ZIF Prime Circuit Board Retainers Part Number Series: ZIF Prime

CTS
®
DESIGN FEATURES
PC BOARD MOUNTABLE
POSITIVE 1/4 TURN LOCKING
QUICK INSTALLATION
SUPERIOR MECHANICAL RETENTION
THERMALLY EFFICIENT, 0.9°C-INCH/WATT
PRODUCT BENEFITS
GENERAL DESCRIPTION
The ZIF Prime is the latest in state-of-the-art rugged retainers
released by CTS Electronic Components. It offers the most
common finish and actuation styles and maintains the superior
thermal and mechanical features of the ZIF III. New additional
features include lower locking/unlocking torque requirements
and enhanced visual indication of locked/unlocked status.
The ZIF Prime is a totally self-contained precision assembly
that provides a highly effective thermal and mechanical interface
between the circuit board and coldwall. The ZIF Prime retainer
is mounted to a heat frame or directly to the PC board and
provides exceptional thermal performance while allowing the
rapid exchange of electronic circuitry to minimize equipment
downtime.
Primary characteristics of the ZIF family of retainers
include quick and easy installation with a 1/4 turn lock and
unlock, uniform contact area to enable uniform board pressure
and heat transfer, superior thermal performance and capability
to withstand rugged environments.
Standard parts consist of:
Aluminum housing with black anodize
finish
Stainless steel rod with 3/16 in. external hex head,
passivated
Beryllium copper spring, electroless nickel-plated
2-56 screw mounting
Thermal impedance of 0.9° C-in/W (equivalent to
ZIF III)
Direct drop-in for ZIF III parts in terms of performance
and mounting pattern
Same 1/4 turn locking procedure as Standard ZIF and
ZIF III products
Enhanced visual indication method for determining
locked/unlocked part status
Recommended slot width of .300 in. (7.62mm) + PC
board thickness; tolerance ±0.005 in. (0.13mm)
Capable of operating in rugged environments as per
MIL-STD-810
MECHANICAL AND
THERMAL CHARACTERISTICS
3.75 in.
5.25 in.
6.75 in.
(95.25mm)
(133.35mm)
(171.45mm)
Clamping Force
lb. (N)
112 (500)
157 (700)
202 (900)
Retention Force
lb. (N)
60 (265)
83 (370)
107 (480)
0.32
0.23
0.18
Thermal Resistance
°C/W
This table indicates the mechanical and thermal
characteristics of the ZIF Prime based on different
retainer lengths. The values shown are for a pair at nominal
dimensions and can be used as a baseline for design
purposes. ZIF Prime retainers should be tested in final
customer configurations as mechanical interfaces can
impact retainer performance.
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CTS
®
ZIF PRIME SPECIFICATIONS
DIMENSIONAL
SPECIFICATIONS
Part Number
UNLOCKED
LOCKED
“A” DIM
“B” DIM
“C” DIM
ZAP-22-R or ZAP-22-L
2.25 in
(57.15mm)
—
2.00 in
(50.80mm)
ZAP-30-R or ZAP-30-L
3.00 in
(76.20mm)
—
2.75 in
(69.85mm)
ZAP-37-R or ZAP-37-L
3.75 in
(95.25mm)
—
3.50 in
(88.90mm)
ZAP-45-R or ZAP-45-L
4.50 in
(114.30mm)
—
4.25 in
(107.95mm)
ZAP-52-R or ZAP-52-L
5.25 in
(133.35mm)
—
5.00 in
(127.00mm)
ZAP-60-R or ZAP-60-L
6.00 in
(152.40mm)
2.875 in
(73.03mm)
5.75 in
(146.05mm)
ZAP-67-R or ZAP-67-L
6.75 in
(171.45mm)
3.250 in
(82.55mm)
6.50 in
(165.10mm)
ZAP-75-R or ZAP-75-L
7.50 in
(190.50mm)
3.625 in
(92.08mm)
7.25 in
(184.15mm)
A
.25”
6.35mm
.15”
3.81mm
.125”
3.18mm
C
B
All dimensions are in inches unless otherwise noted.
The ZIF Prime consists of three precision manufactured parts — the housing, spring, and rod. The following military
and federal specifications are followed in the manufacture of all ZIF rugged retainers and their components.
FEDERAL
THE MILITARY
QQ-A-200/9, Aluminum Alloy 6063, Bar, Rod, Shapes,
Tube and Wire, Extruded
MIL-A-8625, Anodic Coatings for Aluminum and
Aluminum Alloys
MIL-C-26074, Coatings, Electroless Nickel
MIL-STD-810, Test Method Standard for Environmental
Engineering Considerations and Laboratory Tests
MIL-P-24441/9, Paint, Epoxy-Polyamide, Primer,
Yellow, Formula 158, Type 1
MIL-C-5541, Chemical Conversion Coatings on
Aluminum and Aluminum Alloys
MIL-I-45208, Inspection System Requirements
QQ-S-763, Steel Bars, Wire, Shapes, Forgings,
Corrosion Resistant
QQ-C-533, Copper Beryllium Alloy Strip
QQ-P-35, Passivation of Stainless Steel
Dimensions are for reference use only. Contact CTS for
dimensions with tolerances or standard part drawings.
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