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TSC101AIYLT Equivalent & Substitute Parts
Part Overview
The TSC101AIYLT is a current sense amplifier manufactured by STMicroelectronics, designed for single-circuit current sensing applications in automotive-grade environments. This linear amplifier operates across a 4V to 24V supply range with a slew rate of 0.9V/µs and -3dB bandwidth of 500 kHz. The device is housed in a SOT-23-5 surface mount package and maintains active product status with full AEC-Q100 automotive qualification.
Substitute parts are necessary when the TSC101AIYLT reaches end-of-life status, when inventory constraints occur, or when design requirements necessitate alternative current monitoring architectures. Texas Instruments INA series current monitors provide functionally equivalent alternatives with comparable electrical performance and identical packaging specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Current Sense | — |
| Number of Circuits | 1 | — |
| Slew Rate | 0.9 | V/µs |
| -3dB Bandwidth | 500 | kHz |
| Current - Input Bias | 5.5 | µA |
| Voltage - Input Offset | 200 | µV |
| Current - Supply | 165 | µA |
| Current - Output / Channel | 60 | mA |
| Voltage - Supply Span (Min) | 4 | V |
| Voltage - Supply Span (Max) | 24 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| Package / Case | SC-74A, SOT-753 | — |
| Supplier Device Package | SOT-23-5 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TSC101AIYLT is determined by the following critical parameters:
Package Compatibility: All substitute parts utilize the SOT-23-5 package (SC-74A, SOT-753 case), ensuring mechanical and electrical pin compatibility with the original design.
Operating Temperature Range: All substitute parts maintain the -40°C to 125°C operating temperature specification, supporting automotive and industrial applications.
Surface Mount Technology: All alternatives employ surface mount mounting type, compatible with standard PCB assembly processes.
Supply Voltage Range: The TSC101AIYLT operates from 4V to 24V. Substitute parts from the Texas Instruments INA series (INA193, INA194, INA195) accept input voltages from -16V to 80V, providing broader voltage compatibility while maintaining operation within the original device's specified range.
Functional Classification: The TSC101AIYLT functions as a current sense amplifier. Texas Instruments INA series devices function as current monitors with high-side sensing capability, providing equivalent current measurement functionality.
Compliance and Certification: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original device.
Parameter Comparison
| Parameter | TSC101AIYLT | INA193AIDBVR | INA193AIDBVT | INA194AIDBVR | INA194AIDBVT | INA195AIDBVR | INA195AIDBVT |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Operating Temperature (°C) | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package / Case | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
| Moisture Sensitivity Level | 1 (Unlimited) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) |
Engineering Selection Recommendations
Active Product Status: The TSC101AIYLT maintains active product status. All listed substitute parts (INA193AIDBVR, INA193AIDBVT, INA194AIDBVR, INA194AIDBVT, INA195AIDBVR, INA195AIDBVT) are active products, ensuring long-term availability and continued manufacturer support.
Compliance Alignment: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original device. This ensures compatibility with environmental and hazardous substance regulations across global markets.
Packaging Consistency: All substitute parts utilize identical SOT-23-5 packaging with SC-74A case designation. This ensures direct mechanical and electrical compatibility without PCB redesign requirements.
Moisture Sensitivity Consideration: The TSC101AIYLT carries MSL 1 (Unlimited) rating, while all Texas Instruments INA series substitutes carry MSL 2 (1 Year) rating. This difference reflects standard industry classifications for these device families and does not preclude substitution in standard manufacturing environments.
Inventory Availability: Texas Instruments INA series devices demonstrate substantial inventory levels across multiple part variants, supporting consistent supply chain access. INA194AIDBVR and INA195AIDBVR show particularly high inventory positions (38,411 and 29,400 units respectively).
Packaging Format Selection: Cut Tape (CT) and Digi-Reel® packaging is available for INA193AIDBVR, INA193AIDBVT, INA194AIDBVR, INA194AIDBVT, INA195AIDBVR, and INA195AIDBVT, matching the original device's packaging format. INA193AIDBVTG4 is available in Tape & Reel (TR) format only and carries obsolete product status.
Frequently Asked Questions (FAQ)
Q: Can INA193, INA194, and INA195 series devices directly replace the TSC101AIYLT without PCB modifications?
A: Yes. All substitute parts utilize the SOT-23-5 package with identical pin configuration and mechanical dimensions. Direct pin-for-pin substitution is supported without PCB layout changes.
Q: What is the functional difference between the TSC101AIYLT and the INA series substitutes?
A: The TSC101AIYLT is classified as a current sense amplifier. The INA series devices are current monitors with high-side sensing capability. Both device classes perform current measurement and monitoring functions within the specified supply voltage and temperature ranges.
Q: Are there differences in supply voltage operating ranges between the TSC101AIYLT and substitute parts?
A: The TSC101AIYLT operates from 4V to 24V. INA series substitutes accept input voltages from -16V to 80V. The substitute parts support the original device's voltage range and extend capability to broader voltage applications.
Q: What is the significance of the MSL 1 versus MSL 2 moisture sensitivity ratings?
A: MSL 1 (Unlimited) indicates the TSC101AIYLT has no moisture sensitivity restrictions. MSL 2 (1 Year) for INA series devices indicates standard moisture sensitivity with a one-year floor life from manufacturing. This difference reflects standard industry classifications and does not prevent substitution in conventional manufacturing environments with standard moisture control practices.
Q: Should INA193AIDBVTG4 be selected for new designs?
A: No. INA193AIDBVTG4 carries obsolete product status. Active alternatives include INA193AIDBVR, INA193AIDBVT, INA194AIDBVR, INA194AIDBVT, INA195AIDBVR, and INA195AIDBVT.
Q: What packaging format should be selected for automated assembly?
A: Cut Tape (CT) and Digi-Reel® packaging is recommended for automated pick-and-place assembly. This format is available for INA193AIDBVR, INA193AIDBVT, INA194AIDBVR, INA194AIDBVT, INA195AIDBVR, and INA195AIDBVT. Tape & Reel (TR) format is available for INA193AIDBVTG4 but this part carries obsolete status.
Q: Are all substitute parts automotive-grade qualified?
A: The TSC101AIYLT carries AEC-Q100 automotive qualification. The provided substitute parts do not list automotive qualification status in the supplied parameters. Automotive qualification requirements must be verified against specific application needs and Texas Instruments documentation.
Q: What is the inventory status for each substitute part?
A: INA194AIDBVR (38,411 units), INA195AIDBVR (29,400 units), INA193AIDBVR (47,200 units), INA195AIDBVT (15,592 units), INA193AIDBVT (8,400 units), INA194AIDBVT (4,010 units), and INA193AIDBVTG4 (1,652 units, obsolete status).
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