BFC280811279 - VISHAY - Datasheet.Live

Ø 7.5 mm Film Dielectric Trimmers

www.vishay.com For technical questions, contact: dc-film@vishay.com Document Number 28527

316 Revision 02-Oct-07

BFC2 808 .....

Vishay BCcomponents

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 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), 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.

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:

1.4/5.5 to 3/50 pF

RATED VOLTAGE (DC):

250 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:

500 V

MAXIMUM CONTACT RESISTANCE:

10 mΩ

MINIMUM INSULATION RESISTANCE:

10 000 MΩ

CATEGORY TEMPERATURE RANGE:

- 40 to + 70 °C

PE, PC, PTFE, PET

- 40 to + 85 °C

CLIMATIC CATEGORY (IEC 60068):

40/070/21

PE, PC, PTFE, PET

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:

Cmax < 33 pF

1 to 15 mNm

Cmax ≥ 33 pF

1 to 25 mNm

MAXIMUM AXIAL THRUST:

2 N

RoHS

COMPLIANT

Pb-free

BFC2 808 .....

Ø 7.5 mm Film Dielectric Trimmers Vishay BCcomponents

Document Number 28527 For technical questions, contact: dc-film@vishay.com www.vishay.com

Revision 02-Oct-07 317

3 ± 0.2

max.

∅ 2.5

0.6

0.7

ROUND HEAD

4.5

± 0.2

7.6

± 0.1

max.

± 0.5

0.6 ± 0.1

0.5

± 0.15

0.95

± 0.2

∅ 1.6

DETAIL Z

turned 90

Trimmers BFC2 808 ..... series, vertical version

5 0

- 0.1 1.15 max.

stator

rotor (2×)

101)

max.

∅ 2.5

0.6

0.7

4.5

± 0.2

7.6

± 0.1

8.6

max.

4 ± 0.5

8.6 ± 0.2

110° ± 5°

0.6 ± 0.1

0.5

± 0.15

0.95

± 0.2

∅ 1.6

DETAIL Z

turned 90°

Trimmers BFC2 808 ..... series, horizontal version

1.3

5.08

1.3

2.5

7.5

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

ADJUSTMENT

For top adjustment a screwdriver or trimming key can be used; for

bottom adjustment a key is required as shown below

∅ 3

2 min.

0.7 + 0.1

0.6 + 0.2

∅ 1.7

+ 0.1

Bottom adjustment key

Dimensions in millimeters

www.vishay.com For technical questions, contact: dc-film@vishay.com Document Number 28527

318 Revision 02-Oct-07

BFC2 808 .....

Vishay BCcomponents Ø 7.5 mm Film Dielectric Trimmers

ORDERING INFORMATION

Cmin/Cmax

(pF)

CATALOG NUMBER BFC2 808 .....

VERTICAL VERSION HORIZONTAL VERSION

ROUND HEAD ROUND HEAD

TOP AND BOTTOM ADJUSTMENT TOP

ADJUSTMENT ONLY TOP AND BOTTOM ADJUSTMENT

1.4/5.5 11558 00004 51558

2/9 00018 −−

2/10 11109 00005 51109

2/10 −11004 −

2/15 11159 −−

2/18 00016 −−

2.5/20 −11006 −

2.5/22 11229 00006 51229

2.5/27 11279 −51279

3/33 11339 −−

3/40 11409 −51409

3/50 11509 −51509

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.

ELECTRICAL DATA

GUARANTEED

MAX. Cmin/

MIN. Cmax

AT 200 kHz

(pF)

SPINDLE

SHAPE

HEAD

FIG. ADJ.

MODE DIEL.

TAN δ AT

Cmax x10

-4 TEMP.

COEFF.

(10-6/K)

MIN. fres

at Cmax

(MHz)

COL.

BASE

SPQ

CATALOG

NUMBER

BFC2 ... .....

