ZMR250CL Equivalent & Substitute Parts

Part Overview

The ZMR250CL is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This through-hole TO-92 packaged device delivers 50mA output current at a fixed 2.5V output voltage with input voltage tolerance up to 22.5V. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system support, maintenance, and new design implementations where this voltage regulation function is required.

Substiute Parts

ZMR250CL

Diodes IncorporatedIn Stock: 1147ZMR250CL Datasheet

Current PartRFQ

ZMR250FTA

Diodes IncorporatedIn Stock: 35417ZMR250FTA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZMR250CL is determined by strict equivalence across the following critical parameters:

• Voltage Output (Fixed): 2.5V output voltage must be identical
• Maximum Input Voltage: 22.5V tolerance maintained
• Output Current Capability: 50mA minimum required
• Quiescent Current: 40 µA specification
• PSRR Performance: 75dB at 120Hz
• Temperature Range: -55°C to 125°C operating window
• Protection Features: Over Current and Over Temperature protection required
• Base Product Number: ZMR250 series designation
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The ZMR250FTA qualifies as a direct functional equivalent. While it differs in mounting technology (surface mount SOT-23-3 versus through-hole TO-92), all electrical specifications and performance parameters remain identical. The transition from through-hole to surface mount packaging reflects modern manufacturing practices while preserving complete functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ZMR250FTA is the designated manufacturer substitute for the obsolete ZMR250CL. Both devices maintain identical electrical specifications and regulatory compliance status. The ZMR250FTA carries active product status with significantly higher inventory availability (35,400 pcs versus 1,120 pcs), ensuring supply chain continuity.

Selection between these parts depends on circuit board design requirements. Through-hole applications requiring the original TO-92 package must source remaining ZMR250CL inventory. New designs and board revisions should adopt the ZMR250FTA SOT-23-3 package, which aligns with contemporary surface-mount manufacturing processes while delivering equivalent performance.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can ZMR250FTA replace ZMR250CL in existing through-hole designs?

A: Direct PCB substitution is not possible due to package incompatibility. ZMR250CL uses TO-92-3 through-hole leads while ZMR250FTA uses SOT-23-3 surface-mount pads. Board redesign or adapter solutions are required for through-hole applications.

Q: Are the electrical specifications identical between ZMR250CL and ZMR250FTA?

A: Yes. Both devices deliver 2.5V fixed output at 50mA maximum current, accept input voltages to 22.5V, maintain 40 µA quiescent current, and provide 75dB PSRR at 120Hz. Operating temperature range, protection features, and regulatory compliance are identical.

Q: Why is ZMR250CL marked obsolete?

A: The ZMR250CL represents legacy through-hole technology. Diodes Incorporated transitioned this product line to surface-mount packaging (ZMR250FTA) to align with modern manufacturing standards and reduce production costs.

Q: What are the compliance differences between these parts?

A: No compliance differences exist. Both ZMR250CL and ZMR250FTA are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) and REACH unaffected status.

Q: Is the ZMR250FTA available in tape and reel packaging?

A: Yes. ZMR250FTA is supplied in Tape & Reel (TR) format, standard for surface-mount component distribution and automated assembly processes.