TS431ACX Equivalent & Substitute Parts Reference

Part Overview

The TS431ACX is an active shunt voltage reference integrated circuit manufactured by Taiwan Semiconductor Corporation. This device functions as a programmable shunt regulator with a fixed output voltage of 2.495V, designed for precision voltage reference applications in power management circuits. The TS431ACX operates across an input voltage range up to 36V with a maximum output current of 100mA and maintains a tolerance of ±1% across its operating temperature range of 0°C to 70°C. The component is classified as Active in product status and is RoHS3 compliant. Substitute parts are identified when they maintain identical electrical specifications, mechanical compatibility, and regulatory compliance across all critical parameters.

Substiute Parts

TS431ACX
Taiwan Semiconductor CorporationIn Stock: 3162TS431ACX Datasheet
TS431ACX
Current Part
TS431ACX RFG
Taiwan Semiconductor CorporationIn Stock: 11882TS431ACX RFG Datasheet
TS431ACX RFG
Parametric Equivalent

Key Parameters

Parameter Value Unit
Reference Type Shunt
Output Type Programmable
Voltage - Output (Fixed) 2.495 V
Voltage - Output (Maximum) 36 V
Current - Output 100 mA
Tolerance ±1%
Temperature Coefficient 50 ppm/°C
Current - Cathode 600 µA
Operating Temperature Range 0 to 70 °C
Package / Case TO-236-3, SC-59, SOT-23-3
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TS431ACX is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Reference type (Shunt), output type (Programmable), fixed output voltage (2.495V), maximum output voltage (36V), output current capacity (100mA), voltage tolerance (±1%), temperature coefficient (50ppm/°C), and cathode current (600µA).

Mechanical Compatibility: Package designation (TO-236-3, SC-59, SOT-23-3), mounting type (Surface Mount), and supplier device package (SOT-23).

Regulatory Compliance: RoHS3 compliance and REACH status.

Product Status: Active status ensures ongoing availability and support.

Substitute parts must match all parameters listed above without deviation. Parts that differ in any electrical specification, package type, or compliance certification are not considered equivalent.

Parameter Comparison

Parameter TS431ACX TS431ACX RFG Match
Manufacturer Taiwan Semiconductor Corporation Taiwan Semiconductor Corporation
Category Power Management (PMIC) Power Management (PMIC)
Reference Type Shunt Shunt
Output Type Programmable Programmable
Voltage - Output (Fixed) 2.495V 2.495V
Voltage - Output (Maximum) 36V 36V
Current - Output 100mA 100mA
Tolerance ±1% ±1%
Temperature Coefficient 50ppm/°C 50ppm/°C
Current - Cathode 600µA 600µA
Operating Temperature 0°C to 70°C 0°C to 70°C
Package / Case TO-236-3, SC-59, SOT-23-3 TO-236-3, SC-59, SOT-23-3
Mounting Type Surface Mount Surface Mount
Supplier Device Package SOT-23 SOT-23
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
Product Status Active Active

Engineering Selection Recommendations

The TS431ACX RFG is a parametric equivalent substitute for the TS431ACX. Both components are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical specifications across all critical parameters including reference voltage, output current, tolerance, and temperature coefficient. Both devices are classified as Active products, ensuring continued availability and manufacturing support.

Regulatory compliance is equivalent for both parts: both are RoHS3 compliant and REACH unaffected. Mechanical compatibility is confirmed through identical package designations (TO-236-3, SC-59, SOT-23-3) and surface mount mounting type.

Selection between TS431ACX and TS431ACX RFG may be based on inventory availability, lead time, or supplier preference, as no technical differentiation exists between the two part numbers.

Frequently Asked Questions (FAQ)

Q: What is the difference between TS431ACX and TS431ACX RFG?

A: Both part numbers are parametric equivalents manufactured by Taiwan Semiconductor Corporation. They share identical electrical specifications, package types, and regulatory compliance. The suffix "RFG" indicates a specific manufacturing or distribution variant but does not alter functional or electrical characteristics.

Q: Can TS431ACX RFG be used as a direct replacement for TS431ACX in existing designs?

A: Yes. The TS431ACX RFG is a direct substitute. Both components have identical output voltage (2.495V), output current (100mA), tolerance (±1%), temperature coefficient (50ppm/°C), and package configuration (SOT-23). No circuit modifications are required.

Q: Are there any differences in package or mounting between these parts?

A: No. Both TS431ACX and TS431ACX RFG use the same package designation (TO-236-3, SC-59, SOT-23-3) and surface mount mounting type. They are mechanically interchangeable.

Q: What is the operating temperature range for these components?

A: Both the TS431ACX and TS431ACX RFG operate across a temperature range of 0°C to 70°C with a temperature coefficient of 50ppm/°C.

Q: Are both parts RoHS3 compliant?

A: Yes. Both TS431ACX and TS431ACX RFG are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the maximum input voltage for these shunt voltage reference ICs?

A: The maximum input voltage is 36V for both the TS431ACX and TS431ACX RFG.

Q: What is the cathode current specification?

A: The cathode current for both parts is 600µA.

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