Macrochip Series
High Voltage/High Resistance
Precision Thick Film Surface Mount
featureS
Ohmites MacroChip resistors bring
precision high voltage capabilities to
Non-inductive design (less
surface mount applications. Designed
than 50 nanohenries)
with thick film on alumina substrate
Low voltage coefficient
applIcatIonS
technology, the resistors can be pro-
Sur face mount
vided in precision tolerances, high volt-
Medical instrumentation
age ratings, and high resistance values.
Pd Ag terminations
Power Supplies
The planar package design is low profile
J-bend terminals for applica-
Avionics
for easy use with instrumentation, medi-
tions involving shock and
cal equipment, voltage regulators, and
Light Magnification Systems
vibration
power supplies.
SerIeS SpecIfIcatIonS
Resistance Power Voltage Standard Temp. Coefficient 85-125C
Series Range (Ohms) @25C Rating 50PPM/C 100PPM/C
MC101 100 to 1,000M 0.75W 2.0KV 100-100M 101M-1,000M
MC102 200 to 5,000M 1.50W 5.0KV 200-250M 251M-5,000M
MC103 250 to 5,000M 2.00W 7.5KV 250-100M 101M-5,000M
MC104 1K to 5,000M 2.50W 10.0KV 500-450M 451M-5,000M
MC202 500 to 5,000M 2.50W 5.0KV 500-200M 201M-5,000M
MC204 1K to 5,000M 3.25W 10.0KV 1K-375M 376M-5,000M
Contact Ohmite for custom configurations.
characterIStIcS perforMance data
Characteristic Test Method Specification
Resistor Thick film on Alumina
MIL-STD-202, Method 103B, 0.25%
Humidity
100 Ohms to 5,000M
Resistance Range
Condition B
Power Rating 0.75W to 3.25W
Dielectric Withstanding MIL-STD-202, Method 301, 0.25%
Voltage Rating 2.0KV to 10.0KV
Voltage 750V
Tolerance 0.5% to 20%
Insulation Resistance MIL-STD-202, Method 302, >10,000M or
Condition A or B greater dry
Operating -55C to +180C
Temperature
MIL-STD-202, Method 107G, 0.20%
Thermal Shock
Condition B, B-1, or F
See chart below
TCR and VCR
Load Life MIL-STD-202, Method 108A, 1.0%
Solder Silver solder is recommended for
Condition D
Macrochip resistors. Leaching of
the silver in the termination will
Resistance to Solvents MIL-STD-202, Method 215G No degrada-
occur if non-silver solder is used.
tion of coating
60/40 tin-lead solders are not
or marking
recommended for use with the
Shock (Specified Pulse) MIL-STD-202, Method 213B, 0.25%
Macrochip product.
Condition I
Vibration, High MIL-STD-202, Method 204D, .020%
Recommended Solder Profile
Frequency Condition D
300
Soldering Preheating: 145C 15,
Power Conditioning MIL-R-49462A, Par 4.8 0.50%
10 sec.
max. 120 sec.
250
Soldering: min. 220C,
60 sec.
200
Preheating
Cooling max. 60 sec.
120 sec.
150
Max. Temp.: 260C 5,
10 sec.
100
50
0
0 50 100 150 200 250
Time (sec.)
24 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
Temperature CMacrochip Series
High Voltage/High Resistance
Precision Thick Film Surface Mount
dIMenSIonS
(in./mm)
Qty./Reel
With Terminal Options:
Series Power A .01 B .01 B max. (J-bend) w/J-bend w/o J-bend
B B' MC101 0.75W 0.25 (6.35) 0.25 (6.35) 0.29 (7.37) 1000 2500
MC102 1.50W 0.25 (6.35) 0.50 (12.70) 0.54 (13.72) 1000 2500
MC103 2.00W 0.25 (6.35) 0.75 (19.05) 0.79 (20.07) 1000 2500
MC104 2.50W 0.25 (6.35) 1.00 (25.40) 1.04 (26.42)
A
MC202 2.50W 0.50 (12.70) 0.50 (12.70)
MC204 3.25W 0.50 (12.70) 1.00 (25.40)
Contact Ohmite for custom configurations.
0.050" (1.27 mm) NAS CC21AA-D22W-OFA
two places J Lead 0.050" centers
Land Pattern
0.14"
(3.6mm) Land pattern dimensions are for
Size M N O L
0.030" 0.005 J-bend
reference only.
(0.76 mm 0.13)
0.055" typ.
MC101 0.280 0.080 0.278 0.120
(1.40mm)
M
MC102 0.530 0.080 0.278 0.370
0.065"
N L
(1.65mm) MC103 0.780 0.080 0.278 0.620
0.035" typ. SMD
MC104 1.030 0.080 0.278 0.870
(0.89mm)
MC202 0.530 0.080 0.556 0.370
O
MC204 1.030 0.080 0.556 0.870
teMp./Voltage coeffIcIentS of reSIStance
Temp. Coeff. of Resistance*
0C-85C 85C-125C Voltage Coeff. of Resistance**
Resistor Series 25 PPM/C 50 PPM/C 100 PPM/C < 2PPM/Volt < 5PPM/Volt
MC101 100 to 800M 100 to 100M 101M to 1,000M 100 to 270M 271M to 1,000M
MC102 200 to 1,500M 200 to 250M 251M to 5,000M 200 to 640M 641M to 5,000M
MC103 250 to 800M 250 to 440M 441M to 5,000M 250 to 1,100M 1,101M to 5,000M
MC104 500 to 2,500M 500 to 450M 451M to 5,000M 500 to 1,100M 1,101M to 5,000M
MC202 500 to 1,500M 500 to 200M 201M to 5,000M 500 to 520M 521M to 5,000M
MC204 1K to 1,750M 1K to 375M 376M to 5,000M 1K to 950M 951M to 5,000M
*TCR of 25ppm for temperature range of 0C-85C. TCR of 50ppm and 100ppm for -55C to 125C.
Consult factory for TCR values operating higher than 125C
**VCs of <2PPM/Volt are available. Contact Ohmite with your requirement.
orderIng InforMatIon
Coating E = RoHS Tape and Reel
Standard Part Numbers
2 = Blue silicone compliant optional
Series: MC10282 Tolerance: 5% Watts: 1W
MC102821006JER
Ohms Part Number Ohms Part Number Ohms Part Number
Tolerance
Macro Chip Style Terminal Ohms 1K MC102821001JE 50K MC102825002JE 1.25M MC102821254JE
D= 0.5%
Series 101 5 = J-bend First 3 digits are
2.5K MC102822501JE 75K MC102827502JE 1.5M MC102821504JE
F= 1%
102 6 = SMD significant; 4th digit is
5K MC102825001JE 100K MC102821003JE 1.75M MC102821754JE
G= 2%
104 8 = No term. multiplier (# of zeroes
7.5K MC102827501JE 125K MC102821253JE 2M MC102822004JE
J= 5%
202 to follow). Examples:
10K MC102821002JE 150K MC102821503JE 2.5M MC102822504JE
K= 10%
204 10R2 = 10.2 ohms
M= 15%
1000 = 100 ohms 12.5K MC102821252JE 200K MC102822003JE 5M MC102825004JE
P= 20%
1503 = 150,000 ohms
15K MC102821502JE 250K MC102822503JE 10M MC102821005JE
17.5K MC102821752JE 500K MC102825003JE 25M MC102822505JE
20K MC102822002JE 750K MC102827503JE 50M MC102825005JE
25K MC102822502JE 1M MC102821004JE
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 25