SN65220DBVRG4 Equivalent & Substitute Parts

Part Overview

The SN65220DBVRG4 is a Transient Voltage Suppressor (TVS) device designed for circuit protection in USB applications. This mixed-technology component operates at a 7V clamping voltage and is housed in a SOT-23-6 surface mount package. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

SN65220DBVRG4

Texas InstrumentsIn Stock: 4140SN65220DBVRG4 Datasheet

Current PartRFQ

SN65220DBVR

Texas InstrumentsIn Stock: 354302SN65220DBVR Datasheet

MFR RecommendedRFQ

STF202-22T1G

onsemiIn Stock: 94453STF202-22T1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN65220DBVRG4 is determined by the following critical parameters:

• Voltage - Clamping: 7V (exact match required)
• Package / Case: SOT-23-6 (mechanical and electrical compatibility)
• Technology: Mixed Technology (functional equivalence)
• Number of Circuits: 1 (circuit configuration match)
• Applications: USB (intended use case)
• Mounting Type: Surface Mount (assembly compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The primary substitute is SN65220DBVR from Texas Instruments, which maintains identical electrical specifications and packaging while offering active product status and significantly higher inventory availability. This part represents a direct functional equivalent with no design modifications required.

Parameter Comparison

Engineering Selection Recommendations

SN65220DBVR is the recommended substitute for SN65220DBVRG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The SN65220DBVR maintains active product status with substantially higher inventory availability (354,226 units in stock versus 4,100 units for the obsolete variant). Both parts carry ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility. No circuit design modifications are required for this substitution.

STF202-22T1G is listed as a reference part but does not qualify as a direct substitute. While both components serve USB applications and share ROHS3 compliance, the STF202-22T1G is an RC (Pi) EMI filter with fundamentally different electrical function, package configuration (SC-74, SOT-457), and circuit topology (2 channels versus 1 circuit). This part addresses different circuit protection requirements and cannot replace the TVS functionality of the SN65220DBVRG4.

Frequently Asked Questions (FAQ)

Q: Can SN65220DBVR be used as a direct replacement for SN65220DBVRG4?

A: Yes. Both parts are identical in electrical specifications (7V clamping voltage, mixed technology, single circuit), package configuration (SOT-23-6), and regulatory compliance (ROHS3, MSL 1). The SN65220DBVR is the active production equivalent with no design changes required.

Q: Why is the SN65220DBVRG4 listed as obsolete?

A: Product obsolescence indicates the part has been discontinued by the manufacturer. The SN65220DBVR serves as the active replacement in the product line.

Q: What is the difference between SN65220DBVRG4 and SN65220DBVR packaging?

A: The SN65220DBVRG4 is supplied in standard packaging, while the SN65220DBVR is available in Cut Tape (CT) and Digi-Reel® formats. Both use the SOT-23-6 package case. The packaging format does not affect electrical performance or circuit compatibility.

Q: Is STF202-22T1G a suitable alternative?

A: No. The STF202-22T1G is an RC (Pi) EMI filter, not a transient voltage suppressor. It performs signal filtering rather than transient protection and cannot fulfill the TVS function required in the circuit.

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

A: No. Both SN65220DBVRG4 and SN65220DBVR carry identical ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.