RNC55K3482FSB14 Equivalent & Substitute Parts

Part Overview

The RNC55K3482FSB14 is a 34.8 kOhms ±1% 0.125W through-hole axial resistor manufactured by Vishay Dale. This metal film resistor is designed for military applications and features moisture-resistant, weldable construction compliant with MIL-PRF-55182/01 specifications. The part is currently active in production with 752 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component procurement, inventory management, or design flexibility within the same military-grade resistor series.

Substiute Parts

RNC55K3482FSB14

Vishay DaleIn Stock: 815RNC55K3482FSB14 Datasheet

Current PartRFQ

RNC55H3482FSB14

Vishay DaleIn Stock: 974RNC55H3482FSB14 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

The RNC55H3482FSB14 qualifies as a substitute for the RNC55K3482FSB14 based on the following critical parameters:

• Identical resistance value: 34.8 kOhms
• Identical tolerance: ±1%
• Identical power rating: 0.125W (1/8W)
• Identical composition: Metal Film
• Identical package type: Axial
• Identical operating temperature range: -65°C to 175°C
• Identical physical dimensions: 0.094" Dia x 0.250" L (2.39mm x 6.35mm)
• Identical series classification: Military, MIL-PRF-55182/01, RNC55
• Identical features: Military, Moisture Resistant, Weldable
• Identical number of terminations: 2
• Identical failure rate: S (0.001%)

The substitute part differs only in temperature coefficient specification (±50ppm/°C versus ±100ppm/°C for the main part), which represents an upgrade in thermal stability while maintaining all other electrical and mechanical compatibility requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the RNC55K3482FSB14 and RNC55H3482FSB14 are active production parts from Vishay Dale within the military-grade RNC55 series. Selection between these parts is determined by temperature coefficient requirements. The RNC55K3482FSB14 features a temperature coefficient of ±100ppm/°C, while the RNC55H3482FSB14 provides improved thermal stability at ±50ppm/°C. Applications requiring tighter resistance stability across the full operating temperature range of -65°C to 175°C should specify the RNC55H3482FSB14. Both parts maintain identical electrical performance, mechanical compatibility, and military compliance specifications. Inventory availability is higher for the RNC55H3482FSB14 (939 units versus 752 units).

Frequently Asked Questions (FAQ)

Q: Can the RNC55H3482FSB14 be used as a direct replacement for the RNC55K3482FSB14?

A: Yes. Both parts share identical resistance value, tolerance, power rating, package type, physical dimensions, and operating temperature range. The RNC55H3482FSB14 provides superior temperature coefficient performance (±50ppm/°C versus ±100ppm/°C), making it functionally compatible and electrically superior for direct substitution.

Q: What is the difference between these two resistor models?

A: The primary difference is the temperature coefficient specification. The RNC55K3482FSB14 has a temperature coefficient of ±100ppm/°C, while the RNC55H3482FSB14 has ±50ppm/°C. This means the RNC55H3482FSB14 maintains more stable resistance values across temperature variations. All other parameters, including resistance value, tolerance, power rating, package dimensions, and military specifications, are identical.

Q: Are both parts suitable for military applications?

A: Yes. Both the RNC55K3482FSB14 and RNC55H3482FSB14 are military-grade resistors compliant with MIL-PRF-55182/01 specifications. Both feature moisture-resistant, weldable metal film construction and are classified within the RNC55 military series with identical failure rates of S (0.001%).

Q: Do these resistors have the same physical footprint?

A: Yes. Both parts have identical axial package dimensions of 0.094" diameter by 0.250" length (2.39mm x 6.35mm). They are mechanically interchangeable in PCB layouts and through-hole designs.

Q: Which part should I select for my design?

A: Selection depends on temperature coefficient requirements. If your circuit operates across the full -65°C to 175°C temperature range and requires stable resistance values, the RNC55H3482FSB14 with ±50ppm/°C is the appropriate choice. If the application tolerates ±100ppm/°C drift, either part is acceptable. Both are active production parts with adequate inventory availability.