LM336LPRE3-2-5 Equivalent & Substitute Parts

Part Overview

The LM336LPRE3-2-5 is a shunt voltage reference IC manufactured by Texas Instruments, designed to provide a fixed 2.49V output with ±4% tolerance. This component operates as a precision voltage reference in power management applications, delivering a constant 10 mA output current. The part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

LM336LPRE3-2-5

Texas InstrumentsIn Stock: 933LM336LPRE3-2-5 Datasheet

Current PartRFQ

LM336Z-2.5/LFT7

Texas InstrumentsIn Stock: 5012LM336Z-2.5/LFT7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM336LPRE3-2-5 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.49V
• Output current rating of 10 mA
• Tolerance specification of ±4%
• Cathode current of 400 µA
• Operating temperature range of 0°C ~ 70°C
• Through-hole mounting configuration
• TO-92-3 package compatibility
• Shunt reference type classification

The LM336Z-2.5/LFT7 meets all these criteria as a direct functional equivalent. The primary distinction is product status: the substitute is active and available, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The LM336Z-2.5/LFT7 is the direct substitute for the obsolete LM336LPRE3-2-5. Both components are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The substitute part is currently in active production status with 4963 units available in inventory, compared to the obsolete status of the original part.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production continuity. The packaging format remains unchanged at TO-92-3, allowing direct board-level replacement without PCB modification.

Selection of the LM336Z-2.5/LFT7 is appropriate for applications requiring a 2.49V fixed shunt voltage reference with 10 mA output current and ±4% tolerance in the 0°C to 70°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the LM336Z-2.5/LFT7 directly replace the LM336LPRE3-2-5 on existing PCBs?

A: Yes. Both parts use the TO-92-3 package with identical pinout and electrical characteristics. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The LM336LPRE3-2-5 is obsolete. The LM336Z-2.5/LFT7 is the active equivalent from the same manufacturer with identical specifications.

Q: Are there differences in compliance or certifications?

A: Both parts are ROHS3 compliant and REACH unaffected. Regulatory status is equivalent.

Q: What are the critical parameters that define substitution eligibility?

A: Output voltage (2.49V), output current (10 mA), tolerance (±4%), cathode current (400 µA), operating temperature range (0°C ~ 70°C), and TO-92-3 package format must all match.

Q: Is the packaging format identical?

A: Yes. Both parts use TO-226-3 / TO-92-3 (TO-226AA) formed leads configuration.

Q: What is the inventory status of the substitute part?

A: The LM336Z-2.5/LFT7 has 4963 units available as new original stock.