OPA547TG3 Equivalent & Substitute Parts

Part Overview

The OPA547TG3 is a general-purpose operational amplifier manufactured by Texas Instruments, housed in a TO-220-7 package with formed leads. This device is classified as obsolete, though 815 pieces remain available in new original stock. The OPA547TG3 delivers 750 mA output current per channel with a 1 MHz gain bandwidth product, making it suitable for applications requiring moderate output drive capability in a through-hole package format.

Due to the obsolete status of the OPA547TG3, identifying equivalent substitute parts ensures design continuity and supply chain reliability. Active alternatives with identical electrical and mechanical specifications are available to support ongoing production and maintenance requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Slew Rate	6	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	100	nA
Voltage - Input Offset	1	mV
Current - Supply	10	mA
Current - Output / Channel	750	mA
Voltage - Supply Span (Min)	8	V
Voltage - Supply Span (Max)	60	V
Operating Temperature Range	−40 to +85	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-7 Formed Leads	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the OPA547TG3 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters establish the substitution criteria:

Electrical Parameters (Must Match Exactly):

Slew Rate: 6 V/µs
Gain Bandwidth Product: 1 MHz
Current - Input Bias: 100 nA
Voltage - Input Offset: 1 mV
Current - Supply: 10 mA
Current - Output / Channel: 750 mA
Voltage - Supply Span: 8 V to 60 V
Operating Temperature Range: −40°C to +85°C

Mechanical Parameters (Must Match Exactly):

Package / Case: TO-220-7 Formed Leads
Mounting Type: Through Hole
Amplifier Type: General Purpose
Number of Circuits: 1

Compliance Parameters:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Substitute parts must satisfy all parameters listed above without deviation. Parts meeting these criteria are classified as direct equivalents suitable for pin-for-pin replacement.

Parameter Comparison

Parameter	OPA547TG3 (Main Part)	OPA547T (Substitute)	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Category	Linear, Amplifiers	Linear, Amplifiers	✓
Amplifier Type	General Purpose	General Purpose	✓
Number of Circuits	1	1	✓
Slew Rate	6 V/µs	6 V/µs	✓
Gain Bandwidth Product	1 MHz	1 MHz	✓
Current - Input Bias	100 nA	100 nA	✓
Voltage - Input Offset	1 mV	1 mV	✓
Current - Supply	10 mA	10 mA	✓
Current - Output / Channel	750 mA	750 mA	✓
Voltage - Supply Span (Min)	8 V	8 V	✓
Voltage - Supply Span (Max)	60 V	60 V	✓
Operating Temperature	−40°C to +85°C	−40°C to +85°C	✓
Mounting Type	Through Hole	Through Hole	✓
Package / Case	TO-220-7 Formed Leads	TO-220-7 Formed Leads	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Product Status	Obsolete	Active	—

Engineering Selection Recommendations

OPA547T as Primary Substitute:

The OPA547T is the manufacturer-recommended substitute for the OPA547TG3. Both devices are manufactured by Texas Instruments and share identical electrical specifications and mechanical packaging. The OPA547T differs only in product status: it is classified as active, whereas the OPA547TG3 is obsolete.

Compliance and Certification:

Both the OPA547TG3 and OPA547T carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to environmental and hazardous substance restrictions. The ECCN classification (EAR99) and HTSUS code (8542.33.0001) are identical for both parts.

Supply Chain Consideration:

The OPA547T maintains higher inventory availability (2364 pieces in stock) compared to the OPA547TG3 (815 pieces in stock), supporting sustained production schedules and reducing procurement lead times.

Pin-for-Pin Compatibility:

The OPA547T provides direct pin-for-pin replacement capability within TO-220-7 through-hole applications. No circuit modifications, PCB layout changes, or firmware updates are required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the OPA547T replace the OPA547TG3 in existing designs?

A: Yes. The OPA547T is a direct pin-for-pin equivalent. All electrical parameters, mechanical dimensions, and thermal characteristics are identical. No design modifications are necessary.

Q: What is the difference between OPA547TG3 and OPA547T?

A: The primary difference is product status. The OPA547TG3 is obsolete; the OPA547T is active. All electrical and mechanical specifications are identical. The OPA547T is the manufacturer-recommended replacement.

Q: Are there any package differences between these parts?

A: No. Both devices use the TO-220-7 package with formed leads for through-hole mounting. Pin configuration, lead spacing, and thermal characteristics are identical.

Q: Does the OPA547T meet the same compliance standards as the OPA547TG3?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected. They carry the same ECCN (EAR99) and HTSUS classifications.

Q: What is the operating temperature range for both parts?

A: Both the OPA547TG3 and OPA547T operate across −40°C to +85°C. Temperature performance is identical.

Q: Can I use the OPA547T in high-current applications?

A: Yes. The OPA547T delivers 750 mA output current per channel with a supply voltage range of 8 V to 60 V, supporting moderate to high-current general-purpose amplifier applications.

Q: Is the OPA547T suitable for new designs?

A: Yes. The OPA547T is an active product with full manufacturer support. It is appropriate for both new designs and legacy system maintenance.

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