Sprague-Goodman ENGINEERING BULLETIN
SG-500D
Supercedes SG-500C
• Very large capacitance ranges • Good RF current handling capability
• High Q • Many forms and mounting styles
Q vs Capacitance
(1 MHz)
1,000
100
10
1 10 100 1,000
Capacitance (pF)
Q
FEATURES
SPECIFICATIONS
Operating Temperature Range: –35°C to +85°C
Maximum Capacitance: When set at the tight
position (tight defined as 28 oz-in/2.0 kg-cm), the
maximum capacitance will be no less than the
value indicated in the table.
Minimum Capacitance: When adjusting screw is
rotated 3 turns from tight position (2 turns for types
1, 5, and 9), the minimum capacitance will be no
greater than the value indicated in the table.
Voltage: Working Dielectric Withstanding
(VDC) (VDC)
Type 1 250 500
Types 2, 3, 4 175 350
Type 5 500 1000
Types 6, 7, 8 250 500
Type 9 2000 2700
Insulation Resistance: 100,000 megohms min at 25°C
Q: Minimum Q at 1 MHz per graph (for units which
have nominal maximum capacitance ≤1000 pF).
Dissipation Factor: Maximum DF = 0.004 at 1 kHz
(for units which have nominal maximum
capacitance > 1000 pF).
Capacitance change with temperature (capacitor
set at 1/4to 1/2turn from the tight position):
Types 1, 5, 9 = ± (2.5% + 0.3 pF)
Types 2, 3, 4, 6, 7, 8 = ± (1.5% + 0.3 pF)
Capacitance drift with temperature (capacitor set
at 1/4to 1/2turn from the tight position):
Types 1, 5, 9 = ± (2.0% + 0.5 pF)
Types 2, 3, 4, 6, 7, 8 = ± (1.5% + 0.5 pF)
MICA DIELECTRIC COMPRESSION
TRIMMER CAPACITORS
Sprague-Goodman Electronics, Inc.
1700 SHAMES DRIVE, WESTBURY, NY 11590
TEL: 516-334-8700 • FAX: 516-334-8771
E-MAIL: info@spraguegoodman.com
2
MICA DIELECTRIC TRIMMER CAPACITORS SG-500D
Capacitance Range
(pF)
min max Model No.1
2.5 7 GM—20000
420GM
—20200
845GM
—20300
12 65 GM—20400
16 90 GM—20500
25 115 GM—20600
55 285 GM—20700
90 340 GM—20800
PART NUMBERING SYSTEM
GM A 2
MOUNTING STYLES
A = Bracket mount for wired
assembly
B = Printed circuit mount, top adjust,
4 terminals
C = Printed circuit mount, top adjust,
2 terminals
D = Printed circuit mount, side
adjust, 2 terminals
E = Panel mount, 1/4” long bushing
F = Panel mount, 3/16” long bushing
G = Panel mount, 9/32” long bushing
H = Panel mount, 3/16” long split
bushing
TYPE
Symbol Size (in/mm)
1 = 0.875 x 0.938 (22.2 x 23.8)
2 = 0.375 x 0.531 (9.53 x 13.5)
3 = 0.375 x 0.750 (9.53 x 19.1)
4 = 0.625 x 0.750 (15.9 x 19.1)
5 = 0.875 x 0.938 (22.2 x 23.8)
6 = 0.375 x 0.531 (9.53 x 13.5)
7 = 0.375 x 0.750 (9.53 x 19.1)
8 = 0.625 x 0.750 (15.9 x 19.1)
9 = 0.875 x 0.938 (22.2 x 23.8)
MODIFICATIONS
00 = Standard*
01 = Mica Insulated
Screw
02 = Ceramic
Insulated Screw
03 = Guide Cup for
Screw (Types 2,
3, 4, 6, 7 and 8)
04 = Guide Cup and
Mica Insulated
Screw
*Types 1, 5, and 9 are
normally supplied
with mica insulated
screw (Mod 01)
Mica Dielectric Code
00 00
Capacitance Range
(pF)
min max Model No.2
2.5 12 GM—30000
3.5 25 GM—30100
7.0 40 GM—30200
16.0 100 GM—30300
25.0 150 GM—30400
40.0 200 GM—30500
56.0 250 GM—30600
75.0 300 GM—30700
95.0 350 GM—30800
115.0 400 GM—30900
130.0 450 GM—31000
150.0 500 GM—31100
170.0 550 GM—31200
200.0 600 GM—31300
220.0 650 GM—31400
240.0 700 GM—31500
Capacitance Range
(pF)
min max Model No.3
315GM
—40000
530GM
—40100
10 80 GM—40200
20 180 GM—40300
45 280 GM—40400
75 380 GM—40500
105 480 GM—40600
140 580 GM—40700
175 680 GM—40800
215 790 GM—40900
260 900 GM—41000
300 1000 GM—41100
330 1100 GM—41200
360 1200 GM—41300
380 1300 GM—41400
420 1400 GM—41500
Types 3 and 7 Types 4 and 8
1Insert letter A, B, C, or D in blank space
for mounting style required.
For type 6, substitute 6 for 2 in the fourth
character of the catalog number.
Example: GMA20200 becomes GMA60200
2Insert letter A, B, C, or D in blank space
for mounting style required.
