APPLICATION SPECIFICATION
MOLEX MINI 50 0.50mm CONNECTOR SYSTEM
APPLICATION SPECIFICATION
REVISION:
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ECR/ECN INFORMATION: TITLE:
EC No:
SHEET No.
Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
DOCUMENT NUMBER:
AS-34791-020
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APPLICATION SPECIFICATION
REVISION
D
MODIFICATION
Added 12ckt information
SHEET
DATE
2013/07/24
Added 12 circuit option information
Added CPA option information
E
2014/02/05
Added note concerning hinge cracking/breaking
F
Added service instructions for 4 & 8 circuit connector and SMT
header
2014/05/22
G
Adding 16, 20 and 24 ways
2015/09/30
H
2016/03/30
Added Best Practices and Troubleshooting section
I-J
K
K1
K2
Revision not identify by ECTR release process
Added Electrical probes location
Added disclaimer regarding pre-seated CPA
Release Error
Adding 2Way connector
Adding terminal servicing tool
L
24 - 25
7
2017/02/16
2017/06/06
2017/06/20
3-4
22-23
2017/10/19
TABLE OF CONTENTS:
Section 1.0/////////SCOPE, pg.3
Section 2.0/////////PRODUCT DESCRIPTION, pg. 3
Section 3.0/////////REFERENCE DOCUMENTS, pg.5
Section 4.0/////////PROCEDURE, pg.6
Section 5.0/////////BEST PRACTICES / TROUBLESHOOTING, pg.26
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Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
DOCUMENT NUMBER:
AS-34791-020
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APPLICATION SPECIFICATION
1. SCOPE
This procedure applies to all part numbers in the single row series 34791, 34792, 34793, and dual
row series 34824, 34825, 34826
2. PRODUCT DESCRIPTION
•
•
0.50mm terminal system with 1x4, 1x8 and Dual Row 12, 16, 20 and 24 Way
4 polarization options for the 1x4 system and 3 polarization option for the 1x8, dual row 12, 16,
20 and 24 Way systems
Wire range 0.08mm2 -- 0.35mm2 AS-34791-020
Utilizes the Molex CTX terminal series 560023
•
•
RECEPTACLES
4 ckt
8 ckt
16 ckt
12 ckt
24 ckt
20 ckt
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Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
DOCUMENT NUMBER:
AS-34791-020
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APPLICATION SPECIFICATION
Vertical
HEADERS
4 ckt
8 ckt
12 ckt
16 ckt
20 ckt
24 ckt
Right Angle
------------------------------------------------------------------------------------------------------------------------------------
REVISION:
L
4 ckt
8 ckt
12 ckt
16 ckt
20 ckt
24 ckt
ECR/ECN INFORMATION: TITLE:
EC No:
SHEET No.
Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
DOCUMENT NUMBER:
AS-34791-020
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APPLICATION SPECIFICATION
3. REFERENCE DOCUMENTS
Single Row Sales Drawing:
Receptacle – SD-34791-001
Header (Vertical) – SD-34792-001
Header (Right Angle) – SD-34793-001
Dual Row Sales Drawing:
Receptacle – SD-34824-002
Header (Vertical) – SD-34825-001
Header (Right Angle) – SD-34826-001
Single/Dual Row CPA Option Sales Drawing:
Receptacle – SD-34824-003
Connector System Product Specification:
PS-34791-020
Packaging Drawing:
Receptacle – PK-31301-538
Header – PK-31301-440
Terminal System:
CTX50 Terminal Drawing – SD-560023-002
CTX50 Product Specification – PS-560023-001
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ECR/ECN INFORMATION: TITLE:
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Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
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APPLICATION SPECIFICATION
4. PROCEDURE
A.
Connector “As Shipped”
Connector ISL shown in “as shipped” condition (open). The ISL must remain in the open position
until all circuits are loaded.
B.
