PDRV421RTJT Equivalent & Substitute Parts

Part Overview

The PDRV421RTJT is a fluxgate current sensor manufactured by Texas Instruments, designed for AC/DC current measurement in a closed-loop bidirectional configuration. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The part is housed in a 20-WFQFN exposed pad surface mount package and operates across the industrial temperature range of -40°C to 125°C.

Substiute Parts

PDRV421RTJT

Texas InstrumentsIn Stock: 767PDRV421RTJT Datasheet

Current PartRFQ

DRV421RTJT

Texas InstrumentsIn Stock: 1267DRV421RTJT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DRV421RTJT qualifies as a direct substitute for the PDRV421RTJT based on the following alignment of critical parameters:

Sensor architecture and measurement capability: Both parts employ identical flux gate closed-loop technology for bidirectional AC/DC current sensing with single-channel configuration.

Electrical specifications: Both maintain identical linearity (±0.3%), supply voltage range (3V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). Output format is ratiometric voltage in both cases.

Package and mechanical compatibility: Both use the 20-WFQFN exposed pad surface mount package with identical pin configuration and footprint.

Compliance and environmental ratings: Both are ROHS3 compliant with MSL rating of 3 (168 Hours), ensuring equivalent handling and storage requirements.

The primary distinction is product status: PDRV421RTJT is obsolete while DRV421RTJT is active, making the latter the recommended selection for new designs and production continuity.

Parameter Comparison

Engineering Selection Recommendations

The DRV421RTJT is the appropriate selection for applications currently using or specifying the PDRV421RTJT. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional equivalence. The DRV421RTJT offers the additional advantage of improved accuracy (±0.02% versus ±0.2%), providing enhanced measurement precision without compromising compatibility.

From a supply chain and compliance perspective, the DRV421RTJT is the only viable long-term option. The PDRV421RTJT's obsolete status creates sourcing constraints and limits availability for production continuity. Both parts satisfy ROHS3 compliance and REACH requirements, ensuring regulatory alignment for current and future manufacturing.

Frequently Asked Questions (FAQ)

Q: Can DRV421RTJT be used as a direct replacement for PDRV421RTJT in existing designs?

A: Yes. Both parts share identical sensor architecture, electrical specifications, package configuration, and operating parameters. Pin-for-pin and functional compatibility is confirmed across all critical parameters.

Q: What is the difference in accuracy between these parts?

A: The PDRV421RTJT specifies ±0.2% accuracy while the DRV421RTJT specifies ±0.02% accuracy. The DRV421RTJT provides tenfold improvement in measurement accuracy. Both maintain identical linearity at ±0.3%.

Q: Are there any packaging or handling differences?

A: Both parts use the 20-WFQFN exposed pad surface mount package with identical MSL rating of 3 (168 Hours). Handling, storage, and reflow requirements are equivalent.

Q: Why is PDRV421RTJT listed as obsolete?

A: Product obsolescence is determined by the manufacturer. The DRV421RTJT represents the active equivalent in Texas Instruments' current product portfolio for this sensor category.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both PDRV421RTJT and DRV421RTJT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.