OPA241PA Equivalent & Substitute Parts

Part Overview

The OPA241PA is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device features rail-to-rail output capability and operates across a wide supply voltage range of 2.7V to 36V, making it suitable for low-power analog signal processing applications. The OPA241PA is currently classified as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and long-term system support.

Substiute Parts

OPA241PA

Texas InstrumentsIn Stock: 4436OPA241PA Datasheet

Current PartRFQ

OPA241UA/2K5

Texas InstrumentsIn Stock: 100400OPA241UA/2K5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA241PA is determined by electrical parameter equivalence and functional compatibility. The following criteria establish valid substitution:

Electrical Equivalence Parameters:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 0.01 V/µs
• Gain Bandwidth Product: 35 kHz
• Current - Input Bias: 4 nA
• Voltage - Input Offset: 100 µV
• Current - Supply: 27 µA
• Current - Output / Channel: 21 mA
• Voltage - Supply Span: 2.7V to 36V
• Operating Temperature Range: -40°C to 85°C

Mechanical Compatibility: Substitutes must maintain identical electrical specifications. Package form factor may differ (through-hole versus surface-mount) provided the base product number remains OPA241 and all electrical parameters are preserved.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to ensure regulatory alignment with the original component.

Parameter Comparison

Engineering Selection Recommendations

The OPA241UA/2K5 is the manufacturer-recommended substitute for the OPA241PA. Both devices share identical electrical specifications across all functional parameters, including amplifier type, gain bandwidth product, slew rate, supply voltage range, and operating temperature range. The primary distinction is packaging format: the OPA241PA uses through-hole 8-DIP mounting, while the OPA241UA/2K5 uses surface-mount 8-SOIC packaging.

The OPA241UA/2K5 holds Active product status, ensuring continued availability and manufacturing support, whereas the OPA241PA is designated Last Time Buy. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production transitions.

Selection between these parts depends on circuit board assembly methodology. Through-hole mounting (OPA241PA) is appropriate for manual assembly or legacy PCB designs. Surface-mount packaging (OPA241UA/2K5) is standard for automated assembly processes and modern PCB layouts. Electrical performance and functional behavior are equivalent across both package options.

Frequently Asked Questions (FAQ)

Q: Can the OPA241UA/2K5 directly replace the OPA241PA in existing designs?

A: Electrical substitution is complete. The OPA241UA/2K5 provides identical electrical performance. However, PCB layout modification is required due to different package formats. The OPA241PA uses through-hole 8-DIP pins, while the OPA241UA/2K5 uses surface-mount 8-SOIC pads. Footprint redesign is necessary for physical installation.

Q: What is the significance of the Last Time Buy status for the OPA241PA?

A: Last Time Buy indicates the OPA241PA has reached end-of-life. Texas Instruments will cease production after a specified date. New designs should transition to the OPA241UA/2K5 to ensure long-term component availability and supply chain continuity.

Q: Are the electrical specifications identical between OPA241PA and OPA241UA/2K5?

A: Yes. All electrical parameters are identical: slew rate (0.01 V/µs), gain bandwidth product (35 kHz), input bias current (4 nA), input offset voltage (100 µV), supply current (27 µA), output current (21 mA), and supply voltage range (2.7V to 36V). Operating temperature range is also identical (-40°C to 85°C).

Q: What are the package differences between these parts?

A: The OPA241PA is housed in an 8-DIP through-hole package with 0.300" (7.62mm) spacing. The OPA241UA/2K5 uses an 8-SOIC surface-mount package with 0.154" (3.90mm) width. Pin count and electrical function are identical; only the physical form factor differs.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the OPA241PA and OPA241UA/2K5 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Which part should be selected for new product development?

A: The OPA241UA/2K5 is the appropriate choice for new designs. It maintains Active product status with guaranteed availability, whereas the OPA241PA is Last Time Buy with limited remaining stock. Electrical performance is equivalent; surface-mount packaging aligns with modern manufacturing processes.