3D Model Datasheet

C1099 Flyback Transformer

for Maxim MAX5941A PoE Interface

Developed for Maxim MAX5941A PoE Interface/PWM Controller
Interleaved primary and secondary windings
RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations

Buy Now:

Count	Unit price
1	$3.37
200	$2.89
600	$2.52
1200	$1.97
2400	$1.68
5000	$1.54

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 Maxim MAX5941A

Input Voltage	Output 1		Power	Fsw
Input Voltage	Sec	Bias	Power	Fsw
32 V — 56 V	3.3 V , 2.5 A	14 V	8.25 W	300 kHz

Specifications

Electrical specifications at 25°C.

Part number 2 (Hover for schematics)	Inductance at 0A (µH) 3 (Tolerance: ±5%)	Inductance min at 0.9 A (µH)	DCR max (Ω) 4			Leakage Inductance max (µH) 5	Turns Ratio 6	Isolation Voltage (Vrms) 7
Part number 2 (Hover for schematics)	Inductance at 0A (µH) 3 (Tolerance: ±5%)	Inductance min at 0.9 A (µH)	Pri	Sec	Bias	Leakage Inductance max (µH) 5	Pri : Sec : Bias	Isolation Voltage (Vrms) 7
C1099-AL_	133	126	0.283	0.013	0.480	3.5	1 : 0.13 : 0.57	1500

Notes

Output of the secondary is with the windings connected in parallel. Bias winding output is 14 V.
When ordering, please specify packaging code: e.g. C1099-ALD
Inductance is for the primary, measured at 300 kHz, 1.0 Vrms.
Primary DCR is measured with the windings connected in series. Secondary DCR is measured with the windings connected in parallel.
Leakage inductance is for the primary winding with the secondary winding shorted.
Turns ratio is for the primary connected in series and the secondary connected in parallel.
1500 Vrms, one minute primary to secondary isolation.
500 Vrms, one minute primary to bias isolation.

Termination:

RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost.

Packaging:

D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 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 +125°C

Storage temperature range:

Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C

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

See FIT/MTBF Calculations

Schematics

Primary windings to be connected in series
and 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
200	330	100	13	50,4	44,4	44	28	4	2	9,0	0,37

General specification

Core Material:

Ferrite

Weight:

5.7 g

Packaging:

200 per 13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 28 mm pocket spacing, 9.0 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 with pure water or alcohol only. More info.

Warehouses

Language settings

Currency settings

C1099 Flyback Transformer

for Maxim MAX5941A 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