Mica Dielectric Compression Trimmer Capacitors
(This bulletin is also available as a pdf file.)
FEATURES
- Very large capacitance ranges
- High Q
- Good RF current handling capability
- Many forms and mounting styles
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
(VDC)Dielectric
Withstanding
(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
- Quality Factor (Q):
- Minimum Q at 1 MHz per graph (for
units which have nominal maximum capacitance less than or equal to 1000 pF).
- Dissipation Factor:
- Maximum DF = 0.004 at 1 kHz (for
units which have nominal maximum capacitance greater than 1000 pF).
- Capacitance change with temperature
- (capacitor set at 1/4 to 1/2
turn 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 1/4 to 1/2
turn 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)
Engineering Bulletin SG-500 Contents
- Features and Specifications
- Part
Numbering System
- Types 2, 3 and 4 (175 WVDC)
and Types 6, 7 and 8 (250 WVDC)
Capacitance Range and Model Number Tables Outline Drawings and Mounting Layouts - Types 1 (250 VDC), 5
(500 VDC), and 9 (2000 VDC)
Capacitance Range and Model Number Tables Outline Drawing and Mounting Layout