
Product Introduction
The TPA309 series is a 12W detachable power adapter designed and manufactured by Shenzhen Topow Electronics Co., Ltd. It features a wide input voltage range of 100–240Vac and provides a stable 12V/1.0A output, making it suitable for a variety of low-power IT and audiovisual equipment. This detachable power adapter is compliant with international safety standards such as IEC 62368-1 and carries certifications including UL and CB scheme. Notably, it supports interchangeable plugs for different regions, including Argentina, Europe, and Brazil, enhancing its versatility for global use. With an average efficiency of 83.26% and comprehensive protection features, it ensures reliable and safe operation in diverse environments.
Product Advantages
Globally Interchangeable Plugs
Supports Argentina, European, and Brazilian standard plugs;
Enables flexible use across different countries and regions;
Easy plug replacement without needing different adapters.
High Efficiency Performance
83.26% average efficiency rating;
Energy-efficient operation reduces power consumption;
Meets international energy efficiency standards.


Wide Voltage Compatibility
Input voltage range: 100-240Vac;
Suitable for unstable power grid areas;
Universal compatibility with global power systems.
Multiple Safety Certifications
UL certification for Argentina market;
CB scheme certification;
Compliance with IEC 62368-1 safety standards;
RoHS and REACH environmental compliance.
Application Scenarios
Networking & Communications
- Routers and modems
- Wi-Fi access points
- Network switches
- IP cameras and security systems
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Audio-Visual Systems
- Small powered speakers
- Bluetooth audio receivers
- LED lighting systems
- Multimedia players
02
Office Electronics
- Desktop telephones
- Barcode scanners
- Printers and fax machines
- Document processors
03
Portable Consumer Devices
- Smart home controllers
- Electronic toys
- Portable monitors
- Mobile device charging stations
04
Our Certificate

UL

FCC

CB

CE
FAQ
01.How many units per carton?
02.Can this adapter be shipped overseas?
03.Do you have experience with the Brazilian market?
04.What plugs are available for this adapter?
05.What's the typical lead time for mass production?
Frequently Asked Questions
What is the output rating of the TPA309 detachable power adapter?
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TPA309 series provides a stable output of 12V, 1.0A, with a maximum power of 12W.
Can I use this adapter in different countries?
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Yes, this detachable power adapter comes with interchangeable plugs for Argentina, Europe, and Brazil, making it suitable for use in multiple regions.
What safety protections does this power adapter include?
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It includes output short circuit protection, over current protection, and over voltage protection, all with hiccup auto-recovery mode.
Is this product certified for safety?
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Yes, it is certified under UL, CB scheme, and complies with IEC 62368-1 safety standards.
What is the operating temperature range?
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It can operate within a temperature range of -10°C to +55°C.
Our Service
Create a comprehensive solution for efficient human theft manag
01
Customization – Tailored to Your Needs
We offer flexible customization services to match your brand and product requirements. Customize labels with your logo and model number, choose enclosure colors, adjust output cable length and gauge, select DC connector types, or configure regional plugs for different markets. Just share your specs – we'll make it happen.
02
Packaging & Shipping – Secure Delivery Worldwide
Each adapter is individually packed in a PE bag with sturdy carton partitions to prevent damage during transit. Standard packing: 100 units per carton. We support palletizing for large orders and work with major freight forwarders to offer sea, air, and express shipping options. Custom packaging is also available upon request.
03
Certifications & Compliance – Globally Compliant
Our products meet major international standards including UL, CB, IEC/EN/UL 62368-1, FCC, DOE Level VI, RoHS, and REACH. We provide full certification documentation and test reports with every shipment, making it easy for you to clear customs and enter global markets. Need special certification? Just ask – we'll help you get it.

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Products Parameters
1. Input characteristic
| Num | Item | Unit | Min value | Typical value | Max value | Remarks | ||||||||||||||||||||||||
| 1.1 | Range of rated input voltage | Vac | 100 | 220 | 240 | |||||||||||||||||||||||||
| 1.2 | Range of maximum input voltage | Vac | 90 | 264 | ||||||||||||||||||||||||||
| 1.3 | Frequency of rated input voltage | Hz | 47 | 50/60 | 63 | |||||||||||||||||||||||||
| 1.4 | Current of rated input voltage | A | 0.5 | |||||||||||||||||||||||||||
| 1.5 | Inrush current | A | 30 | cold start@25℃ | ||||||||||||||||||||||||||
| 1.6 | No-Load Input Power Dissipation | W | 0.1 | |||||||||||||||||||||||||||
2. Output Characteristic
| Num | Item | Unit | Min value | Typical value | Max value | Remarks | ||||||||||||||||||||||||
| 2.1 | Output voltage | V | 11.4 | 12 | 12.6 | |||||||||||||||||||||||||
| 2.2 | Rated output current | A | 1 | |||||||||||||||||||||||||||
| 2.3 | Ripple & Noise | mV | 120 | |||||||||||||||||||||||||||
| 2.4 | Average efficiency | % | 83.26 | |||||||||||||||||||||||||||
| 2.5 | Output load transient response | % | ±5 | |||||||||||||||||||||||||||
| 2.6 | Output overshoot/ undershoot | % | ±5 | |||||||||||||||||||||||||||
| 2.7 | Rise time | ms | 40 | @230V | ||||||||||||||||||||||||||
| 2.8 | Turn on time | s | 3 | @230V | ||||||||||||||||||||||||||
| 2.9 | Hold up time | ms | 50 | @230V | ||||||||||||||||||||||||||
| 2.10 | Line Regulation | % | ±2 | |||||||||||||||||||||||||||
| 2.11 | Load Regulation | % | ±5 | |||||||||||||||||||||||||||
3. Protection Function
| Num | Item | Unit | Yes/No | Minimum value | Typical value | Maximum value | Recover characteristic | |||||||||||||||||||||||
| 3.1 | Short circuit protection | A | Yes | Hiccups protected mode ,Don't damage | ||||||||||||||||||||||||||
| 3.2 | Over current protection | A | Yes | 1.2 | 1.8 | Hiccups protected mode ,Don't damage | ||||||||||||||||||||||||
| 3.3 | Over voltage protection | V | Yes | 16 | ||||||||||||||||||||||||||
4. Environment Requirement
| Num | Item | Unit | Minimum value | Typical value | Maximum value | Remarks | ||||||||||||||||||||||||
| 4.1 | Operating temperature | ℃ | -10 | 25 | 55 | |||||||||||||||||||||||||
| 4.2 | Storage temperature | ℃ | -20 | 25 | 70 | |||||||||||||||||||||||||
| 4.3 | Relative humidity | % | 5 | 95 | No condensation | |||||||||||||||||||||||||
| 4.4 | Altitude | M | 5,000 | Working | ||||||||||||||||||||||||||
