Power Adapter BLOW 3846# 9 V 1000 mA DC Output, 2.1/5.5 mm Barrel Plug, Center Positive

AC/DC switching power adapter BLOW model 3846# delivers a stabilized 9 V DC output with a maximum current of 1000 mA (1 A). The adapter is built as a compact external supply with a 2.1/5.5 mm barrel plug and center-positive polarity, designed to feed low-power electronic devices that require a reliable 9 V/1 A supply. Its compact casing and lightweight design make it suitable for wall-mounted or desktop use where space is limited.

Advantages

The adapter provides a regulated 9 V output with stable current up to 1 A, compatible with many consumer and professional low-power devices. The common 2.1/5.5 mm barrel connector and center-positive polarity ensure straightforward connection to devices that use this industry-standard plug. Its switching design improves efficiency, reduces heat generation compared with linear supplies, and allows for a relatively small external housing suitable for everyday installations.

Suitable for

• Small routers and network equipment that accept 9 V/1 A input
• CCTV and surveillance cameras with compatible barrel connector and center-positive polarity
• Audio equipment, effect pedals and small mixers requiring 9 V DC
• Battery chargers for small devices and other low-power electronics rated for 9 V/1 A

Key specifications

• Output voltage: 9 V DC
• Maximum output current: 1000 mA (1 A)
• Connector type: barrel plug 2.1/5.5 mm
• Polarity: center positive
• Supply type: AC/DC switching adapter (external)
• Intended use: wall-mounted or desktop external power supply for low-power electronics

How to use

Confirm the target device accepts a 9 V DC input and can draw up to 1 A. Verify the device uses a 2.1/5.5 mm barrel connector with center-positive polarity before connecting. Insert the barrel plug into the device socket and connect the adapter to an appropriate AC mains outlet. Ensure the mains voltage matches the adapter input rating printed on the unit. Disconnect the adapter from mains when not in use or during maintenance of the powered device.

Usage recommendations

Use the adapter only with devices that specify 9 V DC and center-positive barrel polarity. Avoid overloading the adapter by connecting devices that require more than 1 A. Place the adapter in a well-ventilated area, keep it away from direct heat sources and moisture, and inspect the cable and plug regularly for wear or damage.