PEMI2STD/LM,115 RC (Pi) EMI Filter Equivalent & Substitute Parts

Part Overview

The PEMI2STD/LM,115 is a 2nd order RC (Pi) EMI filter manufactured by NXP USA Inc., designed for data line filtering in mobile device applications. This component features 65 ohms resistance and 16 pF total capacitance in a compact SOT-665 surface mount package. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

PEMI2STD/LM,115

NXP USA Inc.In Stock: 993PEMI2STD/LM,115 Datasheet

Current PartRFQ

IP4256CZ5-W,115

Nexperia USA Inc.In Stock: 1008IP4256CZ5-W,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PEMI2STD/LM,115 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Filter topology: 2nd order RC (Pi) low pass configuration
• Channel count: 2 channels
• Package type: SOT-665 surface mount
• Physical dimensions: 1.60 mm × 1.20 mm × 0.60 mm
• ESD protection capability: Required
• Operating temperature range: -40°C to 85°C minimum
• RoHS3 compliance and MSL 1 rating

Allowable Parameter Variations:

• Resistance value: 65 Ohms (main part) to 100 Ohms (substitute)
• Total capacitance: 16 pF (main part) to 19 pF (substitute)
• Attenuation characteristics: May differ based on RC component values
• Application scope: May expand from mobile data lines to broader LAN/WAN use

The IP4256CZ5-W,115 substitute meets all mandatory criteria while operating with higher impedance and capacitance values, which remain within acceptable tolerance for EMI filtering applications in the specified frequency and application domains.

Parameter Comparison

Engineering Selection Recommendations

The IP4256CZ5-W,115 is the designated manufacturer-recommended substitute for the obsolete PEMI2STD/LM,115. Both components share identical package geometry, thermal operating range, and compliance certifications (ROHS3, MSL 1, REACH Unaffected, EAR99 classification).

The substitute maintains full mechanical and electrical compatibility within the SOT-665 footprint. The increased resistance (100 Ohms vs. 65 Ohms) and capacitance (19 pF vs. 16 pF) values result in modified filter characteristics suitable for expanded application scope (LAN/WAN protocols) while remaining compatible with the original mobile device data line filtering function.

The IP4256CZ5-W,115 is currently in active production status with documented inventory availability, ensuring long-term supply chain continuity compared to the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the IP4256CZ5-W,115 be used as a direct drop-in replacement for the PEMI2STD/LM,115?

A: Yes. Both components use identical SOT-665 packaging with matching footprint dimensions (1.60 mm × 1.20 mm × 0.60 mm). PCB layout and assembly processes require no modification.

Q: How do the resistance and capacitance differences affect filter performance?

A: The substitute's higher resistance (100 Ohms) and capacitance (19 pF) shift the filter cutoff frequency lower compared to the main part. The substitute provides 20 dB attenuation across the 800 MHz to 3 GHz frequency band, suitable for both original mobile applications and expanded LAN/WAN data line protection.

Q: Are there any thermal or environmental compatibility concerns?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements.

Q: What is the compliance and regulatory status of the substitute?

A: The IP4256CZ5-W,115 maintains full ROHS3 compliance, REACH Unaffected status, and EAR99 export classification, matching the regulatory profile of the obsolete main part.

Q: Is the substitute available in the same packaging format?

A: Yes. The IP4256CZ5-W,115 is supplied in Cut Tape (CT) and Digi-Reel® packaging options, standard for high-volume surface mount assembly operations.