1.Product characteristics

• Compliant with IEEE802.3af standard
• 38V~57V wide operating voltage range.
• Maximum output power up to 13W；Rated output：12V/1.1A.
• The output ripple is less than 150 mV.
• Conversion efficiency can be as high as 86% (input: 48V output)12V@1.1A).
• With over current short circuit under voltage surge and other excellent reliability and circuit protection. 
• PCBA standard size: 38mm*38mm*14mm
• Input/Output: isolate 1500Vdc.
• High reliability: The design meets the 5 million hour average failure interval.

2.Scope of application

• Video and VoIP Phone
• RFID Reader
• Multiband Access Point
•  Surveillance Camera

3. Pin definition 

Pin	Name	Describe
21,22 10,18	Vout+	The positive output of the PD
19,20 9,17	Vout-	The negative output of the PD
7,15	LED+	7,15pin to pin.
8,16	LED-	8,16pin to pin.
1	4/5	Poe power supply input, connected to RJ45 pin4 / 5.
2	7/8	Poe power supply input, connected to RJ45 pin7 / 8.
3,11	TX+	Network signal 1, connected to RJ45 Pin1 (TX +).
4,12	TX-	Network signal 2, connected to RJ45 Pin2 (TX -).
5,13	RX+	Network signal 3, connected to RJ45 Pin3 (RX +).
6,14	RX-	Network signal 6, connected to RJ45 Pin6 (RX -).

5. Electrical characteristics

5.1 Absolute maximum rating parameter

No	Parameter	Symbol	MIN	MAX	Units
1	DC Voltage	VCC	38	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.

5.2 Recommended working conditions

No	Parameter	Symbol	MIN	TYP	MAX	Units
1	Input voltage	VIN	38	48	57	V
2	Low Voltage Lock	VLOCK	-	-	37	V
3	Working temperature	TOP	-40	25	80	℃

*Applicable only to WC-PD13A120H maximum operating temperature.

5.3 output characteristic

No	Parameter	Symbol	MIN	TYP	MAX	Units	Test Opinions
1	Standard Output Voltage	VDC	11.5	12.0	12.2	V	VIN=48v
2	Output Current (VIN=48V)	PWR	-	1.1	1.2	A	Wide voltage input 38-57V
3	Power adjustment rate	VLINE	-	0.1	-	%	@50% Load
4	Load Adjustment Rate	VLOAD	-	1	-	%	@VIN=48V
5	Ripple Output Noise	VRN	-	100	200	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	Dynamic response	TS	-	60	100	ms	VIn=48V Vout=max

1: Typical number is 25 C, nominal voltage is 48V, for auxiliary design only.

2: Output ripple and noise can be reduced by an external filter, see the application instructions.

3: If operated under the specified minimum load, the module emits audible noise and may cause PSE malfunction.