87014

REVISIONS
LTR
DESCRIPTION
Add new resistance tolerance, dimension
modification, and detail A. Add new vendors.
Change voltage for 25 Vdc to 50 Vdc.
Add new requirements for resistance
characteristic, power ratings, solderability, and
dimensions.
Deleted ozone depleting substance. Editorial
changes throughout.
Changes in accordance with NOR 5905-R001-94.
Update and validation of drawing. Change
reference specification to MIL-PRF-914. Editorial
changes throughout.
Changes in accordance with NOR 5905-R002-02.
Changes in accordance with NOR 5905-R003-03.
Remove vendor from suggest sources. Editorial
changes throughout.
Add pure tin, manufacturer’s eligibility, and pulse
application paragraphs. Editorial changes
throughout.
Remove vendor. Editorial changes throughout.
A
B
C
D
E
F
G
H
J
K
DATE
APPROVED
23 MAY 88
D. Moore
26 MAY 89
D. Moore
4 OCT 93
5 NOV 93
D. Moore
D. Moore
24 AUG 00
K. Cottongim
6 JUN 02
17 DEC 02
6 OCT 03
K. Cottongim
K. Cottongim
K. Cottongim
3 JUL 12
M. Radecki
21 March 13
M. Radecki
CURRENT DESIGN ACTIVITY CAGE CODE 037Z3
HAS CHANGED NAMES TO:
DLA LAND AND MARITIME
COLUMBUS, OHIO 43218-3990
Prepared in accordance with ASME Y14.100
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PMIC N/A
PREPARED BY
Allen R. Knox
DESIGN ACTIVITY:
DEFENSE ELECTRONIC SUPPLY CENTER
DAYTON, OHIO 45444-5000
Original date of drawing:
CHECKED BY
David W. Withrow
TITLE
RESISTOR NETWORK, FIXED, FILM, SURFACE
MOUNT, 16 PIN, LEADLESS CHIP CARRIER
20 August 1987
APPROVED BY
David E. Moore
SIZE
A
REV
AMSC N/A
CODE IDENT. NO.
14933
DWG NO.
K
PAGE
87014
1
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5905-2013-E33
1. SCOPE
1.1 Scope. This drawing describes the requirements for a 16 pin, leadless chip carrier, resistor network. These
networks are available in hermetically sealed and nonhermetically sealed packages.
1.2 Part or Identifying Number (PIN). The complete PIN is as follows:
87014
|
|
Drawing number
-
*
|
|
Schematic
(1.2.1)
****
|
|
Resistance
(1.2.1.1)
*
|
|
Tolerance
(1.2.1.2)
*
|
|
Characteristic
(1.2.1.3)
1.2.1 Schematic. The schematic of the resistor network is identified by a single letter in accordance with figure 1.
FIGURE 1. Schematics.
1.2.1.1 Resistance value designation. The resistance value designations are in accordance with MIL-PRF-914. The
resistance value designations for the “B” schematic are specified in table I.
TABLE I. Resistance value designation.
Resistance
designator
A001
A002
A003
A004
A005
A006
A007
R1
(ohms)
82
120
130
160
180
180
220
R2
(ohms)
130
200
210
260
240
390
270
Resistance
designator
A008
A009
A010
A011
A012
A013
R1
(ohms)
220
330
330
330
1,500
3,000
R2
(ohms)
330
390
470
680
3,300
6,200
DEFENSE ELECTRONIC SUPPLY CENTER
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A
14933
87014
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1.2.1.2 Resistance tolerance. The resistance tolerance is identified as a single letter in accordance with table II.
TABLE II. Resistance tolerance.
Symbol
B
D
F
G
J
Resistance tolerance
(in percent) ±
0.1
0.5
1.0
2.0
5.0
1.2.1.3 Characteristic. Resistor networks are available in characteristics C, H, K, M, R, or V in accordance with
MIL-PRF-914 (see 3.2). Matched ratio specified in MIL-PRF-914 for characteristics C and V are not applicable to
schematic B.
2. APPLICABLE DOCUMENTS
2.1 Government documents.
2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of
this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in
the solicitation or contract.
