NP276 Series (Open Top)
Ball Grid Array (BGA, 1.27mm Pitch)
Specifications
Part Number(Details)
W
1,000M min. at 100V DC
Dielectric Withstanding Voltage:100V AC for 1 minute
Insulation Resistance:
-
NP276
Series No.
-
-
*
1105 22
(*)
W
Contact Resistance:
30m max. at 10mA/20mV max.
Operating Temperature Range: –55°C to +150°C
–40°C to +170°C
No. of Contact Pins
(.AC-types are depopulated
base sockets)
Contact Force:
Mating Cycles:
30g per pin approx.
10,000 insetions
Design Number
Materials and Finish
Housing:
Polyetherimide (PEI), glass-filled
Positioning Pin Options (see PCB):
Polyethersulphone (PES), glass-filled
Pos. pin 'A'
With
With
Without
Without
Pos. pin 'B'
With
Without
With
Contacts:
Plating:
Beryllium Copper (BeCu)
Gold over Nickel
1 =
2 =
3 =
4 =
Features
Without
í Open top type sockets for BGA packages
í Self contacting structure without upper pressing force (ZIF)
í Contacting structure to nip the sides of solder balls to lower
damage to the coplanarity of the solder balls
Contact Terminal Length and Form
Yamaichi's 2-point Tweezer Contact
IC
Ball
Socket
Base A
Since the solder balls are touched
by two contacts on each side,
the solder ball damage can be
minimized; additional features
are low actuation force and
compact socket size
Contacts
Socket
Base B
We have depopulated versions from existing NP276 base sockets.
As new versions are continually being tooled up we rcommend
to contact Yamaichi for your specific pin count
and matching IC
Applicable Base Socket and IC Dimensions
IC Dimensions
Body Size
Grid Size
Base Sockets
Part
Number
Pin
Count
(see page)
Pitch
NP276-11904
NP276-11904-3
NP276-15316
NP276-16951
NP276-25626
NP276-37206
119
119
153
169
256
372
1.27
1.27
1.27
1.27
1.27
1.27
7 x 17
7 x 17
14 x 22
14 x 22
14 x 22
17 x 17
21 x 21
27 x 27
2
2
3
4
5
6
9 x 17
13 x 13
16 x 16
20 x 20
NP276-40009
NP276-59608
400
596
1.27
1.27
20 x 20
26 x 26
27 x 27
35 x 35
7
8
NP276-65227
NP276-87318
NP276-110522
652
873
1.27
1.27
1.27
28 x 28
31 x 31
35 x 35
37.5 x 37.5
40 x 40
9
10
11
1105
45 x 45
Test & Burn-In
SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE
–
DIMENSIONS IN MILLIMETER