3545S-1-103L BOURNS Precision Potentiometer

Review BOURNS New Precision Potentiometer

The Bourns 3545S-1-103L Precision Potentiometer is a high-performance adjustable resistor designed for applications where precise voltage control is required. This potentiometer features a linear taper, which provides a consistent resistance change as the shaft is rotated, ensuring accurate calibration and stable performance.

The 3545S-1-103L model has a total resistance of 100 kilohms, with a 10:1 rotary travel ratio. This means the resistance changes from 0 ohms at the minimum position to 100 kilohms at the maximum position. The precision-machined carbon composition resistive element ensures excellent stability and repeatability, with a tolerance of /- 1% and a TCR (Temperature Coefficient of Resistance) of 22 ppm/ C.

The potentiometer is housed in a robust, epoxy-coated, metal chassis, which offers excellent electrical insulation and protection against environmental conditions. The shaft is made of stainless steel and features a knurled grip to ensure easy adjustment. The potentiometer also includes a detente mechanism at the 50% resistance point, making it ideal for applications where a precise midpoint setting is required.

The 3545S-1-103L Precision Potentiometer is suitable for various applications, including laboratory instruments, test equipment, and industrial control systems. Its high precision, stability, and rugged construction make it an excellent choice for applications that demand consistent and reliable voltage control. Additionally, it complies with RoHS and REACH directives, ensuring environmental friendliness.

The Bourns 3545S-1-103L is a precision potentiometer designed for applications that require high accuracy and stability. Here are some pros and cons of buying this potentiometer:

1. High Precision: The Bourns 3545S-1-103L offers a maximum resistance tolerance of /-0.1%, making it suitable for applications that require high precision and accuracy.

2. Low TCR: The potentiometer has a low Temperature Coefficient of Resistance (TCR) of 25 ppm/ C, which ensures good stability over temperature.

3. Wide Operating Temperature: It can operate in a temperature range of -55 C to 125 C, making it suitable for use in various environments.

4. Rotary and Linear Configurations: The potentiometer is available in both rotary and linear configurations, providing flexibility for different applications.

5. RoHS Compliant: The Bourns 3545S-1-103L is RoHS compliant, making it an environmentally friendly option.

1. Cost: The precision and stability of the Bourns 3545S-1-103L come at a cost. This potentiometer is more expensive than standard potentiometers.

2. Size: This potentiometer has a larger size compared to standard potentiometers due to its precision design.

3. Fragile: Precision potentiometers, in general, are more fragile than standard potentiometers. They require careful handling to avoid damage.

In conclusion, the Bourns 3545S-1-103L precision potentiometer is an excellent choice for applications that require high precision and stability, such as instrumentation, medical equipment, or calibration systems. Its low TCR, wide operating temperature range, and availability in both rotary and linear configurations make it a versatile option. However, its high cost and larger size may be a disadvantage for some applications. Ultimately, the decision to buy the Bourns 3545S-1-103L depends on the specific requirements of your application and your budget. If precision and stability are your top priorities, then the Bourns 3545S-1-103L is worth the investment.

Details:

We occasionally use ups ground saver for bigger packages. Please see the photos as these are a part of. Some items can't be combined and need to ship separately. It does not come with any manufacturers packaging or a warranty.

New open box - Bourns 3545S-1-103L precision potentiometer: this is a new, unused item. If purchasing a quantity greater than one of single item, that will automatically be billed, paid for, and shipped together in package.

specifications passivecompos:

• brand: Bourns
• mpn: 3545s-1-103l
• mounting style: Chassis Mount
• power rating: 1.5w
• shape: Round
• termination style: Solder Lug
• item diameter: 0.875 Dia
• minimum operating temperature: 1c
• type: Percision
• manufacturer warranty: No Warranty
• maximum operating temperature: 125 C
• resistance rating: 10 K
• country of origin: Mexico

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

shipping passivecompos:

• class: standard
• service: usps ground advantage
• type: calculated
• transit: 4-10 days
• carrier: usps

payments passivecompos:

• other
• credit card: mastercard
• wallet: paypal

seller passivecompos:

• rating: 100.0%
• city: saint charles, missouri
• # reviews: 166

offer passivecompos:

• started: february 23, 2026
• price: $102.75
• item condition: New
• availability: in stock
• sold #: 14
• options: ship-to-home
• in stock #: 1

returns passivecompos:

• policy: no returns