DEPARTMENT OF DEFENSE SPECIFICATION
MIL-PRF-914
-
Resistor Networks, Fixed, Film, Surface Mount, Nonestablished Reliability, and Established
Reliability, General Specification For.
DEPARTMENT OF DEFENSE STANDARD
MIL-STD-202
MIL-STD-790
-
MIL-STD-1285 *
Test Methods for Electronic and Electrical Component Parts.
Established Reliability and High Reliability Qualified Products List (QPL) Systems for Electrical,
Electronic, and Fiber Optic Parts Specifications.
Marking of Electrical and Electronic Parts.
(Copies of these documents are available online at https://assist.dla.mil/quicksearch/ or from the DLA Document
Service Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)
2.2 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of
this document and the references cited herein (except for related, specification sheets), the text of this document takes
precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption
has been obtained.
3. REQUIREMENTS
3.1 Item requirements. The individual item requirements shall be in accordance with MIL-PRF-914 and as specified
herein.
3.2 Interface and physical dimensions. The resistor shall meet the interface and physical dimensions as specified in
MIL-PRF-914 and herein (see figure 2). Cavity constructions using wire bonding techniques shall be supplied only as a
characteristic C hermetically sealed resistor network.
DEFENSE ELECTRONIC SUPPLY CENTER
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CODE IDENT NO.
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DAYTON, OHIO
A
14933
87014
REV K
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3
Inches
0.003
0.005
0.010
0.015
mm
0.08
0.13
0.25
0.38
Inches
0.016
0.020
0.025
0.040
mm
0.41
0.51
0.64
1.02
Inches
0.050
0.085
0.250
0.300
mm
1.27
2.16
6.35
7.62
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Unless otherwise specified, tolerances are ±.008 (0.20 mm).
4. Adjacent corner pads may be rounded or diagonally cut to meet the .015 (0.38 mm) minimum requirement.
FIGURE 2. Leadless chip carrier.
3.2.1 Termination. Termination finish shall be tin-lead or hot solder dip as specified in MIL-PRF-914.
3.2.2 Pure tin. The use of pure tin, as an underplate or final finish is prohibited both internally and externally. Tin
content of resistor components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3
percent lead, by mass (see 6.5).
3.3 Electrical characteristics.
3.3.1 Resistance range. The resistance range shall be 10 ohms to 100 kilohms.
DEFENSE ELECTRONIC SUPPLY CENTER
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3.3.2 Resistor power rating. The resistor power rating for individual resistors shall be in accordance with table III.
3.3.3 Package power rating. The package power rating shall be in accordance with table III. For temperatures in
o
excess of 70 C, resistors shall be derated in accordance with MIL-PRF-914.
TABLE III. Power ratings.
Schematic
A
B
Characteristic
K and M
Element
Network
(watts)
(watts)
0.05
0.75
0.05
0.70
Characteristics
C, H, R, and V
Element
Network
(watts)
(watts)
0.025
0.375
0.025
0.35
3.3.4 Power conditioning. Power conditioning shall be in accordance with MIL-PRF-914 at 1.5 times the rated power
specified for individual resistors (see 3.3.2).
3.3.5 Operating voltage. The maximum operating voltage shall be 50 Vdc.
o
o
3.3.6 Operating temperature. The operating temperature shall be -55 C to +125 C.
3.3.7 Resistance temperature characteristic. The resistance temperature characteristic shall be in accordance with
MIL-PRF-914.
o
3.3.8 TC tracking. The TC tracking shall be ±10 ppm/ C.
3.3.9 Solderability. When resistors are tested as specified in 4.6, there shall be no evidence of electrical or mechanical
damage.
3.3.9.1 Failure criteria for leadless packages. The criteria for acceptable solderability during evaluation of the
terminations are:
a. The total surface area of the dipped part of the termination is at least 95 percent covered by a continuous new
solder coating.
b. That pinholes, voids, porosity, nonwetting, or dewetting are not concentrated in one area and do not exceed 5
percent of the total metallized termination area.
c.
