Required Torque: 45.2 N-cm [4 lbf-in]
Recommended Tool: Contact Ironwood
55.000
5.750
46.225
4.225
65.025
74.725
18.570
7.381
100.000°
84.836
105.223
CBT-QFN DIRECT MOUNT, SOLDERLESS SOCKET FOR BURN-IN AND
TEST APPLICATIONS
Features
• Wide temperature range (-55C to +180C).
• High current capability (up to 4A).
• Excellent signal integrity at high frequencies.
• Low and stable contact resistance for reliable production yield.
• Highly compliant to accommodate wide co-planarity
variations.
• Automated probe manufacturing enables low cost and short
lead time.
Ironwood Electronics, Inc.
Tele: (800) 404-0204
www.ironwoodelectronics.com
Tolerances:
Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice.
Description: CBT QFN174 40x50mm IC 195 pads with castellation
Primary dimension units are millimeters, Secondary dimension units are [inches].
STATUS: Released
REV. A
DATE: 8/16/2016
Material: -
Finish: -
Weight: 273.29
CBT-QFN-7050 Specification
SCALE: 2:3
SHEET: 1 OF 6
DRAWN BY: M. Raske
FILE: CBT-QFN-7050 Dwg
1.550±0.050 (x2)
Non-plated alignment hole
3.400±0.100 (x8)
Non-plated mounting hole
20.500
7.500
23.750
(x4)
28.7625
(x4)
62.525
Keep out area
52.500
Keep out area
17.020
12.600
18.4875
1.200
0.770
1.300
0.820
24.2625
0.675
0.275
55.000
Insulation & backing plate
65.025
Insulation & backing plate
72.625
socket base outline
60.000
Socket base outline
Orientation mark
Target PCB Recommendations
Total thickness: 1.6mm min.
Plating: Gold or Solder finish
Ironwood Electronics, Inc.
Tele: (800) 404-0204
www.ironwoodelectronics.com
Tolerances:
Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice.
Description: Recommended PCB layout
Primary dimension units are millimeters, Secondary dimension units are [inches].
STATUS: Released
REV. A
DATE: 8/16/2016
Material: -
Finish: -
Weight: 273.29
CBT-QFN-7050 Specification
SCALE: 1.75:1
SHEET: 2 OF 6
DRAWN BY: M. Raske
FILE: CBT-QFN-7050 Dwg