Transcript Standardisation of Electronic Components

Component Data Base and
Coding Scheme
Corporate QA
ITI Limited, Bangalore
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Topics for Discussion
 Code Allotment
 Component Approval
Procedure
 Component Coding Scheme
 Component Data Base
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Code Allotment
CODE REQUEST FROM R & D
CODE ALLOTMENT - STUDY
OF COMPONENT DRAWING
AND TECHNICAL DATA
PREPARATION
OF DRAWING &
SPECIFICATION
INPUT TO
DATABASE
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Component Approval Procedure
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Registration of Component Vendor
Collect and scrutinise technical literature
Electrical,Mechanical and Environmental tests
Vendor Assessment
Clearance for Educational order
Inclusion in CDB
Qualification Approval after satisfactory
performance
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Component Approval Procedure
INTERACTION WITH
VENDORS &
PROCUREMENT OF
SAMPLES
EVALUATION OF
SAMPLES AS PER
SPECIFICATION
CORRECTIVE ACTION
NO
VENDOR REGISTRATION
AND ASSESSMENT
ARE
RESULTS OK?
YES
R&D
CONCURRENCE
COMPONENT
APPROVAL GROUP
COMPONENT
APPROVAL
COMMITTEE
ACCORD APPROVAL
NONCONFORMANCE
INPUT TO DATABASE
USAGE OF DATABASE
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COMPONENT APPROVAL
PROCEDURE
PROCESS STEPS
1.
R & D Project Engineers shall identify the
components for which 15 digit code is
not available in Component Database
(CDB) and need to be used in their
designs and send formal request to
Component Approval Group for allotment
of codes.
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COMPONENT APPROVAL
PROCEDURE
2.
After scrutiny as per guidelines provided
in Coding Scheme, 15 digit code will be
allotted and draft drawing is prepared
and sent to project engineer for
concurrence. A final drawing is prepared
after the Project Engineer’s concurrence
and approval is accorded and included in
CDB.
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COMPONENT APPROVAL
PROCEDURE
3. Sample components are received from
Vendors / Purchase / Production
Planning etc. by Component Approval
Group and these components are sent to
various labs for test & inspection and
the Division concerned for Evaluation
e.g. Test Set, IGI and Production Line to
check assembly suitability etc. After the
tests are completed, the reports are
received by CAG for scrutiny.
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COMPONENT APPROVAL
PROCEDURE
For components where expertise is not
available with Component Approval
Group, test results are sent to R & D for
their analysis and concurrence. In
specific cases R & D conducts tests on
components and provide results along
with their recommendation to
Component Approval Group.
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COMPONENT APPROVAL
PROCEDURE
4.
Vendor assessment is carried out as per
Vendor Development Manual
CL / VDC / 001. Action is taken to put up
appropriate cases to Component
Approval Committee for approval. In the
case of non-conformance, the matter is
taken up with the vendor / agents.
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COMPONENT APPROVAL
PROCEDURE
The Component Approval Committee comprises
Component Approval Group Head as Secretary
One Member from R & D
One Member from QA.
This committee approves the components
from new indigenous source which do not
have approval by LCSO / CACT.
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COMPONENT APPROVAL
PROCEDURE
Alternate results submitted by vendor
from recognized test labs like ETDC,
ERTL, BEL or CQAL and approvals issued
by recognized agencies like LCSO or
CACT are scrutinized and if found
adequate for our requirement, are
considered for approval.
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COMPONENT APPROVAL
PROCEDURE
5.
6.
In case of components for Defence
Production, approval of LCSO only is
considered and CDB updated
accordingly. After satisfying all approval
norms, the source is introduced in
Component Data Base.
Initially Educational status is awarded. On
successful completion of Educational
Orders, Qualification status is awarded
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COMPONENT APPROVAL
PROCEDURE
7. In exigencies, Head of Component
Approval is empowered to approve a
code (Limited approval) on satisfactory
performance in production line /
functional tests in actual circuit /
feedback on earlier satisfactory
acceptance in IGI / approval of similar
type of component in the same family of a
manufacturer’s product range.
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COMPONENT APPROVAL
PROCEDURE
8.
9.
In case of foreign vendors, approval is
granted based on the scrutiny of track
record / document. Department Head is
empowered to approve on a case to case
basis.
In case of collaborated projects, MOU
guidelines are followed.
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Component Approval Tests
Group 0
Parametric &
Functional
Group 1
Sold, Mech,
Climatic tests
Group 3
Life
Elec & Mech
Group 2
Damp Heat
Steady State
Based on JSS 50101
Group 5
Resistance to
solvent,Sold.heat
Group 4
Mould Growth
Group 6
Corrosive
Atmosphere
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Component Coding Scheme
15 digit coding scheme
 Each code identifies a unique component
 Used in ITI Bangalore and ITI Naini
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Component Coding Scheme
D XX
XX XXXXXX
XX
XX
1
4
12 13
14 15
2
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3
5
1st
Digit
2nd –3rd Digit
4th –5th Digit
6th –11th Digit
12th-13th Digit
14th-15th Digit
6
7
8
9 10 11
D – Dooravani Nagar
Component type
Family, Process
Serial number / Value
Package
Classification / Tolerance
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Component Coding Scheme
2nd –3rd Digit Component type
A1
A2
A3
A4
A5
A6
-TRANSISTORS
-DIODE
-INTEGRATED CIRCUIT
-CRYSTALS
-VALVES & TUBES
-MAGNETIC MATERIAL
C1 -CAPACITOR
C2 -RESISTOR
C3 -COIL FORMER
C4 -CONNECTOR
C5 -FUSE/PROTECTOR
C6 -RELAYS
C7 -SWITCHES
C8 -KNOB
C9 -TERMINAL
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Component Coding Scheme
2nd –3rd Digit Component type
D1 -METERS
D2 -LAMPS
D3 -SPEAKERS
D4 -M/W COMPONENTS
D5 -CHOKES
D6 -MTG. ACCESSORIES
D7 -HOLDERS
D8 -MICROPHONES
D9 -MISC. COMPONENTS
SPECIAL PROJECT
ORIENTED
NOT ACTIVE
K1 AND K2– CONNECTORS
AND OTHER COMPONENTS
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Typical temperature characteristics of 2 Class II ceramic capacitors
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Component Data Base (CDB)
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Latest version 241 contains 9017 Codes (15
Digit) as on 16th June 2009 for a variety of
Electronic Components
Introduced in July 1995
Version Updated Monthly and sent to All ITI
Units
Master Data Base is dynamically updated as
and when required every day.
