ELECTRONIC FILM CAPACITORS, INC.
Reidville Industrial Park * 41 Interstate Lane
WATERBURY, CONNECTICUT 06705
PHONE (203) 755-5629
FAX (203) 755-0659
POLYSTYRENE and FOIL
SERIES 1906
EFC Series 1906 are polystyrene and foil capacitors. This series offers the advantage of
extremely high insulation resistance (IR), low dissipation factor and very low dielectric
absorption. 1906 have a linear negative temperature coefficient. Applications include:
timing circuits and filters. Packaging options include: wrap and fill (TC), radial lead box
(EFR), axial lead (EC, EF). Application options: -120 PPM/
0
C temperature coefficient
(T1906), -80 PPM/
0
C temperature coefficient (A1906).
SPECIFICATIONS
1. TEMPERATURE RANGE
- 55
O
C to + 85
O
C at rated voltage.
4. INSULATION RESISTANCE
At 25
O
C after 2 minutes charge time at rated voltage
or 500 VDC, whichever is less, the minimum IR shall
be 500,000 Megohm-Microfarads, but need not exceed
1,000,000 Megohms.
2. CAPACITANCE
Capacity shall be measured at 1KHz +20 HZ.
Measurements shall be taken at 25
0
C.
3. DIELECTRIC STRENGTH
At 25
O
C, 200% of rated voltage when applied
terminal to terminal for one minute through a
current limiting resistance.
NS
SIG
DE
EW
N
OR
TF
NO
5. HUMIDITY RESISTANCE
Series 1906 shall meet the requirements
of MIL-STD. 202C, Method 103B.
6. DISSIPATION FACTOR
Shall be 0.1 % max. when measured as in Par. 2.
7. LIFE TEST
Will withstand the application of 140% rated voltage at +85
0
C for 250 hours
with not more than one failure in 12 permitted.
TYPICAL TEMPERATURE CURVES
POLYSTYRENE and FOIL
CAPACITANCE CHANGE VS. TEMPERATURE
+.75
% CAPACITANCE CHANGE
+.50
+.25
0
-.25
-.50
-.75
-55
% DISSIPATION FACTOR
.06
DISSIPATION FACTOR VS. TEMPERATURE
.04
.02
0
-25
0
25
50
Temperature (
O
C)
85
105
-55
-25
0
25
50
Temperature (
O
C)
85
105
IR (MEGOHMS X Ufd.)
10
10
10
7
INSULATION RESISTANCE VS. TEMPERATURE
6
5
4
10
3
10
+25
+50
+85
+105
Temperature (
O
C)
CATALOG NOMENCLATURE
* 1906 TC - 3 - .001 - 1 - 5
CASE CODE
TC - WRAP & FILL - ROUND - AXIAL
TF - WRAP & FILL - FLAT - AXIAL
EC - EPOXY CASE - ROUND - AXIAL
EF - EPOXY CASE - FLAT - AXIAL
EFR - EPOXY CASE - FLAT - RADIAL
CAPACITANCE
IN MICROFARADS (µF)
µ
SIZE CODE
3 - STANDARD
2 - MINIATURE
1 - SUBMINIATURE
X - NON-STANDARD
FOR EFC METRIC CASES USE THE
ONE LETTER CASE CODE LISTED.
FOR EFC "EC" STYLE USE THE
TWO LETTER CASE CODE.
VOLTAGE
.35 - 35 VDC
0 - 50 VDC
1 - 100 VDC
2 - 200 VDC
3 - 300 VDC
4 - 400 VDC
ETC.
DIELECTRIC CODE
1206 - POLYPROPYLENE/FOIL
1213 - METALLIZED POLYPROPYLENE
1306 - POLYESTER/FOIL
1313 - METALLIZED POLYESTER
1606 - POLYCARBONATE/FOIL
1613 - METALLIZED POLYCARBONATE
1906 - POLYSTYRENE/FOIL
TOLERANCE
1 - 1%
2 - 2%
5 - 5%
ETC.
