Trimmer Capacitors FAQ

Precautions on Using

Are there any precautions when adjusting the capacitance value?

Use a screwdriver suitable for the screwdriver slot on the trimmer capacitor. When an unsuitable or tip-worn screwdriver is used, adjustment may be difficult. Also, using a metal-tip screwdriver makes capacitance adjustment difficult due to stray capacitance. Use a ceramic-tipped screwdriver.

Recommended Adjustment Tools List
Ceramic Trimmer Capacitors Adjustment Tools

Series Screwdriver for Manual Adjustment
Manufactures
MURATA`s
Part Number
Appearance (mm)
End 
dimension (mm)
TZR1 MURATA MFG. KMDR160 Flat blade 0.3x0.13
TZY2_001
(Non Standard type)
ENGINEER, INC.
P/N;DA-89
KMDR060 Flat blade 0.8x0.35
TZV2
TZY2_C01
(Standard type)
VESSEL MFG.
P/N;No.9000
-0.9×30
KMDR020 Flat blade 0.9x0.4
TZC3_110
(Non Standard type)
TZB4
MURATA MFG. KMDR010 Flat blade 2.2x0.4
TZW4

VESSEL MFG.
P/N;No.9000
-1.3×30
KMDR130 Flat blade 1.3x0.4
TZC3_A01
(Standard type)
 VESSEL MFG.
P/N;No.9000
+1.7×30
 KMDR080
Cross type  1.7 

The force applied by the screwdriver should be 1.0N or less to reduce drift after capacitance adjustment.
If a force of 5.0N or more is applied, the product may be damaged or fail to function properly.

Usage Video of Trimmer Capacitor

Trimmer Capacitor <TZB4 series> Adjustment Technique
Adjustment Technique of Trimmer Capacitor.


Trimmer Capacitor <TZY2 series> Adjustment Technique
Usage Video of Trimmer Capacitor

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