SAHA MICA CAPACITORS Quick Reference Guide

SAHA DESIGNATION DM 05 DM 10 DM 12 DM 15

MIL STYLE - Discontinued - CM 04 - CM 05

CAPACITANCE RANGE pF 1 to 390 1 to 390 1 to 2500 1 to 1200

MAXIMUM 50 V DC 390 820 - 2500
CAPACITANCE 100 V DC 200 390 2500 2000
IN pF IN THE 300 V DC 120 360 820 2000
RATED 500 V DC - 250 430 750
VOLTAGE 1000 V DC* - - - -
INDICATED
MAXIMUM L 0.270 0.390 0.413 0.490
NOMINAL W 0.250 0.380 0.433 0.420
DIMENSIONS IN T 0.190 0.220 0.220 0.240
INCHES B 0.120 0.141 0.200 0.234
MAXIMUM L 6.86 9.91 10.49 12.45
NOMINAL W 6.35 9.65 11.00 10.67
DIMENSIONS IN T 4.83 5.59 5.59 6.10
mm B 3.05 3.58 5.08 5.94

SAHA DESIGNATION DM 19 DM 20 DM 30 DM 42

MIL STYLE - Discontinued CM 06 - CM 07 -

CAPACITANCE RANGE pF 1 to 8200 680 to 12,000 5100 to 20,000 16000 to 82000

MAXIMUM 50 V DC - - - -
CAPACITANCE 100 V DC 8200 12000 - 82000
IN pF IN THE 300 V DC 6800 12000 20000 68000
RATED 500 V DC 5100 10000 20000 51000
VOLTAGE 1000 V DC* 4700 - 12000 30000
INDICATED
MAXIMUM L 0.710 0.820 0.830 1.470
NOMINAL W 0.590 0.630 0.920 0.920
DIMENSIONS IN T 0.370 0.450 0.450 0.450
INCHES B 0.344 0.438 0.438 1.063
MAXIMUM L 18.03 20.83 21.08 37.34
NOMINAL W 14.99 16.00 23.37 23.37
DIMENSIONS IN T 9.40 11.43 11.43 11.43
mm B 8.74 11.13 11.13 27.00

SAHA

Designation M - 6 M - 12

Capacitance
Range in pF 22 - 68 82 - 220

Maximum
Capacitance in 68 220
the rated voltage
350 VDC

SAHA

Designation M - 37 M - 50

Capacitance
Range in pF 270 - 560 680 - 10000

Maximum
Capacitance in 560 10000
the rated voltage
350 VDC

SAHA Designation MMR B - 1 MMR B - 2 MMR L - 1 MMR E - 1 MMR E - 2

Capacitance Range (pF) 4 - 1,500 750 - 2,500 4 - 1,500 4 - 6,000 4,001 - 10,000

Maximum 100 V DC 1,500 1,500 1,500 6,000 10,000
Capacitance in 350 V DC 750 1,500 750 4,000 7,500
the rated voltage 750 V DC - - - - -

SAHA Designation MMR A - 1 MMR A - 2 MMR A - 3 MMR A - 4 MMR S - 1

Capacitance Range (pF) 4 - 7,500 4 - 15,000 2,001 - 27,000 3,501 - 40,000 4 - 60,000

Maximum 100 V DC 7,500 15,000 27,000 40,000 60,000
Capacitance in 350 V DC 5,000 10,000 15,000 20,000 50,000
the rated voltage 750 V DC 1,000 2,000 3,500 5,000 -

SAHA Designation MMA 10 MMA 15 MMA 20 MMA 30

Capacitance Range (pF) 10 - 5,100 10 - 1,000 10 - 2,700 560 - 43,000

Maximum 300 V DC 5,100 - - 43,000
Capacitance in 500 V DC 380 1,000 2,700 30,000
the rated voltage - - - -

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MICA CAPACITORS

MICA CAPACITORS

Quick Reference Guide

DM Series General Specifications by Case Size

330 - 430

M Series
General Specifications

(Formerly Sold as

RS Components 124-XXX series)

1

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MMR & MMA Series General Specifications
MMR Series (Equivalent to: ASHCROFT (GB) and JAHRE (D) Molded Radial)

MMA Series (Equivalent to: ASHCROFT (GB) and JAHRE (D) Molded Axial)

* Available as special part.

MICA CAPACITOR - PART NUMBERING SYSTEM

Sample Part Number: DM05FA151J-CA Description: DM05 Series, 150pF, 100 Volt, 5% in Ammo Pack, Inside Crimped.

