MAX409BCSA Equivalent & Substitute Parts

Part Overview

The MAX409BCSA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a single-circuit rail-to-rail output device in an 8-SOIC surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability through standard distribution channels. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure project timelines, and secure long-term component supply for production and maintenance applications.

Substiute Parts

MAX409BCSA

Analog Devices Inc./Maxim IntegratedIn Stock: 1941MAX409BCSA Datasheet

Current PartRFQ

MAX409BCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1019MAX409BCSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX409BCSA is determined by strict equivalence across all electrical and mechanical parameters. The substitute relationship is based on the following criteria:

Electrical Parameter Equivalence:

• Amplifier type (General Purpose)
• Number of circuits (1)
• Output type (Rail-to-Rail)
• Slew rate (0.08 V/µs)
• Gain bandwidth product (150 kHz)
• Input bias current (0.1 pA)
• Input offset voltage (750 µV)
• Supply current (1 µA)
• Output current per channel (600 µA)
• Supply voltage range (2.5 V to 10 V)
• Operating temperature range (0°C to 70°C)

Mechanical Parameter Equivalence:

• Package type (8-SOIC)
• Package dimensions (0.154", 3.90mm Width)
• Mounting type (Surface Mount)

The MAX409BCSA+ is identified as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

MAX409BCSA+ as Primary Substitute:

The MAX409BCSA+ is the direct functional equivalent of the MAX409BCSA. All electrical parameters and mechanical specifications are identical. The MAX409BCSA+ is classified as an active product with current manufacturing status, ensuring availability and supply chain continuity.

Compliance Considerations:

The MAX409BCSA is RoHS non-compliant, while the MAX409BCSA+ is ROHS3 compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the MAX409BCSA+ is the appropriate selection. Both parts maintain REACH Unaffected status and EAR99 export classification.

Packaging and Inventory:

The MAX409BCSA is supplied in standard packaging with 1900 units in stock. The MAX409BCSA+ is supplied in tube packaging with 950 units in stock. Packaging format selection depends on assembly process requirements and handling procedures.

Moisture Sensitivity:

Both parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture control requirements during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can MAX409BCSA+ be used as a direct replacement for MAX409BCSA in existing designs?

A: Yes. The MAX409BCSA+ is electrically and mechanically identical to the MAX409BCSA across all specified parameters. Pin configuration, electrical performance, and package dimensions are equivalent. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The MAX409BCSA is obsolete and no longer manufactured. The MAX409BCSA+ is an active product with ongoing production. For new designs or long-term supply requirements, the MAX409BCSA+ is the appropriate selection to ensure component availability and manufacturing continuity.

Q: Are there packaging differences between MAX409BCSA and MAX409BCSA+?

A: The primary packaging difference is the format: MAX409BCSA uses standard packaging, while MAX409BCSA+ uses tube packaging. Both are 8-SOIC surface mount packages with identical physical dimensions (0.154", 3.90mm Width). Packaging selection depends on assembly equipment compatibility and handling procedures.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition, not electrical performance. Both parts deliver identical electrical specifications. RoHS compliance is a regulatory and supply chain consideration, not a functional parameter.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by equivalence in amplifier type, circuit count, output type, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, supply voltage range, and operating temperature range. All these parameters must match exactly for valid substitution.

Q: Can MAX409BCSA be used in applications requiring RoHS compliance?

A: No. The MAX409BCSA is RoHS non-compliant. Applications subject to RoHS directives or customer RoHS requirements must use the MAX409BCSA+, which is ROHS3 compliant.

Q: Are there any thermal or environmental performance differences?

A: No. Both parts operate across the identical temperature range (0°C to 70°C) and carry the same moisture sensitivity level (MSL 1 - Unlimited). Environmental performance specifications are equivalent.