RN55C2003DB14 Equivalent & Substitute Parts

Part Overview

The RN55C2003DB14 is a 200 kOhms ±0.5% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. Manufactured by Vishay Dale, this component is part of the military-grade RN55 series compliant with MIL-R-10509/7 specifications. The part features flame retardant coating, moisture resistance, and safety-rated construction suitable for military and high-reliability applications. Currently in active production status with 844 units in stock, this resistor serves as a reference component for applications requiring stable resistance values across extended temperature ranges (-65°C to 175°C). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering improved tolerance specifications or enhanced availability.

Substiute Parts

RN55C2003DB14

Vishay DaleIn Stock: 944RN55C2003DB14 Datasheet

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RN55E2003BB14

Vishay DaleIn Stock: 1520RN55E2003BB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN55C2003DB14 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 200 kOhms (exact match required)
• Power rating: 0.125W minimum (equal or higher acceptable)
• Package type: Axial (mechanical compatibility)
• Composition: Metal film (electrical performance consistency)
• Operating temperature range: -65°C to 175°C minimum (or wider)
• Series compliance: Military-grade RN55 series, MIL-R-10509/7

Tolerance Consideration: Tolerance specifications may be tighter (lower numerical value) than the reference part without affecting substitution validity, as tighter tolerances represent improved performance characteristics within the same resistance value and package configuration.

The RN55E2003BB14 qualifies as a direct substitute based on matching all primary criteria while offering improved tolerance specification (±0.1% versus ±0.5%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RN55C2003DB14 and RN55E2003BB14 maintain active production status and are suitable for military and high-reliability applications. Selection between these components should be based on the following engineering considerations:

RN55C2003DB14 Selection:

• Applications where ±0.5% tolerance specification is sufficient
• Designs with established qualification history for this specific part number
• Inventory availability constraints favoring the reference part

RN55E2003BB14 Selection:

• Circuits requiring tighter tolerance control (±0.1% specification)
• Applications sensitive to temperature coefficient drift (±25ppm/°C versus ±50ppm/°C)
• Designs benefiting from improved long-term stability
• Higher inventory availability (1440 units versus 844 units)

Both components comply with MIL-R-10509/7 military specifications, feature identical mechanical packaging, and maintain equivalent operating temperature ranges. Neither component is RoHS compliant; both are REACH Affected. Component selection should align with circuit tolerance requirements and thermal stability demands.

Frequently Asked Questions (FAQ)

Q: Can RN55E2003BB14 be used as a direct replacement for RN55C2003DB14?

A: Yes. The RN55E2003BB14 is electrically and mechanically compatible as a direct substitute. Both components share identical resistance values (200 kOhms), power ratings (0.125W), package configurations (axial), and operating temperature ranges (-65°C to 175°C). The substitute offers improved tolerance (±0.1% versus ±0.5%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C).

Q: What are the key differences between these two resistors?

A: The primary differences are tolerance specification and temperature coefficient. RN55E2003BB14 provides ±0.1% tolerance compared to ±0.5% for RN55C2003DB14, and exhibits a temperature coefficient of ±25ppm/°C versus ±50ppm/°C. These represent performance improvements rather than functional differences. All other electrical and mechanical parameters remain identical.

Q: Are both parts suitable for military applications?

A: Yes. Both RN55C2003DB14 and RN55E2003BB14 are military-grade components compliant with MIL-R-10509/7 specifications. Both feature flame retardant coating, moisture resistance, and safety-rated construction appropriate for military and high-reliability applications.

Q: Does the axial package configuration remain the same for both parts?

A: Yes. Both components utilize identical axial package configuration with matching physical dimensions (0.090" Dia x 0.240" L / 2.29mm x 6.10mm). No PCB layout modifications or mechanical adjustments are required when substituting between these parts.

Q: What is the significance of the temperature coefficient difference?

A: Temperature coefficient indicates resistance value drift across the operating temperature range. RN55E2003BB14 exhibits lower drift (±25ppm/°C) compared to RN55C2003DB14 (±50ppm/°C). In applications spanning the full -65°C to 175°C range, this results in improved resistance stability and reduced temperature-induced measurement errors.

Q: Are there any compliance or regulatory differences between these components?

A: Both components share identical compliance status. Neither is RoHS compliant; both are REACH Affected. ECCN and HTSUS classifications are identical for both part numbers.