Amphenol
®
Micro Bayonet Connector
Micro-B
TM
www.amphenol-industrial.com
www.amphenol-industrial.com
Amphenol
Company Introduction
Amphenol Industrial Products Group
The Amphenol Industrial Products Group (AIPG), a division
of the Amphenol Corporation, is a prominent manufacturer
of cylindrical connectors known around the world. Amphenol
Industrial’s product lines consist of rectangular, standard
miniature, fiber optic, EMI/EMP filter, and a variety of special
application connectors.
Manufacturing connectors since 1932, we take pride that the
Amphenol Industrial Products Group is the undisputed leader
in interconnect systems for harsh environment applications.
Innovations like our RADSOK® contact technology can
provide roughly 50% more current through the same size pin.
Connectors utilizing this RADSOK® technology will outperform
similar products in the market hands down.
The Sidney, NY facility, nestled at the foothills of the Catskill
Mountains, is over 307,000 square feet (28,521m²). This
complex houses over 1,000+ employees incorporating state-of-
the-art manufacturing technologies. The facility is both ISO9001
certified and qualified to MIL-STD-790 requirements.
Amphenol Technology (Zhuhai)
Established in 2007, Amphenol Technology (Zhuhai) Co., Ltd.
is a manufacturing facility for the Amphenol Industrial Products
Group, which serves a number of industrial markets, included
but not limited to Factory Automation, Transportation, Heavy
Equipment, Alternative Energy, Oil & Gas, Server/Data Comm
and Power Distribution.
Amphenol Technology (Zhuhai) Co., Ltd. covers an area of
306,449 square feet (28,470m²) and is equipped with CNCs,
plating, injection molding and assembly workshops. This
plant specializes in the design and manufacturing of industrial
connectors featuring high power, high density inserts,
medium to high voltage electrical properties, and harsh
environment applications.
Many of the products produced here have been certified by
independent standards including UL, IEC/TUV, ATEX, IECEx
and MA. The facility is also certified to ISO 9001, ISO 14001
and TS16949.
Table of Contents
Micro-B Product Introduction
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2
Market Application
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3
Technical Specifications ...........................
4
Insert Arrangements ................................. 5
Keying ...................................................... 5
Shell Styles ..............................................
6
Shell Dimensions ......................................
7
How to Order
............................................
8
Contacts ...................................................
9
Accessories ............................................
10
Tools ......................................................
12
Crimp Instructions ..................................
13
Cable Assembly Instructions
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14
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Amphenol
Micro-B
TM
Product Introduction
Amphenol Industrial offers a high performance circular connector product range developed for industrial applications where
electrical performance must be met with affordability. High mating cycles along with excellent shell-to-shell electrical bonding
for EMI are the benchmark of rugged connectors. Amphenol’s new Micro-Bayonet series provides the solution that meets
your budget and performance goals.
DOCUMENT NO.
Micro-B meets the requirements of today’s electrical
equipment for a connector with a small footprint, light in
weight, high density insert patterns, exceptional shell-to-
C
shell electrical EMI shielding, and high reliability.
REV.
Micro-B meets all RoHS requirements. With Gray ZnNi
Plating, Micro-B can withstand up to 500 hours salt spray
without corrosion detrimental to its operation.
B
DOCUMENT NO.
Features and Benefits
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Aluminum shell construction provides high strength
while being light in weight
Stamped and formed crimp contacts, easy for
cable assembly
¼ turn positive bayonet coupling, quick coupling
Multiple shell plating options (up to 500H salt spray
protection)
Excellent shell-to-shell EMI shielding
High shock and high vibration resistance
Meets Smoke, Toxicity and Flammability Requirements
A
NOTES:
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION AND
SUCH INFORMATION MAY NOT BE DISCLOSED TO OTHERS FOR
ANY PURPOSE OR USED FOR MANUFACTURING PURPOSES
WITHOUT WRITTEN PERMISSION FROM THE AMPHENOL CORP.
DOCUMENT NO.
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SHEET 1 OF 1
Operating temperature range: -40°C~125°C
Protection up to IP67 when in the mated condition
2
1
with Backshell
3
5 Key/keyway mating
EMI shielding backshell option
High density
Compact
PCB Tail contact option is available
UL certifications in process
SIZE
CAGE CODE
DOCUMENT NUMBER
REV
C
REV
.
SCALE: 2:1
REF:
SHEET 1 OF 1
2
SHEET 1 OF 1
REV.
SHEET 1 OF 1
4
3
2
Made from an aluminum shell, Micro-B utilizes a robust triple bayonet coupling (1/4 turn mating) mechanism and stamped
& formed contacts. An internal EMI grounding spring is used to provide exceptional shell-to-shell conductivity. Various
mounting options are available including in-line and 2-hole flange mount configurations.
REV.
DOCUMENT NO.
D
SHEET 1 OF 1
C
A
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Amphenol
Market Application
Widely used in general and hash environments, Micro-B is suitable for markets using signal
connections including but not limited to the following:
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IFE & C
Telecommunications
Hybrid/Electric Vehicle
Robotics/Factory Automation
Industrial Instrumentation
Security
Test equipment
Micro-B
™
3
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Amphenol
Technical Specifications
Shell Material
EMI-Ring
Retaining Ring
Wave Ring
Insert Material
Contact
Temperature Range
Ingress Protection
Test Current
Recommended Operating Voltage
Test Voltage
Insulation Resistance
Contact Resistance
Mating Cycles
Vibration
Thermal Shock
Salt Spray
RoHS
Aluminum
Copper Alloy
Stainless steel
Stainless steel
Plastic (PA66)
Material
Plating
Termination
-40°C ~ 125°C
With Heat Shrink, the ingress protection is IP54 in the mated
condition.With Cable Gland Backshell, the ingress protection level
increases to IP67 in the mated condition.
#22D Contact 3A
AC 250V RMS
AC 500V RMS
500V, 5000MΩ Min
22mΩ Max
500 Cycles (30µ Gold Plated, Selective Area on Contacts)
300 Cycles ( Tin/Gold Plating 10µ, Selective Area on Contacts)
100 Cycles (Gold Flash on Contacts)
In accordance with test procedure EIA-364-28D
In accordance with test procedure EIA-364-32D
1. Gray ZnNi (Conductive): 500H
2. Electroless Nickel (Conductive): 48H
Compliant
Copper Alloy
Tin/Gold Plated
Crimp
4
