TS431BCX Equivalent & Substitute Parts

Part Overview

The TS431BCX is a shunt voltage reference IC manufactured by Taiwan Semiconductor Corporation, classified as a Power Management (PMIC) component. This device functions as a programmable 2.495V shunt voltage regulator with a maximum voltage rating of 36V, designed for precision voltage reference applications requiring ±0.5% tolerance. The component is currently in active product status with 4350 units in stock. Alternative equivalent parts are necessary to address supply chain flexibility, packaging preferences, and extended operating temperature requirements in specific application scenarios.

Substiute Parts

TS431BCX

Taiwan Semiconductor CorporationIn Stock: 4377TS431BCX Datasheet

Current PartRFQ

TS431BCX RFG

Taiwan Semiconductor CorporationIn Stock: 50165TS431BCX RFG Datasheet

Parametric EquivalentRFQ

TL432BSA-7

Diodes IncorporatedIn Stock: 6256TL432BSA-7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS431BCX is determined by the following critical parameters that must align across all candidate parts:

Primary Substitution Criteria:

• Reference Type: Shunt
• Voltage - Output (Min/Fixed): 2.495V
• Voltage - Output (Max): 36V
• Current - Output: 100 mA
• Tolerance: ±0.5%
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount

Parametric Equivalent Classification: TS431BCX RFG meets all primary substitution criteria. This variant is manufactured by Taiwan Semiconductor Corporation and maintains identical electrical specifications including programmable output type, 50ppm/°C temperature coefficient, and 600 µA cathode current. The difference lies in packaging format (Cut Tape & Digi-Reel) and moisture sensitivity level (MSL 3), with significantly higher inventory availability (50104 units).

Similar Manufacturer Classification: TL432BSA-7 manufactured by Diodes Incorporated qualifies as a similar substitute with the following alignment: shunt reference type, 2.495V minimum output voltage, 36V maximum voltage, 100 mA output current, ±0.5% tolerance, and identical package specifications. Differences include adjustable output type (versus programmable), 700 µA cathode current (versus 600 µA), extended operating temperature range (-40°C ~ 125°C versus 0°C ~ 70°C), and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

TS431BCX RFG Selection Rationale: TS431BCX RFG is the primary parametric equivalent for direct substitution. Both components are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications, temperature coefficient, and operating temperature range. The variant differs only in packaging format and moisture sensitivity level. Selection of TS431BCX RFG is appropriate when supply chain requirements favor Cut Tape or Digi-Reel packaging formats, or when higher inventory availability is a procurement advantage. Both components maintain ROHS3 compliance and REACH unaffected status.

TL432BSA-7 Selection Rationale: TL432BSA-7 manufactured by Diodes Incorporated qualifies as a similar substitute when extended operating temperature range (-40°C ~ 125°C) is required beyond the standard 0°C ~ 70°C specification of the TS431BCX. This component maintains all critical electrical parameters including voltage ratings, current output, and tolerance specifications. The adjustable output type provides functional equivalence to the programmable type in most applications. The 700 µA cathode current specification (versus 600 µA) represents a minor operational difference within typical circuit design margins. TL432BSA-7 carries ROHS3 compliance and MSL 1 rating, indicating superior moisture handling characteristics. Selection is appropriate for applications requiring extended temperature operation or enhanced moisture resistance.

Frequently Asked Questions (FAQ)

Q: Can TS431BCX RFG be used as a direct replacement for TS431BCX? A: Yes. TS431BCX RFG is a parametric equivalent with identical electrical specifications, output voltage, current ratings, tolerance, and temperature coefficient. The components differ only in packaging format and moisture sensitivity level. Direct substitution is valid for all applications within the specified operating temperature range of 0°C ~ 70°C.

Q: What is the primary difference between TS431BCX and TL432BSA-7? A: The primary difference is the operating temperature range. TS431BCX operates from 0°C ~ 70°C, while TL432BSA-7 operates from -40°C ~ 125°C. Additionally, TS431BCX features programmable output type while TL432BSA-7 features adjustable output type. Both maintain identical voltage ratings (2.495V to 36V), current output (100 mA), and tolerance (±0.5%).

Q: Is TL432BSA-7 suitable for applications requiring the full 0°C ~ 70°C operating range? A: Yes. TL432BSA-7 operates across -40°C ~ 125°C, which encompasses the 0°C ~ 70°C range. The component is suitable for applications within this narrower temperature band and provides additional operational margin for extended temperature environments.

Q: Are all three parts compatible with the same PCB layout? A: Yes. All three parts (TS431BCX, TS431BCX RFG, and TL432BSA-7) use identical package specifications: TO-236-3, SC-59, SOT-23-3. Surface mount footprints are compatible across all variants.

Q: What is the significance of the cathode current difference between TS431BCX (600 µA) and TL432BSA-7 (700 µA)? A: The 100 µA difference in cathode current represents a minor operational variation. Both specifications fall within typical circuit design tolerances for shunt voltage reference applications. This difference does not preclude substitution in standard applications.

Q: Do all substitute parts maintain the same compliance certifications? A: Yes. TS431BCX, TS431BCX RFG, and TL432BSA-7 all carry ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels differ (TS431BCX and TS431BCX RFG: MSL 3; TL432BSA-7: MSL 1), with TL432BSA-7 offering superior moisture handling characteristics.

Q: Which substitute part offers the highest inventory availability? A: TS431BCX RFG offers the highest inventory with 50104 units in stock, compared to 4350 units for TS431BCX and 6200 units for TL432BSA-7.