ZMR500FTC Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The ZMR500FTC is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed 5V output applications with 50mA current capacity in a SOT-23-3 surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The ZMR500FTC provides regulated 5V output with integrated over-current and over-temperature protection, suitable for low-power applications requiring stable voltage regulation across the -55°C to 125°C operating temperature range.

Substiute Parts

ZMR500FTC

Diodes IncorporatedIn Stock: 883ZMR500FTC Datasheet

Current PartRFQ

ZMR500FTA

Diodes IncorporatedIn Stock: 18391ZMR500FTA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ZMR500FTC is determined by strict equivalence across the following critical parameters:

• Output voltage: Fixed 5V
• Output current capacity: 50mA minimum
• Input voltage rating: 25V maximum
• Package type: SOT-23-3 surface mount
• Protection features: Over-current and over-temperature protection
• Operating temperature range: -55°C to 125°C
• Quiescent current: 70 µA
• PSRR performance: 72dB at 120Hz

The ZMR500FTA qualifies as a parametric equivalent substitute. Both parts share identical electrical specifications, protection features, and thermal operating range. The primary distinction is product status: ZMR500FTA is active production, whereas ZMR500FTC is obsolete. Both are manufactured by Diodes Incorporated and utilize the same SOT-23-3 package.

Parameter Comparison

Engineering Selection Recommendations

The ZMR500FTA is the direct substitute for the obsolete ZMR500FTC. Both parts are manufactured by Diodes Incorporated and maintain identical electrical and thermal specifications. Selection between these parts is determined by availability and product lifecycle status.

For new designs or production requiring active component support, ZMR500FTA is the appropriate selection. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either part.

Packaging options for ZMR500FTA include Cut Tape (CT) and Digi-Reel formats, providing flexibility for different procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can ZMR500FTA directly replace ZMR500FTC in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The ZMR500FTA operates at the same 5V fixed output, 50mA current capacity, and maintains the same thermal and electrical performance characteristics. Direct substitution is valid without circuit modification.

Q: What is the primary reason for substituting ZMR500FTC?

A: ZMR500FTC is classified as obsolete. ZMR500FTA is the active production equivalent from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there package compatibility concerns between ZMR500FTC and ZMR500FTA?

A: No. Both parts use the SOT-23-3 package (also designated TO-236-3 or SC-59). Pin configuration, footprint, and mounting requirements are identical.

Q: Do both parts meet current compliance standards?

A: Yes. Both ZMR500FTC and ZMR500FTA are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (Unlimited) for both parts, indicating no special handling requirements.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching output voltage (5V fixed), output current (50mA), input voltage rating (25V maximum), quiescent current (70 µA), PSRR (72dB at 120Hz), protection features (over-current and over-temperature), and operating temperature range (-55°C to 125°C).