AC AC Wall Adapters

Image	Part Number	Description / PDF	Quantity	Rfq
	318AS20022 Tamura	AC/AC WALL MOUNT ADAPTER 20V 5W	0
	318AS24020 Tamura	AC/AC WALL MOUNT ADAPTER 24V 5W	0
	835AS12150 Tamura	AC/AC WALL MOUNT ADAPTER 12V 18W	0
	835AS24075 Tamura	AC/AC WALL MOUNT ADAPTER 24V 18W	0
	830AS12100 Tamura	AC/AC WALL MOUNT ADAPTER 12V 12W	0
	212AS12012 Tamura	AC/AC WALL MOUNT ADAPTER 12V 2W	0
	830AS24070 Tamura	AC/AC WALL MOUNT ADAPTER 24V 17W	0
	420AS24037 Tamura	AC/AC WALL MOUNT ADAPTER 24V 9W	0
	420AS16056 Tamura	AC/AC WALL MOUNT ADAPTER 16V 9W	0
	318AS16030 Tamura	AC/AC WALL MOUNT ADAPTER 16V 5W	0
	212AS20007 Tamura	AC/AC WALL MOUNT ADAPTER 20V 2W	0
	318AS12037 Tamura	AC/AC WALL MOUNT ADAPTER 12V 5W	0
	420AS12075 Tamura	AC/AC WALL MOUNT ADAPTER 12V 9W	0
	835AS20090 Tamura	AC/AC WALL MOUNT ADAPTER 20V 18W	0
	820A0060-03 Tamura	AC/AC WALL MOUNT ADAPTER 10V 12W	0
	835AS16112 Tamura	AC/AC WALL MOUNT ADAPTER 16V 18W	0
	830A0061-03 Tamura	AC/AC WALL MOUNT ADAPTER 12V 19W	0
	825A0051-03 Tamura	AC/AC WALL MOUNT ADAPTER 12V 16W	0
	830A0062-03 Tamura	AC/AC WALL MOUNT ADAPTER 14V 20W	0
	830A0064-03 Tamura	AC/AC WALL MOUNT ADAPTER 18V 20W	0

AC AC Wall Adapters

1. Overview

AC AC Wall Adapters are external or internal power conversion devices that transform alternating current (AC) from mains outlets into regulated AC or DC output for electronic equipment. These adapters serve as critical power interface solutions in consumer electronics, industrial machinery, and medical devices. Their importance stems from enabling safe voltage conversion, electrical isolation, and compliance with global safety standards.

2. Main Types & Functional Classification

Type	Mounting Style	Output Type	Key Features	Applications
External Adapters	Wall-mounted	AC/DC	Plug-and-play, field replaceable	Smartphones, Laptops
Internal Adapters	Chassis-mounted	AC/AC	Integrated circuit protection	Medical equipment, Servers
Universal Adapters	Modular	Multivoltage	Adjustable output, interchangeable tips	Travel electronics

3. Structure & Components

Typical construction includes:

Fire-retardant housing (UL94-V0 rated)
Transformer assembly (EE/I-core or toroidal)
Rectifier bridge with filter capacitors
Switching regulator (PWM controller)
Protection circuits (OVP/OCP/SCP)
EMI/RFI filtering stage

4. Key Technical Specifications

Parameter	Typical Range	Importance
Input Voltage	90-264V AC	Global compatibility
Output Current	0.5A-10A	Device power requirements
Efficiency	80-94% (DoE Level VI)	Energy conservation
Isolation Voltage	1.5-4kV AC	Electrical safety
Operating Temp	-20 C to +70 C	Environmental reliability
Standby Power	<0.15W	Eco-design compliance

5. Application Fields

Consumer Electronics: Mobile chargers, LED lighting systems
Medical Devices: Patient monitors, diagnostic equipment
Industrial Automation: PLCs, sensor interfaces
Telecommunications: Modems, VoIP adapters
Smart Home Systems: Security cameras, IoT hubs

6. Leading Manufacturers & Products

Manufacturer	Region	Key Product Series	Unique Features
Delta Electronics	Taiwan	ADP-65HH	94% efficiency, 7-year warranty
TDK-Lambda	Japan	LSH50-230	Medical-grade isolation
FSP Group	Taiwan	GQ650W-AB	80 PLUS Gold certification
Mean Well	Taiwan	AP-65	Wide operating temperature

7. Selection Guidelines

Key considerations:

Match output requirements (voltage/current waveform)
Verify safety certifications (UL/cULus, CE, CB)
Evaluate environmental specifications
Assess mechanical compatibility
Calculate system efficiency requirements

Case Study: For a portable medical device requiring 12V AC output, select an adapter with BF-rated isolation, IP22 enclosure, and IEC 60601-1 compliance.

8. Industry Trends

Current development directions include:

GaN-based switching for higher power density
Digital control interfaces (PMBus support)
Smart adapters with energy monitoring
Biodegradable housing materials
Higher efficiency targets (DoE Level VII prep)