PEMI2STD/RM,115 Equivalent & Substitute Parts

Part Overview

The PEMI2STD/RM,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 100 Ohm resistance per channel with 16 pF total capacitance in a compact SOT-665 surface mount package. The product is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Substiute Parts

PEMI2STD/RM,115

NXP USA Inc.In Stock: 796PEMI2STD/RM,115 Datasheet

Current PartRFQ

IP4256CZ5-W,115

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The IP4256CZ5-W,115 qualifies as a direct substitute for the PEMI2STD/RM,115 based on the following critical parameters:

• Filter Configuration: Both components are 2nd order RC (Pi) low pass EMI filters with 2 channels
• Resistance Value: Both maintain 100 Ohm resistance per channel
• Package: Both use SOT-665 surface mount package with identical physical dimensions (0.063" L × 0.047" W × 0.024" H)
• Operating Temperature: Both support -40°C to 85°C operating range
• ESD Protection: Both include ESD protection
• Compliance: Both are ROHS3 compliant with MSL 1 rating

The primary electrical difference is the capacitance value: the substitute part specifies 19 pF total capacitance versus 16 pF in the original part. This variation remains within acceptable substitution parameters for RC filter networks in data line applications.

Parameter Comparison

Engineering Selection Recommendations

The IP4256CZ5-W,115 is the designated manufacturer-recommended substitute for the obsolete PEMI2STD/RM,115. Selection of this alternative is supported by:

• Active Product Status: The substitute part is in active production, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both components maintain ROHS3 compliance and identical environmental certifications
• Mechanical Compatibility: Identical SOT-665 package dimensions and surface mount configuration enable direct PCB layout compatibility
• Electrical Equivalence: Matching filter topology, channel configuration, and resistance values establish functional equivalence for data line filtering applications
• Thermal Performance: Identical operating temperature range supports equivalent thermal management requirements

Frequently Asked Questions (FAQ)

Q: Can the IP4256CZ5-W,115 be used as a direct replacement on existing PCBs designed for the PEMI2STD/RM,115?

A: Yes. Both components use the SOT-665 package with identical physical dimensions and pin configuration, enabling direct PCB substitution without layout modifications.

Q: What is the significance of the 3 pF capacitance difference between the two parts?

A: The IP4256CZ5-W,115 specifies 19 pF total capacitance compared to 16 pF in the original part. This variation affects the filter cutoff frequency characteristics. The substitute part provides documented attenuation of 20 dB across the 800 MHz to 3 GHz frequency range, suitable for LAN and WAN data line applications.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant with MSL 1 moisture sensitivity rating and identical ESD protection specifications.

Q: What is the availability status of the PEMI2STD/RM,115?

A: The PEMI2STD/RM,115 is obsolete. The IP4256CZ5-W,115 is the active equivalent and is the recommended path for new designs and ongoing production support.

Q: Are the operating temperature ranges identical?

A: Yes. Both components operate across the -40°C to 85°C temperature range, supporting equivalent thermal performance in mobile device and data line applications.