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INA203AIDGSTG4 Equivalent & Substitute Parts
Part Overview
The INA203AIDGSTG4 is a high-side current monitor IC manufactured by Texas Instruments, designed for power management applications. This part operates across a wide input voltage range of -16V to 80V with ±4.6% accuracy and delivers a 1mA output signal. The device is packaged in a 10-VSSOP surface mount configuration and is ROHS3 compliant.
The INA203AIDGSTG4 is currently discontinued at DiGi Electronics. Equivalent and substitute parts from the Texas Instruments INA20x current monitor series provide direct functional alternatives while maintaining core electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Function | Current Monitor |
| Sensing Method | High-Side |
| Accuracy | ±4.6% |
| Voltage - Input Range | -16V ~ 80V |
| Current - Output | 1mA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-VSSOP |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
Substitute Part Grouping Explanation
Substitute parts for the INA203AIDGSTG4 are selected based on strict parametric equivalence within the Texas Instruments INA20x current monitor family. All substitute parts maintain identical electrical specifications across the following critical parameters:
- Sensing Method: High-Side
- Accuracy: ±4.6%
- Voltage - Input Range: -16V ~ 80V
- Current - Output: 1mA
- Operating Temperature: -40°C ~ 125°C
- Mounting Type: Surface Mount
- Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package: 10-VSSOP
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 2 (1 Year)
Substitutes differ only in packaging format (Tape & Reel vs. Cut Tape) and product lifecycle status (Active, Last Time Buy, Obsolete, or Discontinued).
Parameter Comparison
| Part Number | Manufacturer | Accuracy | Input Voltage | Output Current | Operating Temp | Package Type | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|
| INA203AIDGSTG4 | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Discontinued | 860 Pcs |
| INA203AIDGSR | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Active | 3459 Pcs |
| INA203AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Last Time Buy | 1246 Pcs |
| INA204AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Last Time Buy | 1118 Pcs |
| INA205AIDGSR | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Active | 3486 Pcs |
| INA205AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Obsolete | 20480 Pcs |
| INA206AIDGSR | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Active | 19553 Pcs |
| INA206AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Obsolete | 2410 Pcs |
| INA207AIDGSR | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Active | 2000 Pcs |
| INA207AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Obsolete | 968 Pcs |
| INA208AIDGST | Texas Instruments | ±4.6% | -16V ~ 80V | 1mA | -40°C ~ 125°C | 10-VSSOP | Last Time Buy | 1199 Pcs |
Engineering Selection Recommendations
For applications requiring the INA203AIDGSTG4, the following selection criteria apply based on product lifecycle status and compliance:
Preferred Substitutes (Active Status):
- INA203AIDGSR: Active product status with highest inventory availability (3459 Pcs). Tape & Reel packaging. Recommended for new designs and long-term supply continuity.
- INA205AIDGSR: Active product status with substantial inventory (3486 Pcs). Tape & Reel packaging. Suitable for applications where INA205 base product number is acceptable.
- INA206AIDGSR: Active product status with highest inventory among all substitutes (19553 Pcs). Tape & Reel packaging. Optimal for high-volume production requirements.
- INA207AIDGSR: Active product status with adequate inventory (2000 Pcs). Tape & Reel packaging. Available for applications requiring INA207 base product designation.
Secondary Substitutes (Last Time Buy Status):
- INA203AIDGST: Last Time Buy status. Limited future availability. Suitable only for immediate requirements.
- INA204AIDGST: Last Time Buy status. Limited future availability. Suitable only for immediate requirements.
- INA208AIDGST: Last Time Buy status. Limited future availability. Suitable only for immediate requirements.
Not Recommended (Obsolete Status):
- INA205AIDGST: Obsolete status. Not suitable for new designs despite high inventory.
- INA206AIDGST: Obsolete status. Not suitable for new designs.
- INA207AIDGST: Obsolete status. Not suitable for new designs.
All substitute parts maintain ROHS3 compliance and MSL 2 (1 Year) rating, ensuring compatibility with standard manufacturing and storage requirements.
Frequently Asked Questions (FAQ)
Q: Can INA203AIDGSR directly replace INA203AIDGSTG4?
A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: INA203AIDGSR uses Tape & Reel (TR) packaging while INA203AIDGSTG4 uses standard packaging. Both are 10-VSSOP devices with identical electrical specifications.
Q: What is the difference between INA203, INA204, INA205, INA206, INA207, and INA208?
A: Within the provided parameter set, all variants maintain identical electrical specifications: ±4.6% accuracy, -16V to 80V input range, 1mA output, and 10-VSSOP packaging. The base product number designation (INA203 through INA208) represents different product lines within the Texas Instruments current monitor family, but substitution is valid based on the electrical and mechanical parameters provided.
Q: Why is INA205AIDGST marked Obsolete despite high inventory?
A: Product status reflects manufacturer lifecycle designation, not inventory availability. Obsolete parts are no longer manufactured and supported by the vendor. High inventory may exist in distribution channels, but future availability and technical support cannot be guaranteed.
Q: Is Tape & Reel (TR) packaging compatible with Cut Tape (CT) & Digi-Reel® applications?
A: Both packaging formats contain identical die and electrical specifications. The difference is in delivery format: Tape & Reel is supplied on continuous tape for automated pick-and-place equipment, while Cut Tape & Digi-Reel® is supplied in smaller quantities on cut tape. Component selection depends on assembly equipment and order quantity requirements.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All parts listed maintain ROHS3 compliance and MSL 2 (1 Year) rating, meeting standard environmental and moisture sensitivity requirements for surface mount assembly.
Q: Which substitute offers the best long-term supply security?
A: INA206AIDGSR offers the highest inventory availability (19553 Pcs) with Active product status, providing optimal supply continuity for production planning.
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