RNF12BTC100R Equivalent & Substitute Parts

Part Overview

The RNF12BTC100R is a 100 Ohm metal film axial through-hole resistor manufactured by Stackpole Electronics Inc. This component is rated for 0.5W (1/2W) power dissipation with ±0.1% tolerance and features flame retardant coating for safety applications. The part is Active in product status and maintains full compliance with RoHS3 and REACH regulations. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory certifications align with the original component requirements.

Substiute Parts

RNF12BTC100R

Stackpole Electronics IncIn Stock: 1131RNF12BTC100R Datasheet

Current PartRFQ

CMF55100R00BHEB

Vishay DaleIn Stock: 1645CMF55100R00BHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF12BTC100R are qualified based on the following electrical and mechanical parameters:

• Resistance value: 100 Ohms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Regulatory compliance: RoHS3 and REACH status (must maintain or exceed)
• Operating temperature range: Must support minimum -55°C ~ 155°C

The CMF55100R00BHEB from Vishay Dale meets all substitution criteria. This component maintains identical electrical specifications while offering an extended operating temperature range (-55°C ~ 175°C) and additional moisture resistance features.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12BTC100R and CMF55100R00BHEB are Active products with full RoHS3 compliance and REACH unaffected status, making either suitable for regulated applications. The CMF55100R00BHEB provides extended temperature range capability (-55°C ~ 175°C versus -55°C ~ 155°C) and moisture resistance, offering enhanced performance margins for demanding environments. Selection between these components should be based on application temperature requirements and environmental exposure conditions. Both components are electrically and mechanically interchangeable for standard circuit applications within the RNF12BTC100R operating range.

Frequently Asked Questions (FAQ)

Q: Can CMF55100R00BHEB replace RNF12BTC100R in all applications?

A: Yes, within the RNF12BTC100R operating temperature range (-55°C ~ 155°C). The CMF55100R00BHEB maintains identical electrical specifications and regulatory compliance. The extended temperature range and moisture resistance of the CMF55100R00BHEB provide additional capability without compromising compatibility.

Q: Are there physical dimension differences between these parts?

A: Yes. The RNF12BTC100R measures 0.108" Dia x 0.344" L (2.75mm x 8.75mm), while the CMF55100R00BHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). The CMF55100R00BHEB is physically smaller. Verify PCB layout and mechanical clearances before substitution.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel packaging is supplied on continuous reels for automated assembly processes. Cut Tape packaging is supplied in individual tape segments. Both contain the same component; packaging selection depends on assembly method and volume requirements.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both RNF12BTC100R and CMF55100R00BHEB are RoHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components in regulated markets.

Q: What tolerance does ±0.1% represent?

A: For a 100 Ohm resistor with ±0.1% tolerance, the acceptable resistance range is 99.9 Ohms to 100.1 Ohms. This tight tolerance is suitable for precision measurement and calibration circuits.