D38999/26WJ35PN Amphenol, D38999/26WJ35PN Datasheet - Page 177

• Manufacturer Part Number: D38999/26WJ35PN
• Description: Circular MIL / Spec Connectors 128P SIZE 25 STRAIGHT PLUG PIN
• Manufacturer: Amphenol
• Series: 38999 Seriesr

Specifications of D38999/26WJ35PN

• Mil Type: MIL-DTL-38999 III
• Product Type: Connectors
• Contact Style: Pin (Male)
• Shell Style: Plug
• Shell Size: 25
• Number Of Contacts: 128
• Insert Arrangement: 25-35
• Mating Style: Threaded
• Mounting Style: Cable
• Termination Style: Crimp
• Shell Plating: Cadmium over Aluminum
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

176
Amphenol
Contact Amphenol Aerospace for more information 800-678-0141 • www.amphenol-aerospace.com
The Amphenol
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.
Aerospace
Performance Characteristics
®
2. Maximum rated surge discharge current (8 x 20 microsecond pulse)
Energy Shunting Assembly (ESA) is a simple,
5. Rate-of-rise breakdown voltage
4. Capacitance between each electrode and the ground plane
6. Surge breakdown unbalance (at 100 Volts/microseconds)
7. Surge life (500 Ampere – 10 x 1,000 microsecond)
10. Glow to arc transition point
1. DC breakdown voltage
3. Insulation resistance
11. Temperature range
8. Hold-over voltage
9. Arcing voltage
Maximum Breakdown
Voltage (Volts)
ESA – Energy Shunting Assembly
1,500
2,000
600
800
ESA
Energy Shunting Assembly
Transient Protection
5,000 Amperes per pin
10
(Volts/microsecond)
(233°K to 339°K)
–40°F to 150°F
10
Less than 2 pf
Rate of Rise
400 Surges
ohms minimum
1 Ampere
1000,000
230 Volts
180 Volts
100 Volts
40 Volts
10,000
1,000
10