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

Part Overview

The PEMI2STD/LR,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 a 65-ohm resistance and 21pF total capacitance configuration in a compact SOT-665 surface mount package. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

PEMI2STD/LR,115

NXP USA Inc.In Stock: 1068PEMI2STD/LR,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/LR,115 is determined by the following critical parameters:

• Package Compatibility: Both parts must use SOT-665 surface mount packaging with identical physical dimensions (1.60mm × 1.20mm × 0.60mm)
• Filter Architecture: 2nd order RC (Pi) topology with 2-channel configuration
• Environmental Compliance: ROHS3 compliance and MSL 1 rating required
• Operating Temperature: -40°C to +85°C range maintained
• ESD Protection: Integrated ESD protection required

The IP4256CZ5-W,115 meets these substitution criteria while maintaining functional equivalence for EMI filtering applications, despite variations in resistance and capacitance values that remain within acceptable tolerance ranges for the filter topology.

Parameter Comparison

Engineering Selection Recommendations

The IP4256CZ5-W,115 is the designated substitute for the obsolete PEMI2STD/LR,115. Selection is based on the following engineering criteria:

• Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL 1 ratings, satisfying environmental and reliability requirements
• Package Equivalence: Identical SOT-665 packaging and physical dimensions enable direct board-level substitution without layout modifications
• Functional Architecture: Matching 2nd order RC (Pi) filter topology with 2-channel configuration preserves circuit performance characteristics
• Temperature Rating: Identical operating temperature range (-40°C to +85°C) maintains thermal performance specifications
• ESD Protection: Integrated ESD protection in both parts ensures data line integrity

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts share identical SOT-665 packaging, physical dimensions, filter topology, channel configuration, operating temperature range, and compliance certifications. The substitute part is pin-compatible and requires no circuit modifications.

Q: What are the differences between the PEMI2STD/LR,115 and IP4256CZ5-W,115?

A: The primary differences are manufacturer (NXP vs. Nexperia), product status (obsolete vs. active), and component values. The PEMI2STD/LR,115 specifies 65-ohm resistance and 21pF capacitance, while the IP4256CZ5-W,115 specifies 100-ohm resistance and 19pF capacitance. Both configurations maintain 2nd order RC (Pi) filter functionality.

Q: Are there packaging or handling differences between these parts?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating identical handling and storage requirements. The substitute part is available in Cut Tape (CT) and Digi-Reel packaging options.

Q: Does the substitute part meet the same compliance standards?

A: Yes. The IP4256CZ5-W,115 maintains ROHS3 compliance, REACH unaffected status, and identical EAR99 ECCN classification as the original part.

Q: What applications are supported by the substitute part?

A: The IP4256CZ5-W,115 is specified for LAN and WAN applications, providing broader application coverage than the original part's mobile device data line specification.