TMP6331QDYATQ1 Equivalent & Substitute Parts

Part Overview

The TMP6331QDYATQ1 is an automotive-grade PTC thermistor with 100 kOhms nominal resistance and ±1% tolerance, packaged in SC-79/SOD-523 surface mount configuration. This component is qualified to AEC-Q100 automotive standards and operates across the temperature range of -40°C to 125°C. The part is currently in Last Time Buy status, indicating discontinued production with limited inventory availability. Identification of equivalent substitute parts is necessary to ensure design continuity and procurement reliability for ongoing production requirements.

Substiute Parts

TMP6331QDYATQ1

Texas InstrumentsIn Stock: 1878TMP6331QDYATQ1 Datasheet

Current PartRFQ

TMP6331QDYARQ1

Texas InstrumentsIn Stock: 68136TMP6331QDYARQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMP6331QDYATQ1 is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (100 kOhms) and tolerance (±1%) must be identical. Operating temperature range (-40°C to 125°C) must be maintained or exceeded.

Mechanical Parameters: Package designation (SC-79, SOD-523) and mounting type (Surface Mount) must be identical to ensure PCB compatibility without layout modifications.

Compliance & Certification: Automotive grade classification and AEC-Q100 qualification are mandatory for automotive applications. RoHS3 compliance and MSL rating (3, 168 Hours) must be maintained.

Manufacturer Consistency: All substitute parts are sourced from Texas Instruments, the original manufacturer, ensuring design validation and supply chain reliability.

The TMP6331QDYARQ1 meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

The TMP6331QDYARQ1 is the direct equivalent substitute for the TMP6331QDYATQ1. Both parts share identical electrical, mechanical, and compliance specifications. The primary distinction is product status: the main part (TMP6331QDYATQ1) is in Last Time Buy status with limited inventory (1800 Pcs), while the substitute (TMP6331QDYARQ1) maintains Active status with significantly higher inventory availability (68050 Pcs).

For new designs or ongoing production requiring long-term supply assurance, the TMP6331QDYARQ1 is the appropriate selection. Both parts maintain AEC-Q100 automotive qualification, ROHS3 compliance, and identical electrical performance characteristics. No design modifications, PCB layout changes, or thermal management adjustments are required when transitioning between these parts.

Frequently Asked Questions (FAQ)

Q: Can the TMP6331QDYARQ1 be used as a direct replacement for the TMP6331QDYATQ1 without PCB modifications?

A: Yes. Both parts are identical in package designation (SC-79, SOD-523), mounting type (Surface Mount), and pin configuration (SOT-5X3). No PCB layout or footprint changes are required.

Q: Are the electrical characteristics identical between these two parts?

A: Yes. Both parts have 100 kOhms resistance at 25°C with ±1% tolerance and operate across the identical temperature range of -40°C to 125°C.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the TMP6331QDYATQ1 and TMP6331QDYARQ1 are automotive-grade components qualified to AEC-Q100 standards.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The TMP6331QDYATQ1 is in Last Time Buy status with limited inventory, while the TMP6331QDYARQ1 is in Active status with higher availability. All technical specifications and performance characteristics are identical.

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

A: No. Both parts are ROHS3 compliant, REACH Unaffected, and share identical ECCN (EAR99) and HTSUS (8533.40.8070) classifications.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both parts have MSL 3 with a 168-hour floor life rating. Standard moisture control procedures during storage and handling apply.