Application Specification
114--1014
Miniature Rectangular (MR)
LOC B
1of 12
E2009 Tyco Electronics Corporation, Harrisburg, PA
All International Rights Reserved
TE logo and Tyco Electronics are trademarks.
*Trademark. Other products, logos, and company names used are the property of their respective owners.
TOOLING ASSISTANCE CENTER 1--800--722--1111
PRODUCT INFORMATION 1--800--522--6752
This controlled document is subject to change.
For latest revision and Regional Customer Service,
visit our website at www.tycoelectronics.com
Contacts and Housings 11 DEC 09 Rev D
All numerical values are in metric units [with U.S. customary units in brackets]. Dimensions are in millimeters [and
inches]. Unless otherwise specified, dimensions have a tolerance of +0.13 [+.005] and angles have a tolerance of +2_.
Figures and illustrations are for identification only and are not drawn to scale.
1. INTRODUCTION
This specification covers the requirements for application of Miniature Rectangular (MR) pin and socket
contacts and housings. These requirements are applicable to hand or automatic machine crimping tools.
When corresponding with Tyco Electronics Personnel, use the terminology provided on this specification to
help facilitate your inquiry for information. Basic terms and features of components are provided in Figure 1.
Figure 1
Pin Contact
Socket Contact
Pin Housing (Cap) Socket Housing (Plug)
Insulation Barrel
Wire Barrel
Alignment Indicator Alignment Indicator
Locking Latch
Locking Latch
Locking
Lance Locking
Lance
2. REFERENCE MATERIAL
2.1. Revision Summary
SUpdated document to corporate requirements
SNew logo and format
2.2. Customer Assistance
Reference Part Number 350967 and Product Code 1381 are representative numbers of the Miniature
Rectangular (MR) Contacts and Housings. Use of these numbers will identify the product line and expedite
your inquiries through a service network established to help you obtain product and tooling information. Such
information can be obtained through a local Tyco Electronics Representative or, after purchase, by calling the
Tooling Assistance Center or the Product Information numbers at the bottom of this page.
2.3. Drawings
Customer Drawings for specific products are available from the responsible Tyco Electronics Engineering
department via the service network. The information contained in the Customer Drawings takes priority if there
is a conflict with this specification or with any other technical documentation supplied by Tyco Electronics.
2.4. Product Specifications
Product Specification 108--1022 provides product performance and test information.
NOTE
i
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D2 of 12 Tyco Electronics Corporation
2.5. Instructional Material
The following list includes available instruction sheets (408--series) that provide assembly procedures for
product, operation, maintenance and repair of tooling; and customer manuals (409--series) that provides setup,
operation, and maintenance of machines.
Document Number Document Title
408--2498 Crimping Head Cross Reference for Pneumatic Tools
408--3295 Preparing Reel of Contacts for Application Tooling
408--4106 Straight Action Crimp Head Adapter 217201--1
408--4190 C--Head Pneumatic Adapter
408--4321 Pneumatic CERTI--CRIMP* Tool Holder 356304--1
408--7424 Checking Terminal Crimp Height or Gaging Die Closure
408--7749 Hand Crimping Tool 90326--1
408--7984 Insertion Tool 455830--1
408--8040 Heavy Duty Miniature Quick--Change Applicators (Side--Feed Type) with Mechanical
408--8059 General Preventive Maintenance for Applicators
408--8620 Service Hand Tool 696202--1
408--9570 Extraction Tool 455822--2 for Miniature Rectangular (MR) Contacts
408--9640 Crimp Quality Monitor Applicators for Side--Feed and End--Feed Applications
408--9816 Handling of Reeled Products
408--9930 PRO--CRIMPER* III Hand Crimping Tool Frame Assembly 354940--1
408--9973 PRO--CRIMPER III Hand Tool Assembly 58514--1 with Die Assembly 58514--2
409--5128 Basic AMP--O--LECTRIC* Model “K” Terminating Machine 565435--5
409--5842 AMP--O--LECTRIC Model “G” Terminating Machines 354500--[ ]
409--5852 AMPOMATOR* CLS III--G Lead Making Machine 122500--[ ]
409--5862 626 Pneumatic Tooling Assemblies 189721--[ ] and 189722--[ ]
409--5866 AMPOMATOR CLS IV Lead--Making Machine 217500--[ ]
409--5878 AMPOMATOR CLS IV+ Lead--making Machine 356500--[ ]
409--10012 AMP--O--MATIC* Side Feed Stripper--Crimper III Machine 1320895--[ ]
409--10016 Entry Level Terminator (ELT) Machine 1338600--[ ]
409--10027 Stripping Modules 1490500 and 1490502
409--10029 Stripping Modules 1490501 and 1490503
3. REQUIREMENTS
3.1. Storage
A. Ultraviolet Light
Prolonged exposure to ultraviolet light may deteriorate the chemical composition used in the connector
housing material.
