MCP6H74T-E/ST Equivalent & Substitute Parts

Part Overview

The MCP6H74T-E/ST is a general purpose operational amplifier manufactured by Microchip Technology, configured as a quad (4-circuit) rail-to-rail output device in a 14-TSSOP surface mount package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). The MCP6H74T-E/ST serves applications requiring low-power, general-purpose amplification with rail-to-rail output capability across supply voltages from 3.5 V to 12 V and operating temperatures from -40°C to 125°C. Equivalent and substitute parts are identified based on matching package type, circuit count, output configuration, and electrical parameter compatibility within specified tolerance ranges.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	MCP6H74T-E/ST	—
Manufacturer	Microchip Technology	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	3.5	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 125	°C
Slew Rate	2	V/µs
Gain Bandwidth Product	2.7	MHz
Current - Input Bias	10	pA
Voltage - Input Offset	1	mV
Current - Supply (x4 Channels)	480	µA
Current - Output / Channel	53	mA
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution eligibility for the MCP6H74T-E/ST is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-TSSOP surface mount package with identical 0.173" (4.40mm) width to ensure PCB footprint compatibility without layout redesign.

Circuit Configuration: Substitute parts must contain exactly 4 independent amplifier circuits to maintain functional equivalence in multi-channel applications.

Output Configuration: Rail-to-rail output capability is required to preserve the full supply voltage swing performance of the original design.

Supply Voltage Range: Substitute parts must operate within or encompass the 3.5 V to 12 V supply span of the MCP6H74T-E/ST. Parts with extended ranges (e.g., 2.7 V minimum) remain compatible as they support the original operating window.

Operating Temperature Range: Substitute parts must support the -40°C to 125°C temperature specification. Parts meeting this exact range or exceeding it are acceptable.

Electrical Performance: Input bias current, input offset voltage, slew rate, gain bandwidth product, and output current per channel are secondary selection criteria. Substitutes may vary within engineering tolerance provided primary parameters align.

Compliance & Status: All substitute parts must maintain Active product status and RoHS3 compliance to ensure long-term availability and regulatory conformance.

Parameter Comparison

Parameter	MCP6H74T-E/ST	LMC6036IMTX/NOPB	TS924AIPT	TS924AIYPT	TS924IPT	TS924IYPT
Manufacturer	Microchip Technology	National Semiconductor	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Number of Circuits	4	4	4	4	4	4
Output Type	Rail-to-Rail	Differential, Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply Span (Min)	3.5 V	2 V	2.7 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	12 V	15.5 V	12 V	12 V	12 V	12 V
Operating Temperature	-40 to 125°C	-40 to 85°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 125°C
Slew Rate	2 V/µs	1.5 V/µs	1.3 V/µs	1.3 V/µs	1.3 V/µs	1.3 V/µs
Gain Bandwidth Product	2.7 MHz	1.4 MHz	4 MHz	4 MHz	4 MHz	4 MHz
Current - Input Bias	10 pA	0.02 pA	15 nA	15 nA	15 nA	15 nA
Voltage - Input Offset	1 mV	500 µV	900 µV	900 µV	3 mV	3 mV
Current - Supply (x4 Channels)	480 µA	1.3 mA	1 mA	1 mA	1 mA	1 mA
Current - Output / Channel	53 mA	8 mA	80 mA	80 mA	80 mA	80 mA
RoHS Status	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active
Grade	—	Automotive	Automotive	Automotive	Automotive	Automotive
Qualification	—	AEC-Q100	AEC-Q100	AEC-Q100	AEC-Q100	AEC-Q100

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The TS924AIPT, TS924AIYPT, TS924IPT, and TS924IYPT variants from STMicroelectronics are direct functional equivalents to the MCP6H74T-E/ST. All four parts maintain identical package geometry (14-TSSOP), circuit count (4), output configuration (rail-to-rail), and operating temperature range (-40°C to 125°C). These parts are Active status with RoHS3 compliance. The TS924 series demonstrates superior gain bandwidth product (4 MHz versus 2.7 MHz) and higher output current per channel (80 mA versus 53 mA), providing enhanced performance headroom. All TS924 variants carry AEC-Q100 automotive qualification, ensuring reliability in demanding environments. Selection among TS924 variants depends on packaging preference: TS924AIPT and TS924IPT use Cut Tape (CT) & Digi-Reel® packaging, while TS924AIYPT and TS924IYPT use Tape & Reel (TR) packaging.