ISL “lift to open”
ISL must be in pre-lock position to populate the connector. If during shipping the Connector ISL
moves from its pre-lock position. Simply slide a small screwdriver (width 2-2.5mm) behind the latch
on each side of the connector and pry to open the ISL
IF THE ISL OR HOUSING IS DAMAGED IN ANY WAY, DO NOT USE THE CONNECTOR
Pry gently here
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
C.
Terminal Installation
There is a very low probability that a CPA will seat during transit. If this occurs, DO NOT populate
the connector. Please scrap that specific connector. Otherwise, with ISL still in pre-lock position,
orient the terminal to the rear of connector as shown below. Grip the wire behind the terminal
insulation crimp and insert it through the appropriate circuit opening. If resistance is encountered,
retract the terminal and adjust the angle of insertion. Continue inserting the terminal until it stops
and locks up on the lock finger with an audible click or tactile feedback.
ISL MUST BE IN OPEN POSITION TO POPULATE THE CONNECTOR
12ckt receptacle shown
above as reference.
The 16, 20, and 24ckt
receptacles have similar
circuit IDs
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Molex MINI 50 0.50mm Connector System
Application Specification
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AS-34791-020
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APPLICATION SPECIFICATION
C.
Terminal Installation (continued)
Installing a terminal correctly will have low effort.
Improperly installing a terminal 180° will lead to a high effort and wire buckle.
Terminal improperly inserted 180°
NOTE WIRE BUCKLE
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
D.
Closing the ISL
Once all terminals are installed:
1.) Perform a visual check to confirm terminals are fully seated and in the correct position
2.) Close the ISL by applying force to the hinged portion of the connector
3.) The ISL will “click” into its final position
4.) Gently pull down on the front of the ISL to confirm it is properly closed
1.
2.
Visually check for
fully seated
terminals
4.
3.
CLICK
Gently pull down here to
confirm ISL is properly
NOTE REGARDING THE ISL:
WHILE CYCLING THE HINGE, THE USER MAY
NOTICE STRESS LINES OR DELAMINATION IN THE
AREA SHOWN BELOW. THIS WILL NOT AFFECT
THE FUNCTION OF THE CONNECTOR IN ANY
WAY. THE ISL WILL CONTINUE TO FUNCTION 100%
EVEN IF THE HINGE IS COMPLETELY SEPERATED
FROM THE CONNECTOR BODY.
Stress lines or delamination in
this area of the hinge may be
noticed, but it will not affect
the function of the ISL
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Application Specification
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E.
Detecting a partially installed terminal
The ISL will not close with a partially installed terminal. If the ISL will not close, confirm all
terminals are fully installed. The operator will not be able to mate the connector to the header if the
ISL is not closed.
DO NOT FORCE THE ISL CLOSED WHEN THERE ARE PARTIALLY INSTALLED TERMINALS
OR DAMAGE TO THE TERMINAL AND CONNECTOR ISL MAY OCCUR
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
F.
Connector Mating
To properly mate the connector:
1.) First align the keying features from the receptacle connector to the mating header
2.) Slide the receptacle connector fully into the header assembly until you hear an audible “click”
Align keying
features between
receptacle and
header
1.
2.
CLICK
If resistance is encountered during mating, confirm the ISL is fully locked and all terminals are fully
installed (See Section E. Detecting a partially installed terminal).
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
F.
Connector Mating (continued)
Never mate the system at an angle or with bias. This may cause damage to the header or
connector.
-----------------------------------------------------------------------------------------------------------------------------------Always push on the connector housing while mating.
DO NOT PUSH ON THE LATCH WHILE MATING
-----------------------------------------------------------------------------------------------------------------------------------When mating the connector with a CPA:
1.) Align the connector and push evenly on the connector body to mate.
DO NOT PUSH ON THE CPA DURING THE MATING PROCESS.
2.) After mating the connector, push on the CPA to engage.
3.) Check to ensure the CPA is fully seated.
1.
REVISION:
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3.
2.
