ZR431LF01-7 Equivalent & Substitute Parts

Part Overview

The ZR431LF01-7 is a shunt voltage reference IC manufactured by Diodes Incorporated, designed for precision voltage regulation applications. This adjustable reference provides a fixed output of 1.24V with a maximum output capability of 10V and supports output currents up to 25mA. The component is housed in a SOT-23-3 surface mount package.

The ZR431LF01-7 is classified as obsolete. Identifying suitable substitute parts is essential for maintaining design continuity, ensuring supply chain reliability, and supporting long-term product availability for applications currently utilizing this component.

Substiute Parts

ZR431LF01-7

Diodes IncorporatedIn Stock: 651ZR431LF01-7 Datasheet

Current PartRFQ

ZR431LF01TA

Diodes IncorporatedIn Stock: 17757ZR431LF01TA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ZR431LF01-7 is determined by strict equivalence across the following critical parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 1.24V
• Voltage - Output (Max): 10V
• Current - Output: 25mA
• Tolerance: ±1%
• Temperature Coefficient: 50ppm/°C
• Current - Cathode: 100µA
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: SOT-23-3
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The ZR431LF01TA meets all substitution criteria. This part shares identical electrical specifications and thermal characteristics while maintaining the same package footprint and compliance certifications. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The ZR431LF01TA is a direct functional equivalent to the ZR431LF01-7. Both components are manufactured by Diodes Incorporated and share identical electrical, thermal, and mechanical specifications. The ZR431LF01TA maintains active product status, ensuring ongoing availability and supply chain support. Both parts comply with ROHS3 and REACH requirements, meeting current regulatory standards for electronic components.

The ZR431LF01TA is supplied in Tape & Reel (TR) packaging format, which is standard for production environments and automated assembly processes. The ZR431LF01-7 was available in bulk packaging. This packaging difference does not affect electrical performance or pin compatibility.

For new designs or component replacement in existing applications, the ZR431LF01TA is the appropriate selection due to its active status and assured long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the ZR431LF01TA be used as a direct replacement for the ZR431LF01-7?

A: Yes. The ZR431LF01TA is electrically and mechanically identical to the ZR431LF01-7. Both components provide the same output voltage range (1.24V to 10V), current capacity (25mA), tolerance (±1%), and thermal characteristics (50ppm/°C). Pin configuration and SOT-23-3 package footprint are identical, enabling direct PCB substitution.

Q: What is the difference between the ZR431LF01-7 and ZR431LF01TA?

A: The primary differences are product status and packaging format. The ZR431LF01-7 is obsolete and was supplied in bulk packaging. The ZR431LF01TA is an active product supplied in Tape & Reel (TR) format, which is standard for automated manufacturing. Electrical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both the ZR431LF01-7 and ZR431LF01TA are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent.

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

A: Both components operate across -40°C to 85°C (TA). This range is suitable for industrial and commercial applications.

Q: Is the SOT-23-3 package footprint identical between these parts?

A: Yes. Both components use the SOT-23-3 package, also designated as TO-236-3 or SC-59. PCB layout and assembly tooling require no modification.