WSLP08059L000FEK18 Equivalent & Substitute Parts

Part Overview

The WSLP08059L000FEK18 is a 9 mOhms ±1% 1W chip resistor manufactured by Vishay Dale in 0805 (2012 Metric) package configuration. This current sense resistor features metal element composition with anti-sulfur, moisture resistant, and pulse withstanding characteristics. The part is active in production status and widely used in precision current measurement and sensing applications where low resistance values and high accuracy are required.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs, subject to package footprint and thermal management considerations.

Substiute Parts

WSLP08059L000FEK18

Vishay DaleIn Stock: 1010WSLP08059L000FEK18 Datasheet

Current PartRFQ

PE2512FKE070R009L

YAGEOIn Stock: 4880PE2512FKE070R009L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WSLP08059L000FEK18 is determined by the following critical parameters:

• Resistance Value: 9 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 1W (exact match required)
• Operating Temperature Range: Must encompass or equal the original specification (-65°C ~ 170°C minimum)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) or equivalent

Package differences (0805 vs. 2512) represent mechanical substitution scenarios where circuit board layout and thermal dissipation capacity permit larger footprints. Composition differences (Metal Element vs. Metal Film) are acceptable when electrical performance parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

The PE2512FKE070R009L (YAGEO) qualifies as an electrical equivalent to the WSLP08059L000FEK18 based on matching resistance, tolerance, and power rating specifications. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Selection between these parts depends on circuit board design constraints:

• WSLP08059L000FEK18 (0805 package): Use when space-constrained PCB layouts require minimal footprint and height clearance.
• PE2512FKE070R009L (2512 package): Use when thermal dissipation requirements benefit from larger package geometry, or when automotive AEC-Q200 qualification is specified. The 2512 package provides improved heat spreading capability due to increased surface area.

The PE2512FKE070R009L exhibits a lower temperature coefficient (±50ppm/°C vs. ±75ppm/°C), which may provide superior stability in temperature-sensitive applications. The operating temperature range of the YAGEO part (-55°C ~ 170°C) is narrower at the lower bound compared to the Vishay Dale part (-65°C ~ 170°C); this difference is significant only in applications requiring operation below -55°C.

Frequently Asked Questions (FAQ)

Q: Can PE2512FKE070R009L replace WSLP08059L000FEK18 in all applications?

A: Electrical substitution is valid when circuit design permits the larger 2512 package footprint (6.35mm x 3.18mm vs. 2.03mm x 1.27mm). PCB layout, component spacing, and thermal management must accommodate the increased dimensions and height (0.89mm vs. 0.58mm).

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

A: The PE2512FKE070R009L has a lower temperature coefficient (±50ppm/°C) compared to WSLP08059L000FEK18 (±75ppm/°C). This means the YAGEO part exhibits smaller resistance changes across temperature variations, which is beneficial in precision current sensing circuits operating across wide temperature ranges.

Q: Are there operating temperature range limitations?

A: The WSLP08059L000FEK18 operates from -65°C to 170°C, while the PE2512FKE070R009L operates from -55°C to 170°C. The Vishay Dale part supports 10°C lower minimum temperature. If your application requires operation below -55°C, the WSLP08059L000FEK18 is required.

Q: What does the AEC-Q200 rating on the YAGEO part indicate?

A: AEC-Q200 is an automotive qualification standard. The PE2512FKE070R009L meets automotive reliability and quality requirements, making it suitable for automotive current sensing applications where this certification is specified.

Q: How do package differences affect thermal performance?

A: The 2512 package (PE2512FKE070R009L) has greater surface area than the 0805 package (WSLP08059L000FEK18), enabling more efficient heat dissipation. In high-current applications, the larger package may provide better thermal management and lower junction temperatures.

Q: Are both parts RoHS compliant?

A: Yes, both WSLP08059L000FEK18 and PE2512FKE070R009L are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), meeting current environmental and reliability standards.