MAX303ESE Equivalent & Substitute Parts

Part Overview

The MAX303ESE is a 2-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 2:1 multiplexer/demultiplexer with 35Ohm on-state resistance, designed for signal routing and switching applications in analog systems. The MAX303ESE 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, voltage ratings, and package specifications.

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)	35Ohm
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff)	150ns, 100ns
Operating Temperature Range	-40°C ~ 85°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the MAX303ESE is determined by the following critical parameters:

Primary Compatibility Criteria:

Switch circuit configuration: SPDT
Number of circuits: 2
Multiplexer/demultiplexer circuit: 2:1
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Mounting type: Surface Mount
Operating temperature range: -40°C ~ 85°C

Secondary Compatibility Criteria:

On-state resistance (Max): 35Ohm or lower
Voltage - Supply, Single (V+): Must support 10V ~ 30V range
Voltage - Supply, Dual (V±): Must support ±4.5V ~ 20V range
Switch time characteristics: 150ns (Ton), 100ns (Toff) or faster

Substitute parts are grouped into two categories:

Direct Functional Equivalent: MAX303ESE+ maintains identical electrical specifications and differs only in product status (Active vs. Obsolete) and packaging format (Tube).

Cross-Manufacturer Equivalent: DG403DYZ and DG403DYZ-T (Renesas Electronics) provide functional substitution with allowable parameter variations. These parts maintain the same circuit topology and package but feature higher on-state resistance (45Ohm vs. 35Ohm) and expanded voltage supply ranges, making them suitable for applications where the MAX303ESE specifications are met or exceeded.

Parameter Comparison

Parameter	MAX303ESE (Main)	MAX303ESE+	DG403DYZ	DG403DYZ-T
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Renesas Electronics Corporation	Renesas Electronics Corporation
Product Status	Obsolete	Active	Active	Active
Switch Circuit	SPDT	SPDT	SPDT	SPDT
Number of Circuits	2	2	2	2
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1	2:1
On-State Resistance (Max)	35Ohm	35Ohm	45Ohm	45Ohm
Channel-to-Channel Matching (ΔRon)	500mOhm	500mOhm	3Ohm	3Ohm
Voltage - Supply, Single (V+)	10V ~ 30V	10V ~ 30V	5V ~ 34V	5V ~ 34V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V	±5V ~ 17V	±5V ~ 17V
Switch Time (Ton, Toff) (Max)	150ns, 100ns	150ns, 100ns	150ns, 100ns	150ns, 100ns
Charge Injection	10pC	10pC	60pC	60pC
Channel Capacitance (CS(off), CD(off))	12pF, 12pF	12pF, 12pF	12pF, 12pF	12pF, 12pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	500pA	500pA
Crosstalk	-90dB @ 1MHz	-90dB @ 1MHz	-90dB @ 1MHz	-90dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

MAX303ESE+ (Direct Replacement): MAX303ESE+ is the primary substitute for MAX303ESE applications. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications. MAX303ESE+ holds Active product status, ensuring long-term availability and supply chain continuity. The part is ROHS3 compliant, addressing regulatory requirements for new designs. Selection of MAX303ESE+ is appropriate for direct substitution in existing MAX303ESE designs without circuit modification.

DG403DYZ and DG403DYZ-T (Cross-Manufacturer Alternatives): DG403DYZ and DG403DYZ-T, manufactured by Renesas Electronics Corporation, provide functional substitution for applications where the MAX303ESE specifications are satisfied by the Renesas device parameters. Both parts maintain identical switch circuit topology (SPDT, 2:1 multiplexer), package format (16-SOIC), and operating temperature range (-40°C ~ 85°C). The DG403 series features higher on-state resistance (45Ohm vs. 35Ohm) and increased charge injection (60pC vs. 10pC), which are allowable variations for applications not requiring the lower resistance or charge injection specifications of the MAX303ESE. Both DG403 variants are ROHS3 compliant and Active products. DG403DYZ-T is supplied in Cut Tape (CT) & Digi-Reel® packaging, while DG403DYZ is supplied in Tube packaging. Selection between these variants depends on packaging and handling requirements for production processes.

Frequently Asked Questions (FAQ)

Q: Can MAX303ESE+ be used as a direct replacement for MAX303ESE? A: Yes. MAX303ESE+ is manufactured by the same company (Analog Devices Inc./Maxim Integrated) and maintains identical electrical specifications including on-state resistance (35Ohm), voltage supply ranges (10V ~ 30V single, ±4.5V ~ 20V dual), and switch timing characteristics (150ns Ton, 100ns Toff). The primary differences are product status (Active vs. Obsolete) and packaging format (Tube vs. standard packaging). No circuit modifications are required.

Q: What are the key differences between MAX303ESE and DG403DYZ? A: The primary differences are manufacturer (Analog Devices vs. Renesas Electronics), on-state resistance (35Ohm vs. 45Ohm), channel-to-channel matching (500mOhm vs. 3Ohm), charge injection (10pC vs. 60pC), and voltage supply ranges. DG403DYZ supports expanded single supply voltage range (5V ~ 34V vs. 10V ~ 30V) but narrower dual supply range (±5V ~ 17V vs. ±4.5V ~ 20V). Both parts maintain identical switch circuit topology, package format, and operating temperature range.

Q: Are DG403DYZ and DG403DYZ-T electrically identical? A: Yes. DG403DYZ and DG403DYZ-T are electrically identical. The difference is packaging format: DG403DYZ is supplied in Tube packaging, while DG403DYZ-T is supplied in Cut Tape (CT) & Digi-Reel® packaging. Selection depends on production handling and assembly process requirements.

Q: Does the higher on-state resistance of DG403DYZ affect circuit performance? A: The DG403DYZ on-state resistance of 45Ohm is higher than the MAX303ESE specification of 35Ohm. Applications must verify that the increased resistance does not exceed circuit requirements for signal attenuation, impedance matching, or switching speed. The identical switch timing characteristics (150ns Ton, 100ns Toff) ensure switching speed compatibility.

Q: Are all substitute parts RoHS compliant? A: MAX303ESE is RoHS non-compliant. MAX303ESE+, DG403DYZ, and DG403DYZ-T are all ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Q: What is the moisture sensitivity difference between these parts? A: MAX303ESE and MAX303ESE+ have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions. DG403DYZ and DG403DYZ-T have MSL 3 (168 Hours), requiring storage and handling within specified moisture conditions. Applications must implement appropriate moisture control procedures for DG403 variants during storage and assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message