1 MHz 100 MHz

1.4/5.5 vertical round 1 top + bottom

PE ≤ 10 ≤ 25 - 250 ± 350 850 grey

1400 .... 808 11558

1 top 1400 .... 808 00004

horizontal round 2 top + bottom 1200 .... 808 51558

2/9 vertical round 1 top + bottom PTFE ≤ 10 ≤ 15 - 150 ± 800 400 yellow 1400 .... 808 00018

2/10

vertical round 1 top + bottom

PP ≤ 10 ≤ 25 - 250 ± 800 480 yellow

1400 .... 808 11109

1 top 1400 .... 808 00005

horizontal round 2 top + bottom 1200 .... 808 51109

vertical round 1 top PC ≤ 70 ≤ 100 - 150 ± 800 250 yellow 1000 .... 808 11004

2/15 vertical round 1 top + bottom PP ≤ 10 ≤ 25 - 250 ± 600 450 blue 1400 .... 808 11159

2/18 vertical round 1 top + bottom PTFE ≤ 10 ≤ 15 - 250 ± 350 350 green 1400 .... 808 00016

2.5/20 vertical round 1 top PET ≤ 160 - 0 ± 1100 250 green 1000 .... 808 11006

2.5/22 vertical round 1 top + bottom

PP ≤ 10 ≤ 25 - 200 ± 500 350 green

1400 .... 808 11229

1 top 1400 .... 808 00006

horizontal round 2 top + bottom 1200 .... 808 51229

2.5/27 vertical round 1 top + bottom PC ≤ 70 - - 50 ± 500 350 red 1400 .... 808 11279

horizontal round 2 top + bottom 1200 .... 808 51279

3/33 vertical round 1 top + bottom PP ≤ 10 - - 250 ± 350 300 brown 1400 .... 808 11339

3/40 vertical round 1 top + bottom PC ≤ 70 - - 50 ± 400 300 violet 1400 .... 808 11409

horizontal round 2 top + bottom 1200 .... 808 51409

3/50 vertical round 1 top + bottom PC ≤ 70 - - 50 ± 500 250 black 1400 .... 808 11509

horizontal round 2 top + bottom 1200 .... 808 51509

BFC2 808 .....

Ø 7.5 mm Film Dielectric Trimmers Vishay BCcomponents

Document Number 28527 For technical questions, contact: dc-film@vishay.com www.vishay.com

Revision 02-Oct-07 319

TEST PROCEDURES AND REQUIREMENTS

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: ≤ 1 % 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: ≤ 2 %

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: ≤ 0.6 %;

no mechanical damage

25 Fc vibration frequency 10 to 55 Hz;

amplitude 0.35 mm;

1.5 hours

ΔC/C: ≤ 0.6 %;

no mechanical damage

26 climatic sequence: ΔC/C: ≤ 4

26.1 B dry heat 16 hours at upper category

temperature

tan δ: ≤ 10 x 10-4 for Cmax <27pF;

tan δ: ≤ 70 x 10-4 for Cmax ≥27 pF;

tan δ: ≤ 80 x 10-4 for Cmax ≥40 pF

Rins: ≥ 10 000 MΩ;

rotor contact R: ≤ 10 mΩ

26.2 D damp heat accelerated,

first cycle

1 cycle; 24 hours; + 40 °C;

95 to 100 % RH

voltage proof:

500 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:

1to15mNm for C

max <33pF;

1to25mNm for C

max ≥33 pF

27 Ca damp heat steady state 21 days; + 40 °C;

90 to 95 % RH

ΔC/C: ≤ 5 %

tan δ: ≤ 30 x 10-4 for Cmax <27pF;

tan δ: ≤ 70 x 10-4 for Cmax ≥27 pF;

tan δ: ≤ 80 x 10-4 for Cmax ≥40 pF

Rins: ≥ 10 000 MΩ;

rotor contact R: ≤ 10 mΩ

voltage proof:

500 V for 1 minute

visual examination:

no mechanical damage

operating torque:

1to15mNm for C

max <33pF;

1to25mNm for C

max ≥33 pF

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:

1to15mNm for C

max <33pF;

1to25mNm for C

max ≥33 pF

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www.vishay.com Vishay

Revision: 02-Oct-12 1Document Number: 91000

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