Secondary Substitute (Limited Compatibility):

The LMC6036IMTX/NOPB from National Semiconductor meets package and circuit count requirements but exhibits reduced operating temperature range (-40°C to 85°C, versus -40°C to 125°C). This part is suitable only for applications not requiring the full 125°C upper temperature limit. The LMC6036IMTX/NOPB offers superior input bias current (0.02 pA) and lower input offset voltage (500 µV) but reduced slew rate (1.5 V/µs) and gain bandwidth product (1.4 MHz). This part is Active status with AEC-Q100 automotive qualification.

Selection Criteria Summary:

For applications requiring full -40°C to 125°C temperature operation, select from the TS924 series (AIPT, AIYPT, IPT, or IYPT variants). For applications with temperature limits not exceeding 85°C, the LMC6036IMTX/NOPB is acceptable. Packaging selection (Cut Tape versus Tape & Reel) should align with procurement and assembly workflow requirements. All recommended substitutes maintain Active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q1: Can the TS924AIPT directly replace the MCP6H74T-E/ST without PCB modifications?

A: Yes. Both parts use identical 14-TSSOP package geometry with 0.173" (4.40mm) width. PCB footprint, pin spacing, and mounting requirements are identical. No layout redesign is required. Pin-to-pin functional compatibility is maintained for all four amplifier circuits.

Q2: What is the difference between TS924AIPT and TS924AIYPT?

A: Both parts are electrically identical. The primary difference is packaging: TS924AIPT is supplied in Cut Tape (CT) & Digi-Reel® format, while TS924AIYPT is supplied in Tape & Reel (TR) format. Select based on your assembly equipment and procurement workflow. Electrical performance, temperature range, and compliance are identical.

Q3: Why does the LMC6036IMTX/NOPB have a lower maximum operating temperature (85°C) than the MCP6H74T-E/ST (125°C)?

A: The LMC6036IMTX/NOPB is a CMOS-based amplifier with different thermal characteristics than the MCP6H74T-E/ST general-purpose design. The 85°C maximum reflects the device's thermal limits. Use the LMC6036IMTX/NOPB only in applications where the ambient or junction temperature does not exceed 85°C.

Q4: Are all substitute parts RoHS3 compliant?

A: The TS924 series (AIPT, AIYPT, IPT, IYPT) are explicitly RoHS3 compliant. The LMC6036IMTX/NOPB compliance status is not specified in the provided data. Verify RoHS3 compliance with the supplier before selecting the LMC6036IMTX/NOPB for applications requiring regulatory certification.

Q5: What is the significance of AEC-Q100 qualification on the TS924 and LMC6036 parts?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. All TS924 variants and the LMC6036IMTX/NOPB carry this qualification, making them suitable for automotive and high-reliability applications. The MCP6H74T-E/ST does not list AEC-Q100 qualification in the provided data.

Q6: Can I use the LMC6036IMTX/NOPB in a design currently using the MCP6H74T-E/ST?

A: Functional substitution is possible if your application does not require operation above 85°C. The LMC6036IMTX/NOPB offers superior input bias current and offset voltage but lower slew rate and bandwidth. Verify that the reduced performance parameters (1.5 V/µs slew rate, 1.4 MHz bandwidth) meet your circuit requirements before substitution.

Q7: Which substitute part offers the best output current capability?

A: The TS924 series (AIPT, AIYPT, IPT, IYPT) provides 80 mA per channel output current, compared to 53 mA for the MCP6H74T-E/ST and 8 mA for the LMC6036IMTX/NOPB. Select TS924 variants for applications requiring higher output drive capability.

Q8: Is the MCP6H74T-E/ST still in production?

A: Yes, the MCP6H74T-E/ST is classified as Active product status with 709 units in stock, indicating ongoing availability and production support from Microchip Technology.

Q9: What inventory levels are available for substitute parts?

A: Current inventory levels are: TS924AIYPT (15,300 units), TS924IPT (33,700 units), TS924AIPT (9,702 units), TS924IYPT (2,800 units), and LMC6036IMTX/NOPB (1,104 units). Verify current availability with your supplier before finalizing procurement decisions.

Q10: Do all substitute parts support the 3.5 V minimum supply voltage of the MCP6H74T-E/ST?

A: No. The TS924 series supports 2.7 V minimum, and the LMC6036IMTX/NOPB supports 2 V minimum. Both are compatible with the 3.5 V to 12 V operating range of the MCP6H74T-E/ST. However, if your design operates below 3.5 V, the substitute parts offer extended low-voltage capability not present in the original part.

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