44

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GND

GND

3.02mm

[0.119"]

6.32mm [0.249"]

6.32mm

[0.249"]

7.00mm [0.276"]

5.75mm [0.226"]

7.00mm

[0.276"]

5.75mm

[0.226"]

5.11mm

[0.201"]

5.11mm [0.201"]

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0.80mm [0.032"] typ.

0.30mm [0.012"] typ.

0.50mm [0.020"] typ.

Top View

Bottom View

Front View

Substrate: 0.635mm ±0.18mm [0.025" ±0.007"]

per IPC 4101/21, Gold surface finish.

Description: 44 position MLF surface mount foot

44 position (+1 Gnd index pin). 0.8mm pitch UGA female receptacles (top) to 44 position, 0.5mm MLF pattern

Status: Released

Drawing: H. Hansen

Scale: 8:1

Rev: A

Date: 12/12/05

Modified:

File: SF-QFN44B-L-02 Dwg

SF-QFN44B-L-02 Drawing

Tolerances: diameters ±0.03mm [±0.001”], PCB perimeters ±0.13mm [±0.005”], PCB thicknesses ±0.18mm [±0.007"], pitches (from true position)

±0.08mm [±0.003"], all other tolerances ±0.13mm [±0.005”] unless stated otherwise. Materials and specifications are subject to change without notice.

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Pins: shell material- Brass Alloy 360 1/2 hard;

finish- 0.25µm [10µ"] Au over 1.27µm [50µ"] Ni

(min.). Contact material- BeCu; finish 0.25µm

[10µ"] Au over 2.54µm [100µ"] Ni (min. ).

Substrate: 1.59mm ±0.18mm [0.062" ±0.007"]

FR4/G10 or equivalent high temp material.

Non-clad.

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RoHS COMPLIANT

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© 2005 IRONWOOD ELECTRONICS, INC.

11351 Rupp Drive, Suite 400, Burnsville, MN 55337

Tele: (952) 229-8200

www.ironwoodelectronics.com