WR12X8870FTL Equivalent & Substitute Parts

Part Overview

The WR12X8870FTL is a 887 Ohm ±1% 0.25W thick film chip resistor manufactured by Walsin Technology Corporation in the 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is designed for general-purpose resistive applications requiring precision tolerance and moderate power dissipation in compact form factors.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

WR12X8870FTL

Walsin Technology CorporationIn Stock: 744WR12X8870FTL Datasheet

Current PartRFQ

CR088870F

MeritekIn Stock: 6176CR088870F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WR12X8870FTL is determined by strict alignment of the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Resistance value: 887 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W minimum
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: -55°C to 155°C minimum

Mechanical Equivalence Criteria:

• Package designation: 1206 (3216 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Equivalence Criteria:

• RoHS3 Compliant status
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

The substitute part CR088870F manufactured by Meritek meets all specified electrical, mechanical, and compliance parameters and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the WR12X8870FTL and CR088870F are Active product status components with identical electrical specifications and full compliance with ROHS3 and REACH requirements. The CR088870F substitute part demonstrates equivalent performance across all critical parameters including resistance value, tolerance, power dissipation capability, and temperature operating range.

Mechanical dimensions show minor variations in length (3.10mm versus 3.20mm) and seated height (0.75mm versus 0.60mm), both within standard PCB layout tolerances for 1206 package footprints. The CR088870F exhibits a lower maximum seated height, which may provide advantages in space-constrained applications.

Both components carry Moisture Sensitivity Level 1 classification, indicating unlimited shelf life under standard storage conditions without desiccant requirements.

Frequently Asked Questions (FAQ)

Q: Can CR088870F be used as a direct replacement for WR12X8870FTL in existing circuit designs?

A: Yes. The CR088870F meets all electrical and mechanical specifications required for direct substitution. Both components share identical resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. Package designation and termination count are equivalent.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The CR088870F length is 3.20mm compared to 3.10mm for the WR12X8870FTL, and the seated height is 0.24mm lower. These differences remain within standard 1206 package tolerances and do not affect PCB footprint compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both WR12X8870FTL and CR088870F are ROHS3 Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level 1 classification. No additional handling or storage procedures are required when substituting between these parts.

Q: What is the temperature coefficient specification and how does it affect performance?

A: Both parts specify ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. This specification defines the maximum resistance change per degree Celsius and ensures predictable performance in temperature-variable environments.

Q: Are there inventory or lead time considerations for these substitute parts?

A: Inventory levels differ between manufacturers. Specific availability should be confirmed with component suppliers, as stock quantities and lead times vary based on current demand and manufacturing schedules.