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PS4066AESD Equivalent & Substitute Parts
Part Overview
The PS4066AESD is a 4-circuit SPST-NO analog switch IC manufactured by Diodes Incorporated in 14-SOIC surface mount packaging. This component functions as a single-pole single-throw switch array with 45Ohm on-state resistance and operates across a 3V to 16V supply range. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while meeting current design requirements and compliance standards.
Substiute Parts
Key Parameters
| Parameter | PS4066AESD |
|---|---|
| Manufacturer | Diodes Incorporated |
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 4 |
| Multiplexer/Demultiplexer Circuit | 1:1 |
| On-State Resistance (Max) | 45Ohm |
| Voltage - Supply, Single (V+) | 3V ~ 16V |
| Switch Time Ton (Max) | 100ns |
| Switch Time Toff (Max) | 75ns |
| -3dB Bandwidth | 100MHz |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | -40°C ~ 85°C |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution of the PS4066AESD is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Switch circuit type: SPST - NO (single-pole single-throw, normally open)
- Number of circuits: 4
- Multiplexer configuration: 1:1
- Package type: 14-SOIC surface mount
- Pin count and footprint: 14-pin SOIC
Electrical Operating Range:
- Supply voltage must encompass or overlap the 3V to 16V range of the original part
- On-state resistance tolerance must be acceptable for the application
- Switching speed (Ton, Toff) and bandwidth must meet or exceed application requirements
Compliance & Status:
- Active product status preferred for long-term availability
- RoHS3 compliance required for new designs
- Operating temperature range must support the application environment
Substitute parts are grouped by their supply voltage operating range and on-state resistance characteristics, as these parameters directly determine functional equivalence and circuit performance.
Parameter Comparison
| Part Number | Manufacturer | On-State Resistance (Max) | Voltage - Supply (V+) | Switch Time Ton / Toff (Max) | -3dB Bandwidth | Operating Temperature | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| PS4066AESD | Diodes Incorporated | 45Ohm | 3V ~ 16V | 100ns / 75ns | 100MHz | -40°C ~ 85°C | Obsolete | RoHS non-compliant |
| 74HC4066D,653 | Nexperia USA Inc. | 95Ohm | 2V ~ 10V | 30ns / 20ns | 200MHz | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74HCT4066D,118 | Nexperia USA Inc. | 20Ohm (Typ) | 4.5V ~ 5.5V | 44ns / 30ns | 200MHz | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74LV4066D,118 | Nexperia USA Inc. | 35Ohm | 1V ~ 6V | 16ns / 28ns | 200MHz | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74LVC4066D,118 | Nexperia USA Inc. | 10Ohm | 1.65V ~ 5.5V | 3.9ns / 5ns | 500MHz | -40°C ~ 125°C | Active | ROHS3 Compliant |
| CD74HCT4066M96 | Texas Instruments | 70Ohm | 4.5V ~ 5.5V | Not specified | 200MHz | -55°C ~ 125°C | Active | ROHS3 Compliant |
| CD74HCT4066MT | Texas Instruments | 70Ohm | 4.5V ~ 5.5V | Not specified | 200MHz | -40°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| CD74HCT4066QM96Q1 | Texas Instruments | 95Ohm | 4.5V ~ 5.5V | 24ns / 35ns | 200MHz | -40°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| D24066QM96G4Q1 | Texas Instruments | 95Ohm | 4.5V ~ 5.5V | 24ns / 35ns | 200MHz | -40°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| HEF4066BT,653 | Nexperia USA Inc. | 155Ohm | 3V ~ 15V | Not specified | 90MHz | -40°C ~ 125°C | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For 3V to 16V Supply Range Applications: The HEF4066BT,653 (Nexperia) maintains the widest supply voltage range (3V ~ 15V) closest to the original PS4066AESD specification. This part is active, RoHS3 compliant, and suitable for designs requiring broad voltage tolerance. On-state resistance of 155Ohm is higher than the original 45Ohm, requiring circuit validation for signal integrity.
For 5V Single Supply Applications: The 74HCT4066D,118 (Nexperia) operates at 4.5V ~ 5.5V with 20Ohm typical on-state resistance and active product status. This is the lowest resistance option in the 5V family and provides improved switching performance (44ns/30ns) with RoHS3 compliance.
For Low Voltage and High-Speed Applications: The 74LVC4066D,118 (Nexperia) supports 1.65V ~ 5.5V operation with the lowest on-state resistance (10Ohm) and fastest switching times (3.9ns/5ns). This part offers 500MHz bandwidth and is suitable for modern low-voltage digital systems with RoHS3 compliance.
For Automotive and Extended Temperature Applications: The CD74HCT4066QM96Q1 (Texas Instruments) carries AEC-Q100 automotive qualification and operates across -40°C ~ 125°C. This part is designated for automotive-grade designs requiring extended temperature performance.
All recommended substitutes are RoHS3 compliant and carry active or last-time-buy status, addressing the obsolescence of the original PS4066AESD.
Frequently Asked Questions (FAQ)
Q: Can the 74LVC4066D,118 replace the PS4066AESD in all applications? A: The 74LVC4066D,118 is functionally equivalent in circuit topology (4-circuit SPST-NO switch array in 14-SOIC package). However, its supply voltage range (1.65V ~ 5.5V) does not cover the original part's upper limit of 16V. Use this substitute only in applications operating at 5.5V or below.
Q: Why does the HEF4066BT,653 have higher on-state resistance than the original? A: The HEF4066BT,653 is a CMOS logic family part with different semiconductor process technology than the PS4066AESD. The 155Ohm resistance is a characteristic of this family. Circuit designs must account for this higher resistance in signal path calculations and switching speed analysis.
Q: Are all substitute parts pin-compatible with the PS4066AESD? A: All listed substitutes use the 14-SOIC package with identical pin count and footprint. Pin-level functional compatibility (SPST-NO switch array configuration) is maintained across all substitutes. Verify specific pin assignments in device datasheets for your application.
Q: What is the difference between 74HCT4066D,118 and 74HC4066D,653? A: The 74HCT4066D,118 operates at 4.5V ~ 5.5V (TTL-compatible supply) with 20Ohm on-state resistance. The 74HC4066D,653 operates at 2V ~ 10V (CMOS supply range) with 95Ohm on-state resistance. Select based on your system supply voltage and impedance requirements.
Q: Can I use CD74HCT4066M96 in place of CD74HCT4066MT? A: Both parts are functionally identical with 70Ohm on-state resistance and 4.5V ~ 5.5V supply range. The primary difference is packaging: CD74HCT4066M96 is supplied in Cut Tape & Digi-Reel format, while CD74HCT4066MT is supplied in Tape & Reel format. Select based on your procurement and assembly requirements.
Q: Is RoHS3 compliance mandatory for my design? A: RoHS3 compliance is required for products sold in the European Union and many other regulated markets. All active substitute parts listed carry RoHS3 compliance. The original PS4066AESD is RoHS non-compliant and unsuitable for new designs targeting regulated markets.
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