Need assistance? Call us: 1-800-663-4209
SA1-RTD-Series
Self-Adhesive Polyimide Fast Response RTD Surface Sensors, Class A Accuracy
Models In Stock
- Pt100 DIN Class A accuracy
- Easy installation with self-adhesive backing
- Ideal for flat or curved surfaces
- Temperature range: -73C to 260°C (-100°F to 500°F)
SA1-RTD-Series
From
$
133.27
Models In Stock
Can't find the right model?
Use our custom configurator to fine tune your product
Product Overview
- Accuracy Class A
- Accuracy Detail 100 Ω DIN Class A (± 0.06 Ω or ± 0.15°C at 0°C) Accuracy Standard
- Cable Material Nickel, Copper
- Insulation PFA
- Mounting Class DIN Platinum
- Nominal Resistance 100 Ω
- Process Temperature, Max 260 °C
- Process Temperature, Min -73 °C
- Response Time In Water Immersion : <0.9 sec ; On a Hot Plate: <2 sec
- Self Heating Effect 0.40 °C / mW
- Series ID SA1-RTD-Series
- Stability <0.2 °C
- Stability Note Stability: Less than 0.2°C drift/year
- Temperature Coefficient 0.00385 Ω/Ω/°C
- Temperature Coefficient Note α = 0.00385 Ω/Ω/°C
- Temperature Sensor Type RTD
- Wire Gauge 26 AWG
Supported Applications
The Omega SA1-RTD series consists of self-adhesive polyimide fast response RTD surface sensors designed for critical temperature monitoring. The product overview identifies specific use cases including monitoring chip, heat sink, and environmental temperatures in electronic devices; measuring piping and ducting temperatures; and assessing motor or transformer core temperatures.
Operating Conditions & Performance
The series features a thin-film platinum RTD element with a base resistance of 100 Ohms at 0°C, conforming to IEC 60751 (DIN Platinum RTD) standards. The sensor provides Class A accuracy tolerances defined as ±0.15+0.002t (where t=temperature in °C). Performance specifications include a continuous temperature rating of -73°C to 260°C (-100°F to 500°F), with short-term capability up to 290°C when cemented into place.
Response time is documented as less than 0.9 s (63% response time in water immersion) and less than 2 s on a hot plate. The sensing element measures 2 x 2 x 0.8 mm, mounted on a carrier measuring 25 x 19 mm.
Configuration Options
The SA1-RTD series is configurable across wire configurations, lead lengths, and cold-end terminations to accommodate specific installation needs.
- Wire Configuration: Available in 3-wire or 4-wire styles. The 4-wire configuration supports higher accuracy applications by eliminating lead resistance errors.
- Lead Lengths: Standard lengths include 1 m (40"), 2 m (80"), and 3 m (120"). Custom lead wire lengths are available at additional cost.
- Cold End Termination: Options include stripped leads with specific insulation/bare configurations, "MTP" style miniature flat 3-pin connectors, or TA4F connectors. For the TA4F connector on 4-wire models, pins 1 and 2 are common, while pins 3 and 4 are common.
- Mounting: The sensor features a silicone-based self-adhesive backing rated to 260°C (500°F). For higher temperatures or permanent mounting, OMEGABOND® cements are available: OB-100-16 (fast-setting epoxy, max 130°C), OB-200-16 (high temperature epoxy, max 260°C), and OB-700 powder cement (max 871°C).
- Protection: A stainless steel overbraid option is available by adding "-SB" to the model number for applications involving electrical noise or routing around sharp objects.
Key Product Differences
Variants within the series are distinguished primarily by wire count, lead length, and connector type. The 3-wire models (e.g., SA1-RTD-MTP) utilize stripped leads or MTP connectors across three standard lengths. The 4-wire models (e.g., SA1-RTD-4W-TA4F) offer the same length options but include TA4F connector variants specifically for 4-wire configurations.
Model number construction follows the pattern: SA1-RTD - <Style> - <Length> - <Cold End Termination>. For example, a 3-wire sensor with an MTP connector and 2 m length is designated as SA1-RTD-MTP (with the specific length code implied or explicit in ordering). The series supports both stripped lead terminations for direct wiring and pre-installed connectors to streamline integration.
