THIN FILM CHIP RESISTORS
68 Series 0.020”x0.020”
Satcon Electronics 68 series .020” x .020” Thin-film Chip Resistors are available in both top-contact
and back-contact versions in a wide range of resistances and tolerances. Values are available from
1 ohm to 500 Kohms. Both passivated nichrome and tantalum-nitride resistor versions are available.
Nichrome provides excellent stability and temperature coefficient in hermetic applications while
tantalum-nitride provides superior moisture-resistance for non-hermetic applications.
Electrical Specifications
Parameter
Limit
Test conditions
Power Rating
Life
Noise
High Temp Exposure
TCR (68AL, 68BCN)
TCR (68ALT, 68BCR)
Operating voltage
Moisture resistance
Thermal shock
100 mW
+/-0.2% max
-35 dB typ
+/-0.2% max
+/-50 ppm/C
-50 to -120 ppm/C
100 VDC max
+/-0.5% max
+/-0.5% max
(derated at 70 deg. to 0 mW @ 150 deg.)
1000 hours @ 125 degrees C
MIL-STD-202 method 308
100 hours at 150 degrees C
-55 to 125 degrees C
-55 to 125 degrees C
MIL-STD-202 method 106
MIL-STD-202 method 107
TypicalConfigurations
Values below 20 oh ms
Values from 20 to 200 ohms
Values above 200 ohms
Mechanical Specifications
Substrate
Silicon with 1 micron thermal oxide
Bond pad metalization
Size
Thickness
Gold, 100 microinches
0.021 x .021 +/-.002 (0.53 x 0.53 mm +/- .05mm)
0.013 +/-.003 (0.33 +/-0.07 mm)
Bond pad dimensions
Protective overcoat (passivation)
Back side
0.004 x .004 minimum (0.1 x 0.1 mm)
0.6 microns SiO2 (68AL & 68BCN versions only)
Lapped silicon (68AL, 68ALT), Gold (68BCN, 68BCR)
SatCon Electronics Inc.
Tel: 508-485-6350 Fax : 508-485-5168
165 Cedar Hill Street, Marlborough, Ma 01752
www.satconelectronics.com
SPECTRUM [ SPECTRUM MICROWAVE, INC. ]