* OPTIONS
THE FOLLOWING OPTIONS ARE AVAILABLE FROM EFC BY SPECIFYING THE APPROPRIATE PREFIX.
TEMPERATURE COEFFICIENTS:
Different T.C.'s are available in both Polypropylene and Polystyrene dielectrics. T.C.'s and the appropriate prefixes
are as follows:
A1206
T1206
01906
A1906
T1906
=
=
=
=
=
-150 PPM/
O
C +30 PPM
-270 PPM/
O
C +30 PPM
ZERO PPM/
O
C +50 PPM
-80 PPM/
O
C +30 PPM
-120 PPM/
O
C +30 PPM
HIGH VOLTAGE:
EFC high voltage metallized polyester capacitors are designed for use in high voltage power supplies,
rectifiers and other similar circuits. Voltage ratings to 15,000 DC are common-place at EFC.
Specify with the prefix
HV.
AC CURRENT:
Specify metallized polyester and termination procedures to enable EFC to supply a small sized
AC
rated
capacitor for general purpose use at 60 HZ. Specify with the prefix
AC.
HIGH AMPERAGE AND PULSE CURRENTS:
Dual metallized carriers allow these capacitors to handle high amperage and pulsing currents.
Available in both polyester and polypropylene dielectrics. Specify with the prefix
MF.
Contact the factory for an
MF
spec. sheet.
SWITCH MODE POWER SUPPLY:
Polypropylene and polyester capacitors designed for SMPS have low ESR and high current rating should
be specified with the
SP
prefix.
EFC will manufacture to any non-standard value and size. Please consult factory for special requirements.
1.625"
Min.
<
><
+
L _.050"
>
1906TC
EFC
1906TC
(All dimensions in inches)
_
D + .050"
Polystyrene
and Foil
Capacitors
Cap.
µ
F
.001
.0012
.0015
.0022
.0027
.0039
.0047
.0056
.0068
.0082
.01
.012
.015
.018
.022
.027
.033
.039
.047
.056
.068
.082
.1
.12
.15
.18
.22
.27
.33
.39
.47
.56
.68
.82
1.0
1.25
1.5
Tubular
Wrap and Fill
Lead Specs.
Tinned Copperweld
Under .250D = 24 AWG
.250 - .440D = 22 AWG
Above .440D = 20 AWG
DIMENSIONS and RATINGS
1906TC-2
50 VDC
D
L
.160
.160
.160
.160
.160
.190
.200
.220
.240
.180
.190
.210
.230
.250
.280
.250
.270
.300
.320
.350
.340
.370
.410
.440
.440
.480
.530
.500
.550
.590
.650
.620
.690
.750
.750
.840
.920
.406
.406
.406
.406
.406
.406
.406
.406
.406
.531
.531
.531
.531
.531
.531
.656
.656
.656
.656
.656
.781
.781
.781
.781
.906
.906
.906
1.190
1.190
1.190
1.190
1.440
1.440
1.440
1.690
1.690
1.690
1906TC-3
100 VDC
D
L
.180
.180
.180
.180
.180
.210
.220
.240
.180
.200
.220
.230
.260
.280
.250
.280
.300
.330
.310
.340
.370
.410
.400
.440
.490
.450
.500
.550
.610
.590
.640
.700
.690
.760
.840
.930
1.020
.406
.406
.406
.406
.406
.406
.406
.406
.531
.531
.531
.531
.531
.531
.656
.656
.656
.656
.781
.781
.781
.781
.906
.906
.906
1.190
1.190
1.190
1.190
1.440
1.440
1.440
1.690
1.690
1.690
1.690
1.690
1906TC-3
200 VDC
D
L
.180
.180
.180
.220
.240
.190
.210
.230
.250
.270
.300
.260