D M 0 5 F A 1 5 1 J O 3 - S A - R 0 2

Series

Enter Series Code: (up to 4 Characters)
Series included: DM05, DM10, DM12, DM15,
DM19, DM20, DM30, DM42.

Characteristic

Enter characteristic code: ( 1 Character)

Temperature

Characteristic Coefficient Capacitance

Letter PPM/C Drift

C -200 to +200 ± (0.5% + 0.1pF)
D -100 to +100 ± (0.3% + 0.1pF)

E -20 to +100 ± (0.1% + 0.1pF)
F 0 to +70 ± (0.05% + 0.1pF)

see catalog for individual part characteristic code

Rated Voltage

Enter voltage code: (1 character)

Rated Voltage Code Rated Voltage Code

Letter Code Volts DCW Letter Code Volts DCW

Y 50 E 350
A 100 D 500

C 300 F* 1000*

* Note: Not for use in snubber applications

Capacitance

Enter EIA Capacitance Code: (3 Digits)
First Two Digits represents significant figures of capacitance in Picofarads.
Third Digit indicates number of zeros to follow.

Example: 10pF = 100, 100pF = 101, 1000pF = 102

Tolerance

Enter Capacitance Tolerance Code: ( 1 Character)

Tolerance Code D ± 0.5pF H ± 3 %

E ± 0.5 % J ± 5 %
F ± 1 % K ± 10 %

G ± 2 %

Temperature Range

Code O = -55 to +125 C

Vibration Grade

Standard Grade = 3
(see catalog for details)

Marking

S = Saha

Package Type

Bulk < Blank >
Ammo Pack A
Tape & Reel T

Special Specifications

C Cut followed by 2 Digit specification code 01 -99
R Crimped followed by 2 Digit specification code 01 -99

P Cut & Crimped followed by 2 Digit specification code 01 -99
Examples: C 0 2 = cut leads to 0.175 mm P 0 2 = cut leads to 0.175 mm and inside crimp
(See Special Specifications Sheet) Rev D - 2/99

MICA CAPACITORS

Part Marking

TYPE 1- Capacitance in pF,

150 ± 5%

500V

SAHA

tolerance in percentage or +/­pF and voltage(Vdc) are indi­cated in numbers along with
the brand marking. Brand
marking of “SAHA”, “S” or
“KEC” are common. Parts are
also supplied with no brand

TYPE 1

marking in some cases based
on product availability and
customer requirements.

Tel: [phone] Fax: [phone] SUSCO Engineers & Buyers Guide - Mica Section 2

CM 05 FD

151JO3

SAHA

TYPE 2

TYPE 2 - Formerly for
Military certified Capacitors.
The CM series code has
been discontinued.

151J or

150 pF

+/- 5%

TYPE 3

TYPE 3 - Capacitance in
EIA capacitance code
(as in Type 2) and toler­ance with tolerance code
or capacitance value in
pF with tolerance in +/­% or +/- pF are marked
on the capacitors.
Voltage is not marked on
the part. Brand marking
is optional.

MICA CAPACITORS

PERFORMANCE CHARACTERISTICS

GENERAL SPECIFICATIONS FOR SAHA MICA CAPACITORS

The SAHA Mica capacitors meet the required commercial specifications and the EIA
requirements. The CMO series capacitors also meet the military specifications MIL-C-5. The
actual specifications and dimensions of the capacitors are mentioned under each series in
the catalog.

CAPACITANCE

The capacitance of mica capacitors is measured at 1 M Hz ±10% for capacitance values up
to 1000 pF and at 1 K Hz ±10% for capacitance values above 1000 pF. The capacitance
value when measured at 25 °C shall be with in the tolerance specified.

DISSIPATION FACTOR

The dissipation factor for mica capacitors are measured at 1MHz for values up to 1000 pF
and at 1 KHz for values above 1000 pF. The values shall remain within the specified values.
The variation pattern of dissipation factor for different values of capacitance are also shown
in the Figure 3.

INSULATION RESISTANCE

The insulation resistance is measured at 50 ±5 V for capacitors with rated voltage of 50 V
DC and at 100 ±10 V for capacitors with higher voltage rating. The insulation resistance thus
measured at 25 °C shall meet the specified limits. The variation of insulation resistance for
different capacitance values at 25 °C is shown in Figure 1. After certain tests listed below
the insulation resistance value changes and these values are plotted in Figure 2. Figure 4
indicates the variation pattern of insulation resistance with capacitance value at different
temperature conditions.

