OPA548TG3 Equivalent & Substitute Parts

Part Overview

The OPA548TG3 is a power amplifier integrated circuit manufactured by Texas Instruments, designed for single-circuit power amplification applications in TO-220-7 package configuration. This component is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory (100,300 pieces in stock). The OPA548TG3 operates across a wide supply voltage range of 8V to 60V and delivers 5A output current per channel, making it suitable for high-current amplification tasks in industrial and consumer applications. Due to its Last Time Buy status, identifying functionally equivalent substitute components is essential for long-term design continuity and supply chain planning.

Substiute Parts

OPA548TG3

Texas InstrumentsIn Stock: 100399OPA548TG3 Datasheet

Current PartRFQ

OPA548T

Texas InstrumentsIn Stock: 5573OPA548T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPA548TG3 is determined by strict equivalence across the following critical parameters:

Electrical Performance Criteria:

• Amplifier Type: Power (single-circuit configuration)
• Output Current Capability: 5A per channel
• Supply Voltage Range: 8V to 60V minimum and maximum
• Slew Rate: 10V/µs
• Gain Bandwidth Product: 1 MHz
• Input Bias Current: 100 nA
• Input Offset Voltage: 2 mV
• Supply Current: 17 mA

Physical & Environmental Criteria:

• Package Type: TO-220-7 Formed Leads (Through Hole mounting)
• Operating Temperature: -40°C to 85°C
• Compliance: ROHS3 Compliant, REACH Unaffected

Product Status Consideration: Substitute parts must be in Active production status to ensure long-term availability and supply chain reliability, contrasting with the Last Time Buy status of the OPA548TG3.

Parameter Comparison

Engineering Selection Recommendations

The OPA548T is the direct functional equivalent and recommended substitute for the OPA548TG3. Both components share identical electrical specifications, thermal operating range, and physical packaging. The primary distinction is product lifecycle status: the OPA548TG3 is designated Last Time Buy, while the OPA548T maintains Active production status.

Selection Basis:

1. Electrical Equivalence: All critical parameters—output current (5A), supply voltage range (8V–60V), slew rate (10V/µs), gain bandwidth product (1 MHz), and input characteristics—are identical between both parts.

2. Package Compatibility: Both components utilize TO-220-7 Formed Leads packaging with Through Hole mounting, ensuring direct PCB footprint compatibility without layout modifications.

3. Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and consumer applications.

4. Supply Chain Continuity: The OPA548T's Active production status ensures sustained availability for future procurement cycles, addressing the supply risk associated with the OPA548TG3's Last Time Buy classification.

For new designs or long-term production planning, the OPA548T is the appropriate selection. For existing inventory management of OPA548TG3 components, the OPA548T provides seamless functional replacement when stock depletion occurs.

Frequently Asked Questions (FAQ)

Q1: Can the OPA548T directly replace the OPA548TG3 in existing circuit designs?

A: Yes. The OPA548T is electrically and mechanically identical to the OPA548TG3. All electrical parameters, including output current (5A), supply voltage range (8V–60V), slew rate (10V/µs), and input characteristics, are equivalent. The TO-220-7 package footprint is identical, requiring no PCB modifications.

Q2: What is the primary reason for substituting the OPA548TG3?

A: The OPA548TG3 carries a Last Time Buy product status, indicating discontinued manufacturing with finite remaining inventory. The OPA548T maintains Active production status, ensuring long-term availability and supply chain reliability for ongoing and future applications.

Q3: Are there any compliance or regulatory differences between these parts?

A: No. Both the OPA548TG3 and OPA548T are ROHS3 compliant and REACH unaffected. They share identical regulatory classifications and certifications.

Q4: Do the OPA548T and OPA548TG3 have different thermal or operating characteristics?

A: No. Both components operate across the identical temperature range of -40°C to 85°C and share identical thermal specifications. Supply current consumption is 17 mA for both parts.

Q5: Is the OPA548T available in the same packaging format?

A: Yes. The OPA548T is supplied in TO-220-7 Formed Leads package with Through Hole mounting, identical to the OPA548TG3. Both are available in Tube packaging format.

Q6: What inventory levels are currently available for each part?

A: The OPA548TG3 has 100,300 pieces in stock (Last Time Buy status). The OPA548T has 5,482 pieces in stock (Active production). Both are available as new original components.

Q7: Are there any performance trade-offs when switching from OPA548TG3 to OPA548T?

A: No trade-offs exist. The OPA548T delivers identical electrical performance across all specified parameters: 1 MHz gain bandwidth product, 10V/µs slew rate, 100 nA input bias current, and 2 mV input offset voltage.