.290
.320
.350
.340
.370
.400
.440
.430
.470
.510
.480
.530
.580
.640
.620
.680
.750
.740
.810
.890
.980
.406
.406
.406
.406
.406
.531
.531
.531
.531
.531
.531
.656
.656
.656
.656
.781
.781
.781
.781
.906
.906
.906
1.190
1.190
1.190
1.190
1.440
1.440
1.440
1.690
1.690
1.690
1.690
1906TC-3
400 VDC
D
L
.230
.250
.170
.200
.220
.260
.280
.240
.270
.290
.320
.350
.340
.370
.400
.390
.430
.470
.510
.470
.520
.570
.630
.600
.670
.730
.730
.810
.890
.970
1.060
.406
.406
.531
.531
.531
.531
.531
.656
.656
.656
.656
.656
.781
.781
.781
.906
.906
.906
.906
1.190
1.190
1.190
1.190
1.440
1.440
1.440
1.690
1.690
1.690
1.690
1.690
1906TC-3
600 VDC
D
L
.240
.260
.290
.250
.270
.320
.350
.320
.350
.390
.370
.400
.450
.490
.450
.500
.550
.590
.650
.610
.670
.740
.730
.800
.890
.970
1.070
.531
.531
.531
.656
.656
.656
.656
.781
.781
.781
.906
.906
.906
.906
1.190
1.190
1.190
1.190
1.190
1.440
1.440
1.440
1.690
1.690
1.690
1.690
1.690
NS
IG
ES
D
EW
N
OR
TF
NO
ELECTRONIC FILM CAPACITORS, INC.
Reidville Industrial Park * 41 Interstate Lane * WATERBURY, CONNECTICUT 06705
Phone (203) 755-5629
FAX (203) 755-0659
EFC will manufacture to any non-standard value and size. Please consult factory for special requirements.
<
>
1.625"
Min.
<
><
+
L _.050"
>
1906EC
EFC
1906EC
(All dimensions in inches)
_
D + .010"
Epoxy Case
(Axial Leads)
Lead Specs.
Tinned Copperweld
Under .250D = 24 AWG
.250 - .440D = 22 AWG
Above .440D = 20 AWG
Polystyrene
and Foil
Capacitors
Cap.
µ
F
.001
.0012
.0015
.0022
.0027
.0039
.0047
.0056
.0068
.0082
.01
.012
.015
.018
.022
.027
.033
.039
.047
.056
.068
.082
.1
.12
.15
.18
.22
DIMENSIONS and RATINGS
1906EC
50 VDC
D
L
1
1
1
2
2
1
1
2
2
2
2
3
3
3
4
4
4
4
5
5
5
5
6
6
7
7
7
A
A
A
A
A
B
B
B
B
B
B
B
C
C
C
C
C
D
D
D
D
E
E
E
E
F
F
1906EC
100 VDC
D
L
1
1
1
2
2
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
7
7
7
A
A
A
A
A
B
B
B
B
B
B
C
C
C
D
D
D
D
D
D
E
E
E
E
F
F
1906EC
200 VDC
D
L
2
2
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
6
6
7
6
7
A
A
A
B
B
B
B
C
C
C
C
C
D
D
D
D
E
E
E
E
F
F
1906EC
400 VDC
D
L
1
2
2
3
3
3
3
4
4
4
4
5
5
5
6
6
7
7
7
B
B
B
B
B
C
C
C
C
D
D
D
D
E
E
E
E
F
F
1906EC
600 VDC
D
L
2
2
3
4
4
4
5
5
5
6
6
6
6
7
7
C
C
C
C
C
D
D
D
E
E
F
F
F
F
F
NS
SIG
DE
EW
N
OR
TF
NO
DIAMETER
5 = .375
1 = .187
6 = .437
2 = .225
7 = .500
3 = .250
4 = .312
<
>
LENGTH
SIZE CODE
A = .375
B = .500
C = .625
D = .750
E = .875
F = 1.190
ELECTRONIC FILM CAPACITORS, INC.
Reidville Industrial Park * 41 Interstate Lane * WATERBURY, CONNECTICUT 06705
Phone (203) 755-5629
FAX (203) 755-0659
EFC will manufacture to any non-standard value and size. Please consult factory for special requirements.
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