That there shall be no solder bridging between any termination area and any other termination area not
connected to it by design. In the event that the solder dipping causes bridging, the test shall not be considered a
failure provided that a local application of heat (i.e., gas, soldering iron, or redipping) results in solder pullback and
no wetting of the dielectric area are indicated by microscope examination at a magnification of between 10x and
20x.
That area of the surface to be tested as specified in 4.6c shall include the total metallized area of both the castellations
and the terminal pads. In case of a dispute, the percentage of coverage with pinholes or voids shall be determined by
actual measurement of these areas, as compared to the total area.
3.4 Environmental characteristic. The environmental characteristics shall be in accordance with MIL-PRF-914
characteristic C, H, K, M, R or V.
DEFENSE ELECTRONIC SUPPLY CENTER
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3.5 Marking. Marking shall be in accordance with MIL-STD-1285, except the PIN shall be as specified in 1.2, with the
manufacturer's CAGE number or trade mark and date code.
3.6 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable
materials should be used to the maximum extent possible provided that the material meets or exceeds the operational
and maintenance requirements, and promotes economically advantageous life cycle costs.
3.7 Manufacturer eligibility. To be eligible for listing as a approved source of supply, a manufacturer shall be listed on
the MIL-PRF-914 Qualified Products List for at least one part, or perform the group A and group B inspections specified
herein on a sample agreed upon by the manufacturer and DLA Land and Maritime-VAT.
3.7.1 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be listed
as an approved source of supply.
3.8 Workmanship. Resistors shall be uniform in quality and free from any defects that will affect life, serviceability, or
appearance.
4. VERIFICATION
4.1 Product assurance program. The product assurance program specified in MIL-PRF-914 and maintained in
accordance with MIL-STD-790 is not applicable to this document.
4.2 Qualification inspection. Qualification inspection is not applicable to this document.
4.2.1 Failure rate qualification. The failure rate qualification specified in MIL-PRF-914 is not applicable to this
document.
4.3 Conformance inspections.
4.3.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A and group B
inspections of MIL-PRF-914.
4.3.2 Certification. The acquiring activity, at its discretion, may accept a certificate of compliance with group B
requirements in lieu of performing group B tests (see 6.2d).
4.4 Inspection of packaging. Inspection of packaging shall be in accordance with MIL-PRF-914.
4.5 “B” schematic tests. For the tests on “B” schematic, the dc resistance measurements, resistance temperature
characteristics measurement, and short time overload power application shall be made between each terminal and the
application common terminal without compensation for the shunt circuits. The pin to pin dc resistance measurements
shall be used directly to determine the acceptability to section 3 requirements.
DEFENSE ELECTRONIC SUPPLY CENTER
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87014
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4.6 Solderability. Solderability shall be in accordance with method 208 of MIL-STD-202. The following details shall
apply:
a. Application of flux. Flux type shall be in accordance with MIL-PRF-914. Terminations shall be immersed in the
flux, which is at room ambient temperature, to the minimum depth necessary to cover the surface to be tested.
The terminations shall be completely immersed by individually dipping each edge with the Y1 axis 30 degrees to
45 degrees from vertical. The terminations to be tested shall be immersed in the flux for a period of 5 seconds to
10 seconds.
b. Solder dip. The dross and burned flux shall be skimmed from the surface of the molten solder. (NOTE: May not
require separate operation in wave or flow pot). The molten solder shall be maintained at a uniform temperature
of 245°C ±5°C. The surface of the molten solder shall be skimmed again prior to immersing the terminations in
the solder. The part shall be attached to a dipping device and the flux covered terminations immersed one side at
a time, in molten solder to the depth, and in the same manner specified in 4.6a. The immersed and emersion
rates shall be 1.000 ±0.250 inch per second and dwell time in the solder bath shall be 5.0 seconds ±0.5 second.
After the dipping process, the part shall be allowed to cool in air. Residue flux shall be removed from the
terminations by rinsing in a suitable solvent. If necessary, a soft cloth or cotton swab moistened with clean 91
percent isopropyl alcohol shall be used to remove all remaining flux.
c.