PDFs & Manuals
Accessories
accessories
SA1-RTD Surface-Mount RTD Temperature sensor | Quick Shipment
$225.86 / each
3 In Stock
SA1-RTD Surface-Mount RTD Temperature sensor | Quick Shipment
$197.11 / each
4 In Stock
SA1-RTD Surface-Mount RTD Temperature sensor | Quick Shipment
$190.73 / each
0 In Stock
Show Ratings & Reviews
Rated 5 out of
5
by
SolarCowboy from
BOM sensor
I ordered temperature sensors to monitor solar panels temperature to analyze performance
Date published: 2016-10-23
Rated 4 out of
5
by
Peter R from
Works great
Does exactly what it says it does. Installed easily with epoxy from omega. Plenty accurate for our purposes. Cost effective
Date published: 2017-02-28
Rated 5 out of
5
by
2NinerRomeo from
These things work great
They shipped fast, and appear to have great accuracy and low noise,
Would buy again.
Date published: 2024-12-10
Rated 5 out of
5
by
Zallcom from
Perfect service five stars
It was perfect, i enjoyed working with you . I will shop again next time
Date published: 2024-05-26
Rated 5 out of
5
by
Yavne G CTM Magnetics from
Great Purchase
good quality product.
customer service is always there to help
Date published: 2024-02-15
Rated 5 out of
5
by
Zac1 from
RTD Sensor
RTD's worked as we expected and were easy to order.
Date published: 2023-10-16
Rated 5 out of
5
by
Anonymous from
Good customer service and quality product.
Worked as expected, purchase was easy and customer service rep was very helpful and answered all my questions before order.
Date published: 2023-07-18
Rated 5 out of
5
by
PPro Engineering from
Communication
There were some issues with raw materials and was never communicated. I had to expedite the order to find out that the order has been delayed. However, Omega was very helpful to escalate the issue and sort out the raw material issue in good time.
Date published: 2023-05-26
I'm interested in purchasing one of these, but I can't find information regarding acceptable current bounds; can you give me an estimate on minimum required current to operate this sensor, and maximum not to toast it?
Hi EAML,
Normal excitation current is 1mA or less. Minimum current level is determined by the instrument being used.
Higher levels will cause readings to be affected by self heating errors. We do not have established current level which can cause burnout.
Best regards
OMEGA
Date published: 2020-06-09
It says, 'back can be reapplied' in the product description. Is there back adhesive material that can be used for this RTD?
The SA1-RTD if carefully removed can be reattached but each time will lose some of its adherent properties. Sometimes when it no longer sticks a piece of Kapton tape can be laid over the top to hold it in place,
Date published: 2020-04-15
Hi, could you please send me or link here a "Resistance vs Temperature table" for the SA1-RTD (3 wires)? Regards.
Thank you for your inquiry Sborzy. Please review the following link for the table: https://assets.omega.com/tech-ref-legacy-pdfs/z252-254.pdf
Date published: 2022-08-25
What is the best method to cut the PFA wire covering to get access to more of the leads?
Omega sells the TW-6 which is designed to remove the outer insulation of wires with ease. You can enter TW-6 in the search box on Omega's web page for further details.
Date published: 2020-05-11
In the spec sheet, there are tolerances listed for down to -200°C. My application requires use down to -100°C; is -73°C the cutoff for optimal precision, or does the sensor stop working below this minimum temperature rating?
These RTD probes will work down to -100C and lower but the adhesive is not effective below-73C so the should be mechanically secured.
Date published: 2024-02-23
What is the recommended method of calibrating these sensors?
Thank for your inquiry. Surface Wire Sensor when calibrated, is done before the adhesive pad is attached. Not after. We recommend purchase calibrated sensors from OMEGA.
Date published: 2023-07-26
How to calculate temperature error for adhesive film between RTD and surface? How much error should I expect from the adhesive if my surface temperature is 100C and air temperature is 25C?
Hi TEBrian,
Thank you for the inquiry. Please forward this question to TEMP@OMEGA.COM.
Best regards,
OMEGA
Date published: 2023-08-02
The data sheet mentions installation using Omegabond thermal epoxy. What is the correct/recommended process for epoxy install? Does the polyimide tape get completely removed, and then epoxy the RTD on? Seems like tape on epoxy would not create a good bond
Thank you for your inquiry RPeebs. You will need to use thermal conductive epoxy that way you don't block the heat from coming into contact with the probe. The pad should not affect the temperature measurement if you decide to use epoxy in conjunction with the adhesive pad.
Date published: 2022-08-25