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Printable version

PT146 .25W Custom (+) TCR Temperature Sensitive Wire Wound Axial Compensator


PT146 .25W Custom (+) TCR Temperature Sensitive Wire Wound Axial Compensator

Technical Information

Mounting
Thru-hole
Resistance
1Ω to 20KΩ
Tolerance
to ±.05%
Power Rating
0-.25W
TCR Char.
+6000 PPM /°C.
Max Watts
.25
Lead Free
Yes
Temperature
-65°C. to +150°C.
Length
13.21mm (.520")
Diameter
4.75mm (.187")
Stability
to less than ±.01% per year at 25°C
Type
Axial
Lead Dimensions
.028" X 1.5"
  • Detailed Images

  • Details and Order Info

  • Electrical & Physical Specs

  • Attributes & Derating Table

CAN'T FIND THE PART TO MATCH YOUR SPECS?

Then let PRC custom manufacture your wire wound resistor, sensor, or shunt with some of the shortest lead times in the industry. Engineering samples can be supplied at no cost to you in 7-10 days for most jobs. Computer tracking charts are available for reference with certain part types. If you need a specific marking on your part(s) we will custom print your order with the marking you desire & at no additional cost to you. If needed, you can interchange the size, shape, lead dimension, wattage, voltage, current, Ω value, tolerance, & TCR characteristics with most part types. Visit our Compensator Series & see if one of our other parts from the same series will satisfy all your requirements. If you still do not find a part that meets the exact specifications your application requires, simply follow the link Contact/Request For Quote & fill in all known spec fields. One of our highly trained engineers will review your objectives and see if we can modify one of our standard parts to satisfy all your requirements. If you are unsure how to accurately complete this form, give us a call & someone from our sales department will be more than happy to assist you.

ORDERING PROCEDURE

Our sales department is available to provide price, delivery, lead time & all other pertinent ordering instructions to companies within the U.S.A. If you wish to place an order in the United States, simply give us a call & ask for the Sales Department, our contact information is at the very top of every page. For companies outside the U.S.A., we have sales representatives in over 30 different countries to assist you. Click the link International Sales Representative Map to locate the sales representative nearest to your region & view their contact information. Our international sales representatives are readily available & eager to answer all inquiries regarding pricing, lead time, & ordering instructions as well as any other questions you may have.

Electrical & Physical Specifications:

A-Length: 13.21mm (.520")
B-Diameter:4.75mm (.187")
Lead dimensions: .028" dia. X 1.5" long (min.)

Compensator Attributes:

LINEAR COMPENSATION
PRC's type PT/ST (+) TCR Characteristics +3500 PPM/°C. linear tracking temperature sensitive resistors help you develop the desired compensation for true RMS measurements...and can offset errors in dB output circuits.
TOLERANCE FOR (+) 3500 PPM/°C.
Less than ±100 PPM/°C from +25°C. to +100°C. If you are looking for a systems offset of +3350 PPM/°C to +3450 PPM/°C. try a few engineering samples of our off-the-shelf compensators. We are confident you can achieve dramatic results. The element wire used on our type PT/ST, as a rule, is very close to +3350 PPM/°C. @ 25°C. & lower than +3450 PPM/°C. @ 100°C. See figure #4 below.
OFF THE SHELF FOR IMMEDIATE DELIVERY
Thru-hole & SMD designs are available for evaluation & testing. We have our PT series for 2 terminal type or our AT35 for 4 terminal type. If you have plans for SMD/SMT, our type ST35 is a drop in replacement for the thru-hole part w/ interchangeable specs. All our standard 1000Ω ±1% +3500 PPM Compensators are in stock!
CUSTOM COMPENSATORS
We can customize any of our compensators to fit your specs in any Ohmic value from 1Ω to 50KΩ We have pure metals, alloys, & composite windings available. All of which are extremely linear, reasonably priced & delivered quickly.
TRACKING CHART
Constant temperature oil bath computer tracking charts are available to match temp. span & behavior specs exactly.
COMPENSATORS VS. POWER
PRC's positive (+) TCR resistors are used to offset negative (-) ambient temperature changes or counter self-generating shifts in resistance w/ an excitation of power to .25W @ +125°C. Derated to 0W @ +150°C.
STABILITY
Standard: ±.05%/year @ +25°C.
Special: Less than ±.01%/year @ +25°C.
MARKING
PRC stamp, part type, resistance value, tolerance & TCR characteristics, physical size permitting.
PROTECTIVE SEAL
Standard: Conformal silicone or epoxy case.
Special: Thermal conductive insulating coatings or uncoated.
TCR CHARACTERISTICS AVAILABLE
Temperature Coefficient of Resistance (TCR*)
+80 ppm/°C +3930 ppm/°C
+140 ppm/°C +4300 ppm/°C
+400 ppm/°C +4500 ppm/°C
+1400 ppm/°C +5000 ppm/°C
+3500 ppm/°C +6000 ppm/°C
*TCR based upon avg. PPM change in res./°C. from +25°C. to +100°C.