WITHSTANDING VOLTAGE

The mica capacitors are designed to withstand higher voltage than the rated voltage for
limited time. These capacitors shall withstand 200% of the rated voltage for 1 to 5 seconds
when applied with a limiting surge current value of 50 mA.

VIBRATION GRADE

The capacitors shall be subjected to a harmonic motion having an amplitude of 1.5 mm and
the frequency which is varied between the limits of 10 and 55 Hz. The entire frequency
range from 10 to 55 Hz and then back to 10 Hz shall be traversed in approximately 1 minute
and the motion shall be applied for a period of 1hour in each of the three mutually
perpendicular directions. After testing, when the electrical measurements are performed:

1. The insulation resistance shall be more than 30000 M Ohms for capacitance value up to
10000 pF. Please refer to Figure 2 for acceptable variation pattern for Insulation

Resistance for values above 10000 pF.

2. The dissipation factor shall be within the original specified limits. Please also refer to
Figure 3 for variation pattern of dissipation factor with respect to capacitance value.

3. The capacitance change shall not exceed ±1% or ±1 pF whichever is greater.

FIGURE 1

FIGURE 2

FIGURE 3

FIGURE 4

SOLDERING HEAT RESISTANCE

Both leads of the capacitors shall be immersed in molten solder at a temperature of 270
°C for 3 to 4 seconds. After the test the capacitors shall meet the initial requirements of the
Withstanding voltage and the Capacitance change shall not exceed ± 0.55 or ±1 pF.

MOISTURE RESISTANCE

Capacitors shall be subjected to a temperature of 40 ±2 °C at 90 to 95 % relative humidity
for 240 ±8 Hours. After the test:

1. The samples shall meet the after test requirement of Insulation resistance values as
furnished in Figure 2.

2. The dissipation factor shall be within 1.5 times the original specified limits. Please also
refer to Figure 3 for variation pattern of dissipation factor with respect to capacitance

value for original limits.

3. The capacitance change shall not exceed ±3% or ±1 pF whichever is greater.

MOISTURE RESISTANCE LOADING

Capacitors shall be subjected to a temperature of 40±2 °C at 90 to 95% relative humidity
with rated voltage for 500 Hours. After the test the samples are maintained at normal
temperature and relative humidity for a period of 4 to 24 hours. When tested after this;

1. The capacitor samples shall be free of cracks, or other mechanical damages and the
marking shall remain legible

2. The samples shall meet the original requirement of the Withstanding voltage

3. The samples shall meet the after test requirement of Insulation resistance as furnished in
Figure 2

4. The dissipation factor shall be within 2 times the original limits

5. The capacitance change shall not exceed ±5% or ±1 pF

3

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FIGURE 5

MICA CAPACITORS

MOISTURE RESISTANCE LOADING

Capacitors shall be subjected to a temperature of 40±2 °C at 90 to 95% relative humidity
with rated voltage for 500 Hours. After the test the samples are maintained at normal
temperature and relative humidity for a period of 4 to 24 hours. When tested after this;

1. The capacitor samples shall be free of cracks, or other mechanical damages and the
marking shall remain legible

2. The samples shall meet the original requirement of the Withstanding voltage

3. The samples shall meet the after test requirement of Insulation resistance as furnished in
Figure 2

4. The dissipation factor shall be within 2 times the original limits

5. The capacitance change shall not exceed ±5% or ±1 pF

LIFE TEST

The capacitor samples shall be subjected to a temperature of 125 °C with 150% of rated
voltage for 2000 hours.
After the test :

1. The capacitor samples shall be free of cracks, or other mechanical damages and the
marking shall remain legible

2. The samples shall meet the original requirement of the Withstanding voltage

3. The samples shall meet the original requirements of Insulation resistance as furnished in
Figure 1.

4. The dissipation factor shall be within 1.5 times the original limits

5. The capacitance change shall not exceed ±3% or ±1 pF(whichever is greater) for
characteristic "C" and ±2.5 ±1pF (whichever is greater) for characteristic D, E and F.)

OTHER TYPICAL VARIATION PATTERNS

Some typical variation patterns for selected values during heat resistance load life test and
moisture proof load life tests as listed below are illustrated in Figures 8 through 10.

1. Insulation resistance Vs. time for heat resistance load life test and moisture proof load life
tests (Figure 8).

2. Capacitance change in percentage Vs. time (Figure 9).

3. Dissipation factor Vs. time (Figure 10).

FIGURE 6

FIGURE 7

FIGURE 8

Other variation patterns and characteristic for selected values as listed below are furnished
as Figures 11 through 14

1. Capacitance change Vs. frequency (Figure 11)

2. Capacitance change Vs. time(Figure 12)

3. Dissipation factor change Vs. frequency(Figure 13)

4. Insulation resistance Vs. temperature (Figure 14)

FIGURE 9

FIGURE 10

FIGURE 11

FIGURE 12 FIGURE 13 FIGURE 14

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4

MICA CAPACITORS

Dimension CASE CODE

DM05 DM10 DM12 DM15 DM19 DM20 DM30 DM42

B 3.05 3.57 5.00 5.95 8.73 11.11 11.11 26.99

± 0.8 ± 0.8 ± 0.8 ± 0.8 ± 0.8 ± 0.8 ± 0.8 ± 0.8

C 0.40 0.40 0.50 0.60 0.80 0.80 1.00 1.00

Dimension CASE CODE

DM05 DM10 DM12 DM15 DM19 DM20 DM30 DM42

B 0.120 0.141 0.197 0.234 0.344 0.438 0.438 1.063

± 0.031 ± 0.031 ± 0.031 ± 0.031 ± 0.031 ± 0.031 ± 0.031 ± 0.031

C 0.016 0.016 0.020 0.025 0.032 0.032 0.04 0.04

#26 #26 #24 #22 #20 #20 #18 #18

Case Capacitance Range in pF Equivalent

Size Standard MIL MIL Series

DM05 1 to 390 - None
DM10 1 to 820 1 to 390 CM 04
DM12 1 to 2,500 - None
DM15 1 to 2,500 1 to 390 CM 05
DM19 100 to 8,200 430 to 4,700 CM 06
DM20 680 to 12,000 - None
DM30 5,100 to 20,000 5,100 to 20,000 CM 07
DM42 16,000 to 82,000 - None

DMSERIES

INTRODUCTION

SAHA Mica capacitors have been designed to meet the exacting physical, electrical and environmental
requirements of the MIL-C-5 and RS-153 specifications. Careful selection of raw materials, starting with the
finest available grade of India Ruby Mica, and the constant monitoring of all equipment and processes,
provides an overall uniform level of quality consistent with today's most sophisticated electronic equipment.
Ideal for Tuning, Timing, Filtering and Coupling Circuits.

FEATURES

Low loss and high stability

•

Available in very close tolerances

•

Suitable for precision applications

•

Wide range of operating temperature

•

GENERAL SPECIFICATIONS
CAPACITANCE RANGE: 1 pF to 82,000 pF VOLTAGE RATING: 50 V DC to 500 V DC (Higher voltage capacitors can also be custom

made) TEMPERATE RATING: - 40 to + 150 °C CASE SIZES: DM 05 to DM 42 INSULATION RESISTANCE: 100,000 M Ohms minimum at
25°C for capacitance up to 10,000 pF. Please refer to characteristic curve for values above the range. DISSIPATION FACTOR <0.1% at
1 M Hz for values between 100 to 1,000 pF <0.2 at 1K Hz for values above 1,000 pF. Please refer to characteristic curve for values above
the range.

LIFE TEST DETAILS:

Capacitors shall withstand 1.5 times the rated DC voltage at 125 °C for 2000 hours. After the test:

1. Capacitance change shall not exceed 1% of the initial value or 1 pF, which ever is greater.

2. Dissipation Factor shall be within 1.5 times the original limits.

3. Insulation Resistance shall meet the initial specified requirements.

4. There shall be no remarkable change in the appearance and the marking shall remain legible.

DIMENSIONS:

LL = 31.75 mm (1.25”) min.

CASE SIZE Vs. CAPACITANCE RANGE

LEAD DIMENSIONS IN MILLIMETERS

LL" = 30 mm min.
Dimension "R" = 2.0 mm max. for DM 05 TO DM 15 and 3.2 mm max. for DM 19 to DM 42

LEAD DIMENSIONS IN INCHES

LL" = 1.25" min.
Dimension "R" = 0.078" max. for DM 05 TO DM 15 and 0.125"max. for DM 19 to DM 42

