INA199C2RSWR Equivalent & Substitute Parts

Part Overview

The INA199C2RSWR is a current sense regulator IC manufactured by Texas Instruments, designed for high/low-side current sensing applications. This Surface Mount device operates across an input voltage range of -0.1V to 26V with ±1% accuracy and is housed in a 10-UQFN (1.8x1.4mm) package. The part is currently Active in product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are necessary when the primary part experiences inventory constraints, end-of-life transitions, or when alternative packaging formats are required for manufacturing flexibility.

Substiute Parts

INA199C2RSWR

Texas InstrumentsIn Stock: 2730INA199C2RSWR Datasheet

Current PartRFQ

INA199C1RSWR

Texas InstrumentsIn Stock: 6015INA199C1RSWR Datasheet

Parametric EquivalentRFQ

INA199C1RSWT

Texas InstrumentsIn Stock: 2125INA199C1RSWT Datasheet

Parametric EquivalentRFQ

INA199C2RSWT

Texas InstrumentsIn Stock: 1106INA199C2RSWT Datasheet

Parametric EquivalentRFQ

INA199C3RSWR

Texas InstrumentsIn Stock: 3654INA199C3RSWR Datasheet

Parametric EquivalentRFQ

INA199C3RSWT

Texas InstrumentsIn Stock: 1868INA199C3RSWT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the INA199C2RSWR is determined by strict parametric equivalence across the following criteria:

Primary Substitution Parameters:

• Base Product Number: INA199
• Function: Current Sense
• Sensing Method: High/Low-Side
• Accuracy: ±1%
• Voltage - Input Range: -0.1V ~ 26V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-UFQFN
• Supplier Device Package: 10-UQFN (1.8x1.4)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain identical electrical specifications and mechanical form factors. Variations exist only in packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) and product lifecycle status (Active vs. Last Time Buy vs. Obsolete). These packaging and status differences do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Requirement: INA199C1RSWR and INA199C3RSWR maintain Active product status with full long-term availability. Both are supplied in Tape & Reel format and provide the highest inventory levels (5995 and 3602 units respectively), making them optimal for new designs and high-volume production.

For Last Time Buy Consideration: INA199C1RSWT and INA199C3RSWT are designated Last Time Buy. These parts remain electrically and mechanically equivalent but have limited future availability. Selection of these parts is appropriate only when existing inventory commitments or design freezes necessitate their use.

For Obsolete Status: INA199C2RSWT is marked Obsolete and supplied in Cut Tape & Digi-Reel format. This part is electrically equivalent but should not be selected for new designs due to end-of-life status. Use only when existing stock must be consumed or when design constraints mandate this specific packaging format.

Compliance Verification: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL Level 1 (Unlimited) rating. No additional compliance screening is required for substitution.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically interchangeable with the INA199C2RSWR? A: Yes. All substitute parts share identical electrical specifications including ±1% accuracy, -0.1V to 26V input voltage range, -40°C to 125°C operating temperature, and high/low-side sensing capability. Electrical performance is equivalent across all variants.

Q: What is the difference between RSWR and RSWT packaging designations? A: RSWR indicates Tape & Reel (TR) packaging format. RSWT indicates Cut Tape (CT) & Digi-Reel® packaging format. Both are Surface Mount compatible, but differ in tape configuration and reel specifications. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Can I substitute an Active status part for one marked Last Time Buy? A: Yes, from an electrical and mechanical standpoint. However, Last Time Buy parts have limited future availability. For new designs, prioritize Active status parts (INA199C1RSWR or INA199C3RSWR) to ensure long-term supply continuity.

Q: Is the Obsolete part (INA199C2RSWT) suitable for new production? A: No. Obsolete parts should not be selected for new designs. Use only when consuming existing inventory or when specific design constraints mandate this exact part number. For all new applications, select from Active status alternatives.

Q: Do all parts meet the same compliance standards? A: Yes. All substitute parts are ROHS3 compliant, REACH Unaffected, and carry MSL Level 1 (Unlimited) rating. No additional compliance documentation or screening is required for substitution.

Q: What inventory levels should I consider for procurement? A: INA199C1RSWR offers the highest inventory (5995 units), followed by INA199C3RSWR (3602 units). The main part INA199C2RSWR has 2702 units available. Inventory levels should inform long-term supply planning but do not affect electrical compatibility.