ZXRE125FFTC Equivalent & Substitute Parts

Part Overview

The ZXRE125FFTC is a shunt voltage reference IC manufactured by Diodes Incorporated, designed to provide a fixed 1.22V output with ±3% tolerance. This Surface Mount device in SOT-23-3 packaging is classified as a Power Management (PMIC) component and is currently listed as Obsolete. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity and procurement planning. The availability of active alternatives ensures uninterrupted supply chain access for applications requiring this voltage reference specification.

Substiute Parts

ZXRE125FFTC

Diodes IncorporatedIn Stock: 1064ZXRE125FFTC Datasheet

Current PartRFQ

ZXRE1004FFTA

Diodes IncorporatedIn Stock: 6455ZXRE1004FFTA Datasheet

Parametric EquivalentRFQ

ZXRE125FFTA

Diodes IncorporatedIn Stock: 5006ZXRE125FFTA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ZXRE125FFTC is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts identified—ZXRE125FFTA and ZXRE1004FFTA—maintain identical specifications for voltage output, current output, tolerance, temperature coefficient, noise characteristics, operating temperature range, and package configuration. All three parts are manufactured by Diodes Incorporated and share the same SOT-23-3 Surface Mount package.

The substitution logic is based on the following key parameters:

• Fixed output voltage of 1.22V
• Output current of 20 mA
• Tolerance of ±3%
• Temperature coefficient of 75ppm/°C
• Noise specification of 60µVrms (10Hz to 10kHz)
• Cathode current of 8 µA
• Operating temperature range of -40°C to 85°C
• SOT-23-3 package configuration

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the ZXRE125FFTC, the ZXRE125FFTA is the primary substitute. This part maintains Active product status, ensuring long-term availability and continued manufacturer support. Both parts share identical electrical and mechanical specifications, with the ZXRE125FFTA available in Tape & Reel packaging with 4905 units in stock.

The ZXRE1004FFTA serves as an alternative equivalent with identical parametric specifications. This part is designated as Last Time Buy, indicating limited future availability. Selection between ZXRE125FFTA and ZXRE1004FFTA should prioritize the ZXRE125FFTA for new designs and long-term production requirements due to its Active status.

All three parts maintain ROHS3 compliance and MSL Level 1 rating, supporting applications with environmental and regulatory requirements. The SOT-23-3 package configuration is consistent across all variants, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can ZXRE125FFTA directly replace ZXRE125FFTC in existing designs? A: Yes. The ZXRE125FFTA is a direct parametric equivalent with identical electrical specifications (1.22V output, ±3% tolerance, 75ppm/°C temperature coefficient, 60µVrms noise) and identical SOT-23-3 package configuration. No circuit modifications are required.

Q: What is the difference between ZXRE125FFTA and ZXRE1004FFTA? A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is product status: ZXRE125FFTA is Active, while ZXRE1004FFTA is Last Time Buy. For new designs, ZXRE125FFTA is recommended.

Q: Why is ZXRE125FFTC listed as Obsolete? A: The ZXRE125FFTC has reached end-of-life status. Active alternatives with identical specifications are available to ensure design continuity and supply chain reliability.

Q: Are packaging options different between the three parts? A: No. All three parts use the same SOT-23-3 Surface Mount package (TO-236-3, SC-59). Tape & Reel packaging is available for the substitute parts, which is standard for production quantities.

Q: Do all three parts meet the same compliance standards? A: Yes. ZXRE125FFTC, ZXRE125FFTA, and ZXRE1004FFTA are all ROHS3 compliant with MSL Level 1 rating, supporting equivalent environmental and regulatory requirements.

Q: What inventory levels are available for each part? A: ZXRE125FFTC has 1027 units in stock (Obsolete status). ZXRE125FFTA has 4905 units available (Active). ZXRE1004FFTA has 6400 units in stock (Last Time Buy).