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© 2010 Caddock Electronics, Inc.

ELECTRONICS, INC.

IL115.0710

Model TK121 and TK621

2.00 MEG

TK621

0.1%

1.50

+3.18)

-0.00)

+.125

-.000

.150 ±.015

(3.81 ±.38)

(CENTERED)

.245

±

.010

(6.22

±

.26)

(38.10

.095 ±.005

(2.41 ±.13)

.245 ±.010

(6.22 ±.26)

.025 ±.002

(.64 ±.05) DIA.,

LEADWIRE

OFFSET

.012 (.31)

FROM

CENTERLINE

Model TK133 and TK633

.290

±

.010

(7.37

±

.26)

1.50

+3.18)

-0.00)

+.125

-.000

(38.10

.095 ±.005

(2.41 ±.13)

.025 ±.002

(.64 ±.05) DIA.,

LEADWIRE

OFFSET

.012 (.31)

FROM

CENTERLINE

.290 ±.010

(7.37 ±.26)

.200 ±.015

(5.08 ±.38)

(CENTERED)

10.0 MEG

TK633

0.1%

Case "B"

Resistance

Min.

Max.

Dimensions

Encapsulation

Leadwire

Max.

Working

Voltage

Model

No.

Wattage

@

+125°C

Temperature

Coefficient

ppm/°C

Dielect.

Strength

Comments

Ref. Case "D" Dwg.

TK

133V

0.3

300

5, 10, or 20

400

1 K

1.5 Meg

With Standoff

Ref. Case "B" Dwg.

TK

133

0.3

300

5, 10, or 20

400

1 K

1.5 Meg

Ref. Case "A" Dwg.

Tinned Copper

TK

121

0.2

200

5, 10, or 20

300

1 K

500 K

Ref. Case "C" Dwg.

TK

139

0.3

300

5, 10, or 20

400

1 K

1.5 Meg

Limited

by

Maximum

Working

Voltage

Ref. Case "D" Dwg.

TK

633V

300

5, 10 or 20

400

1.51 Meg

10 Meg

With Standoff

Ref. Case "A" Dwg.

TK

621

200

5, 10 or 20

300

501 K

2 Meg

Ref. Case "B" Dwg.

TK

633

300

5, 10 or 20

400

1.51 Meg

10 Meg

Ref. Case "C" Dwg.

TK

639

300

5, 10 or 20

400

1.51 Meg

10 Meg

Transfer Molded

Transfer Molded

Transfer Molded

Transfer Molded

Transfer Molded

Transfer Molded

Transfer Molded

Transfer Molded

Tinned Copper

Tinned Copper

Tinned Copper

Tinned Copper

Tinned Copper

Tinned Copper

Tinned Copper

Case "A"

Model TK133V and TK633V

.025 ±.002

(.64 ±.05) DIA.,

LEADWIRE OFFSET

.012 (.31) FROM

CENTERLINE

.250

±

1.27)

±

.050

(6.35

.290

±

.010

(7.37

±

.26)

.200 ±.015

(5.08 ±.38)

(CENTERED)

10.0 MEG

TK633V

0.1%

.090

(2.29)

.030 ±.004

(.76 ± .10)

.095 ±.005

(2.41 ±.13)

.290 ±.010

(7.37 ±.26)

Model TK139 and TK639

.305

±

.010

(7.75

±

.26)

.105 ±.005

(2.67 ±.13)

.305 ±.010

(7.75 ±.26)

.025 ±.002

(.64 ±.05) DIA.,

LEADWIRE

OFFSET

.012 (.31)

FROM

CENTERLINE

10.0 MEG

TK639

0.1%

1.50

+3.18)

-0.00)

+.125

-.000

.150 ±.015

(3.81 ±.38)

(CENTERED)

(38.10

Case "C"

Case "D"

Derating Curve:

AMBIENT TEMPERATURE, °C

100

80

60

40

20

0 25 75 125 175 225

Type TK Low TC Precision Radial-Lead Film Resistors

Page 2 of 2

Ordering Information:

TK633 - 10.0 Meg - 0.1% - 10 ppm/°C

Model Number

Tolerance

Resistor Value

Temperature

Coefficient

Resistance Tolerance: ±0.1% Standard

(tolerances of ±1% and ±0.05% are available)

Temperature Coefficient: Referenced to

25°C, ∆R taken at -55°C to +125°C.

TC identification is made with a color stripe on

the top edge of the part.

5 ppm/°C White Stripe

10 ppm/°C No Stripe

20 ppm/°C Green Stripe

Overload*:

TK100 Series - 6.25 times rated power for

5 seconds at voltage not to exceed 1.5 times

maximum rated working voltage, ∆R less

than 0.05%.

TK600 Series - 1.5 times rated working voltage

for 5 seconds, ∆R less than 0.2%.

Operating Temperature: -55°C to +175°C.

Thermal Shock:

TK100 Series - Mil-Std-202, Method 107,

Cond. B, ∆R less than 0.05%.

TK600 Series - Mil-Std-202, Method 107,

Cond. B, ∆R less than 0.1%.

Low Temperature Operation*:

TK100 Series - ∆R less than 0.02%.

TK600 Series - ∆R less than 0.05%.

Dielectric Withstanding Voltage*:

TK100 Series - ∆R less than 0.02%.

TK600 Series - ∆R less than 0.05%.

Moisture Resistance*:

Mil-Std-202, Method 106,

1K to 500K ∆R less than 0.05%,

500.1K to 10.0 Meg ∆R less than 0.1%.

Load Life*: 2,000 hours at +125°C.

TK100 Series -

1K to 500K ∆R less than 0.07%,

500.1K to 1.5 Meg ∆R less than 0.1%.

TK600 Series -

1.51 Meg to 10 Meg ∆R less than 0.2%.

Shelf Life (Typical):

TK100 Series - 25 ppm/year.

TK600 Series - 50 ppm/year.

InsulationResistance: 10,000 Megohms.

Vibration*:

TK100 Series - ∆R less than 0.03%.

TK600 Series - ∆R less than 0.05%.

Shock*: ∆R less than 0.05%.

*Test methods per procedures of

Mil-PRF-55182/9.

DIMENSIONS IN INCHES AND (MILLIMETERS)