PS383CSE Equivalent & Substitute Parts

Part Overview

The PS383CSE is a 2-circuit SPDT IC switch manufactured by Diodes Incorporated, designed for analog signal switching applications in 16-SOIC surface mount packaging. This part operates with single supply voltage (3V to 15V) or dual supply (±3V to ±8V) and features 30Ohm on-state resistance with 2:1 multiplexer/demultiplexer functionality. The PS383CSE is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT (Single Pole Double Throw)
Number of Circuits	2
Multiplexer/Demultiplexer Circuit	2:1
On-State Resistance (Max)	30Ohm
Voltage Supply - Single (V+)	3V ~ 15V
Voltage Supply - Dual (V±)	±3V ~ 8V
Switch Time (Ton/Toff Max)	130ns / 75ns
Charge Injection	2pC
Channel Capacitance (CS(off)/CD(off))	12pF / 12pF
Current - Leakage (IS(off) Max)	100pA
Crosstalk	-90dB @ 1MHz
Operating Temperature	0°C ~ 70°C
Package / Case	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PS383CSE is determined by the following critical parameters:

Functional Equivalence Requirements:

Switch circuit configuration: SPDT
Number of circuits: 2
Multiplexer/demultiplexer circuit: 2:1
Package type: 16-SOIC surface mount

Electrical Compatibility Criteria:

Supply voltage ranges must encompass or match the original specification (3V ~ 15V single supply, ±3V ~ 8V dual supply)
On-state resistance must not exceed application requirements
Channel-to-channel matching (ΔRon) must be acceptable for signal integrity
Leakage current specifications must meet application demands
Crosstalk performance at 1MHz must be maintained

Environmental & Compliance Criteria:

RoHS3 compliance required
MSL rating of 1 (Unlimited) preferred
Operating temperature range must support application requirements

Substitute parts are grouped into two categories based on electrical performance:

Category A - Direct Electrical Substitutes (MAX383 Series): Parts with 35Ohm on-state resistance, matching supply voltage ranges, and identical 2:1 SPDT configuration. These parts maintain functional compatibility with slightly higher on-state resistance.

Category B - Extended Performance Substitutes (MAX4632 Series): Parts with 85Ohm on-state resistance and extended supply voltage range (9V ~ 36V single, ±4.5V ~ 18V dual). These are suitable only for applications where higher on-state resistance is acceptable and higher supply voltages are required.

Parameter Comparison

Parameter	PS383CSE	MAX383CSE+	MAX383CSE+T	MAX383ESE+	MAX383ESE+T	MAX4632CSE+	MAX4632CSE+T	MAX4632ESE+
Manufacturer	Diodes Inc.	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Number of Circuits	2	2	2	2	2	2	2	2
Multiplexer/Demultiplexer	2:1	2:1	2:1	2:1	2:1	2:1	2:1	2:1
On-State Resistance (Max)	30Ohm	35Ohm	35Ohm	35Ohm	35Ohm	85Ohm	85Ohm	85Ohm
Channel-to-Channel Matching (ΔRon)	200mOhm	500mOhm	500mOhm	500mOhm	500mOhm	3Ohm	3Ohm	3Ohm
Voltage - Supply, Single (V+)	3V ~ 15V	3V ~ 15V	3V ~ 15V	3V ~ 15V	3V ~ 15V	9V ~ 36V	9V ~ 36V	9V ~ 36V
Voltage - Supply, Dual (V±)	±3V ~ 8V	±3V ~ 8V	±3V ~ 8V	±3V ~ 8V	±3V ~ 8V	±4.5V ~ 18V	±4.5V ~ 18V	±4.5V ~ 18V
Switch Time (Ton Max)	130ns	175ns	175ns	175ns	175ns	150ns	150ns	150ns
Switch Time (Toff Max)	75ns	100ns	100ns	100ns	100ns	100ns	100ns	100ns
Charge Injection	2pC	2pC	2pC	2pC	2pC	5pC	5pC	5pC
Channel Capacitance (CS(off))	12pF	12pF	12pF	12pF	12pF	18pF	18pF	18pF
Channel Capacitance (CD(off))	12pF	12pF	12pF	12pF	12pF	18pF	18pF	18pF
Current - Leakage (IS(off) Max)	100pA	200pA	200pA	200pA	200pA	500pA	500pA	500pA
Crosstalk @ 1MHz	-90dB	-90dB	-90dB	-90dB	-90dB	-66dB	-66dB	-66dB
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.295", 7.50mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)
Packaging Type	-	Tube	Tape & Reel	Tube	Tape & Reel	Tube	Tape & Reel	Tube
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Substitutes):

