TSM104WIDR Equivalent & Substitute Parts

Part Overview

The TSM104WIDR is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 16-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The identification of equivalent and substitute parts is necessary to ensure design continuity and procurement flexibility for applications requiring general-purpose amplification with the specified electrical and mechanical characteristics.

Substiute Parts

TSM104WIDR

Texas InstrumentsIn Stock: 1942TSM104WIDR Datasheet

Current PartRFQ

TSM104WAIDT

STMicroelectronicsIn Stock: 35680TSM104WAIDT Datasheet

MFR RecommendedRFQ

TSM104WIDT

STMicroelectronicsIn Stock: 18767TSM104WIDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSM104WIDR is determined by strict equivalence across the following critical parameters:

Functional Equivalence Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 4
• Slew Rate: 0.3 V/µs
• Gain Bandwidth Product: 900 kHz
• Current - Output / Channel: 40 mA
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C to 105°C

Allowable Parameter Variations:

• Current - Input Bias: Substitute parts may have lower values (20 nA acceptable vs. 30 nA)
• Voltage - Input Offset: Substitute parts may have lower values (500 µV acceptable vs. 1 mV)
• Voltage - Supply Span (Max): Substitute parts may have higher maximum ratings (32 V acceptable vs. 30 V)
• Current - Supply: Equivalent at 1.4 mA
• Moisture Sensitivity Level: May vary (MSL 3 acceptable vs. MSL 1)

The identified substitute parts TSM104WAIDT and TSM104WIDT maintain functional equivalence through identical core amplifier specifications while offering improved electrical performance characteristics in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

TSM104WAIDT (STMicroelectronics) is suitable for applications where improved input bias current performance (20 nA vs. 30 nA) and reduced input offset voltage (500 µV vs. 1 mV) provide design advantages. This part is in Active product status with substantial inventory availability (35,581 pieces). The higher maximum supply voltage rating (32 V vs. 30 V) extends operational flexibility. Moisture sensitivity level MSL 3 requires standard handling procedures within the 168-hour window.

TSM104WIDT (STMicroelectronics) maintains identical input offset voltage specification (1 mV) to the TSM104WIDR while offering improved input bias current (20 nA vs. 30 nA) and extended maximum supply voltage (32 V vs. 30 V). This part is in Active product status with inventory availability (18,730 pieces). Moisture sensitivity level MSL 3 requires standard handling procedures within the 168-hour window.

Both substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original part. Selection between TSM104WAIDT and TSM104WIDT depends on input offset voltage tolerance requirements for the specific application circuit.

Frequently Asked Questions (FAQ)

Q: Can TSM104WAIDT or TSM104WIDT be used as direct replacements for TSM104WIDR in existing designs?

A: Yes. Both substitute parts maintain identical core amplifier specifications (4 circuits, 0.3 V/µs slew rate, 900 kHz gain bandwidth product, 40 mA output current per channel) and are packaged in the same 16-SOIC surface mount configuration. Pin-to-pin compatibility is maintained. The improved input bias current and offset voltage specifications of the substitute parts do not create incompatibility with existing circuit designs.

Q: What is the difference between TSM104WAIDT and TSM104WIDT?

A: The primary difference is input offset voltage specification. TSM104WAIDT specifies 500 µV input offset voltage, while TSM104WIDT specifies 1 mV input offset voltage (matching the original TSM104WIDR). Both parts offer identical input bias current (20 nA) and all other electrical parameters. Selection depends on circuit precision requirements.

Q: Are there packaging differences between these parts?

A: All three parts use identical 16-SOIC surface mount packaging (0.154" width, 3.90mm). No PCB layout modifications are required for substitution.

Q: What is the significance of the Moisture Sensitivity Level (MSL) difference?

A: The TSM104WIDR has MSL 1 (unlimited shelf life), while substitute parts have MSL 3 (168-hour limit after moisture exposure). Standard moisture control procedures during storage and handling are required for substitute parts. This does not affect circuit performance or reliability when proper handling is maintained.

Q: Why is TSM104WIDR classified as Last Time Buy?

A: Last Time Buy status indicates the manufacturer (Texas Instruments) has discontinued production. Substitute parts from STMicroelectronics (TSM104WAIDT and TSM104WIDT) are in Active production status, ensuring long-term availability and supply continuity.

Q: Are regulatory certifications equivalent across all three parts?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Regulatory requirements are met identically.