B. Reel Storage
When using reeled contacts, store coil wound reels horizontally and traverse wound reels vertically.
C. Shelf Life
The contacts should remain in the shipping containers until ready for use to prevent deformation to the
contact. The contacts should be used on a first in, first out basis to avoid storage contamination that could
adversely affect signal transmissions.
D. Chemical Exposure
Do not store contacts near any chemicals listed below as they may cause stress corrosion cracking in the
contacts.
Alkalies Ammonia Citrates Phosphates Citrates Sulfur Compounds
Amines Carbonates Nitrites Sulfides Nitrites Tartrates
Where the above environmental conditions exist, phosphor--bronze contacts are recommended.
3.2. Wire Selection and Preparation
A. Wire Selection
The contacts will accept stranded wire sizes 18 through 26 AWG. Wire insulation minimum and maximum
diameters shall be as indicated in Figure 2.
NOTE
i
114- 1014
Miniature Rectangular (MR) Contacts and Housings
Rev D 3 of 12Tyco Electronics Corporation
B. Wire Preparation
The wire strip length shall be as indicated in Figure 2.
The applied crimp dimension (within the functional range of the product) is dependent on the termination tooling being
used. Refer to the documentation (applicator logs and instruction sheets) supplied with the termination tooling for the
applied crimp height. See Section 5, TOOLING.
DO NOT nick, scrape, or cut the wire conductor during the stripping operation.
Strip
Length
Conductor Insulation
AUTOMATIC MACHINE WIRE CRIMP DIMENSIONS
CONTACT TYPE WIRE WIRE BARREL CRIMP INSUL BARREL CRIMP
PIN SOCKET SIZE INSUL DIA
RANGE
STRIP
LENGTH
HEIGHT
RANGE
WIDTH
(REF)
HEIGHT
(MAX.) WIDTH
18 1.22--1.12
[.048--.044]
20 1.27--2.92
[.050--.115]
4.34--3.58
[.171--.141]
1.09--0.99
[.043--.039] 1.40 [.055] 3.12 [.123] 3.05 [.120]
LIVE
SPLIT SOLID 22--24
[
0
5
0
5
]
[
]
0.91--0.81
[.036--.032]
S
26 1.27--2.92
[.050--.115] 4.34--3.58 0.84--0.74
1
4
0
[
0
5
5
]
3
1
2
[
1
2
3
]
3.05 [.120]
24--26 0.64--1.27
[.025--.050]
4
.
3
4
3
.
5
8
[.171--.141]
0
.
8
4
0
.
7
4
[.033--.029] 1.40
[
.055
]
3.12
[
.123
]
1.78 [.070]
HAND TOOL WIRE CRIMP DIMENSIONS
CONTACT TYPE WIRE WIRE BARREL CRIMP INSUL BARREL CRIMP
PIN SOCKET SIZE INSUL DIA
RANGE
STRIP
LENGTH
HEIGHT
RANGE
WIDTH
(REF)
HEIGHT
(MAX.) WIDTH
18--20 1.27--2.92
[
0
5
0
1
1
5
]
1.02--0.92
[.040--.036] 3.05
[
.120
]
LIVE
S
P
L
I
T
SOLID 22--26 [.050--.115] 4.34--3.58
[
1
7
1
--
1
4
1
]
0
7
6
0
6
6
1.40 [.055] 3.12 [.123]
3
.
0
5
[
.
1
2
0
]
S
P
L
I
T
24--26 0.64--1.27
[.025--.050]
[
.
1
7
1
-- .
1
4
1
]
0.76--0.66
[.030--.026]
[
]
[
]
1.78 [.070]
Figure 2
3.3. Crimped Contact Requirements
The contact shall be located in desired tooling and crimped according to the instructions packaged with that
tooling. See Section 5, TOOLING, of this document for details on tooling options and instructional materials.
Wire insulation shall NOT be cut or broken during the crimping operation, nor shall the insulation be crimped into the
contact wire barrel. Reasonable care should be taken by tooling operators to provide undamaged wire terminations.
NOTE
i
CAUTION
!
CAUTION
!
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D4 of 12 Tyco Electronics Corporation
A. Wire Barrel Crimp
The crimp applied to the wire portion of the contact is the most compressed area and is most critical in
ensuring optimum electrical and mechanical performance of the crimped contact. The contact wire barrel
crimp height must be within the dimension provided in Figure 2.
