QPL Networks
Vishay Foil Resistors
Bulk Metal® Foil Technology
1445Q-14 Pin and 1446Q-16 Pin DIP Packages
FEATURES
• Hermetically Sealed for maximum environmental
protection - 100% leak protection
Product may not
be to scale
Gross Leak: No bubbles
Fine Leak: < 5 x 10–7 cc/sec
(MIL-STD-220, Method 112, Test C, Procedure 111A)
• Tested per MIL-PRF-83401
• Ceramic Package: 94% Alumina (Al2O3)
• Lid: Gold plated Kovar
Vishay Models 1445Q and 1446Q networks are qualified to
MIL-PRF-83401, Characteristic C, Schematic A. Actual
performance exceeds all the requirements of MIL-PRF-83401
characteristics "C."
• Solder: Tin/Gold
• Leads: Alloy 42 (Iron Nickel) with 100µ Inches gold plating
(MIL-STD-1276, Type G-21-A)
Model 1445Q contains 7 resistors and 1446Q contains 8 resistors.
Qualified resistance range is 100 ohms through 10Kohms. Other
values are available non-QPL. Power rating is 0.1 Watt.
• Gold ball wire bonding
• Foil Chips V15X5
FIGURE 1 - MODEL 1445Q DIMENSIONS
0.740 ±0.045
(18.80 ±1.14)
0.008 –0.016
(0.20 –0.41)
ADDITIONAL TESTING TO MIL SPEC
Group A testing to MIL-PRF-83401 imposes the following:
0.270 +0.035/–0.030
(6.86 +0.89/–0.76)
0.300 ±0.010
(7.62 ±0.25)
1. Thermal shock 100%
5X from – 65 to + 125C.
NO. 1 LEAD
(VIEWED FROM TOP)
2. Power conditioning 100%
0.040 - 0.070
(1.01 - 1.78)
TYPICAL
2. 1 100 hours at 25C, full power.
2. 2 ∆R and ∆ ratio calculation.
0.200
(5.08)
MAXIMUM
3. Visual and Mechanical after the above tests (sample plan)
3. 1 Conformity to physical size.
3. 2 Workmanship
0.135 +0.015/–0.010
(3.43 +0.38/–0.25)
0.015 –0.022
(0.38 –0.56)
0.100
(2.54)
TYP.
3. 3 Damage due to the above tests.
4. 10% PDA or one piece whichever is greater.
5. Solderability (sample plan).
FIGURE 2 - MODEL 1446Q DIMENSIONS
+ 0.046
0.830
- 0.070
+ 1.17
(21.08
)
0.008 –0.016
(0.20 –0.41)
- 1.78
+ 0.035
- 0.030
0.270
(6.86
0.300 ±0.010
(7.62 ±0 .25)
+ 0.89
)
- 0.76
Group B sample testing to MIL-PRF-83401 imposes the following:
1. Temperature Coefficient of Resistance (sample plan).
2. Resistance to solvents (sample plan).
(VIEWED FROM TOP)
NO. 1 LEAD
0.040 –0.070
TYPICAL
(1.01 –1.78)
0.200
(5.08)
MAXIMUM
0.135 +0.015/ –0.010
(3.43 +0.38/–0.25)
0.100
(2.54)
0.015 –0.022
TYPICAL
(0.38 –0.56)
SALES
• ISRAEL: foilsales.israel@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
For technical questions in the Americas, contact foilsupport1@vishay.com
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
www.vishay.com
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Document Number: 63031
Revision 08-Mar-05