LM140LAH-5.0 Equivalent & Substitute Parts

Part Overview

The LM140LAH-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications. This through-hole component delivers 100mA output current in a TO-39-3 metal can package and is classified as Active product status. The device is suitable for applications requiring stable 5V regulation from input sources up to 35V. Substitute parts are identified based on matching electrical specifications, output configuration, package type, and compliance certifications to ensure direct functional equivalence in circuit designs.

Substiute Parts

LM140LAH-5.0

Texas InstrumentsIn Stock: 2287LM140LAH-5.0 Datasheet

Current PartRFQ

LM140LAH-5.0/NOPB

Texas InstrumentsIn Stock: 1511LM140LAH-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM140LAH-5.0 are identified based on strict equivalence across the following critical parameters:

• Output voltage configuration: Positive fixed 5V output
• Output current capability: 100mA
• Input voltage rating: Maximum 35V
• Package and mounting: TO-39-3 metal can, through-hole
• Electrical performance: Voltage dropout, quiescent current, PSRR characteristics
• Compliance and certifications: RoHS3, REACH status, MSL rating
• Product status: Active components only

The LM140LAH-5.0/NOPB is classified as a parametric equivalent substitute, sharing identical electrical specifications and package configuration with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the LM140LAH-5.0 and LM140LAH-5.0/NOPB are Active product status components from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts is based on availability and supply chain considerations rather than functional differences. Both parts meet ROHS3 compliance and REACH unaffected status, suitable for applications requiring regulatory compliance. The TO-39-3 metal can package provides thermal stability for through-hole PCB assembly. Quiescent current of 3mA and PSRR of 72dB (120Hz) support low-noise 5V regulation in precision applications.

Frequently Asked Questions (FAQ)

Q: Can LM140LAH-5.0/NOPB be used as a direct replacement for LM140LAH-5.0?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage, current rating, package type, and compliance certifications. They are functionally interchangeable in circuit designs.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix denotes a packaging variant without plumbum (lead-free) designation. Both versions are ROHS3 compliant and share identical electrical performance.

Q: Are there any differences in thermal performance between these parts?

A: No. Both parts feature the same TO-39-3 metal can package with identical thermal characteristics and operating temperature range of -55°C to 125°C.

Q: What is the significance of the 2V dropout voltage specification?

A: The maximum 2V dropout voltage at 1A indicates the minimum input-to-output voltage differential required for proper regulation. This specification applies to both the main part and substitute.

Q: Can these regulators be used in applications requiring higher output current?

A: No. Both parts are rated for 100mA maximum output current. Applications requiring higher current must use alternative regulator models with higher current ratings.

Q: Are both parts suitable for industrial temperature applications?

A: Yes. Both parts operate across the -55°C to 125°C temperature range, supporting industrial and extended temperature applications.