DS2148TN Equivalent & Substitute Parts

Part Overview

The DS2148TN is a Telecom Interface IC functioning as a Line Interface Unit (LIU) in 44-TQFP surface mount packaging. This component is classified as obsolete, indicating discontinued manufacturing and limited availability. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this interface standard.

Substiute Parts

DS2148TN

Analog Devices Inc./Maxim IntegratedIn Stock: 21195DS2148TN Datasheet

Current PartRFQ

DS2148TN+

Analog Devices Inc./Maxim IntegratedIn Stock: 860DS2148TN+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS2148TN is determined by strict equivalence across the following critical parameters:

• Functional Equivalence: Line Interface Unit (LIU) interface classification
• Electrical Specifications: Supply voltage range 4.75V ~ 5.25V and supply current 95mA
• Thermal Range: Operating temperature -40°C ~ 85°C
• Package Compatibility: 44-TQFP (10x10) surface mount configuration
• Circuit Count: Single circuit (1)
• Mechanical Compatibility: Identical mounting type and footprint

The DS2148TN+ qualifies as a direct substitute based on complete alignment with all specified electrical, thermal, and mechanical parameters. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The DS2148TN+ is the direct substitute for the DS2148TN based on complete electrical and mechanical equivalence. Selection between these parts should be guided by the following factors:

For New Designs or Production Continuation: The DS2148TN+ is the appropriate choice. It maintains active product status, ensuring ongoing manufacturer support and availability. The component carries ROHS3 compliance, meeting current environmental and regulatory standards for electronic components.

For Legacy System Maintenance: The DS2148TN remains functionally equivalent where existing inventory exists. However, the obsolete status indicates limited future availability. Transition planning to DS2148TN+ is recommended to prevent supply chain disruption.

Compliance Considerations: Both parts share identical REACH and ECCN classifications. The DS2148TN+ provides enhanced compliance posture through ROHS3 certification, which may be required for applications subject to current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can DS2148TN+ be used as a direct replacement for DS2148TN in existing designs?

A: Yes. The DS2148TN+ is electrically and mechanically equivalent. Both components operate at identical supply voltage (4.75V ~ 5.25V), current (95mA), temperature range (-40°C ~ 85°C), and share the same 44-TQFP (10x10) package footprint. No circuit modifications are required.

Q: What is the primary difference between DS2148TN and DS2148TN+?

A: The DS2148TN is obsolete with limited inventory availability. The DS2148TN+ is an active product with current manufacturing support. Additionally, DS2148TN+ carries ROHS3 compliance certification, while DS2148TN is RoHS non-compliant.

Q: Are there any packaging differences between these parts?

A: Both components use identical 44-TQFP (10x10) surface mount packaging. The DS2148TN+ is supplied in Tray packaging, while the DS2148TN packaging specification is not detailed. Both maintain MSL 3 (168 Hours) moisture sensitivity classification.

Q: Which part should be selected for new production?

A: The DS2148TN+ should be selected for new production. Active product status ensures supply chain continuity and manufacturer technical support. ROHS3 compliance aligns with current regulatory requirements.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate within identical electrical and thermal specifications. Supply voltage, current consumption, and operating temperature ranges are equivalent.