B. Effective Crimp Length
For optimum crimp effectiveness, the crimp must be within the area shown and must meet the crimp
dimensions provided in Figure 3. Effective crimp length shall be defined as that portion of the wire barrel,
excluding bellmouth(s), fully formed by the crimping tool. Instructions for adjusting, repairing, and
inspecting tools are packaged with the tools. See Section 5, TOOLING.
C. Bellmouths
Front and rear bellmouths shall be evident and conform to the dimensions given in Figure 3.
Figure 3
Cutoff Burr 0.13
[.005] Max.
Cutoff Tab
0.25 [.010]
Max.
0.25 [.010]
Max Wire
Barrel Flash
Section X- X
Wire Barrel
Crimp Width
Wire Barrel
Crimp Height
Flush to 0.6 [.020]
Crimp
Location
Wire Insulation and
Conductors Must Both
BeVisibleInThisArea
No Insulation
in Seam
Front Bellmouth
0.0--0.25
[.000--.010]
Rear Bellmouth
0.13--0.76
[.005--.030]
X
X
Wire Barrel Closed at Seam with
No Strands Protruding or Showing
D. Cutoff Tabs
The cutoff tab shall be cut to the dimensions shown in Figure 3.
E. Burrs
The cutoff burr shall not exceed the dimensions shown in Figure 3.
114- 1014
Miniature Rectangular (MR) Contacts and Housings
Rev D 5 of 12Tyco Electronics Corporation
F. Wire Barrel Flash
The wire barrel flash shall not exceed the dimensions shown in Figure 3, Section X--X.
G. Insulation Barrel Crimp
The insulation barrel shall grip the insulation firmly without cutting into it. Care must be taken to prevent
cutting, nicking, or scraping of the insulation. Insulation crimp shall comply to width and height provided in
Figure 3.
H. Wire Location
The wire conductor and insulation must be visible in the transition area between the wire and insulation
barrels.
I. Conductor Extension
The conductor may extend beyond the wire barrel to the maximum shown.
J. Wire Barrel Seam
The wire barrel seam must be closed with no evidence of loose wire strands visible in the seam.
K. Twist and Roll
There shall be no twist, roll, deformation or other damage to the mating portion of the crimped contact that
will impair usage of the contact. See Figure 4.
Figure 4
Wire Barrel
Front of Contact
No Twist Permitted
L. Axial Concentricity
Periodic inspections must be made to ensure crimped contact formation is consistent as shown.
1. Crimped insulation barrel shall fall into an area defined by a 3.43 mm [.135 in.] diameter circle whose
center is the centerline of the contact as shown in Figure 5.
2. There shall be no twist or roll in crimped portion that will impair usage of the contact.
Figure 5
3.43 [.135] Diameter
NOTE
i
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D6 of 12 Tyco Electronics Corporation
3.4. Housings
The connector assembly consist of a pin housing (cap) that accepts pins (live split); and socket housing (plug)
that accept socket (solid) contacts. Both the plug and cap housing assemblies have individually numbered
circuit identification on the back surface and are available in 2 through 36 circuit positions. See Figure 6.
Figure 6
Pin Housing (Cap) Socket Housing (Plug)
Back of
Housings
Numbered Cavities
A. Assembly
Crimped pin and socket contacts shall be manually inserted in the rear of their respective housings. Insert
contacts and join housing sections together as shown in Figure 7.
Align contact with desired circuit cavity at BACK of rear housing section. Push contact straight into cavity
until a tactile and audible “click” is heard. When all necessary contacts have been inserted, complete
assembly of the connector by mating the housing latches into the fully locked position. See Figure 7.
B. Disassembly
Depress both locking latches, pull apart to separate the housings.
Figure 7
Depress Locking
Latches and Pull
Apart to Separate
Housings
114- 1014
Miniature Rectangular (MR) Contacts and Housings
Rev D 7 of 12Tyco Electronics Corporation
3.5. Panel Cutout Requirements
Typical panel cutout dimensions shown in Figure 8. See customer drawings for other panel cutout variations.
Figure 8
Slot for Locking Tab
(Typical 2 Places)
Panel Thickness
1.73 [.068] Max.
19.30
[.760]
5.28 [.208]
8.76 [.345]
12.07 [.475]
16.00 [.630]
19.94 [.785]
NOTE: Typical 6 position panel cutout
shown. For other panel cutout dimensions,
see customer drawings.
3.6. Polarization
The housings possess, ribs and slots which prohibit accidental inversion of a mating connector.
