10-503140-032 Datasheet, PDF (338/437 Pages) Amphenol Corporation – The Interconnection Leader

Transient Protection
ESA – Energy Shunting Assembly
Amphenol
Aerospace
The Amphenol ^® Energy Shunting Assembly (ESA) is a simple,
compact unit which provides lightning and electromagnetic pulse
(EMP) protection of systems in which many signal lines enter sensitive
electronic equipment. The efficient packaging of the ESA circumvents
the concept of one protective device per line. It provides a surge
arrestor which has the advantage of space saving and simplified
assembly when compared to current protective devices which range
from diodes to large spark gaps.
The current ESA design consists of two 53-pin contact,
Mil-Standard, hermetic connectors assembled back to back, and
encompassing a ground plate. A sealed chamber is formed within this
thru-bulkhead unit, housing 53 in-line spark gaps. Introducing a
controlled atmosphere enhances fast rise breakdown.
The ESA can be integrated with an EMI filter connector which can
improve its performance. These two assemblies provide a method to
help protect against lightning, EMP, EMI and TEMPEST effects.
ESA Energy Shunting Assembly
Performance Characteristics
1. DC breakdown voltage
2. Maximum rated surge discharge current (8 x 20 microsecond pulse)
3. Insulation resistance
4. Capacitance between each electrode and the ground plane
5. Rate-of-rise breakdown voltage
Maximum Breakdown
Voltage (Volts)
600
800
1,500
2,000
6. Surge breakdown unbalance (at 100 Volts/microseconds)
7. Surge life (500 Ampere – 10 x 1,000 microsecond)
8. Hold-over voltage
9. Arcing voltage
10. Glow to arc transition point
11. Temperature range
230 Volts
5,000 Amperes per pin
10¹⁰ ohms minimum
Less than 2 pf
Rate of Rise
(Volts/microsecond)
10
1,000
10,000
1000,000
180 Volts
400 Surges
100 Volts
40 Volts
1 Ampere
–40°F to 150°F
(233°K to 339°K)
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com 337