com
337
2281 809 090..
Vishay BCcomponents
Film Dielectric Trimmers
∅
2.5
∅
2.5
0.6
0.7
0.6
0.7
10
max.
sprue
10.2
max.
sprue
1 (4
×
)
1 (4
×
)
4
± 0.5
∅
3
Z
colour mark
1)
0.8 min.
(4
×
)
4
± 0.5
0.8 min.
(4
×
)
Z
colour mark
1)
rotor (2
×
)
stator
1.2
max.
3.8
± 0.1
∅
1.6
DETAIL Z
turned 90°
1.2 max.
∅
1.6
∅
3
DETAIL Z
turned 90°
8
max.
0.85
max.
0.6 ± 0.1
0.5
± 0.15
7.7
max.
0.95
± 0.2
0.6 ± 0.1
8.8
max.
0.5
± 0.15
Trimmers 2281 809 090.. series, with one rotor contact
Trimmers 2281 809 090.. series, with two rotor contacts
Dimensions in millimeters
ADJUSTMENT
For top adjustment a screwdriver or trimming key can be used; for
bottom adjustment a key is required as shown below
5.08
R
7.64
5.08
∅
3
∅1.7
0.6
+
0.2
0
+
0.1
0
+
0.1
0.7
0
1.3
S
1.3
R
2 min.
R = rotor, S = stator.
The large hole is for bottom
adjustment and the diameter is
determined by user’s requirements
The large hole is for bottom
adjustment and the diameter is
determined by user’s requirements
Hole pattern
Bottom adjustment key
MOUNTING
The trimmer can be mounted on printed-circuit boards with a
basic grid of 2.54 mm and a minimum hole diameter of
1.25 mm
.
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338
PACKAGING
Blister packs of 105 units each. For smallest packaging
quantity (SPQ) see Electrical Data Table.
For technical questions contact: filmcaps.roeselare@vishay.com
Document Number 28532
Revision: 09-Feb-07
2281 809 090..
Film Dielectric Trimmers
Vishay BCcomponents
ORDERING INFORMATION
CATALOG NUMBER 2281 809 090.. OR BFC2 809 090..*
C
min
/C
max
(pF)
1.4/5.5
2/9
3/18
04
05
06
ROUND HEAD TOP AND BOTTOM ADJUSTMENT
VERSION WITH 1 ROTOR CONTACT
VERSION WITH 2 ROTOR CONTACTS
01
02
03
ELECTRICAL DATA
GUARANTEED
MAX. C
min
/
MIN. C
max
at 200 kHz
(pF)
1.4/5.5
round
round
2/9
round
round
3/18
round
Notes
1. PTFE = polytetrafluorethylene.
2. C: 60 % to 80 % of C
max
; T
amb
: from + 20 °C to + 125 °C.
3. Version with one rotor contact.
4. Version with two rotor contacts.
* ordering code for SAP system
360
red
525
PTFE
1)
≤
10
≤
15
- 250 ± 350
580
white
525
525
SHAPE
OF HEAD
tan
δ
at
C
max
X 10
-4
DIEL.
1 MHz
100 MHz
TEMP.
COEFF.
2)
(10
-6
/K)
MIN. f
res
at C
max
(MHz)
COL.
OF
DOT
CATALOG
NUMBER
2281 ... ..... or BFC2 ... .....*
525
850
green
525
525
.... 809 09004
3)
.... 809 09001
4)
.... 809 09005
3)
.... 809 09002
4)
.... 809 09006
3)
.... 809 09003
4)
SPQ
round
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
method of mounting
capacitance drift
thrust
robustness of terminations:
tensile
bending
rapid change of temperature
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
no damage
no damage
ΔC/C: ≤
3 %
method A
after TC measurement
axial thrust of 2 N
ΔC/C: ≤
2.0 %;
≤
3.0 % for 9 pF;
ΔC/C: ≤
0.3 %
PROCEDURE
REQUIREMENTS
23
T
Ta
Tb
Eb
soldering:
solderability
resistance to heat
impact bump
good wetting
no mechanical damage
no mechanical damage
ΔC/C: ≤
0.5 %;
no mechanical damage
24
Document Number 28532
Revision 09-Feb-07
For technical questions contact: filmcaps.roeselare@vishay.com
www.vishay.com
339
2281 809 090..
Vishay BCcomponents
IEC
60418-1
CLAUSE
25
IEC 60068
TEST
METHOD
Fc
vibration
Film Dielectric Trimmers
TEST
PROCEDURE
frequency 10 to 55 Hz;
amplitude 0.35 mm;
1.5 hours
16 hours at upper category
temperature
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
REQUIREMENTS
ΔC/C: ≤
0.3 %;
no mechanical damage
ΔC/C: ≤
2.5 %
tan
δ: ≤
10 x 10
-4
R
ins
:
≥
10000 MΩ;
rotor contact R:
≤
5 mΩ
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 20 mNm
ΔC/C: ≤
3 %
tan
δ: ≤
10 x 10
-4
R
ins
:
≥
10 000 MΩ;
rotor contact R:
≤
5 mΩ
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 20 mNm
26
26.1
B
climatic sequence:
dry heat
26.2
26.3
26.5
27
D
Aa
damp heat accelerated,
first cycle
cold
damp heat accelerated,
remaining cycles
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: ≤
3 %
ΔC/C
after axial thrust:
≤
0.3 %;
rotor contact R:
≤
5 mΩ
voltage proof:
500 V for 1 minute
visual examination:
no mechanical damage
operating torque:
1 to 20 mNm
www.vishay.com
340
For technical questions contact: filmcaps.roeselare@vishay.com
Document Number 28532
Revision: 09-Feb-07
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
www.vishay.com
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