3.7. Ancillary Items
Contact the Product Information Center number at the bottom of page 1 for information on the following
optional items.
A. Keying Plugs
Keying plugs are used in the plug housing to provide connector identification and polarization.
B. Commoning Bars
Commoning bars are used to common adjacent circuits of any row.
C. Strain Relief
Strain relief clamps are used to prevent stress on contacts caused by large wire bundles.
D. Grommets
Grommets are used with a strain relief clamp when a housing is NOT fully loaded and/or wire bundle is
small.
3.8. Repair/Replace
Use Extraction Tool 455822--2 to remove individual contacts from housings for replacement or for relocation to
another housing cavity. Damaged or worn contacts may be replaced provided there is sufficient slack, after
restripping the wire, to insert the new contact.
DO NOT re--use damaged or worn contacts. Instead, replace them with new contacts and discard the old ones.
4. QUALIFICATIONS
Miniature Rectangular (MR) pin and socket contacts and housings are Recognized by Underwriters
Laboratories Inc. (UL) in File E28476, and Certified with CSA International in File LR7189.
5. TOOLING
Figure 9 provides tool part numbers and instructional material related to wire size.
CAUTION
!
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D8 of 12 Tyco Electronics Corporation
Tyco Electronics Tooling Engineers have designed machines for a variety of application requirements. For assistance
in setting up prototype and production line equipment, contact Tyco Electronics Tool Engineering through your local
Tyco Electronics Representative or call the Tooling Assistance Center number at the bottom of page 1.
SHand Tool
Hand crimping tools that accommodate the full wire size range are designed for prototype and
low--volume applications such as repair of damaged contacts.
SApplicator
Applicators are designed for the full wire size range of strip--fed, precision formed contacts, and provide
for high volume, heavy duty, production requirements. The applicators can be used in bench or floor
model power units.
Each applicator is shipped with a metal identification tag attached. DO NOT remove this tag or disregard the
information on it. Also, a packet of associated paperwork is included in each applicator shipment. This information
should be read before using the applicator; then it should be stored in a clean, dry area near the applicator for future
reference. Some changes may have to be made to the applicators to run in all related power units. Contact the Tooling
Assistance Center number located at the bottom of page 1 for specific changes.
SPower Units
A power unit is an automatic or semi--automatic device used to assist in the application of a product.
Power unit includes the power source used to supply the force or power to an applicator.
SInsertion/Extraction Tooling
Insertion Tools are designed for contacts crimped to small fragile wire. They are designed to stabilize the
contact during insertion. For use of Insertion Tool 455830--1 which may be used with these contacts,
refer to Instruction Sheet 408--7984. Extraction Tools are designed to release the locking lance inside
the connector housing without damaging the housing or contacts. For use of Extraction Tool 455822--2
which may be used with these contacts, refer to Instruction Sheet 408--9570.
SHead
A head fits into an applicator or hand tool and holds a die used for crimping the product.
SDies
A tooling component used in conjunction with an applicator or hand tool to apply product.
SHolder
A component used to hold the head and dies in the power assembly or hand tool.
WIRE SIZE TOOLING
AWG INSUL DIA APPLICATOR POWER UNIT HAND TOOL PNEUMATIC TOOLING (DOCUMENT)
A
G
RANGE
I
N
S
U
L
D
I
A
RANGE
A
P
P
L
I
C
A
T
O
R
(DOCUMENT)
P
O
E
R
U
N
I
T
(DOCUMENT)
H
A
N
D
T
O
O
L