ECR/ECN INFORMATION: TITLE:
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Molex MINI 50 0.50mm Connector System
Application Specification
DATE:
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AS-34791-020
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G.
Connector Un-mating
To un-mate the connectors, push connectors together to unload the latch system, then:
1.) Depress the latch with your thumb.
2.) Continue to depress the latch, and gently pull apart connector assemblies.
1.
2.
-----------------------------------------------------------------------------------------------------------------------------------When un-mating the connector with a CPA:
1.) Use a small flat tip screwdriver (width 2-2.5mm) to disengage the CPA
2.) Push connectors together to unload the latch system, then depress the latch with your thumb.
3.) Continue to depress the latch, and gently pull apart connector assemblies.
1.
2.
3.
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Application Specification
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APPLICATION SPECIFICATION
G.
Connector Un-mating (continued)
If difficulty is encountered while attempting to un-mate the connector from an SMT header, the
following procedure may be used:
1.) Use a small flat tip screwdriver (width 2-2.5mm) to disengage the CPA
2.) Push connectors together to unload the latch system, then insert a small flat tip screwdriver
(width 2-2.5mm) between the latch and the latch cover.
3.) While pressing down on the latch with the screwdriver (width 2-2.5mm), gently pull on the wire
bundle and the screwdriver (width 2-2.5mm) to remove the connector
2.
3.
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ECR/ECN INFORMATION: TITLE:
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Molex MINI 50 0.50mm Connector System
Application Specification
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AS-34791-020
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H.
Opening the ISL
Use a small flat tip screwdriver (width 2-2.5mm) to gently pry on the ISL latch features one side at
a time. Once each ISL latch is released, the ISL will open.
Pry gently with
screwdriver here
(both sides)
Insert
screwdriver
here
Once latches
release, the
hinge will open
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
I.
Terminal Servicing
Use service tool #63813-XXXX with marking facing up. Position it on the end of the latch with 45°
angle. Then rotate the tool until horizontal direction WITHOUT pushing on the latch
With a small thumbtack gently pry up on the terminal lock finger. Once the lock finger is released,
pull on the terminal to remove it from the housing
THE CONNECTOR HOUSING MAY BE DAMAGED WITH IMPROPER SERVICING. INSPECT
THE TERMINAL, HOUSING, AND LOCK FINGER FOR DAMAGE AND REPLACE THE
CONNECTOR IF DAMAGE IS EVIDENT. THE CONNECTOR HOUSING CAN BE SERVICE UP
TO TWO TIMES, THEN IT MUST BE REPLACED.
REVISION:
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Molex MINI 50 0.50mm Connector System
Application Specification
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APPLICATION SPECIFICATION
J.
Electrical Probing / Continuity Checking
The preferred method of probing is to use the dedicated probe hole opening to check for electrical
continuity. Use a 0.66mm (Lone Star part number LS040-MR-719), pin or smaller equivalent to
prevent damaging the terminal.
3.085mm max pogo pin
insertion from front face
SINGLE ROW PROBE HOLE LOCATIONS
4 ckt
8 ckt
DUAL ROW PROBE HOLE LOCATIONS
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Molex MINI 50 0.50mm Connector System
Application Specification
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AS-34791-020
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APPLICATION SPECIFICATION
K.
Post Solder Reflow Measurements
Header warpage during reflow soldering is expected. If the below dimension becomes less than
7.90mm, confirm processing temperatures are in accordance with SMES-152. The product is
designed for a peak temp of 260°C is allowed.
7.90mm MIN
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Application Specification
DATE:
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5. BEST PRACTICES / TROUBLESHOOTING
A. Connector “As Shipped”
Connector ISL shown in “as shipped” condition (open). The ISL must remain in the open position
REVISION:
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Application Specification
DATE:
DOCUMENT NUMBER:
AS-34791-020
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I.