Examinations of terminations. After each dip coated termination has been thoroughly cleaned of flux, the
castellation and pad shall be examined using a magnification between 10x and 20x.
4.7 Visual and mechanical examination. Resistors shall be examined to verify that the materials, design, construction,
physical dimensions, marking, and workmanship are in accordance with the applicable requirements of MIL-PRF-914.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see
6.2). When actual packaging of materiel is to be performed by DoD personnel or in-house contractor personnel, these
personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging
requirements are maintained by the Inventory Control Point's packaging activity within the Military Department or Defense
Agency, or within the military service’s system commands. Packaging data retrieval is available from the managing
Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the
responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. Resistor networks are used in surface mounting applications where space is a major concern.
6.2 Ordering data. The contract or purchase order should specify the following:
a. Complete PIN (see 1.2).
b. Requirements for delivery: One copy of the conformance inspection data or certification of compliance that parts
have passed conformance inspection with each shipment of parts by the manufacturer.
c.
Requirements for packaging and packing. (i.e. ESD sensitive packaging).
d. Whether the manufacturer performs the group B tests or provides certification of compliance with group B
requirements (see 4.3.2).
DEFENSE ELECTRONIC SUPPLY CENTER
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6.3 Electrostatic charge. Under several combinations of conditions, these resistors can be electrically damaged, by
electrostatic charges, and drift from specified value. Users should consider this phenomena when ordering or shipping
resistors. Direct shipment to the Government is controlled by MIL-DTL-39032 which specifies a preventive packaging
procedure.
6.4 PIN supersession. PIN's in the original 87014 and revision A have been superseded by a new PIN in revision B
that includes a characteristic code to differentiate between hermetically and nonhermetically sealed resistor networks.
The following table illustrates a generic PIN substitution:
TABLE II. PIN supersession.
87014
and 87014A
87014-******
87014B
Nonhermetic
87014-******H
87014-******V
87014B
Hermetic
87014-******C
6.5 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may exhibit tin whisker
growth problems after manufacture. Tin whiskers may occur anytime from a day to years after manufacture and can
develop under typical operating conditions, on products that use such materials. Conformal coatings applied over top of a
whisker-prone surface will not prevent the formation of tin whiskers. Alloys of 3 percent lead, by mass, have shown to
inhibit the growth of tin whiskers. For additional information on this matter, refer to ASTM-B545 (Standard Specification
for Electrodeposited Coatings of Tin).
6.6 Pulse applications. Designers are CAUTIONED on using the above resistors in high power pulse applications.
Since they have not been qualified nor tested for such applications, damage and premature failure are possible.
6.7 User of record. Coordination of this document for future revisions is coordinated only with the approved source of
supply and the users of record of this document. Requests to be added as a recorded user of this drawing may be
achieved online at [email protected] or in writing to: DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, OH
43218-3990 or by telephone (614) 692-0552 or DSN 850-0552.
*
6.8 Approved source of supply. Approved source of supply is listed herein. Additional sources will be added as they
become available. Assistance in the use of this drawing may be obtained online at [email protected] or contact DLA Land
and Maritime-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-0552 or DSN 850-0552.
DLA Land and Maritime
drawing PIN
87014-*******
Characteristics C; resistance values 10
ohms through 100 kilohms; resistance
tolerances B, D, F, G, and J. Schematics A
and B.
Characteristics H and V; resistance values
10 ohms through 100 kilohms; resistance
tolerances B, D, F, G, and J. Schematics A.
Vendor similar
designation or
type number 1/
Vendor
CAGE
HC-151
HC-152
27851
7***
57027
Vendor’s name and address
Spectrum Microwave
400 Nickerson Road
Marlborough, MA 01752
IRC, Inc.
4222 S. Staples Street
Corpus Christi, TX 78411-2702
1/ Parts must be purchased to the DLA Land and Maritime PIN to assure that all performance requirements and tests
are met.
DEFENSE ELECTRONIC SUPPLY CENTER
SIZE
CODE IDENT NO.
DWG NO.
DAYTON, OHIO
A
14933
87014
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PAGE
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