High-Precision Panel VU Meter Backlight Power Amplifier Audio DB Level Header,Default NO5245

Features:

Premium quality, cute appearance, stable and reliable performance, Display high precision and with backlight.

Part No. TR-35

Professional, high Class

dB : -20~+5dB

0dB=1.288V+/-10%, calibalated

DCR= 650Ω, If=450uA

Lamp : White LED x1pcs ,10~20mA (Original design has no resistor inside, so need extra one to work)

Led Lamp voltage : 2.2~2.6V

So, you need the extra resistor : 270Ω 1/4W ,if VDC=5V

390Ω 1/4W ,if VAC/DC=6.3V

1000Ω 1/2W ,if VAC/DC=12.6V

Also need external resistor,diode, capacitor

(if 1Khz 0dB=1.288Vrms, R1=470Ω,VR1=100Ω, or R1+VR1=500Ω)

Dimension : 35.0x35.0x38.0mm, WxHxD

View size : φ34.0mm

Mounting hole/pitch : φ3.5mm/28.0x28.0mm

Note: On the center 2 pins are for meter coil, other 2 pins are for LED

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