Datasheet 3D Model

C1023 PoE Transformer

for TI LM5070 PoE Interface

Developed for the TI LM5070 PD Interface in 13 W applications
Operates at frequencies up to 1 MHz
RoHS-compliant 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations

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Count	Unit price
1	$4.72
175	$4.04
700	$3.51
1400	$3.06
2800	$2.63
5000	$2.41

For high volume or non-stock items, request a quote.

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

Request a Sample:

Typical Application

Works with Texas Instruments LM5070

Input Voltage	Output	Power	Fsw
36 V — 72 V	3.3 V , 4.5 A	15 W	1000 kHz

Specifications

Electrical specifications at 25°C.

Part number 1 (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Inductance min at 1.5 A (µH)	DCR max 3			Leakage Inductance max (µH) 4	Turns Ratio 5	Isolation Voltage (Vrms) 6
Part number 1 (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Inductance min at 1.5 A (µH)	Pri (Ω)	Sec (mΩ)	Bias (mΩ)	Leakage Inductance max (µH) 4	Pri : Sec : Bias	Isolation Voltage (Vrms) 6
C1023-ALD	110	99	0.139	16.000	656.000	1.4	1 : 0.19 : 0.69	1500

Notes

When ordering, please specify packaging code: e.g. C1023-ALD
Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
DCR for the secondary is per winding.
Leakage inductance is for the primary winding with all other pins shorted.
Turns ratio is with the secondary windings connected in parallel.
1500 Vrms, one minute isolation (hipot). Isolation is measured from the primary and aux to the secondary.

Termination:

RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze. Other terminations available at additional cost.

Packaging:

D = 13″ machine ready reel. EIA-481 embossed plastic tape (175 per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C

Storage temperature range:

Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Schematics

Secondary windings to be connected
in parallel on the PC board.

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
175	330	100	13	50,4	44,4	44	32	4	2	11,9	0,4

General specification

Core Material:

Ferrite

Weight:

12.4 g

Packaging:

175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 11.9 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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C1023 PoE Transformer

for TI LM5070 PoE Interface

Selected configuration not available

Typical Application

Specifications

Termination:

Packaging:

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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Warning