The MAX383 series (MAX383CSE+, MAX383CSE+T, MAX383ESE+, MAX383ESE+T) provides the closest functional equivalence to the PS383CSE. These parts maintain identical supply voltage ranges (3V ~ 15V single, ±3V ~ 8V dual), identical 2:1 SPDT configuration, and comparable electrical performance. The 35Ohm on-state resistance represents a 5Ohm increase from the original 30Ohm specification, which is acceptable in most analog switching applications. All MAX383 variants are active products with ROHS3 compliance and MSL 1 rating.

Selection between MAX383 variants depends on packaging requirements and operating temperature range:

MAX383CSE+ and MAX383ESE+ are supplied in Tube packaging
MAX383CSE+T and MAX383ESE+T are supplied in Tape & Reel (TR) packaging
MAX383ESE+ and MAX383ESE+T support extended operating temperature range (-40°C ~ 85°C) compared to the standard 0°C ~ 70°C range

For Extended Supply Voltage Applications:

The MAX4632 series (MAX4632CSE+, MAX4632CSE+T, MAX4632ESE+) is suitable only for applications requiring higher supply voltages (9V ~ 36V single, ±4.5V ~ 18V dual). The 85Ohm on-state resistance and reduced crosstalk performance (-66dB vs -90dB) make this series unsuitable as a direct replacement for standard 3V ~ 15V supply applications. Use MAX4632 variants only when higher supply voltage operation is a design requirement.

Compliance & Availability:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage requirements. Active product status for all Analog Devices/Maxim variants ensures long-term availability and supply chain stability compared to the obsolete PS383CSE.

Frequently Asked Questions (FAQ)

Q: Can MAX383CSE+ directly replace PS383CSE in existing designs?

A: Yes, MAX383CSE+ is functionally compatible with PS383CSE for applications operating within 3V ~ 15V single supply or ±3V ~ 8V dual supply ranges. The 5Ohm increase in on-state resistance (35Ohm vs 30Ohm) is within acceptable tolerance for most analog switching circuits. Physical package dimensions differ (0.154" vs 0.295" width), requiring PCB layout verification.

Q: What is the difference between MAX383CSE+ and MAX383ESE+?

A: Both parts are electrically identical with 35Ohm on-state resistance and identical supply voltage ranges. The primary difference is operating temperature range: MAX383CSE+ operates 0°C ~ 70°C, while MAX383ESE+ operates -40°C ~ 85°C. Select MAX383ESE+ for applications requiring extended temperature operation or industrial environments.

Q: Why should I not use MAX4632 as a replacement for PS383CSE?

A: MAX4632 series is not a direct replacement due to three critical differences: (1) on-state resistance of 85Ohm versus 30Ohm, (2) supply voltage range of 9V ~ 36V versus 3V ~ 15V, and (3) reduced crosstalk performance of -66dB versus -90dB. Use MAX4632 only when your application specifically requires higher supply voltages and can tolerate higher on-state resistance.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging (MAX383CSE+, MAX383ESE+, MAX4632CSE+, MAX4632ESE+) is suitable for lower-volume applications and manual assembly. Tape & Reel packaging (MAX383CSE+T, MAX383ESE+T, MAX4632CSE+T, MAX4632ESE+T) is designed for automated pick-and-place assembly and higher-volume production. Both packaging types contain identical die and electrical specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed (MAX383 and MAX4632 series) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original PS383CSE.

Q: What is the impact of channel-to-channel matching (ΔRon) on substitution?

A: PS383CSE specifies 200mOhm channel-to-channel matching, while MAX383 series specifies 500mOhm. This 2.5x difference may impact applications requiring precise channel balance in stereo or differential switching circuits. MAX4632 series offers superior matching at 3Ohm, suitable for precision applications if supply voltage requirements align.

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