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CAD K DOC
T*e MK Precision Power Film Radial-Lead Resistors
Comparison of T*e MK and "RN" Ratings and Dimensions
Resistor
T*e
Power
Rating
Maximum
Resistance
Mounting
Hole
Spacing
MK120 0.50 W 40 Megohms
or MK620
MK132, MK132V, 0.75 W 100 Megohms
MK632, or MK632V
Even the *allest T*e MK
resistor can replace all of these
RN t*e resistors
RN50 0.05 W 1 Megohm
RN55 0.10 W 5 Megohms
RN60 0.125 W 10 Megohms
RN65 0.25 W 20 Megohms
RN70 0.50 W 40 Megohms
RN50
RN55
RN65
RN70
.150
(3.81)
.200
(5.08)
.400
(10.15)
.500
(12.70)
.625
(15.90)
.875
(22.20)
1.000
(25.40)
All outline drawings full size - dimensions in inches and (millimeters).
RN60
One standard resistor confi guration can simplify board
layouts.
With the exceptionally wide range of resistance values
that are available in each model of T*e MK Precision Film
Resistors, circuits can now be
designed for maximum p ackaging densities
without the need for
leaving extra space where
resistor value changes can
require larger resistors or non-
uniform lead spacings.
Standardization of resistor size can speed
*embly procedures and reduce procurement costs.
The standardization of resistor size can pay additional
dividends by simplifying *embly procedures. The radial
leads do not require additional bending prior to insertion, and
the standard lead spacing can reduce the time required for
*embly.
The combination of higher power ratings and *aller size
can also lower procurement costs. By reducing the wide
va ri ety of sizes and t*es of axial-lead resistors to a single,
standardized resistor t*e, unit prices can be lowered and
inventory problems simplifi ed. For specifi c price and delivery
information, contact our Sales Offi ce.
The largest T*e MK - rated at .75 watt - requires less board
space than even the .05 watt RN50.
The *allest T*e MK - rated at .50 watt - provides power
dis si pa tion equal to the RN70 resistor. The RN70 resistor requires a
mounting hole spacing of 1 inch and a side-to-side spacing of .25
inch, resulting in a total mounting area of .25 square inch - 10 times
the area required for a .50 Watt T*e MK resistor!
Non-Inductive with Expanded Resistance Range — 1 ohm to 100 Megohms
Here are the precision radial lead resistors that provide
high density packaging in circuit board applications. Available
in three miniature rectangular package confi gurations with
standard lead spacings, T*e MK Precision Power Ra di al-
Lead Film Resistors now cover the entire resistance range
from 1 ohm to 100 Megohms.
Constructed with Caddock's Micronox® resistance fi lms
fi red onto a solid ceramic substrate, T*e MK Precision Film
Re sis tors combine all of these outstanding advantages:
• ±1% Resistance Tolerance is Standard - tolerances to
±0.1% are available on special order.
• Operating Temperature - from -55°C to +175°C.
• Full Power Rating at +125°C.
• Temperature Coeffi cient is ≤ 50 ppm/°C from
5 ohms to 5 Megohms and ≤ 80 ppm/°C up to
100 Megohms - referenced to +25°C with the ΔR taken
at -15°C and +105°C.
• Extended Life Stability is T*ically Better Than 0.1%
per 1,000 Hours.
• Caddock's Non-Inductive Performance - provides faster
settling times and minimum distortion in all t*es of high
frequency circuits.
This combination of performance advantages in a *all,
standardized case can simplify many engineering and
pro duc tion problems:
One size of T*e MK resistor can replace many sizes of
axial-lead resistors.
This table of "RN" style axial-lead resistors shows the
many sizes and power ratings that can be replaced with one
of the three models of T*e MK Precision Film Resistors,
within the maximum allowable voltage ratings.
CADKDOC
Temperature Coefficient:
Temperature Coefficient referenced to +25°C, ΔR taken at -15°C and +105°C.
Insulation Resistance: 10,000 Megohms, minimum.
Resistance Range
Temp. Coef.200 ppm/°C50 ppm/°CStandard : 5 Ω and aboveLow : 1 Ω to 4.99 Ω
Resistance Tolerance: ±1% (tolerances to ±0.1% available on values of 30 ohms or
higher).
