Wire Wound Transformer PULSE PA3855.003NL for SMT Applications Featuring

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Isolation Voltage(Vrms)	2.25kV
Inductance	41uH
Operating Temperature	-40℃~+130℃
Description	41uH LAN Transformer Surface Mount,17.7x14.5mm
Mfr. Part #	PA3855.003NL
Package	SMD,17.7x14.5mm
Model Number	PA3855.003NL

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Product Details
Company Details

Product Specification


Isolation Voltage(Vrms)	2.25kV	Inductance	41uH
Operating Temperature	-40℃~+130℃	Description	41uH LAN Transformer Surface Mount,17.7x14.5mm
Mfr. Part #	PA3855.003NL	Package	SMD,17.7x14.5mm
Model Number	PA3855.003NL

Product Overview

The Pulse Electronics EP13Plus Platforms - SMT PA3855/56.XXXNLT series offers high-frequency wire-wound transformers designed for Surface Mount Technology (SMT) applications. These transformers provide industry-standard footprints with enhanced power handling capabilities, up to 70W. They are suitable for both Forward and Flyback topologies, offering a compact solution with a maximum height of 14.0mm and a footprint of 17.7mm x 14.5mm. The series is engineered for reliable operation across a wide temperature range of -40C to 130C.

Product Attributes

Brand: Pulse Electronics
Platform: EP13Plus
Mounting Type: SMT (Surface Mount Technology)
Topology: Forward and Flyback
Packaging: Tape & Reel available (add 'T' suffix to part number)

Technical Specifications

Part Number	Topology	Pri. Inductance (1-3)	Lk. Inductance (1-3) w/ shorted	DCR (1-3)	DCR (9-6)	DCR (10-7)	DCR (4-5)	Hi-Pot Pri-Sec	K1 Factor	Operating Temperature	Max Height	Max Footprint (L x W)
PA3855.001NL	Flyback	54uH +/- 10%	0.67uH Max	62 m Max	6.5	6.5	120	2250 Vdc	1125.0	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.002NL	Flyback	48uH +/- 10%	0.67uH Max	62 m Max	10	10	120	2250 Vdc	1000.0	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.003NL	Flyback	41uH +/- 10%	0.67uH Max	62 m Max	20	23	120	2250 Vdc	854.2	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.004NL	Flyback	21uH +/- 10%	0.3uH Max	31 m Max	10	10	180	2250 Vdc	538.5	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.005NL	Flyback	21uH +/- 10%	0.3uH Max	31 m Max	14	14	180	2250 Vdc	583.3	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.006NL	Flyback	21uH +/- 10%	0.3uH Max	31 m Max	58	58	180	2250 Vdc	583.3	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3855.008NL	Flyback	2.5uH +/- 10% (6-9)	0.2uH Max (6-9 w/ shorted)	80 m Max (1-2)	10	9	100	2250 Vdc	208.3	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.001NL	Forward	100 uH +/- 15%	0.4uH Max	29.4 m Max	6.5	6.5	120	2250 Vdc	27.8	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.002N	Forward	100uH +/- 15%	0.4uH Max	29.4 m Max	10	10	120	2250 Vdc	27.8	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.003NL	Forward	100uH +/- 15%	0.4uH Max	29.4 m Max	31.6	36	120	2250 Vdc	27.8	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.004NL	Forward	128uH +/- 25%	0.15uH Max	17.6 m Max	14.4	17	410	2250 Vdc	41.7	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.005NL	Forward	128uH +/- 15%	0.15uH Max	17.6 m Max	31.6	36	410	2250 Vdc	41.7	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.006NL	Forward	128uH +/- 15%	0.15uH Max	17.6 m Max	105.6	122	426	2250 Vdc	41.7	-40C to 130C	14.0mm	17.7mm x 14.5mm
PA3856.007NL	Forward	200uH +/- 25% (1-2)	0.36uH Max (1-2 w/ shorted)	60 m Max (1-2)	90	90	75	2250 Vdc	33.3	-40C to 130C	14.0mm	17.7mm x 14.5mm

Mechanical Information

The standard pin numbering for this package has pin 1 on the lower right corner and proceeds clockwise to pin 10 on the upper right corner.

Tape & Reel Information

Part Number Suffix	Reel Size (mm)	Tape Size (mm)	Qty PCS/REEL
PA3855/56.XXXNLT	330	32.4	130

Notes

Component temperature (ambient plus temperature rise) must be within the stated operating temperature range.
For flyback topology applications, ensure the transformer does not saturate. Peak flux density (Bpk) should remain below 2700 Gauss. Calculation: Bpk (Gauss) = K1_Factor * Ipk(A).
In high volt-sec applications, calculate core loss. Approximate core loss (W) = 3.84E-14 * (Freq_kHz)^1.63 * (B_Gauss)^2.63.
For Flyback Topology: B = K1_Factor * I(A).
For Forward Topology: B = K1_Factor * Volt-sec.

2410121959_PULSE-PA3855-003NL_C5718412.pdf

Company Details

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Changsha Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Changsha Purple Horn will also responsible with exporting and logistic business. there is professional factory Changsha Purple Horn which focus on desigining and manufacture. ... Changsha Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Changsha Purple Horn will also responsible with exporting and logistic business. there is professional factory Changsha Purple Horn which focus on desigining and manufacture. ...

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https://www.ictransformer.com/

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