Product introduction:
★Topow Model：TPA243B Series
The 36W Adapter is a premium single-output switching power supply engineered for mission-critical applications. Delivering 12V/3A (36W) of ultra-stable DC power, this adapter features industrial-grade components and advanced circuit design to ensure uninterrupted operation in demanding environments. With universal 100-240V AC input and multiple international certifications (CCC/CE/DOE/FCC/ETL), it sets new benchmarks for power reliability in both commercial and industrial sectors.
Product feature
Precision Power Delivery
Constant voltage output (12V ±3%) even with ±10% input fluctuations
<1% ripple & noise (150mVp-p max) for sensitive electronics
88.3% typical conversion efficiency (DOE Level VI compliant)
Military-Grade Protection
Triple-protection circuitry: OCP (4.5A cutoff), OVP (15V limit), SCP
±4kV surge protection (IEC 61000-4-5 Level 4)
±8kV ESD shielding (IEC 61000-4-2 Class B)
Extreme Environment Ready
Wide operating temperature: 0°C to +40°C (derating to 70% at 50°C)
IP40-rated enclosure resists dust and moisture
60,000-hour MTBF (MIL-HDBK-217F calculation)
Energy-Smart Design
Ultra-low 0.075W no-load consumption (ERP Lot 7 compliant)
Active PFC (PF>0.95 at full load)
RoHS3 & REACH compliant materials
Product Application
Routers/Switches – Stable power supply for SMB-grade networking devices
Fiber Optic Terminals (ONU/ONT) – Reliable operation for FTTH equipment.
5G Small Cells – Backup power for wireless communication nodes
NVR/DVR Systems – Optimized for multi-HDD storage devices
Access Control Units – Powers biometric scanners and controllers
Portable Monitors – Complies with EN60601-1 medical safety standards
Infusion Pumps – Precision power for critical care equipment
Medical Displays – Surgical imaging system compatibility
Wire specifications
| Terminal specifications | Material: Phosphor Bronze/Double Hook/Insertion PCB Pull Force Requirement >10N |
| Cable tie specifications | black cable tie |
| DC head specifications | 6.5 * Φ 3.0/tuning fork/with groove/black head flat mouth |
| PLUG specifications | PVC-50P/Black |
| SR specifications | PVC-50P/Black |
| Wire specifications | UL2468 # 18AWG (0.16 * 41) * 2C/PVC outer cover/black glossy surface/80C Core copper wire material: Copper/meets safety requirements |
Product Nameplate Information
Customization of the product nameplate is available to meet your specific requirements.
Nameplate:
1. Material: Xiaoyinlong with matte film, 50# black background with silver letters
2. Temperature-resistant up to 120°C
3. Clear printing without defects such as deformation or blurring.
4. Environmental requirements: Comply withTopow's environmental standards
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Product specification
1. Input Characteristic
| No. | Item | Unit | Min value | Typical value | Max value | ||||||||||||||||||||||
| 1.1 | Range of rated input voltage | Vac | 100 | 220 | 240 | ||||||||||||||||||||||
| 1.2 | Range of maximum input voltage | Vac | 90 | 220 | 264 | ||||||||||||||||||||||
| 1.3 | Frequency of rated input voltage | Hz | 47 | 50/60 | 63 | ||||||||||||||||||||||
| 1.4 | Current of rated input voltage | A | / | / | 1.5 | ||||||||||||||||||||||
| 1.5 | Inrush current | A | / | / | 60 | ||||||||||||||||||||||
| 1.6 | No-Load Input Power Dissipation | W | / | / | 0.075 | ||||||||||||||||||||||
| 1.7 | Powe Factor | / | / | / | / | ||||||||||||||||||||||
2. Output Characteristic
| No. | Item | Unit | Min value | Typical value | Max value | ||||||||||||||||||||||
| 2.1 | Output voltage | V | 11.4 | 12 | 12.6 | ||||||||||||||||||||||
| 2.2 | Rated output current | A | / | 3.0 | / | ||||||||||||||||||||||
| 2.3 | Constant/Over current | A | / | / | / | ||||||||||||||||||||||
| 2.4 | Ripple & Noise | mV | / | / | 150mV | ||||||||||||||||||||||
| 2.5 | Average efficiency | % | 88.3 | / | / | ||||||||||||||||||||||
| 2.6 | Light-Load Input Power Dissipation | W | / | / | / | ||||||||||||||||||||||
| 2.7 | Output load transient response | % | / | / | ±5% | ||||||||||||||||||||||
| 2.8 | Output overshoot/ undershoot | % | / | / | ±5 | ||||||||||||||||||||||
| 2.9 | Rise time | ms | / | / | 30 | ||||||||||||||||||||||
| 2.10 | Capacitance Load | uF | / | / | / | ||||||||||||||||||||||
3. Protection Function
| No. | Item | Unit | Yes/No | Minimum value |
Typical value |
Maximu m value |
||||||||||||||||
| 3.1 | Short circuit protection | A | Yes | / | / | / | ||||||||||||||||
| 3.2 | Over current protection | A | Yes | 3.5 | / | 4.5 | ||||||||||||||||
| 3.3 | Over voltage protection | V | Yes | 13.5 | / | 18 | ||||||||||||||||
4. Environment Standards
| No. | Item | Unit | Minimum value | Typical value | Maximum value | ||||||||||||||||||||||
| 4.1 | Operating temperature | ℃ | 0 | 25 | 40 | ||||||||||||||||||||||
| 4.2 | Storage temperature | ℃ | -40 | 25 | 70 | ||||||||||||||||||||||
| 4.3 | Relative humidity | % | 5 | 95 | |||||||||||||||||||||||
| 4.4 | Altitude | M | / | / | 5,000 | ||||||||||||||||||||||
| 4.5 | Waterproof and dustproof | / | IP40 | / | / | ||||||||||||||||||||||
5. Security Test And Safety Certification
| No. | Item | Rating | Standards(or test condition) | ||||||||||||||||||||||||||||
| 6.1 | Hi-pot | 3000Vac | primary to secondary,10mA/60S | ||||||||||||||||||||||||||||
| 6.2 | Insulation Resistance | ≥100M | 500VDC | ||||||||||||||||||||||||||||
| 6.3 | Leakage Current | ≤0.25mA | 240VAC | ||||||||||||||||||||||||||||