Users: Purchase, R&D and Production
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Component Data Base (CDB)
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DA1 Transistors
DA2 Diodes
DA3 ICs
DA4 Crystals
DC1 Capacitors
DC2 Resistors
DC4 Connectors
DC6,7 Relays & Switches
DD4 Microwave Components
DD9 Misc. Components
All Components
316
451
2384
273
1400
385
1075
391
408
421
8471
Codes
Codes
Codes
Codes
Codes
Codes
Codes
Codes
Codes
Codes
Codes
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Component Data Base (CDB)
The CDB contains the following information
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Unique 15 Digit Code
Description of the Component
Supplier Code, Supplier Name and Address
Supplier’s Approved Part No.
Approval Validity Status
Drawing Position (Revision Status)
Approval Number and Date
Data Base Version No.
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Component Data Base - Status Of Approvals
Code
Significance
Action
QUL
For Purchase Upto Expiry
Qualified
Date. For Enquiry Upto 1
(Non-Defence)
Year After Expiry Date
QDG
Qualified
Defence
General
For Purchase Upto Expiry
Date. For Enquiry Upto 1
Year After Expiry Date
QDF
Foreign
Source For
Defence Use
For Enquiry / Purchase
Without Any Expiry Date
QDC
Qualified
Defence
Custom
For Enquiry / Purchase
Without Any Expiry Date
Educational
For Enquiry / Purchase Of
Educational Quantity, For
Non-Defence
EDN
Remarks
While Ordering
LCSO Approval
shall be Available
Custom Devices.
Manufacturers To
Screen Devices
As Per Mil Spec.
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Component Data Base - Status Of Approvals
Code
Significance
Action
Remarks
QDA
Qualified For
Defence
Application
DCR
For Enquiry / Purchase For
Designer Code
R&D Only. For Production
Request (Not
Purchase ,Refer
Evaluated)
Comp.Stds.
LTA
Limited Type
Approval
Refer Comp./Stds
OBS
Obsolete
Not For Enquiry / Purchase Made Obsolete By
From Effective Date
The Manufacturer
Disqualified
Not For Use, Enquiry /
Purchase From Effective
Date To Be Stopped
DSQ
For Purchase Upto Expiry
Date. Enquiry Upto One
Year After Expiry Date
Limited For Use In
Specific Projects
Non-Conformance
Noticed In ITI
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CDB Output for Sources Of Supply
Component Code
DA1B1000007A2A2
Approval No.
44
Approval Date 30-Jan-03
Component Description : TRANSISTOR,Si,PNP,LOW FREQ,LOW POWER,AMPLIFIER,J51325-N515-2
Drawing Issue 245
S.NoSupp.Code
Vendor
1 S0003
2 P0002
3 M0001
4 A0066
Approval Status
5
6
7
8
9
B0001
T0019
B0001
C0001
C0001
Company Name
Country
Cat
Manufacturer Part No.
ST MICRO ELECTRONICS
PHILIPS COMPONENTS
MOTOROLA SEMICONDUCTOR
ADVANCE SEMICOND UCTORS
SINGAPORE
NETHERLANDS
HONGKONG
ENGLAND
FM
FM
FM
FM
BC177A
BC177A
BC177A
BC177A
BHARAT ELECTRONICS LTD.
TEAMASIA LAKHI
BHARAT ELECTRONICS LTD.
CONTINENTAL DEVICE INDIA LTD.
CONTINENTAL DEVICE INDIA LTD.
BANGALORE
HYDERABAD
BANGALORE
NEW DELHI
NEW DELHI
IM
IM
IM
IM
IM
BC177A
BC177A
BC177A
BC177A
BC177A
OBS JUN2000
QUL MAR2003 A-096
QUL AUG2004 A-095
QDG JUN2003
QDG OCT2005
QUL JAN2004
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Component Procurement Problems
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Single Source
Long Delivery Schedule
High Cost
Obsolescence
Low Quantity – MOQ
No Quote from Supplier
Old Batch Code / Stock , Shelf Life
Approval Validity
TOT / Multiple designs
Critical Parts
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Quality Problems related to
Electronic Components
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VISUAL – No Markings; No Mfr’s Logo, No Batch, Wrong
Value, Wrong Color Code
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DIMENSIONS – Lead dia, Lead length, Overall Dimensions
Resistance to solvents
CORROSION – Poor Plating finish, especially Gold
Poor solderability of leads
Low insulation resistance
Drift in parameters
Functional failures
High loss factor, open circuit in capacitors
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