SC2904DR2G Equivalent & Substitute Parts

Part Overview

The SC2904DR2G is a general-purpose operational amplifier featuring two independent circuits in an 8-SOIC surface mount package. Manufactured by onsemi, this device is classified as obsolete, indicating discontinued production and limited availability for new designs. The SC2904DR2G operates across a supply voltage range of 3V to 26V and is rated for temperatures from -40°C to 85°C, making it suitable for standard industrial and commercial applications requiring dual-channel amplification.

Due to its obsolete status, locating SC2904DR2G units for production quantities presents supply chain challenges. Identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and component procurement.

Substiute Parts

SC2904DR2G

onsemiIn Stock: 64138SC2904DR2G Datasheet

Current PartRFQ

NCV2904DR2G

onsemiIn Stock: 655406NCV2904DR2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC2904DR2G is determined by strict alignment of the following critical parameters:

Electrical Compatibility Requirements:

• Amplifier Type: General Purpose (dual-channel configuration)
• Number of Circuits: 2 independent amplifier stages
• Current - Input Bias: 45 nA maximum
• Current - Output / Channel: 40 mA minimum
• Voltage - Supply Span: Minimum 3V to maximum 26V or greater

Mechanical Compatibility Requirements:

• Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Regulatory & Environmental Requirements:

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The NCV2904DR2G meets all electrical and mechanical compatibility criteria. While the NCV2904DR2G exhibits a higher maximum supply voltage (32V versus 26V) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C), these represent performance enhancements that do not restrict substitution in applications designed for the SC2904DR2G specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: NCV2904DR2G

The NCV2904DR2G is the direct functional equivalent of the SC2904DR2G and is the recommended substitute for new procurement and design continuity. Both devices are manufactured by onsemi and share identical pinout, package geometry, and core electrical specifications.

Advantages of NCV2904DR2G:

• Active product status with continuous manufacturing and supply availability
• ROHS3 compliant, meeting current environmental regulations
• Extended maximum supply voltage rating (32V versus 26V) provides additional design margin
• Extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) supports broader application environments
• Identical 8-SOIC package footprint enables direct PCB layout compatibility
• Moisture Sensitivity Level 1 (Unlimited) matches SC2904DR2G handling requirements

Compliance Verification: Both SC2904DR2G and NCV2904DR2G carry ROHS3 compliance certification and REACH Unaffected status, confirming regulatory alignment for applications subject to environmental restrictions.

Frequently Asked Questions (FAQ)

Q: Can the NCV2904DR2G directly replace the SC2904DR2G in existing designs?

A: Yes. The NCV2904DR2G is a direct pin-for-pin and functional equivalent. The 8-SOIC package footprint is identical, and all critical electrical parameters (input bias current, output current per channel, supply voltage range, and operating temperature) are compatible. The NCV2904DR2G meets or exceeds the SC2904DR2G specifications.

Q: What is the difference between SC2904DR2G and NCV2904DR2G?

A: The primary differences are product status and extended ratings. The SC2904DR2G is obsolete, while the NCV2904DR2G is an active product. The NCV2904DR2G offers a higher maximum supply voltage (32V versus 26V) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Both devices share identical core specifications for input bias current (45 nA), output current per channel (40 mA), and minimum supply voltage (3V).

Q: Are there packaging differences between these parts?

A: The SC2904DR2G is supplied in standard packaging, while the NCV2904DR2G is supplied in Tape & Reel (TR) format. Both use the identical 8-SOIC (0.154", 3.90mm Width) package case. Tape & Reel packaging is standard for high-volume production and does not affect electrical performance or PCB compatibility.

Q: What is the input offset voltage difference between SC2904DR2G and NCV2904DR2G?

A: The SC2904DR2G specifies a maximum input offset voltage of 2 mV, while the NCV2904DR2G specifies 7 mV. This difference is within acceptable tolerance for general-purpose amplifier applications. Applications requiring tighter offset voltage control should evaluate circuit-level compensation or trimming techniques.

Q: Are both parts RoHS compliant?

A: Yes. Both the SC2904DR2G and NCV2904DR2G are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the moisture sensitivity level for these parts?

A: Both devices carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.

Q: Why is the SC2904DR2G listed as obsolete?

A: The SC2904DR2G has been discontinued by onsemi. The NCV2904DR2G is the active replacement product, offering improved specifications and continued manufacturing support. For new designs and ongoing production, the NCV2904DR2G is the recommended component selection.