CERAMIC DIELECTRIC TRIMMER CAPACITORS
SG-305K
SURFTRIM® SURFACE MOUNT
CONSTRUCTION DETAILS OF 4 x 4.5 mm GKG MODELS
Sealed Construction
Model GKG __ __ __ 27 Shown
• Special “drive assembly” with
pointed spring fingers to engage rotor
upper surface contour. Spring fingers
also provide proper tension for smooth
torque and low resistance.
FEATURES
• Process seal provides protection against contaminants (flux, solvents, etc.) during production.
• Special rotor with die-formed “drive”
contour on upper surface.
• Designed for flow and reflow soldering.
• Available in carrier and reel packaging.
• Flat-lapped and lubricated surfaces
join for reliable capacitance settings.
SPECIFICATIONS
• Special ceramic stator insert
with metalized electrode.
Operating Temperature Range: –25°C to +85°C
Voltage Rating: 100 VDC
Dielectric Withstanding Voltage: 220 VDC
Insulation Resistance: 10 4 Megohms min
Torque: 15 to 100 g-cm (0.2 to 1.39 oz-in)
• Solid one-piece housing with integrally
molded terminals and contact areas.
Central tubular column is spun-out
into a flare after assembly to maintain
built-in spring tension.
4 x 4.5 x 2.7 mm Models
Capacitance
(pF)
*min
max
1.4
3.0
2.0
6.0
3.0
10.0
4.5
20.0
6.5
30.0
15.0
50.0
TCC
(ppm / °C)
0 ± 200
0 ± 200
0 ± 300
N900 ± 300
N1100 ± 450
N1700 ± 500
Q min
Color
(1 MHz) Code
300** †Red Dot
500**
Blue
500**
White
500**
Red
300
Green
300
Orange
Bulk Pack
Model No.
GKG3R026
GKG6R026
GKG10026
GKG20026
GKG30026
GKG50H26
† Marking on bottom of capacitor.
* Re-rated in 1994 for lower min capacitance.
** Q at 10 MHz
0.16 ± 0.008
4.0 ± 0.2
SLOTS
0.02 0.02
x
DP
0.5
0.5
0.094
2.4
0.055
DIA
1.4
0.11 ± 0.008
2.7 ± 0.2
ROTOR
Bulk Pack
Model No.
GKG3R027
GKG6R027
GKG10027
GKG20027
GKG30027
GKG50H27
STATOR
SEAL
Carrier and
Reel Pack
Model No.
GKG3R067
GKG6R067
GKG10067
GKG20067
GKG30067
GKG50H67
Bulk Pack
Model No.
GKG3R028
GKG6R028
GKG10028
GKG20028
GKG30028
GKG50H28
TERMINALS
APPROX. FLUSH TO
MOUNTING SURFACE
0.16 ± 0.008
4.0 ± 0.2
0.20 max
5.2
0.11 ± 0.008
2.7 ± 0.2
0.02 0.02
x
DP
SLOTS
0.5 0.5
ROTOR
0.11 ± 0.008
2.9 ± 0.2
TERMINALS
APPROX. FLUSH TO
MOUNTING SURFACE
0.055
DIA
1.4
STATOR
SEAL
0.047
TYP
1.2
0.02 0.02
x
DP
0.5
0.5
0.094
2.4
SEAL
0.18 ± 0.008
4.5 ± 0.2
0.28 ± 0.02
7.0 ± 0.5
0.094
2.4
GKG _ _ _ 26, 66
0.16
4.0
0.055
DIA
1.4
0.079
TYP
2.0
0.063
1.6
PAD LAYOUTS
0.16
4.0
GKG _ _ _ 28, 68
GKG _ _ _ 27, 67
0.063
1.6
0.079
TYP
2.0
0.063
1.6
0.079
TYP
2.0
0.120 ± 0.006
DIA
3.05 ± 0.15
STATOR
0.047
TYP
1.2
0.28 ± 0.008
7.0 ± 0.2
GKG _ _ _ 27, 67
ROTOR
SLOTS
TERMINALS
APPROX. FLUSH
TO MOUNTING
SURFACE
0.18 ± 0.008
4.5 ± 0.2
0.094
2.4
GKG _ _ _ 26, 66
0.16 ± 0.008
4.0 ± 0.2
Carrier and
Reel Pack
Model No.
GKG3R068
GKG6R068
GKG10068
GKG20068
GKG30068
GKG50H68
Available without seal — consult factory.
Carrier and reel specifications on page 11.
Add –07 to Model No. for 700 / reel, –25 for 2500 / reel.
0.11 ± 0.008
2.8 ± 0.2
0.18 ± 0.008
4.5 ± 0.2
0.047
TYP
1.2
Carrier and
Reel Pack
Model No.
GKG3R066
GKG6R066
GKG10066
GKG20066
GKG30066
GKG50H66
GKG _ _ _ 28, 68
All dimensions are in / mm. Unless otherwise specified, the tolerance on dimensions is ± 0.004 / 0.1.
SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 • E-MAIL: info@ spraguegoodman.com
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