REF3320AIDCKTG4 Equivalent & Substitute Parts

Part Overview

The REF3320AIDCKTG4 is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 2.048V output with ±0.15% tolerance. This component operates as a precision voltage reference in power management applications, delivering stable reference voltages for analog and mixed-signal circuits. The part is currently classified as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

REF3320AIDCKTG4

Texas InstrumentsIn Stock: 1085REF3320AIDCKTG4 Datasheet

Current PartRFQ

REF3320AIDCKR

Texas InstrumentsIn Stock: 21427REF3320AIDCKR Datasheet

Parametric EquivalentRFQ

REF3320AIDCKT

Texas InstrumentsIn Stock: 1518REF3320AIDCKT Datasheet

Parametric EquivalentRFQ

MAX6034BEXR21+T

Analog Devices Inc./Maxim IntegratedIn Stock: 919MAX6034BEXR21+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the REF3320AIDCKTG4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Fixed output voltage of 2.048V
• SC-70 / SOT-323 package compatibility
• Surface mount mounting type
• Operating temperature range of -40°C to 125°C (or compatible subset)
• ROHS3 compliance

Parametric Equivalents (REF3320AIDCKR, REF3320AIDCKT) maintain identical electrical specifications across all key parameters, differing only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). These parts are direct functional replacements with active product status.

Manufacturer Recommended Substitute (MAX6034BEXR21+T) provides the same fixed 2.048V output and SC-70 package but operates with relaxed tolerance (±0.4% versus ±0.15%), higher temperature coefficient (75ppm/°C versus 30ppm/°C), and reduced output current capability (1 mA versus 5 mA). This part is suitable only when application requirements permit these parameter variations.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): REF3320AIDCKR and REF3320AIDCKT are parametric equivalents with active product status. Both maintain identical electrical performance and are suitable for direct substitution. Selection between these two depends on packaging requirements: REF3320AIDCKR is supplied in Cut Tape & Digi-Reel format, while REF3320AIDCKT is supplied in Tape & Reel format. Both are ROHS3 compliant with MSL rating of 2.

For Alternative Selection: MAX6034BEXR21+T is an active alternative from Analog Devices Inc./Maxim Integrated. This part is suitable only when application specifications permit the following deviations: reduced output current (1 mA versus 5 mA), relaxed tolerance (±0.4% versus ±0.15%), higher temperature coefficient (75ppm/°C versus 30ppm/°C), and reduced operating temperature range (-40°C to 85°C versus -40°C to 125°C). The MAX6034BEXR21+T offers improved MSL rating (1 versus 2) and lower supply current (115µA versus 8.5µA).

Frequently Asked Questions (FAQ)

Q: Can REF3320AIDCKR and REF3320AIDCKT be used interchangeably with REF3320AIDCKTG4?

A: Yes. Both parts are parametric equivalents with identical electrical specifications. The difference is packaging format only. REF3320AIDCKR uses Cut Tape & Digi-Reel packaging, while REF3320AIDCKT uses Tape & Reel packaging. Both are active products suitable for direct replacement.

Q: What are the key differences between the REF3320 series and MAX6034BEXR21+T?

A: The MAX6034BEXR21+T differs in four critical areas: output current capability (1 mA versus 5 mA), voltage tolerance (±0.4% versus ±0.15%), temperature coefficient (75ppm/°C versus 30ppm/°C), and maximum operating temperature (85°C versus 125°C). Use MAX6034BEXR21+T only if your application can accommodate these relaxed specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. REF3320AIDCKR, REF3320AIDCKT, and MAX6034BEXR21+T are all ROHS3 compliant, matching the compliance status of the original REF3320AIDCKTG4.

Q: What is the significance of the MSL rating difference?

A: REF3320AIDCKR and REF3320AIDCKT have MSL rating 2 (1 Year), while MAX6034BEXR21+T has MSL rating 1 (Unlimited). MSL rating 1 indicates superior moisture resistance and longer shelf life without baking requirements.

Q: Which substitute part should I select for new designs?

A: For new designs requiring the full 5 mA output current and ±0.15% tolerance, select either REF3320AIDCKR or REF3320AIDCKT based on your packaging preference. If your application can operate with reduced output current and relaxed tolerance specifications, MAX6034BEXR21+T is an active alternative with improved moisture resistance.