ZL49031DCE1 Equivalent & Substitute Parts

Part Overview

The ZL49031DCE1 is a Telecom Interface IC functioning as a DTMF Receiver in an 18-SOIC surface mount package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations. The substitute part MT8870DS1 maintains functional and electrical compatibility while offering active product status and current availability.

Substiute Parts

ZL49031DCE1

Microchip TechnologyIn Stock: 1102ZL49031DCE1 Datasheet

Current PartRFQ

MT8870DS1

Microchip TechnologyIn Stock: 2042MT8870DS1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MT8870DS1 qualifies as a direct substitute for the ZL49031DCE1 based on the following alignment of critical parameters:

• Functional Equivalence: Both components perform DTMF Receiver functionality with identical circuit count (1 circuit)
• Electrical Compatibility: Identical supply voltage range (4.75V ~ 5.25V) and supply current (3mA)
• Thermal Compatibility: Matching operating temperature range (-40°C ~ 85°C)
• Package Compatibility: Identical 18-SOIC surface mount package with matching physical dimensions (0.295", 7.50mm Width)
• Compliance Alignment: Both maintain ROHS3 compliance and identical MSL rating (3, 168 Hours)

Parameter Comparison

Engineering Selection Recommendations

The MT8870DS1 is the appropriate selection for applications currently using or requiring ZL49031DCE1 functionality. The substitute part maintains full electrical and mechanical compatibility across all specified parameters. The transition from obsolete to active product status ensures continued supply chain availability and manufacturing support. Both components carry identical compliance certifications (ROHS3, MSL 3), confirming suitability for equivalent environmental and reliability requirements.

Frequently Asked Questions (FAQ)

Q: Can MT8870DS1 be used as a direct replacement for ZL49031DCE1 in existing designs?

A: Yes. The MT8870DS1 matches all critical electrical parameters (supply voltage, current, operating temperature), functional specifications (DTMF Receiver, single circuit), and physical requirements (18-SOIC package, surface mount). No circuit modifications are required.

Q: Are there any differences in package dimensions between these parts?

A: No. Both components use the identical 18-SOIC package with 0.295" width and 7.50mm physical dimensions, ensuring direct PCB compatibility.

Q: What is the primary advantage of selecting MT8870DS1 over ZL49031DCE1?

A: MT8870DS1 carries active product status, ensuring ongoing availability, manufacturing support, and supply chain continuity. ZL49031DCE1 is classified as obsolete.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both components are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL 3, 168 Hours) ratings.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate within the identical temperature range (-40°C ~ 85°C) and maintain the same supply voltage (4.75V ~ 5.25V) and current (3mA) specifications.