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Coilcraft CPS
Close up of C1591-AL_
Datasheet 3D Models

C1591-AL

C1591-ALD

RoHS compliant

For more information and specification about the part.

Go to series
Buy Now:
Count Unit price
1 $3.08
350 $2.64
700 $2.31
1400 $1.79
2800 $1.54
5000 $1.41

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

. in stock, ready to ship today.
Request a Sample:

Typical Application

Works with Texas Instruments LM5070

Input Voltage Output 1 Power Fsw
Sec Bias
36 V — 72 V 5 V , 0.6 A 12 V , 0.02 A 3 W 250 kHz

Specifications

Electrical specifications at 25°C.

Part number 2
(Hover for schematics)
Inductance
at 0A (µH) 3
(Tolerance: ±10%) 		Inductance
min at   0.3 A (µH) 		DCR max (Ω) 4 Leakage
Inductance
max (µH) 5 		Turns Ratio 6 Isolation
Voltage (Vrms) 7
Pri Sec Bias Pri : Sec : Bias
C1591-AL_ 310 279 1.020 0.118 2.010 4.5 1 : 0.28 : 0.7 1500
Notes
  1. Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA.
  2. When ordering, please specify packaging code: e.g. C1592-ALD
  3. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
  4. DCR for the secondary is per winding.
  5. Leakage inductance measured between pins 3 and 4 with all other pins shorted.
  6. Turns ratio is with the secondary windings connected in parallel.
  7. 1500 Vrms isolation from primary and bias to secondary.

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

Packaging:

  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (350 parts 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

lm5070_ep7s.gif
Secondary windings to be connected in parallel on PC board

Physical characteristics

lm5070_ep7d.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_f.gif
350 330 100 13 38,4 32,4 32 20 4 2 9,2 0,42

General specification

Core Material:
Ferrite
Weight:
2.05 g
Packaging:
350 per 13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm pocket spacing, 9.16 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.

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PoE transformer, for NSC LM5070, 3.3V, SMT, RoHS

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PoE transformer, for NSC LM5070, 12V, SMT, RoHS

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