(DOCUMENT) HAND TOOL HEAD DIES HOLDER
122500--2, --3
(409--5852)
466352--1
(408--8040)
217500--1, --2
(409--5866)
9
0
3
2
6
1
(
)
356500--1, --2
(409--5878)
90326--1
(408--7749)
o
r
189721--1
(408--2498)
(
4
0
9
5
8
6
2
)
189928--1
(
4
0
8
--
2
4
9
8
)
24--26 0.64--1.27
[.025--.050]
354500--1
(409--5842)
o
r
58514--1
(408--9973)
(
)
(409--5862)
or
189722--1
217201--1
(408--4106)
90326--2
(------)
(
4
0
8
--
2
4
9
8
)
(409--4190)
or
3
5
6
3
0
4
1
466352--2
(408--8040)
565435--5
(409--5128)
or
696202--1
(
408--8620
)
1
8
9
7
2
2
-
-
1
(408--2498)
(409--5862)
(
)
(
)
356304--1
(408--4321)
(
)
1338600--3, --4
(409--10016)
(
4
0
8
-
-
8
6
2
0
)
466916--1
(408--8040)
1320895--1, --3
(409--10012)
Figure 9 (cont’d)
NOTE
i
NOTE
i
114- 1014
Miniature Rectangular (MR) Contacts and Housings
Rev D 9 of 12Tyco Electronics Corporation
WIRE SIZE TOOLING
AWG INSUL DIA APPLICATOR POWER UNIT HAND TOOL PNEUMATIC TOOLING (DOCUMENT)
A
G
RANGE
I
N
S
U
L
D
I
A
RANGE
A
P
P
L
I
C
A
T
O
R
(DOCUMENT)
P
O
E
R
U
N
I
T
(DOCUMENT)
H
A
N
D
T
O
O
L
(DOCUMENT) HAND TOOL HEAD DIES HOLDER
122500--2, --3
(409--5852)
466351--1
(408--8040)
217500--1, --2
(409--5866)
356500--1, --2
(409--5878)
354500--1
(409--5842)
466351--2, --3
(408--8040)
565435--5
(409--5128) 189721--1
(408--2498) 189928--1
(
4
0
8
--
2
4
9
8
)
26--18 1.27--2.92
[.050--.115]
1338600--3, --4
(409--10016)
91526--1
(------)
(
0
8
9
8
)
(409--5862)
or
189722--1
217201--1
(408--4106)
90325--2
(------)
(
4
0
8
--
2
4
9
8
)
(409--4190)
or
3
5
6
3
0
4
1
466351--4
354500--[ ]
(409--5842)
1
8
9
7
2
2
-
-
1
(408--2498)
(409--5862)
356304--1
(408--4321)
4
6
6
3
5
1
4
(408--8040) 1338600--[ ]
(409--10016)
466913--1
(------)
1320895--1, --3
(409--10012)
567658--2
(408--8040)
354500--5
(409--5842)
567832--1
(------)
1320895--2, --4
(409--10012)
Figure 9 (cont’d)
Typical Straight Action
Hand Crimping Tool
Typical
PRO--CRIMPER
Hand Tool with
Die Assembly
Service Hand
Tool 696202--1
CERTI--CRIMP II
Straight Action Hand
Tool 91526--1
Insertion Tool
455830--1
Extraction Tool
455822--2
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D10 of 12 Tyco Electronics Corporation
Figure 9 (cont’d)
Typical Quick--Change
Miniature Applicator
AMP--O--LECTRIC Model “K”
Terminating Unit 565435--5
AMP--O--LECTRIC Model “G”
Terminating Machine 354500--[ ]
with Optional Stripping Module
1490501--[ ]
ELT Machine 1338600--[ ]
with Optional Stripping
Module 1490500--[ ]
AMPOMATOR CLS
Lead--Making Machines
122500--[ ]; 217500--[ ];
356500--[ ]
AMP--O--MATIC Side Feed
Stripper--Crimper II
Machine 1320895--[ ]
114- 1014
Miniature Rectangular (MR) Contacts and Housings
Rev D11 of 12Tyco Electronics Corporation
Figure 9 (end)
Straight Action Crimping
Head Adapter 217201--1
Tool Holder
Assembly
189928--1
Typical Crimping
Head Assembly
with Dies
Pneumatic CERTI--CRIMP
Tool Holder 356304--1
Hand Non--Logic
Power Unit 189721--1
Foot Non--Logic
Power Unit
189722--1
114- 1014MIniature Rectangular (MR) Contacts and Housings
Rev D12 of 12 Tyco Electronics Corporation
6. VISUAL AID
Figure 10 shows a typical application of a Miniature Rectangular (MR) Contact and Housing. This illustration
should be used by production personnel to ensure a correctly applied product. Applications which DO NOT
appear correct should be inspected using the information in the preceding pages of this specification and in the
instructional material shipped with the product.
FIGURE 10. VISUAL AID
ALIGNMENT MARKS
MUST BE ALIGNED
WIRE BARREL SHALL BE CLOSED
AT THE SEAM WITH NO STRANDS
PROTRUDING OR SHOWING
NO BURRS ON
CUTOFF TAB
WIRE STRANDS AND INSULATION
SHALL BOTH BE VISIBLE IN THIS AREA
BELLMOUTH MUST
BE VISIBLE
CONTACT MUST
BE STRAIGHT
WIRE MUST BE FLUSH WITH
END OF WIRE BARREL, OR
PROTRUDE SLIGHTLY
LOCKING LATCHES
AND TABS MUST BE
SECURELY FASTENED
CONTACTS MUST
BE FULLY LATCHED
IN HOUSINGS
HOUSINGS MUST
NOT BE DAMAGED