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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Models

A9786-AL Planar Magnetics

for TI LM5041

Specially developed for use with the Texas Instruments LM5041 Cascaded PWM Controller
Low profile, high efficiency planar transformer
Planar output chokeinductor

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Specifications

Electrical specifications at 25°C.

Transformer

Part number 1 (Hover for schematics)	Power (W)	Input Voltage (V)	Inductance min (mH) 2	DCR max 3			Leakage Inductance max (µH) 4	Isolation Voltage (Vrms)	Secondary Output (V, )
Part number 1 (Hover for schematics)	Power (W)	Input Voltage (V)	Inductance min (mH) 2	Pri (mΩ)	Sec (mΩ)	Aux (mΩ)	Leakage Inductance max (µH) 4	Isolation Voltage (Vrms)	Secondary Output (V, )
A9786-ALD	150	36 — 75	1.25	62.5	0.91	200	0.90	1100	2.5 V , 60.0 A

Output Inductor

Part number 5	Inductance (µH) 6	DCR max (Ω)	Isolation Voltage (V) 7	Isat (A) 8	Irms (A) 9
Part number 5	Inductance (µH) 6	DCR max (Ω)	Isolation Voltage (V) 7	Isat (A) 8	Irms (A) 9
A9787-ALD	57	0.017	1100	8.1	12.0

Notes

When ordering, please specify packaging code: e.g.A9786-ALD
Inductance measured on an Agilent/HP 4284 between pins 1 and 3 at 250 kHz, 0.1 Vrms, 0 Adc.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Leakage inductance measured between pins 1 and 3 at 100 kHz, 0.1Vrms, 0 Adc with all secondary pins shorted.
When ordering, please specify packaging code: e.g. A9787-ALD.
Inductance measured on an Agilent/HP 4284 at 250 kHz, 0.1 Vrms.
Isolation measured from pins 1,2 to the core.
DC current at which inductance drops 10% (typ) from its value without current. Details
. Current that causes a 40°C rise from 25°C ambient. Details

Termination:

RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.

Packaging:

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

Performance curves

Inductance vs Current (A9787-A Planar Output Inductor)

Inductance vs Frequency (A9787-A Planar Output Inductor)

Schematics

Planar Transformer Planar Output Inductor

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
125	330	100	13	62,4	56,4	56	40	4	2	11,6	0,42

General specification

Weight:

33.4 g

Packaging:

125/13″ reel 56 mm tape

Soldering/Washing

Resistance to soldering heat:

Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. Other solvents

A9786-AL Planar Magnetics

for TI LM5041

Specifications

Transformer

Output Inductor

Termination:

Packaging:

Performance curves

Inductance vs Current (A9787-A Planar Output Inductor)

Inductance vs Frequency (A9787-A Planar Output Inductor)

Schematics

Planar Transformer Planar Output Inductor

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Related product series

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Warehouses

Language settings

Currency settings

A9786-AL Planar Magnetics

for TI LM5041

Selected configuration not available

Specifications

Transformer

Output Inductor

Termination:

Packaging:

Performance curves

Inductance vs Current (A9787-A Planar Output Inductor)

Inductance vs Frequency (A9787-A Planar Output Inductor)

Schematics

Planar Transformer Planar Output Inductor

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Related product series

Magnetics

B0860-CL Planar Transformer

C1539-AL Planar Transformer

DA2025-AL Planar Transformer

HA3648-BL Planar Transformer

HA4000-AL Planar Transformer

JA4309 Planar Transformer

Magnetics for

B0853-AL SMT Planar Transformer

MA5519-AL Planar Transformer

NA5738-DL SMT Planar Transformer

NA5871-AL 800 W Planar Transformer

PA6605-AL Planar Transformer

PL140 Series

PL160 Series

PL300 Series

RA6992-BL SMT Planar Transformer

RA6998 Forward Mode Planar Transformer

RA6999-AL Forward Mode Transformer

RA7040-AL Forward Mode

YA9215-AL 50 W Resonant Transformer

Warning