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SUGGESTED PRINTED BOARD HOLE SIZES FOR COMPLIANT PRESS-FIT CONNECTORS
Traditionally, tin-lead has been a popular plating for PCB holes. However, many PCB hole platings must now be RoHS
Compliant. Positronic is pleased to offer
PCB HOLE SIZE FOR RoHS
! PCB plating as shown below.
Note:
For PCB plating compositions
not shown, consult Technical Sales.
OMEGA & BI-SPRING
COMPLIANT PRESS-FIT CONTACT HOLE
BOARD
TYPE
CONTACT
SIZE / TYPE
RECOMMENDED
DRILL HOLE SIZE
RECOMMENDED
PLATING
FINISHED
HOLE SIZES
TIN-LEAD
SOLDER
PCB
22
OMEGA
1.150±0.025
[0.0453±0.0010]
15μ [0.0006]
minimum solder
over 25μ [0.0010]
min. copper
1.000+0.090-0.060
[0.0394+0.0035-0.0024]
16
BI-SPRING
1.750±0.025
[0.069±0.001]
1.600+0.090-0.060
[0.0630+0.0035-0.0024]
12
BI-SPRING
2.59±0.025
[0.102±0.001]
2.44±0.05
[0.096±0.002]
8
BI-SPRING
3.180±0.025
[0.125±0.001]
3.02±0.05
[0.119±0.002]
RoHS PCB PLATING OPTIONS
COPPER
PCB
22
OMEGA
1.19±0.025
[0.047±0.001]
25μ [0.0010]
min. copper
1.09±0.05
[0.043±0.002]
16
BI-SPRING
1.750±0.025
[0.069±0.001]
1.600+0.090-0.060
[0.0630+0.0035-0.0024]
12
BI-SPRING
2.59±0.025
[0.102±0.001]
2.44±0.05
[0.096±0.002]
8
BI-SPRING
3.180±0.025
[0.125±0.001]
3.02±0.05
[0.119±0.002]
IMMERSION
TIN
PCB
22
OMEGA
1.19±0.025
[0.047±0.001]
0.85±0.15μ
[0.000033±0.000006]
immersion tin
over 25μ [0.0010]
min. copper
1.09±0.05
[0.043±0.002]
16
BI-SPRING
1.750±0.025
[0.069±0.001]
1.600+0.090-0.060
[0.0630+0.0035-0.0024]
12
BI-SPRING
2.59±0.025
[0.102±0.001]
2.44±0.05
[0.096±0.002]
8
BI-SPRING
3.180±0.025
[0.125±0.001]
3.02±0.05
[0.119±0.002]
IMMERSION
SILVER
PCB
22
OMEGA
1.19±0.025
[0.047±0.001]
0.34±0.17μ
[0.000013±0.000007]
immersion silver
over 25μ [0.0010]
min. copper
1.09±0.05
[0.043±0.002]
16
BI-SPRING
1.750±0.025
[0.069±0.001]
1.600+0.090-0.060
[0.0630+0.0035-0.0024]
12
BI-SPRING
2.59±0.025
[0.102±0.001]
2.44±0.05
[0.096±0.002]
8
BI-SPRING
3.180±0.025
[0.125±0.001]
3.02±0.05
[0.119±0.002]
ELECTROLESS
NICKEL /
IMMERSION
GOLD
PCB
22
OMEGA
1.19±0.025
[0.047±0.001]
0.05μ [0.000002] min.
immersion gold over
4.5±1.5μ
[0.000177±0.000059]
electroless
nickel per IPC-4552
over 25μ [0.0010]
min. copper
1.09±0.05
[0.043±0.002]
16
BI-SPRING
1.750±0.025
[0.069±0.001]
1.600+0.090-0.060
[0.0630+0.0035-0.0024]
12
BI-SPRING
2.59±0.025
[0.102±0.001]
2.44±0.05
[0.096±0.002]
8
BI-SPRING
3.180±0.025
[0.125±0.001]
3.02±0.05
[0.119±0.002]
“Bi-Spring” Termination
“Omega” Termination
When properly used, Positronic
Industries Bi-Spring Power or
Omega Signal Press-Fit terminations
provide reliable service even under
severe conditions.
Connectors utilizing this
eading technology press-fit
contact are easy to install:
1. nexpensive installation tooling
is available from Positronic. To
order installation tools, please
contact Technical Sales.
2. nsert the connector into the
printed circuit board or back-
plane and seat connector fully.
3. Secure the connector to the
P.C. board or backplane
using two self-tapping screws.
The screws should be 2-28
Triplask II Trilobular threads
supplied by customer, which
can be purchase separately.
PRESS-FIT USER
INFORMATION
COMPLIANT
PRESS-FIT TERMINATION
CONTACT HOLE
COMPLIANT PRESS-FIT CONNECTORS
For Connector Variants Containing
SIZE 8, 22, 16, 18 AND 22 Press-Fit Contacts Only
17
A-010 Rev B2
Positronic Industries
www.connectpositronic.com
www.positronicasia.com