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MAX335ENG Equivalent & Substitute Parts
Part Overview
The MAX335ENG is an 8-circuit IC switch with SPST-NO (Single Pole Single Throw - Normally Open) configuration, manufactured by Analog Devices Inc./Maxim Integrated. This component operates as a 1:1 multiplexer/demultiplexer with 150Ohm on-state resistance and is housed in a 24-DIP package for through-hole mounting applications.
The MAX335ENG is classified as obsolete, which necessitates identification of equivalent substitute components for new designs or ongoing production requirements. Active alternatives with identical electrical and mechanical specifications are available to ensure design continuity and supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 8 |
| Multiplexer/Demultiplexer Configuration | 1:1 |
| On-State Resistance (Max) | 150Ohm |
| Dual Supply Voltage Range | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) | 400ns, 400ns |
| Channel Capacitance (CS(off), CD(off)) | 2pF, 2pF |
| Leakage Current (IS(off)) Max | 1nA |
| Crosstalk | -100dB @ 100kHz |
| Operating Temperature Range | -40°C ~ 85°C |
| Package Type | 24-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution of the MAX335ENG is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:
- Switch circuit topology (SPST - NO configuration)
- Circuit count (8 circuits)
- Multiplexer ratio (1:1)
- On-state resistance (150Ohm maximum)
- Supply voltage range (±4.5V ~ 20V dual supply)
- Switching performance (400ns maximum for both Ton and Toff)
- Channel capacitance values (2pF for both CS(off) and CD(off))
- Leakage current specification (1nA maximum)
- Crosstalk performance (-100dB @ 100kHz)
- Operating temperature range (-40°C ~ 85°C)
- Physical package (24-DIP with 0.300" pitch, 7.62mm)
- Through-hole mounting compatibility
Only components meeting all these criteria qualify as direct substitutes for the MAX335ENG.
Parameter Comparison
| Parameter | MAX335ENG (Main Part) | MAX335ENG+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Switch Circuit | SPST - NO | SPST - NO |
| Number of Circuits | 8 | 8 |
| Multiplexer Configuration | 1:1 | 1:1 |
| On-State Resistance (Max) | 150Ohm | 150Ohm |
| Dual Supply Voltage | ±4.5V ~ 20V | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) | 400ns, 400ns | 400ns, 400ns |
| Channel Capacitance (CS(off), CD(off)) | 2pF, 2pF | 2pF, 2pF |
| Leakage Current (IS(off)) Max | 1nA | 1nA |
| Crosstalk | -100dB @ 100kHz | -100dB @ 100kHz |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 24-DIP (0.300", 7.62mm) | 24-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Packaging | Not specified | Tube |
Engineering Selection Recommendations
The MAX335ENG+ serves as the direct substitute for the obsolete MAX335ENG. Both components are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications across all critical parameters.
The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX335ENG is classified as obsolete, while the MAX335ENG+ maintains active product status with current manufacturing support. The MAX335ENG+ additionally carries ROHS3 compliance certification, whereas the original MAX335ENG is RoHS non-compliant.
For new designs or production transitions, the MAX335ENG+ is the appropriate selection. Both components are pin-compatible and functionally equivalent, with identical performance characteristics in 24-DIP through-hole packages. The MAX335ENG+ is available in tube packaging and maintains full inventory availability.
Frequently Asked Questions (FAQ)
Q: Are MAX335ENG and MAX335ENG+ pin-compatible?
A: Yes. Both components use the 24-DIP package with identical pinout and 0.300" (7.62mm) pitch. Direct socket substitution is possible without circuit board modifications.
Q: What is the primary reason to transition from MAX335ENG to MAX335ENG+?
A: The MAX335ENG is obsolete with no ongoing manufacturing. The MAX335ENG+ is an active product with current production support, ensuring long-term supply chain availability and compliance with modern regulatory standards.
Q: Do the electrical specifications differ between these parts?
A: No. Both components maintain identical electrical performance: 8-circuit SPST-NO configuration, 150Ohm on-state resistance, ±4.5V ~ 20V dual supply operation, 400ns switching time, and -100dB crosstalk at 100kHz.
Q: What is the difference in RoHS compliance?
A: The MAX335ENG is RoHS non-compliant. The MAX335ENG+ is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.
Q: Can MAX335ENG+ be used in existing designs without re-qualification?
A: Electrical and mechanical compatibility is complete. However, design documentation and compliance certifications should be updated to reflect the active product status and ROHS3 compliance of the MAX335ENG+.
Q: What packaging options are available for MAX335ENG+?
A: The MAX335ENG+ is supplied in tube packaging. Both components are through-hole mounted in 24-DIP packages.
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