RT0402FRE0746R4L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0746R4L is a 46.4 Ohm ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This surface mount resistor is rated for 0.063W (1/16W) power dissipation with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is ROHS3 compliant with MSL 1 rating and is currently in active production status. Equivalent and substitute parts are identified based on matching resistance value, package format, and electrical performance parameters within acceptable tolerance and power rating specifications.

Substiute Parts

RT0402FRE0746R4L

YAGEOIn Stock: 830RT0402FRE0746R4L Datasheet

Current PartRFQ

CPF0402B46R4E1

TE Connectivity Passive ProductIn Stock: 1080CPF0402B46R4E1 Datasheet

UpgradeRFQ

ERJ-2RKF46R4X

Panasonic Electronic ComponentsIn Stock: 126558ERJ-2RKF46R4X Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE0746R4L are qualified based on the following criteria:

Core Matching Parameters:

• Resistance value: 46.4 Ohms (exact match required)
• Package format: 0402 (1005 Metric) (exact match required)
• Operating temperature range: -55°C to 155°C (minimum requirement)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)
• Moisture sensitivity: MSL 1 or equivalent (handling requirement)

Allowable Variations:

• Tolerance: ±1% or better (tighter tolerance acceptable)
• Power rating: 0.063W minimum (higher ratings acceptable)
• Composition: Thin film or thick film (both acceptable for this resistance value)
• Temperature coefficient: ±50ppm/°C or better (lower values acceptable)

Two substitute parts meet these criteria: CPF0402B46R4E1 (upgrade specification with tighter tolerance) and ERJ-2RKF46R4X (manufacturer-recommended alternative with higher power rating and automotive qualification).

Parameter Comparison

Engineering Selection Recommendations

CPF0402B46R4E1 (TE Connectivity) is suitable as an upgrade substitute where improved tolerance performance is required. This part maintains identical package dimensions, power rating, and thermal operating range while providing ±0.1% tolerance and superior temperature coefficient (±25ppm/°C). Both parts are ROHS3 compliant with MSL 1 rating and active production status.

ERJ-2RKF46R4X (Panasonic) is the manufacturer-recommended alternative and is qualified for automotive applications under AEC-Q200 standard. This part offers higher power dissipation capability (0.1W versus 0.063W) and maintains the same resistance value and tolerance. The maximum seated height increases to 0.016" (0.40mm) compared to 0.014" (0.35mm) for the main part. Temperature coefficient is ±100ppm/°C. This part is suitable for applications requiring automotive-grade reliability or where additional thermal margin is beneficial.

All three parts are ROHS3 compliant, MSL 1 rated, and support the full -55°C to 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B46R4E1 be used as a direct replacement for RT0402FRE0746R4L?

A: Yes. Both parts share identical resistance (46.4 Ohms), package format (0402), power rating (0.063W), and operating temperature range (-55°C to 155°C). CPF0402B46R4E1 provides tighter tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), making it suitable for applications requiring higher precision.

Q: What are the physical differences between these parts?

A: RT0402FRE0746R4L and CPF0402B46R4E1 have identical dimensions: 0.039" L x 0.020" W with maximum seated height of 0.014" (0.35mm). ERJ-2RKF46R4X has the same length and width but maximum seated height of 0.016" (0.40mm), a 0.001" (0.01mm) difference that may affect PCB layout in space-constrained applications.

Q: When should ERJ-2RKF46R4X be selected over the other options?

A: ERJ-2RKF46R4X is the appropriate choice for automotive applications requiring AEC-Q200 qualification or when higher power dissipation margin (0.1W versus 0.063W) is needed. The thicker film composition and higher temperature coefficient (±100ppm/°C) are acceptable trade-offs for automotive-grade reliability.

Q: Are all three parts available in Tape & Reel packaging?

A: Yes. RT0402FRE0746R4L, CPF0402B46R4E1, and ERJ-2RKF46R4X are all supplied in Tape & Reel (TR) packaging format suitable for automated assembly processes.

Q: Do these parts have different moisture sensitivity requirements?

A: No. All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions and no special storage or handling requirements.