Datasheet

Transition Socket Specification
DS51194S-page 24  2010 Microchip Technology Inc.
XLT20QFN-1
20-lead DIP Adapter Socket
20-lead QFN Header (Surface Foot)
11.4mm
2.5mm
[0.100"]
7.6mm
26.6mm
[0.300"]
[0.450"]
[1.049"]
Top View
Side View
Bottom View
3.3mm [0.130"]
2.3mm [0.093"]
4.2mm [0.165"]
SF-MLF20A-A-02F
(included)
1.2mm [0.047"] *
3.9mm [0.154"] *
* Assembled
2.7mm [0.105"]
7.8mm [0.307"] *
Tolerances: diameters ±0.03 mm [±0.001"],
PCB perimeters ±0.13 mm [±0.005"],
PCB thicknesses ±0.18 mm [±0.007"],
pitches (from true position) ±0.08 mm [±0.003"],
all other tolerances ±0.13 mm [±0.005"] unless
stated otherwise.
Top View
Side View
Bottom View
3
4
5
6
789
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
0.80mm typ.
4.72mm
[0.186"]
4.72mm [0.186"]
3.20mm
[0.126"]
3.20mm [0.126"]
Gnd/index
pin
12
3
4
5
6
7 8 9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
1
20
2.13mm
[0.084"]
2.75mm
[0.108"]
2.13mm [0.084"]
2.75mm [0.108"]
4.00mm [0.157"]
4.00mm
[0.157"]
0.50mm typ. [0.020"]
3.30mm
[0.130"]
12
Tolerances: diameters ±0.03 mm [±0.001"],
PCB perimeters ±0.13 mm [±0.005"],
PCB thicknesses ±0.18 mm [±0.007"],
pitches (from true position) ±0.08 mm [±0.003"],
all other tolerances ±0.13 mm [±0.005"] unless
stated otherwise.