For type 7, substitute 7 for 3 in the fourth
character of the catalog number.
Example: GMA30200 becomes GMA70200
3Insert letter A, B, C, or D in blank space
for mounting style required.
For type 8, substitute 8 for 4 in the fourth
character of the catalog number.
Example: GMA40200 becomes GMA80200
SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 • E-MAIL: info@spraguegoodman.com
Types 2 and 6
L
W
H2
H1
0.063
1.59
G
0.172
4.37
L
W
H
F0.094
2.4
F
2
D DIA
(WHEN REQUIRED)
DIA TYP
L
W
H
B
0.188
4.76
F
0.063
1.6
E
D DIA
(WHEN REQUIRED)
B
2 F
2
B
0.078
2.0 DIA TYP
0.313
7.94
0.156
3.97
B
2
D DIA
L
W
H
SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 • E-MAIL: info@spraguegoodman.com
MICA DIELECTRIC TRIMMER CAPACITORS SG-500D
3
SPRAGUE-GOODMAN MICA DIELECTRIC TRIMMER CAPACITORS
TYPES 2, 3 and 4 (175 WVDC)
TYPES 6, 7 and 8 (250 WVDC)
Mounting Style A Mounting Style B
Mounting Style C Mounting Style D
Type L W H H1H2BDEFG
0.531 0.375 0.719 0.563 0.719 0.315 0.175 0.188 0.563 0.594
2 & 6 ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– –––––
13.5 9.53 18.3 14.3 18.3 8.00 4.45 4.76 14.3 15.1
0.750 0.375 0.781 0.625 0.625 0.315 0.175 0.188 0.813 0.781
3 & 7 ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– –––––
19.1 9.53 19.8 15.9 15.9 8.00 4.45 4.76 20.6 19.8
0.750 0.625 0.781 0.563 0.969 0.546 0.206 0.281 0.813 0.813
4 & 8 ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– ––––– –––––
19.1 15.9 19.8 14.3 24.6 13.9 5.23 7.14 20.6 20.6
Dimensions are in/mm.
SUGGESTED HOLE LAYOUT
FOR MOUNTING BRACKET SUGGESTED PRINTED
CIRCUIT LAYOUT
SUGGESTED PRINTED
CIRCUIT LAYOUT
SUGGESTED PRINTED
CIRCUIT LAYOUT
SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 • E-MAIL: info@spraguegoodman.com
©1999 SPRAGUE-GOODMAN ELECTRONICS, INC., ALL RIGHTS RESERVED. PRINTED IN U.S.A. 59903
MICA DIELECTRIC TRIMMER CAPACITORS SG-500D
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SPRAGUE-GOODMAN MICA DIELECTRIC TRIMMER CAPACITORS
TYPES 1, 5 and 9
Working Voltage: 250 VDC
Test Voltage: 500 VDC
Capacitance Range
(pF)
min max Model No.4
15 130 GM—10201
65 340 GM—10301
115 550 GM—10401
190 760 GM—10501
275 970 GM—10601
350 1180 GM—10701
450 1390 GM—10801
550 1600 GM—10901
650 1890 GM—11001
780 2110 GM—11101
880 2330 GM—11201
1150 2605 GM—11301
1300 2830 GM—11401
1400 3055 GM—11501
Type 1
4Insert letter E, F, G or H in blank space for mounting style (Style H not available in Type 9).
Model numbers are shown with the “01” modification, calling for a mica insulated screw,
which is the way types 1, 5, and 9 are normally supplied.
Working Voltage: 500 VDC
Test Voltage: 1000 VDC
Capacitance Range
(pF)
min max Model No.4
15 120 GM—50201
65 320 GM—50301
100 500 GM—50401
180 690 GM—50501
265 880 GM—50601
340 1070 GM—50701
425 1260 GM—50801
525 1415 GM—50901
615 1600 GM—51001
730 1785 GM—51101
800 1970 GM—51201
1000 2155 GM—51301
1100 2340 GM—51401
1200 2525 GM—51501
Type 5
Working Voltage: 2000 VDC
Test Voltage: 2700 VDC
Capacitance Range
(pF)
min max Model No.4
10 48 GM—90201
45 105 GM—90301
70 160 GM—90401
95 230 GM—90501
100 270 GM—90601
170 350 GM—90701
190 380 GM—90801
250 480 GM—90901
Type 9
Special
Style L A (Thread) Feature
0.250
E ––––– #12 - 40 UNS - 2 None
6.35
0.188
F ––––– 1/4- 40 UNS- 2 None
4.76
0.281
G ––––– 1/4- 40 UNS- 2 None
7.14
0.188
H ––––– 1/4- 40 UNS- 2 Split Bushing
4.76
Dimensions are in/mm.
0.203
5.16 TYP
+
+0.016
0.40
0.406
10.3
+
+0.031
0.79
0.156
3.97
X0.063
1.59
0.938
23.8
+
+0.031
0.79
TYP
X
0.875
22.2
+
+0.031
0.79
0.500
13.0 L
0.031
0.79
+
+0.016
0.40
MAX
0.281
7.14
+
+0.031
0.79
L
0.188
4.76
0.125
3.18
HEX NUT
A THD
SPLIT BUSHING DETAIL
0.156
3.97
+
+0.016
0.40
0.344
8.73
+
+0.016
0.40