5

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CAPACITANCE VOLTAGE

VALUE in pF 300 V DC 100 V DC 50 V DC

Lmax. W max. T max Lmax. W max. T max Lmax. W max. T max

1 - 12 C 6.86 4.83 2.79

15 C 6.86 4.83 3.05
18 - 20 C 6.86 5.08 3.05
22 - 24 C 6.86 5.08 3.05 6.86 4.83 3.05

27 E 6.86 5.08 3.30 6.86 4.83 3.05
30 - 33 E 6.86 5.08 3.30 6.86 5.08 3.05

36 E 6.86 5.33 3.30 6.86 5.08 3.05

39 E 6.86 5.33 3.30 6.86 5.08 3.05 6.86 4.83 3.05

43 E 6.86 5.33 3.56 6.86 5.08 3.05 6.86 4.83 3.05

47-51 E 6.86 5.33 3.56 6.86 5.08 3.30 6.86 4.83 3.05

56 E 6.86 5.59 3.81 6.86 5.08 3.30 6.86 4.83 3.05

62 E 6.86 5.59 3.81 6.86 5.33 3.30 6.86 5.08 3.05

68 E 6.86 5.59 3.81 6.86 5.33 3.56 6.86 5.08 3.05
75 - 82 E 6.86 5.84 4.06 6.86 5.33 3.56 6.86 5.08 3.05

91 F 6.86 5.84 4.32 6.86 5.33 3.56 6.86 5.08 3.30

100 - 110 F 6.86 6.10 4.57 6.86 5.59 3.81 6.86 5.08 3.30

120 F 6.86 6.35 4.83 6.86 5.59 4.06 6.86 5.08 3.30
130 F 6.86 5.84 4.06 6.86 5.33 3.30

150 F 6.86 5.84 4.32 6.86 5.33 3.56
160 F 6.86 5.84 4.32 6.86 5.33 3.56

170 - 180 F 6.86 6.10 4.57 6.86 5.33 3.56

200 F 6.86 6.35 4.83 6.86 5.59 3.81
220 F 6.86 5.59 3.81

240 F 6.86 5.59 4.06
270 F 6.86 5.84 4.06
300 F 6.86 5.84 4.32

330 - 360 F 6.86 6.10 4.57

390 F 6.86 6.35 4.83

Characteristics

CAPACITANCE

VOLTAGE

VALUE in pF 300 V DC 100 V DC 50 V DC

Lmax. W max. T max Lmax. W max. T max Lmax. W max. T max

1 - 12 C 0.270 0.190 0.110

15 C 0.270 0.190 0.120
18 - 20 C 0.270 0.200 0.120
22 - 24 C 0.270 0.200 0.120 0.270 0.190 0.120

27 E 0.270 0.200 0.130 0.270 0.190 0.120
30 - 33 E 0.270 0.200 0.130 0.270 0.200 0.120

36 E 0.270 0.210 0.130 0.270 0.200 0.120

39 E 0.270 0.210 0.130 0.270 0.200 0.120 0.270 0.190 0.120

43 E 0.270 0.210 0.140 0.270 0.200 0.120 0.270 0.190 0.120

47-51 E 0.270 0.210 0.140 0.270 0.200 0.130 0.270 0.190 0.120

56 E 0.270 0.220 0.150 0.270 0.200 0.130 0.270 0.190 0.120

62 E 0.270 0.220 0.150 0.270 0.210 0.130 0.270 0.200 0.120

68 E 0.270 0.220 0.150 0.270 0.210 0.140 0.270 0.200 0.120
75 - 82 E 0.270 0.230 0.160 0.270 0.210 0.140 0.270 0.200 0.120

91 F 0.270 0.230 0.170 0.270 0.210 0.140 0.270 0.200 0.130

100 - 110 F 0.270 0.240 0.180 0.270 0.220 0.150 0.270 0.200 0.130

120 F 0.270 0.250 0.190 0.270 0.220 0.160 0.270 0.200 0.130
130 F 0.270 0.230 0.160 0.270 0.210 0.130

150 F 0.270 0.230 0.170 0.270 0.210 0.140
160 F 0.270 0.230 0.170 0.270 0.210 0.140

170 - 180 F 0.270 0.240 0.180 0.270 0.210 0.140

200 F 0.270 0.250 0.190 0.270 0.220 0.150
220 F 0.270 0.220 0.150

240 F 0.270 0.220 0.160
270 F 0.270 0.230 0.160
300 F 0.270 0.230 0.170

330 - 360 F 0.270 0.240 0.180

390 F 0.270 0.250 0.190

Characteristics

DM 05 Mica Capacitors

MICA CAPACITORS

DIMENSIONS:

LL = 31.75 mm (1.25”) min.

DM05

Case

Dimensions

in Millimeters

Lead Spacing:

3.05 ± 0.8mm

DM05

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Dimensions

Lead Spacing:

0.120 ± 0.031”

Case

in Inches

6