PS393CSE Equivalent & Substitute Parts

Part Overview

The PS393CSE is a 4-circuit SPST-NO/NC analog switch IC manufactured by Diodes Incorporated in 16-SOIC surface mount packaging. This part operates with single supply voltage (3V to 15V) or dual supply (±3V to ±8V) and features 45Ohm on-state resistance with 100MHz bandwidth capability. The PS393CSE is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across switching characteristics, circuit topology, and package form factor while meeting current product availability and compliance standards.

Substiute Parts

PS393CSE

Diodes IncorporatedIn Stock: 1200PS393CSE Datasheet

Current PartRFQ

MAX393CSE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2089MAX393CSE+ Datasheet

MFR RecommendedRFQ

MAX393CSE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2324MAX393CSE+T Datasheet

MFR RecommendedRFQ

MAX393ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1224MAX393ESE+ Datasheet

MFR RecommendedRFQ

MAX393ESE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3365MAX393ESE+T Datasheet

MFR RecommendedRFQ

MAX4513ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 678MAX4513ESE+ Datasheet

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MAX4513ESE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 842MAX4513ESE+T Datasheet

MFR RecommendedRFQ

MAX4713ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1153MAX4713ESE+ Datasheet

MFR RecommendedRFQ

MAX4713ESE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 909MAX4713ESE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PS393CSE is determined by strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following parameters:

Core Substitution Criteria:

• Switch circuit topology: SPST - NO/NC (4 circuits, 1:1 multiplexer configuration)
• On-state resistance range and channel matching characteristics
• Supply voltage compatibility (single and dual supply ranges)
• Switch timing parameters (Ton, Toff)
• Leakage current specifications
• 16-SOIC surface mount package form factor
• Operating temperature range requirements
• Compliance certifications (ROHS3, REACH Unaffected)

Substitute parts are grouped into three functional categories based on on-state resistance specifications:

Category 1 - Lower Resistance (25Ohm): MAX4713ESE+, MAX4713ESE+T Category 2 - Equivalent Resistance (35Ohm): MAX393CSE+, MAX393CSE+T, MAX393ESE+, MAX393ESE+T Category 3 - Higher Resistance (160Ohm): MAX4513ESE+, MAX4513ESE+T

Category 2 parts provide the closest electrical equivalence to the PS393CSE with 35Ohm on-state resistance. Category 1 parts offer lower resistance performance suitable for applications requiring reduced signal attenuation. Category 3 parts operate at higher supply voltages and are suitable only for applications with compatible voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

The MAX393 series (MAX393CSE+, MAX393CSE+T, MAX393ESE+, MAX393ESE+T) provides the closest functional equivalence to the PS393CSE. These parts maintain identical switch circuit topology, circuit count, and multiplexer configuration. The 35Ohm on-state resistance is lower than the PS393CSE's 45Ohm specification, resulting in improved signal integrity and reduced insertion loss. All MAX393 variants are active products with ROHS3 compliance and REACH Unaffected status, ensuring long-term availability and regulatory compliance.

The MAX393CSE+ and MAX393CSE+T variants operate within the PS393CSE's original temperature range (0°C to 70°C), while MAX393ESE+ and MAX393ESE+T extend the operating range to -40°C to 85°C for applications requiring broader temperature performance.

Secondary Substitutes (Lower Resistance Performance):

The MAX4713 series (MAX4713ESE+, MAX4713ESE+T) offers 25Ohm on-state resistance with improved channel matching (200mOhm versus 500mOhm). These parts are suitable for applications where lower signal attenuation is critical. The MAX4713 series operates at lower supply voltages (2.7V to 11V single supply, ±2.7V to ±5.5V dual supply) compared to the PS393CSE, requiring circuit design verification before substitution.

Alternative Substitutes (Higher Voltage Applications):

The MAX4513 series (MAX4513ESE+, MAX4513ESE+T) operates at higher supply voltages (9V to 36V single supply, ±4.5V to ±18V dual supply) with 160Ohm on-state resistance. These parts are suitable only for applications with compatible higher voltage requirements and are not direct replacements for standard 3V to 15V supply designs.

Packaging Considerations:

All substitute parts are available in 16-SOIC surface mount packages. The PS393CSE uses a 0.295" (7.50mm) wide package body, while all substitute parts use a narrower 0.154" (3.90mm) wide package body. PCB layout modifications may be required to accommodate the different package dimensions. Tube and Tape & Reel (TR) packaging options are available for all substitute parts to match production requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX393CSE+ directly replace PS393CSE in existing designs?

A: The MAX393CSE+ maintains functional compatibility with the PS393CSE across all critical switching parameters: SPST-NO/NC topology, 4-circuit configuration, 1:1 multiplexer operation, identical supply voltage ranges, and matching switch timing specifications. The lower on-state resistance (35Ohm versus 45Ohm) improves performance. However, the narrower 16-SOIC package body (0.154" versus 0.295") requires PCB layout verification to confirm pad spacing compatibility.

Q: What is the difference between MAX393CSE+ and MAX393ESE+ variants?

A: Both parts feature identical electrical specifications and 35Ohm on-state resistance. The primary difference is operating temperature range: MAX393CSE+ operates from 0°C to 70°C, while MAX393ESE+ operates from -40°C to 85°C. Select MAX393ESE+ for applications requiring extended temperature performance. Both are available in Tube (MAX393CSE+, MAX393ESE+) and Tape & Reel (MAX393CSE+T, MAX393ESE+T) packaging.

Q: Why does the PS393CSE show 100MHz bandwidth while substitute parts do not specify this parameter?

A: The -3dB bandwidth specification is not provided in the substitute part datasheets. This does not indicate reduced bandwidth performance but rather reflects different datasheet documentation practices between manufacturers. Electrical performance characteristics including switch timing (Ton, Toff), charge injection, and channel capacitance are specified for all parts and determine signal fidelity.

Q: Are MAX4713 parts suitable replacements for PS393CSE?

A: The MAX4713 series maintains the same switch topology and circuit count but operates at lower supply voltages (2.7V to 11V single supply versus 3V to 15V for PS393CSE). The 25Ohm on-state resistance provides superior performance for low-signal-level applications. Substitution requires verification that the application's supply voltage range is compatible with the MAX4713's lower voltage limits.

Q: What is the significance of the different package body widths?

A: The PS393CSE uses a 0.295" (7.50mm) wide 16-SOIC package, while all substitute parts use a 0.154" (3.90mm) wide 16-SOIC package. Both are standard 16-SOIC form factors with identical pin counts and spacing. The narrower body width of substitute parts may require PCB layout adjustments to confirm pad alignment and clearance compatibility with existing designs.

Q: Are all substitute parts ROHS3 compliant and REACH Unaffected?

A: Yes. All substitute parts listed (MAX393 series, MAX4713 series, MAX4513 series) are ROHS3 compliant and REACH Unaffected, matching the PS393CSE's regulatory compliance status. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special moisture handling requirements.

Q: Can MAX4513 parts replace PS393CSE?

A: The MAX4513 series is not a direct replacement. While it maintains the same switch topology and circuit count, it operates at significantly higher supply voltages (9V to 36V single supply, ±4.5V to ±18V dual supply) and features 160Ohm on-state resistance. Substitution is only appropriate for applications specifically designed for higher voltage operation.