Share on (1601275273649):

Pin | Name | Description |
1 | Vin+ | This pin is connected to the input negative (+) power supply using the "middle overlap method", so it needs to be connected to the center tap of the 4/5 network transformer to connect this pin. If the power supply adopts the "end crossing method", it is necessary to connect the center tap of the 1/2 network transformer to this pin |
2 | Vin- | This pin is connected to the input negative (-) power supply using the "middle overlap method", so it needs to be connected to the center tap of the 7/8 network transformer to connect this pin. If the power supply adopts the "end crossing method", it is necessary to connect the center tap of the 3/6 network transformer to this pin |
3 | NC | Reserve fixed pin |
4 | Vout- | This pin is the module output negative pole |
5 | Vout+ | This pin is the module output positive pole |
6,7 | NC | Reserve fixed pin |
No | Parameter | Symbol | Min | Max | Unit | |||||
1 | Input DC voltage | VCC | 42 | 57 | V | |||||
2 | DC Voltage Surge 1ms | VSURGE | -0.6 | 80 | V | |||||
3 | Ambient temperature | TS | -40 | 80 | ℃ | |||||
* Exceeding the above rating may cause permanent damage to the product. Functional operations under these conditions are not recommended. ● Recommended working conditions | ||||||||||
No | Parameter | Symbol | Min | Typ | Max | Unit | ||||||
1 | Input DC voltage | VIN | 42 | 48 | 57 | V | ||||||
2 | Low pressure input threshold | VLOCK | 37 | - | - | V | ||||||
3 | Ambient Temperature | TOP | -40 | 25 | 80 | ℃ | ||||||
* Applicable only to WC-PD25C012A maximum operating temperature. ● DC Characteristic | ||||||||||||
No | Parameter | Symbol | Min | Typ | Max | Unit | Test conditions | |||||||
1 | Standard Output Voltage | VDC | 11.75 | 12 | 12.2 | V | VIN=48V Tc:25℃ | |||||||
2 | Output Current(VIN=48V) | PWR | - | 2 | - | A | Wide voltage input 42-57V | |||||||
3 | Power adjustment rate | VLINE | - | 0.1 | - | % | @50% Load | |||||||
4 | Load Adjustment Rate | VLOAD | - | 1 | - | % | @VIN=48V | |||||||
5 | Ripple Output Noise | VRN | - | 200 | 250 | mVp-p | @Maximum Load | |||||||
6 | Minimum Load | RLOAD | 10 | - | - | mA | ||||||||
7 | Short circuit duration | TSC | - | - | ∞ | sec | ||||||||
8 | Efficiency (load 80%) | EFF | 82 | 87 | - | % | ||||||||
9 | Isolation Voltage (I/O) | VISO | - | - | 1500 | VPK | ||||||||
10 | Temperature Coefficient | Tc | - | 0.02 | % | Per ℃ | ||||||||
11 | Transient Rresponse | Ts | - | 100 | 250 | ms | VIN=48V VOUT=max | |||||||
* Typical number is 25℃, nominal voltage is 48V, for auxiliary design only; * Output ripple and noise can be reduced by an external filter, see the application instructions; * If operated under the specified minimum load, the module will emit sound noise, which may cause repeated hiccups in the PSE. | ||||||||||||||


Define criteria | Cable requirements | Grading parameters | Power Supply Characteristics |
IEEE802.3at (PoE Plus) | CAT5 cable or CAT6 cable | Maximum power required for Class4 devices is 13W~25.5W | 1. The DC voltage ranges from 42 to 57V, with a typical value of 48V. 2. Typical operating current is 10~600mA; typical output power: 25.5W. 3. Class4 rating supported by electrical equipment. |
IEEE802.3af (PoE) | CAT5 cable | Maximum power required for Class0 devices is 0~12.95W | 1. The DC voltage ranges from 38 to 57V, with a typical value of 48V. 2. Typical operating current is 10~350mA; typical output power: 15.4W; 3. The overload detection current is 350~500mA. 4. Provide 4 Class Power Requests for PD Devices ranging from 3.84 to 12.95W |
The maximum power required for Class1 devices is 0~3.84W | |||
The maximum power required for Class2 devices is 3.85W~6.49W | |||
The maximum power required for Class3 devices is 6.5W~12.95W |









New products from manufacturers at wholesale prices