TS1874IN Equivalent & Substitute Parts

Part Overview

The TS1874IN is a general purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 14-DIP package. This device is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, production continuity, and system maintenance. The TS1874IN operates across a supply voltage range of 1.8V to 6V with an operating temperature range of -40°C to 125°C, serving applications requiring low-power, general-purpose amplification in compact form factors.

Substiute Parts

TS1874IN

STMicroelectronicsIn Stock: 4046TS1874IN Datasheet

Current PartRFQ

MCP6274-E/P

Microchip TechnologyIn Stock: 1950MCP6274-E/P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS1874IN is determined by strict alignment of the following core parameters:

Functional Equivalence Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 4
• Output Type: Rail-to-Rail
• Package / Case: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

Operating Envelope Criteria:

• Voltage - Supply Span (Min): 1.8V or lower
• Voltage - Supply Span (Max): 6V or higher
• Operating Temperature: -40°C to 125°C or broader

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The MCP6274-E/P from Microchip Technology satisfies all functional equivalence criteria, operating envelope criteria, and compliance requirements, establishing it as a direct substitute for the obsolete TS1874IN.

Parameter Comparison

Engineering Selection Recommendations

The MCP6274-E/P is the qualified substitute for the obsolete TS1874IN based on the following engineering factors:

Product Status Alignment: The TS1874IN is obsolete, while the MCP6274-E/P maintains active production status with current inventory availability (1900 units in stock). This ensures long-term supply chain continuity and technical support.

Functional Compatibility: Both devices are 4-circuit general purpose rail-to-rail operational amplifiers in identical 14-DIP through-hole packages. Pin-to-pin compatibility is established, enabling direct board-level substitution without layout modifications.

Operating Envelope: The MCP6274-E/P operates within the TS1874IN supply voltage range (2V to 6V minimum and maximum, respectively) and maintains the identical operating temperature specification (-40°C to 125°C). The MCP6274-E/P minimum supply voltage of 2V is within the TS1874IN envelope, ensuring compatibility in all specified operating conditions.

Compliance Certification: Both devices carry ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings, maintaining regulatory and environmental standards across the substitution.

Performance Characteristics: The MCP6274-E/P demonstrates improved performance metrics relative to the TS1874IN, including higher slew rate (0.9V/µs versus 0.6V/µs), higher gain bandwidth product (2 MHz versus 1.8 MHz), significantly lower input bias current (1 pA versus 70 nA), and reduced supply current consumption (170µA versus 500µA across four channels). These improvements provide enhanced signal fidelity and reduced power dissipation in replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the MCP6274-E/P directly replace the TS1874IN without circuit modifications?

A: Yes. Both devices are 4-circuit general purpose rail-to-rail operational amplifiers in 14-DIP through-hole packages with identical pin configurations. Direct substitution is supported at the board level without layout or schematic changes.

Q: What is the primary reason for substituting the TS1874IN?

A: The TS1874IN is classified as obsolete. The MCP6274-E/P is an active production component from Microchip Technology, ensuring availability, technical support, and long-term supply chain reliability.

Q: Are there supply voltage compatibility concerns when substituting?

A: No. The MCP6274-E/P operates across a 2V to 6V supply range, which encompasses the TS1874IN specification of 1.8V to 6V. Applications designed for the TS1874IN operate within the MCP6274-E/P envelope.

Q: How do the performance characteristics compare?

A: The MCP6274-E/P provides superior performance: higher slew rate (0.9V/µs versus 0.6V/µs), higher gain bandwidth product (2 MHz versus 1.8 MHz), lower input bias current (1 pA versus 70 nA), and reduced supply current (170µA versus 500µA for four channels). Input offset voltage remains identical at 3 mV.

Q: Are there differences in output current capability?

A: Yes. The TS1874IN provides 80 mA per channel output current, while the MCP6274-E/P provides 25 mA per channel. Applications requiring the full 80 mA output current per channel must evaluate whether the reduced output current of the MCP6274-E/P is acceptable for the intended circuit function.

Q: Do both devices meet the same regulatory and environmental standards?

A: Yes. Both the TS1874IN and MCP6274-E/P are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity ratings, maintaining identical compliance certifications.

Q: What is the packaging format for the MCP6274-E/P?

A: The MCP6274-E/P is supplied in tube packaging, maintaining the 14-DIP (0.300", 7.62mm) through-hole form factor identical to the TS1874IN.

Q: Is the MCP6274-E/P available in current inventory?

A: Yes. The MCP6274-E/P is in active production with 1900 units of new original stock currently available, providing immediate procurement capability.