TMP6431DECT Equivalent & Substitute Parts

Part Overview

The TMP6431DECT is a PTC thermistor rated at 47 kOhms with ±1% resistance tolerance, designed for surface mount applications in the 0402 (1006 Metric) package. This component operates across a temperature range of -40°C to 125°C and is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory. The identification of equivalent substitute parts is necessary to ensure continued component availability and supply chain continuity for designs currently utilizing this thermistor.

Substiute Parts

TMP6431DECT

Texas InstrumentsIn Stock: 2257TMP6431DECT Datasheet

Current PartRFQ

TMP6431DECR

Texas InstrumentsIn Stock: 35306TMP6431DECR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMP6431DECT is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value at 25°C must be 47 kOhms with ±1% tolerance to maintain circuit performance and thermal response characteristics.

Thermal Parameters: Operating temperature range must span -40°C to 125°C to ensure functionality across the full application environment.

Mechanical Parameters: Package designation must be 0402 (1006 Metric) with 2-X1SON (1x0.6) supplier device package to ensure PCB footprint compatibility and automated assembly compatibility.

Compliance Parameters: RoHS3 compliance and MSL Level 1 classification must be maintained to satisfy regulatory requirements and handling specifications.

Parts meeting all these criteria are classified as direct substitutes and can be used interchangeably in circuit designs without modification.

Parameter Comparison

Engineering Selection Recommendations

The TMP6431DECR serves as the direct substitute for the TMP6431DECT. Both components share identical electrical, thermal, and mechanical specifications, ensuring functional equivalence in circuit applications.

The primary distinction between these parts is product status: the TMP6431DECT is designated Last Time Buy with 2,210 units in stock, while the TMP6431DECR maintains Active status with 35,200 units available. For new designs or production requiring long-term component availability, the TMP6431DECR is the appropriate selection. For existing inventory management or short-term requirements, either part satisfies the technical requirements.

Both components maintain ROHS3 compliance and REACH Unaffected status, confirming regulatory alignment for current manufacturing standards. The MSL Level 1 classification indicates unlimited shelf life under standard storage conditions, eliminating moisture-related handling constraints.

Frequently Asked Questions (FAQ)

Q: Can TMP6431DECR be used as a direct replacement for TMP6431DECT in existing designs?

A: Yes. Both components are electrically and mechanically identical with matching 47 kOhms resistance, ±1% tolerance, -40°C to 125°C operating range, and 0402 (1006 Metric) package specifications. No circuit modifications are required.

Q: What is the difference between TMP6431DECT and TMP6431DECR?

A: The components are functionally equivalent. The primary difference is product lifecycle status: TMP6431DECT is Last Time Buy (discontinued), while TMP6431DECR is Active (current production). Inventory levels also differ, with TMP6431DECR offering significantly higher availability.

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

A: No. Both components carry identical RoHS3 compliance, REACH Unaffected status, and MSL Level 1 classification. Regulatory and environmental specifications are equivalent.

Q: Does the 0402 package dimension apply to both parts?

A: Yes. Both the TMP6431DECT and TMP6431DECR use the 0402 (1006 Metric) package with 2-X1SON (1x0.6) supplier device package designation, ensuring identical PCB footprint compatibility and automated assembly compatibility.

Q: What is the significance of Last Time Buy status for TMP6431DECT?

A: Last Time Buy designation indicates the manufacturer has discontinued production. Existing inventory is limited to 2,210 units. For applications requiring ongoing component supply, transition to the Active TMP6431DECR is recommended.

Q: Are there any thermal performance differences between these thermistors?

A: No. Both components operate across the identical -40°C to 125°C temperature range with matching 47 kOhms resistance at 25°C and ±1% tolerance, ensuring equivalent thermal response characteristics.