AS431BKTR-E1 Equivalent & Substitute Parts

Part Overview

The AS431BKTR-E1 is a shunt voltage reference IC manufactured by Diodes Incorporated, designed for adjustable voltage regulation applications. This device provides a fixed 2.5V minimum output with adjustable capability up to 36V, delivering up to 100mA output current with ±1% tolerance. The part is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. For applications requiring active product status and improved availability, equivalent substitute parts with identical electrical and mechanical specifications are available.

Substiute Parts

AS431BKTR-E1

Diodes IncorporatedIn Stock: 90193AS431BKTR-E1 Datasheet

Current PartRFQ

AS431BKTR-G1

Diodes IncorporatedIn Stock: 4229AS431BKTR-G1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AS431BKTR-E1 is determined by strict equivalence across the following critical parameters:

• Reference Type: Shunt voltage reference architecture
• Output Type: Adjustable output voltage capability
• Voltage Range: 2.5V minimum to 36V maximum output
• Current Rating: 100mA output current capacity
• Tolerance: ±1% accuracy specification
• Temperature Coefficient: 20ppm/°C typical performance
• Cathode Current: 1mA minimum operating current
• Operating Temperature Range: -40°C to 125°C
• Package: SOT-23-5 surface mount configuration
• Compliance: ROHS3 and REACH requirements

The AS431BKTR-G1 is a parametric equivalent manufactured by Diodes Incorporated with identical electrical specifications and package configuration. This substitute maintains full compatibility with the AS431BKTR-E1 across all critical design parameters while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The AS431BKTR-E1 carries a "Not For New Designs" status, indicating the manufacturer has transitioned this part to end-of-life. For new circuit designs and applications requiring long-term component availability, the AS431BKTR-G1 is the recommended selection. Both parts maintain identical electrical performance and package specifications, ensuring direct functional compatibility.

The AS431BKTR-G1 offers active product status with improved inventory availability (4122 units in stock versus 90100 units for the legacy part). Both variants comply with ROHS3 and REACH requirements, meeting current environmental and regulatory standards for electronic components.

Selection between these parts should be based on application timeline and supply chain requirements rather than electrical performance, as all critical parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can AS431BKTR-G1 directly replace AS431BKTR-E1 in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, tolerance, temperature coefficient, and SOT-23-5 package configuration. Direct substitution is electrically and mechanically compatible.

Q: What is the difference between AS431BKTR-E1 and AS431BKTR-G1?

A: The primary difference is product status. AS431BKTR-E1 is classified as "Not For New Designs," while AS431BKTR-G1 is active. Electrical performance and packaging are identical. The suffix designation (-E1 versus -G1) indicates manufacturing date code or production batch differentiation by Diodes Incorporated.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected. Compliance status is equivalent across both variants.

Q: What is the significance of the SOT-23-5 package?

A: SOT-23-5 is a surface mount package with five leads, also designated as SC-74A or SOT-753. This package is standard for shunt voltage reference ICs and ensures compatibility with modern PCB assembly processes.

Q: Can this part be used in new product designs?

A: The AS431BKTR-E1 carries a "Not For New Designs" designation. For new applications, use AS431BKTR-G1, which maintains identical specifications with active product status.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is valid when the following parameters match: reference type (shunt), output type (adjustable), voltage range (2.5V to 36V), current rating (100mA), tolerance (±1%), temperature coefficient (20ppm/°C), operating temperature range (-40°C to 125°C), and package configuration (SOT-23-5).