SF-QFN28F-A-02F Datasheet, PDF (1/1 Pages) Ironwood Electronics. – Materials and specifications are subject to change without notice

4.36mm [0.172"]
0.68mm [0.027"]
0.5mm
R 0.4mm (x8)
0.43mm
[0.017"]
4.36mm
[0.172"]
0.75mm
[0.030"]
0.75mm [0.030"]
Top View
3.3mm ±0.18mm
[0.130" ±0.007"]
Side View
0.68mm
[0.027"]
3mm
[0.118"]
3
3mm [0.118"]
2
1
5.72mm
[0.225"]
0.5mm
0.3mm
[0.012"]
5.72mm [0.225"]
Bottom View
Compatible IC
0.35mm
0.43mm
[0.017"]
0.4mm
0.3mm max
0.5mm
4mm
Pinout
28
22
28
21
1
1 27 25 24 22
21
3 2 26 23 20
0.02mm
0.9mm±0.1mm
0.5mm
4mm
4
5 NC 19 18
6 9 12 16 17
7
8 10 11 13 15
15
7
14
8
14
Top View
Substrate: 0.79mm ±0.18mm [0.031" ±0.007"]
1 _{IPC 4101/21 material. RoHS finish.}
2 ^{Substrate: 1.59mm ±0.18mm [0.062" ±0.007"]}
IPC 4101/21 material. Non-clad.
Pins: shell material- Brass Alloy 360 1/2 hard;
finish- 0.25µm [10µ"] Au over 1.27µm [50µ"]
3 _{Ni (min.). Contact material- BeCu; finish}
0.25µm [10µ"] Au over 2.54µm [100µ"] Ni
(min. ).
Description: MLF surface mount foot (SF)
28 position female micro grid array (UGA) to 28 position(+4 GND) MLF SMT interface. Part solders to
target board land using standard industry SMT techniques.
RoHS
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.
SF-QFN28F-A-02F Drawing
© 2010 IRONWOOD ELECTRONICS, INC.
11351 Rupp Drive, Suite 400, Burnsville, MN 55337
Tele: [phone]
www.ironwoodelectronics.com
Status: Released
Scale: 8:1
Rev: A
Drawing: E Smolentseva
Date: 3/3/10
File: SF-QFN28F-A-02F Dwg.mcd
Modified: