SE97TL,128 Equivalent & Substitute Parts

Part Overview

The SE97TL,128 is a temperature monitoring system sensor designed for DIMM DDR memory applications, manufactured by NXP Semiconductors. This component features an internal temperature sensor with I2C/SMBus output interface, operating across -40°C to 125°C with ±3°C maximum accuracy. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and electrical compatibility for ongoing system support and new designs.

Substiute Parts

SE97TL,128

NXP SemiconductorsIn Stock: 789SE97TL,128 Datasheet

Current PartRFQ

SE97BTP,547

NXP SemiconductorsIn Stock: 4060SE97BTP,547 Datasheet

MFR RecommendedRFQ

AT30TSE002A-MAH-T

Microchip TechnologyIn Stock: 786AT30TSE002A-MAH-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SE97TL,128 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Output interface type: I2C/SMBus protocol
• Sensing temperature range: Minimum -40°C to 125°C coverage
• Supply voltage compatibility: 3V to 3.6V operation
• Sensor topology: Internal temperature monitoring capability
• Package form factor: Surface mount, 8-pin configuration with exposed pad
• Regulatory compliance: ROHS3 and REACH status alignment

Identified Substitutes:

1. SE97BTP,547 (NXP Semiconductors) – Same manufacturer base product (SE97 series), maintains identical functional specifications, electrical parameters, and I2C/SMBus interface. Primary difference is package designation (8-HWSON vs. 8-HXSON) and product status transition from obsolete to active.

2. AT30TSE002A-MAH-T (Microchip Technology) – Cross-manufacturer alternative with equivalent I2C/SMBus output, overlapping temperature sensing range (-20°C to 125°C exceeds lower bound requirement), compatible supply voltage (2.7V to 3.6V encompasses SE97TL,128 range), and identical 8-pin surface mount package footprint.

Parameter Comparison

Engineering Selection Recommendations

SE97BTP,547 (NXP Semiconductors): This substitute is the primary recommended alternative. As an active product within the same SE97 base series, it provides direct functional equivalence with identical electrical specifications, temperature range, accuracy, and I2C/SMBus interface. The package designation change (8-HWSON to 8-HXSON) represents a minor supplier packaging variation with equivalent footprint and pin configuration. ROHS3 compliance and REACH unaffected status maintain regulatory alignment. The increased MSL rating (3 vs. 1) reflects standard industry practice for active production components and does not impact electrical performance.

AT30TSE002A-MAH-T (Microchip Technology): This cross-manufacturer substitute provides functional compatibility through equivalent I2C/SMBus interface and overlapping operational parameters. The extended lower temperature bound (-20°C vs. -40°C) and improved accuracy specification (±1°C at 75°C–95°C) offer enhanced performance in moderate temperature ranges. Supply voltage compatibility (2.7V–3.6V) encompasses the SE97TL,128 requirement. The absence of dedicated fan output functionality may require design consideration if fan control is a critical system requirement. ROHS3 compliance and REACH unaffected status maintain regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SE97BTP,547 be used as a direct replacement for SE97TL,128 in existing designs?

A: Yes. SE97BTP,547 maintains identical electrical specifications, temperature range, accuracy, and I2C/SMBus protocol. The package designation change represents a supplier packaging variation with equivalent footprint. No design modifications are required.

Q: What is the significance of the package designation change from 8-HXSON to 8-HWSON?

A: Both designations refer to 8-pin surface mount packages with 2x3mm footprint and exposed pad configuration. The letter variation indicates supplier packaging format differences (tape & reel vs. alternative packaging) but maintains identical electrical and mechanical compatibility.

Q: Is AT30TSE002A-MAH-T suitable for applications requiring -40°C operation?

A: No. AT30TSE002A-MAH-T operates from -20°C minimum, which does not meet the -40°C lower bound requirement of the SE97TL,128. This substitute is suitable only for applications with operating temperature ranges of -20°C or higher.

Q: Does the improved accuracy of AT30TSE002A-MAH-T (±1°C) provide a performance advantage?

A: AT30TSE002A-MAH-T specifies ±1°C accuracy within the 75°C–95°C range, with ±3°C accuracy across the full -20°C to 125°C range. The SE97TL,128 maintains ±3°C across its entire -40°C to 125°C range. Accuracy improvement is limited to the moderate temperature band and does not apply to extreme temperature operation.

Q: What is the impact of MSL rating differences between the substitutes?

A: MSL (Moisture Sensitivity Level) rating affects component handling and storage requirements. SE97TL,128 (MSL 1) has unlimited shelf life. SE97BTP,547 and AT30TSE002A-MAH-T (MSL 3) require storage below 30°C and 60% relative humidity, with 168-hour floor life after moisture exposure. This affects procurement and inventory management but does not impact electrical performance.

Q: Can AT30TSE002A-MAH-T replace SE97TL,128 if fan control output is not required?

A: Yes, provided the application does not require -40°C operation. AT30TSE002A-MAH-T provides I2C/SMBus output with alarm functionality and operates within the -20°C to 125°C range. The absence of dedicated fan output is not a limitation if fan control is not a system requirement.

Q: Are all three parts ROHS3 and REACH compliant?

A: Yes. SE97TL,128, SE97BTP,547, and AT30TSE002A-MAH-T are all ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for EU and international markets.