EPP-918A Environmental Protectant
Ruggedized Modular Connectors for Harsh Environments
Stewart’s EPP-918A protectant improves product reliability by providing an unprecedented
level of defense against harsh environmental conditions. In addition to providing superior
moisture, humidity, and corrosion reistance, EPP-918A also shields against wear due to
repetitive mating/unmating forces. By guarding contacts with our patented protective coating,
EPP-918A prolongs the life of contacts within RJ11 and RJ45 jacks despite exposure to
extreme environmental conditions. Once applied (during the manufacturing process), EPP-
918A will not migrate — it adheres to contacts instantly and remains intact without the need
for additional tape, mechanical barriers, or cure time. This characteristic eliminates the added
expense that other barrier methods often entail.
EPP-918A environmental protectant can be used with virtually any Stewart connector product
to increase durability and reliability.
Key Features & Benefits
• Improves durability and reliability for RJ11
and RJ45 jacks
• Prevents corrosion from harsh environmental
conditions
• Withstands high temperature soldering (in
excess of 260° C for 10 seconds)
• Superior resistance to wear and tear during
insertion testing
• Low Level Contact Resistance (LLCR)
testing to 2500 cycles with no measurable
change to gold-plated contacts
• Contains UV tracer for visible inspection of
EPP-918A coating on contacts
• RoHS6 compliant
RoHS
Stewart Connector
11118 Susquehanna Trail South
Glen Rock, PA 17327-9199 USA
© 2015 Bel Fuse, inc.
+1 717.235.7512
techhelp@belf.com
stewartconnector.com
US/LIT-EPP918av05.15
Compliant
EPP-918A Environmental Protectant
Applications
EPP-918A is useful in any application involving harsh environmental conditions and/or a very high
number of mating cycles. Stewart's EPP-918A is suitable for network systems and devices used in:
• Fiber to the Home (FTTH) networks
• Industrial Ethernet networks
• Outdoor network and communications
equipment
•
Military field equipment
• Marine environments
• Warehouse applications
• Mining, oil, and manufacturing applications
• EMT communication devices
• Field test equipment
EPP-918A environmental protectant can be used
with virtually any Stewart connector product to
increase durability and reliability.
Connector Products with EPP-918A
EPP-918A Typical Properties
Property
Color
Specific Gravity
Density
Operating Temp
Range
Water Solubility
Part Number
SS60000-009G
SS60000-007G
SS64000-057G
SS66800-036G
SS70100-011G
SS71800-018G
Contacts
8
8
8
8
8
8
8
Positions
8
8
8
8
10
8
8
Gold Contact Plating
50 micro-inches
50 micro-inches
50 micro-inches
30 micro-inches
30 micro-inches
30 micro-inches
50 micro-inches
Description
Single-port, shielded, right angle jack
Unshielded, vertical jack
Shielded jack with enhanced shield
8-port harmonica, non-flanged jack
Single-port, shielded, micro jack with panel
grounds
Single-port, CAT5/5e jack with panel grounds
12-port, high performance, shielded StackJack
Value
Light Yellow
0.75
0.89
-40° to +85° C
Negligible
Test Method
—
ASTM D-792
ASTM D-1480
—
—
SS73100-050G
RoHS
Stewart Connector
11118 Susquehanna Trail South
Glen Rock, PA 17327-9199 USA
© 2015 Bel Fuse, inc.
+1 717.235.7512
techhelp@belf.com
stewartconnector.com
US/LIT-EPP918av05.15
Compliant