TNPW04021K18BEED Equivalent & Substitute Parts

Part Overview

The TNPW04021K18BEED is a 1.18 kOhms ±0.1% thin film chip resistor manufactured by Vishay Dale in 0402 (1005 Metric) package format. This component is rated for 0.13W power dissipation with automotive AEC-Q200 qualification, anti-sulfur coating, and moisture resistance. The part is active in production with 9512 units currently in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility.

Substiute Parts

TNPW04021K18BEED

Vishay DaleIn Stock: 9526TNPW04021K18BEED Datasheet

Current PartRFQ

CPF0402B1K18E1

TE Connectivity Passive ProductIn Stock: 3396CPF0402B1K18E1 Datasheet

DirectRFQ

ERA-2AEB1181X

Panasonic Electronic ComponentsIn Stock: 21036ERA-2AEB1181X Datasheet

DirectRFQ

RT0402BRD071K18L

YAGEOIn Stock: 3227RT0402BRD071K18L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Resistance Value: All substitute parts must match 1.18 kOhms exactly
• Tolerance: All substitute parts must maintain ±0.1% tolerance
• Package Format: All substitute parts must use 0402 (1005 Metric) package
• Composition: All substitute parts must be thin film construction
• Temperature Coefficient: All substitute parts must match ±25ppm/°C
• Compliance: All substitute parts must be ROHS3 compliant with MSL 1 rating

The three identified substitute parts (CPF0402B1K18E1, ERA-2AEB1181X, RT0402BRD071K18L) meet these core substitution criteria. A design consideration exists regarding power rating: the main part is rated at 0.13W, while all substitute parts are rated at 0.063W (1/16W). This difference requires thermal analysis to confirm suitability in the target application.

Parameter Comparison

Engineering Selection Recommendations

For Automotive Applications (AEC-Q200 Required): ERA-2AEB1181X is the primary substitute option. This part maintains AEC-Q200 automotive qualification matching the original TNPW04021K18BEED specification. Operating temperature range is -55°C ~ 155°C, which is 20°C lower than the main part. Power rating is 0.063W versus 0.13W on the original.

For Non-Automotive Applications: CPF0402B1K18E1 and RT0402BRD071K18L are suitable alternatives. Both parts meet core electrical and mechanical parameters. CPF0402B1K18E1 offers 3316 units in stock, while RT0402BRD071K18L provides 3118 units.

Critical Design Consideration: All substitute parts have reduced power ratings (0.063W) compared to the main part (0.13W). Applications requiring the full 0.13W dissipation capability must confirm thermal performance through circuit analysis before substitution.

Temperature Range Limitation: All substitute parts operate to 155°C maximum, versus 175°C for the main part. Applications requiring operation above 155°C cannot use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B1K18E1 be used in automotive applications? A: No. CPF0402B1K18E1 does not carry AEC-Q200 automotive qualification. For automotive designs, use ERA-2AEB1181X.

Q: What is the impact of the lower power rating on substitute parts? A: Substitute parts are rated at 0.063W versus 0.13W on the original. The circuit must dissipate less than 0.063W through the resistor. Thermal analysis of the specific application is required to confirm compatibility.

Q: Are all substitute parts electrically identical? A: All substitute parts match the main part in resistance (1.18 kOhms), tolerance (±0.1%), temperature coefficient (±25ppm/°C), and package format (0402). Differences exist in power rating, maximum operating temperature, and automotive certification.

Q: Can substitute parts be used in designs requiring 175°C operation? A: No. All substitute parts have a maximum operating temperature of 155°C. The original TNPW04021K18BEED operates to 175°C. Applications requiring 175°C operation must use the original part or identify alternative solutions.

Q: Which substitute part has the highest inventory availability? A: ERA-2AEB1181X has 20976 units in stock, providing the best supply availability among the three substitute options.

Q: Are all parts RoHS3 compliant? A: Yes. The main part and all three substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).