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Type TF Low TC Ultra-Precision Film Resistors
Absolute TC to 5 ppm/C, Values from 1 Kohm to 125 Megohms, Absolute Tolerance to 0.01%
Type TF precision resistors employ the Caddock Tetrinox (R) resistance films - the resistance system that sets a new standard for high value, ultra-stable precision resistors that provide an exceptional combination of performance characteristics: * Ultra-Precision - Five standard resistance tolerances from 1% to 0.01%. * A Wide Range of Resistance Values - from 1 Kohm to 125 Megohms. * Low Temperature Coefficient - 5 ppm/C, 10 ppm/C, or 15 ppm/C. * Long-Term Stability - to 0.01% per 1,000 hours. This approach to quantity production of ultra-precision discrete resistors is the result of combining our unique complex oxide resistance film technology with an advanced high thru-put laser manufacturing capability.
Type TF - Standard Resistance Range - 1 Kohm to 10 Megohms
Model Number Axial Leads Radial Leads
TF020 N TF050 N
TF020 R TF050 R
Wattage @ +70C 0.33 0.75
Maximum Continuous Oper. Voltage
300 1,400
Resistance Min.
1K 10 K
Dimensions inches (mm) A B
Specifications:
Apply to all Type TF resistor models. Absolute Temperature Coefficient: 5 ppm/C, 10 ppm/C, or 15 ppm/C referenced to +25C, R taken at -15C and +105C. Resistance Tolerance: 0.01%, 0.025%, 0.05%, 0.10%, or 1.0%. Load Life: For 0.10% or tigher tolerance, 1,000 hours at +70C. Load stability versus applied power is shown in the load stability curve on this page. Storage Temperature: -55C to +105C. Leadwire: Tinned Copper. Derating Curve:
100 80
RATED LOAD, %
Max.
2 Meg 10 Meg
RATED LOAD, %
.750 .020 (19.05 .51)
.375 .020 (9.53 .51)
1.500 .020 .500 .020 (38.10 .51) (12.70 .51)
100 80 60 40 20 0 0.01%
0.02% 0.03%
Shelf Life: Typically 0.0025% per year
Load Stability:
MAXIMUM %R per 1,000 HOURS
Type TF - Extended Resistance Range - 2 Megohms to 125 Megohms
Model Number Axial Leads Radial Leads
TF626 N TF656 N
TF626 R TF656 R
@ +70C
Wattage 0.33 0.75
Maximum Continuous Oper. Voltage
300 1,400
Resistance Min.
2.01 Meg 10.01 Meg
Dimensions inches (mm) A .750 .020 (19.05 .51) 1.500 .020 (38.10 .51) B .375 .020 (9.53 .51) .500 .020 (12.70 .51)
Max.
35 Meg 125 Meg
60 40 20 0
0 35 70 105
Shelf Life: Typically 0.005% per year
Load Stability: 1,000 hours at rated voltage at +70C, maximum R 0.03%
A
CADDOCK TF020R 0418
AMBIENT TEMPERATURE, C
1.500 .125 (38.10 3.18)
A
CADDOCK TF020N 0428
.075 .020 (1.91 .51)
.032 (.81)
.075 .020 (1.91 .51)
Ordering Information:
TF050R - 10.0 Meg - 0.01% - 10 ppm/C
Model Number Tolerance Temperature Coefficient Resistor Value
B
.50 .125 (12.70 3.18)
B
.032 (.81)
DIMENSIONS IN INCHES AND (MILLIMETERS)
.600 .020 (15.24 .51) for Models TF020R and TF626R 1.350 .020 (34.29 .51) for Models TF050R and TF656R
Radial Lead Spacing:
Custom Type TF Resistors
Additional cost savings can be realized when your high volume ultra-precision Type TF resistor is optimized for: * Lightning transient capability * Voltage rating * Power rating * Mechanical configuration * Ratio matched sets
Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408
(c) 2004 Caddock Electronics, Inc.
And for special requirements, custom Type TF resistors are available with: 20 ppm/C, or 25 ppm/C.
* TC of 5 ppm/C, 10 ppm/C, 15 ppm/C, * Shelf stability of 0.0025% per year.
Type TF resistors can also be produced with custom-spaced radial leads that will plug directly into your existing circuit layout.
Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151
28_IL116.1004
CADDOCK
e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html

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