Terminal servicing
I-1 Recommended service tool :
45° orientation
Marking on
top
Use the service tool #63813-XXXX with marking on top. Position it on the end of the latch with
45° angle. Then rotate the tool until horizontal direction WITHOUT pushing on the latch.
Rotate tool
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EC No:
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Application Specification
DATE:
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AS-34791-020
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Gently pull on the terminal
Gently pull on the wire to release the terminal
Connector housing can be serviced up to two times, then it must be replaced.
Don’t push the tool under the latch.
It will damage the terminal and the
connector.
Never insert the tool in the terminal cavity.
It will damage the terminal and the
connector.
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Application Specification
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AS-34791-020
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6. BEST PRACTICES / TROUBLESHOOTING
Steps can be taken during harness assembly that can ensure the successful product usage by the
customer. Terminal crimping that is in accordance with the CTX50 terminal application specification, AS560023-001, has been found to prevent assembly issues such as bent header pins, pushed-out header
pins, ISL bowing, and terminal stubbing. Examples of good and bad terminals and issues attributed to bad
terminals are shown in the following pages
A. Observed issues attributed to improperly crimped and/or bent female terminals:
A1. Pushed-Out Header Pin:
A2. ISL Bow (due to improperly crimped and/or bent terminals):
BAD Connector causing pushed-out pins,
with improperly crimped and/or bent terminals:
REVISION:
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GOOD connector with in-spec terminals:
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EC No:
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Molex MINI 50 0.50mm Connector System
Application Specification
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AS-34791-020
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GOOD: Terminals correctly crimped and
positioned – No ISL Bow
BAD: Improperly positioned terminals
Terminal
Damage from
header pin
If the front edge of the terminal box can
be seen through the connector cavity
front window as shown in the picture
below, terminal crimp dimensions
shown on page 28 should be confirmed
to meet AS-34791-020.
A3. Excessive Wire Brush:
Excessive Wire
Brush
BAD - ISL Bowing caused by excessive wire brush:
REVISION:
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ISL Bowing
GOOD - Connector with in-spec terminals:
(8.2mm) MAX
Finished harness
assembly should
not exceed 8.2mm
Max
Excessive Wire Brush can lead to ISL Bowing by interfering with ISL when ISL is closed. ISL bowing can
cause bent or pushed-out header pins.
A4. Excessive Crimp Bulge:
REVISION:
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Application Specification
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GOOD- Molex crimped
terminal – clearance
w/cavity
BAD – Non-conforming
crimped terminals
Non-conforming crimped
terminal interferes w/cavity (too
wide)
GOOD – In-spec
Crimp Bulge
BAD – Excessive
Crimp Bulge
Excessive crimp bulge can lead to mis-aligned, improperly positioned terminals within the connector cavity,
and can contribute to ISL bowing and bent or pushed-out header pins.
A5. Test Harness Cautions:
REVISION:
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Application Specification
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Repetitive use of Mini50 connectors in test harnesses require monitoring of the female connector for
damage to the lead-ins on the mating face of the connector. Refer to the picture below for examples of the
type of damage that can occur, in which the lead-in is bent out of the way or worn out due to repetitive
mating. The absence of a lead-in can cause pin stubbing against the female terminal, bent header pins,
pushed-out header pins, or connector stubbing. Test connectors should be inspected and replaced
frequently.
I
B. Best Practice: DIMENSIONAL VERIFICATION – Reference AS-560023-001 for complete list of
requirements.
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Application Specification
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APPLICATION SPECIFICATION
The following dimensions must be meet as stated in AS-560023-001, and are important to
successful performance of the CTX50 terminal/Mini50 connection system.
REVISION:
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•
Strip length:
•
Conductor crimping height and Width:
•
Wire position:
•
Bell Mouth:
•
Insulation crimping height and Width:
•
Bend Up or Down; Twisting or Rolling:
•
Bulge:
•
Tooling must be in good condition
ECR/ECN INFORMATION: TITLE:
EC No:
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Application Specification
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