LM140LAH-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LM140LAH-5.0/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, designed to provide a fixed 5V output with 100mA current capacity. This through-hole component operates across a wide temperature range (-55°C to 125°C) and includes integrated protection features for over-temperature and short-circuit conditions. The part is currently active in production with 1445 units in stock. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the same product category.

Substiute Parts

LM140LAH-5.0/NOPB

Texas InstrumentsIn Stock: 1511LM140LAH-5.0/NOPB Datasheet

Current PartRFQ

LM140LAH-5.0

Texas InstrumentsIn Stock: 2287LM140LAH-5.0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM140LAH-5.0/NOPB is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 5V
• Output current rating of 100mA
• Maximum input voltage of 35V
• Voltage dropout specification of 2V @ 1A
• Quiescent current of 3 mA
• PSRR of 72dB (120Hz)
• Over-temperature and short-circuit protection
• Operating temperature range of -55°C to 125°C
• TO-39-3 Metal Can package configuration
• Through-hole mounting compatibility
• ROHS3 compliance status

Parts meeting all these specifications are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the LM140LAH-5.0/NOPB and LM140LAH-5.0 are active products from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts is based on packaging designation and inventory availability. The LM140LAH-5.0/NOPB includes the "/NOPB" suffix, indicating lead-free plating without lead-containing materials. Both parts maintain ROHS3 compliance and are suitable for applications requiring fixed 5V regulation at 100mA output current. Inventory levels show 2178 units available for the LM140LAH-5.0 variant compared to 1445 units for the LM140LAH-5.0/NOPB, which may influence procurement decisions based on lead time requirements.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage, current rating, protection features, and package configuration. The primary difference is the "/NOPB" designation, which specifies lead-free plating. Both maintain ROHS3 compliance.

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

A: The "/NOPB" suffix denotes "No Lead" or lead-free plating on the component leads. This is a packaging designation that does not affect electrical performance or functional compatibility.

Q: Are there any temperature or performance differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C and deliver the same electrical performance, including 72dB PSRR at 120Hz and 2V maximum dropout voltage.

Q: Can these regulators be used in high-temperature applications?

A: Yes. Both parts are rated for operation up to 125°C and include over-temperature protection. Thermal management considerations should be evaluated based on specific application requirements.

Q: What is the significance of the TO-39-3 Metal Can package?

A: The TO-39-3 Metal Can package is a through-hole component with three leads. This package type provides mechanical stability and is suitable for applications requiring traditional PCB mounting. Pin compatibility is maintained across both equivalent parts.

Q: Are these parts suitable for automotive or industrial applications?

A: Both parts are ROHS3 compliant and rated for -55°C to 125°C operation, making them suitable for industrial temperature ranges. Specific automotive qualification requirements should be verified against application standards.