Overload/Overvoltage: 5 times rated
power with applied voltage not to
exceed 1.5 times maximum continuous operating voltage for 5 seconds, ΔR ±(0.15 percent + 0.01 ohm) max.
Operating Temperature: -55°C to
+175°C.
Load Life: 1,000 hours at +125°C at rated
power, ΔR ±(0.4 percent +0.01 ohm)
max.
Thermal Shock: Mil-Std-202, Method 107,
Cond. B, ΔR ±(0.2 percent +0.01 ohm) max.
Moisture Resistance: Mil-Std-202, Method 106, ΔR ±(0.5 percent + 0.01 ohm)
max.
T*e MK Precision Film Resistors - Low and Standard Resistance Ranges
ALL DIMENSIONS IN INCH* AND (MILLIMETERS)
Resistance Tolerance: ±1% (consult factory for tighter tolerances).
Overload/Overvoltage: 1.5 times max. voltage for 5 seconds, ΔR 0.5% max.
Operating Temperature: -55°C to +175°C.
Temperature Coefficient: See Table for TC value. TC referenced to +25°C, ΔR taken at -15°C and +105°C.
Insulation Resistance: 10,000 Megohms, minimum.
Load Life: 1,000 hours at +125°C at rated power, ΔR 0.5% max.
Thermal Shock: Mil-Std-202, Method 107, Cond. B, ΔR 0.5% max.
Moisture Resistance: Mil-Std-202, Method 106, ΔR 0.5% max.
T*e MK Precision Film Resistors - Extended Resistance Range
Measurement Note: Resistance measurement on low resistance values shall be made at a point within 0.2 inch (5.08 mm) of the body.
Dimensions
EncapsulationLeadwireRef. Case "A" Dwg.Transfer MoldedTinned CopperRef. Case "B" Dwg.ModelNo.Watt-ageMax.VoltageOper.Temp.Max.Dielect.StrengthMK1200.50200175°C3001 Ω5 Ω2 MegMK1320.75400175°*001 Ω5 Ω5 MegResistanceStandardMin.StandardMax.Low Min.Transfer MoldedTinned CopperRef. Case "C" Dwg.MK132V0.75400175°*001 Ω5 Ω5 MegTransfer MoldedTinned CopperWith StandoffCommentsModelNo.Watt-ageMax.VoltageOper.Temp.Max.Dielect.StrengthDimensionsTCppm/°CMK6200.50200175°C300802.01 Meg40 MegRef. Case "A" Dwg.MK6320.75400175°*00805.01 Meg100 MegRef. Case "B" Dwg.ResistanceMin.Max.EncapsulationLeadwireTransfer MoldedTinned CopperTransfer MoldedTinned CopperTransfer MoldedTinned CopperMK632V0.75400175°*00805.01 Meg100 MegRef. Case "C" Dwg.With StandoffComments
Case "B"
Ordering Information:
MK132 - 500K - 1%
Model Number:Resistor Value:ToleranceRATED LOAD, %
A*ENT TEMPERATURE, °C15125175225
Derating Curve:
Model MK132 and MK632
1.50+3.18)-0.00)+.125-.000(38.10.290±.010(7.37±.26).095 ±.005(2.41 ±.13).290 ±.010(7.37 ±.26).200 ±.015(5.08 ±.38)(CENTERED).025 ±.002(.64 ±.05) DIA.,LEADWIREOFFSET.012 (.31)FROMCENTERLINE100 MEGMK6321%Model MK132V and MK632V.250±1.27)±.050(6.35.290 ±.010(7.37 ±.26).200 ±.015(5.08 ±.38)(CENTERED)100 MEGMK632V1%.090(2.29).030 ±.004(.76 ± .10).095 ±.005(2.41 ±.13).290 ±.010(7.37 ±.26).025 ±.002(.64 ±.05) DIA.,LEADWIREOFFSET.012 (.31)FROMCENTERLINEModel MK120 and MK6201.50+3.18)-0.00)+.125-.000.150 ±.015(3.81 ±.38)(CENTERED)10.0MK1201%.245±.010(6.22±.26)(38.10.095 ±.005(2.41 ±.13).245 ±.010(6.22 ±.26).025 ±.002(.64 ±.05) DIA.,LEADWIREOFFSET.012 (.31)FROMCENTERLINE
Case "A"
Case "C"
T*e MK Precision Power Film Radial-Lead Resistors
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