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