MAX303EPE+ Equivalent & Substitute Parts

Part Overview

The MAX303EPE+ is a 2-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a precision multiplexer/demultiplexer with 2:1 switching capability, designed for signal routing applications requiring low on-state resistance and minimal crosstalk. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Alternative equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	2
On-State Resistance (Max)	35Ω
Channel-to-Channel Matching (ΔRon)	500mΩ
Supply Voltage - Single (V+)	10V ~ 30V
Supply Voltage - Dual (V±)	±4.5V ~ 20V
Switch Time (Ton/Toff Max)	150ns / 100ns
Charge Injection	10pC
Channel Capacitance (CS(off)/CD(off))	12pF / 12pF
Leakage Current (IS(off) Max)	500pA
Crosstalk	-90dB @ 1MHz
Operating Temperature Range	-40°C ~ 85°C
Package Type	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX303EPE+ is determined by strict equivalence across all critical electrical and mechanical parameters. The primary substitution criteria include:

Electrical Parameters (Must Match Exactly):

Switch circuit configuration: SPDT
Multiplexer/demultiplexer ratio: 2:1
Number of circuits: 2
On-state resistance: 35Ω maximum
Channel-to-channel matching: 500mΩ
Supply voltage ranges: 10V ~ 30V (single) and ±4.5V ~ 20V (dual)
Switch timing: 150ns (Ton) / 100ns (Toff) maximum
Charge injection: 10pC
Channel capacitance: 12pF (both CS(off) and CD(off))
Leakage current: 500pA maximum
Crosstalk performance: -90dB @ 1MHz
Operating temperature: -40°C ~ 85°C

Mechanical Parameters (Must Match Exactly):

Package type: 16-DIP (0.300", 7.62mm)
Mounting type: Through Hole
Supplier device package: 16-PDIP

Compliance Requirements (Must Match):

RoHS3 compliance
MSL rating: 1 (Unlimited)

Based on the provided input data, the MAX303EPE+ is identified as its own direct equivalent with no additional substitute parts listed.

Parameter Comparison

Parameter	MAX303EPE+ (Main Part)	MAX303EPE+ (Direct Equivalent)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPDT	SPDT
Multiplexer Configuration	2:1	2:1
Number of Circuits	2	2
On-State Resistance (Max)	35Ω	35Ω
Channel-to-Channel Matching	500mΩ	500mΩ
Supply Voltage (Single)	10V ~ 30V	10V ~ 30V
Supply Voltage (Dual)	±4.5V ~ 20V	±4.5V ~ 20V
Switch Time (Ton/Toff)	150ns / 100ns	150ns / 100ns
Charge Injection	10pC	10pC
Channel Capacitance	12pF / 12pF	12pF / 12pF
Leakage Current (Max)	500pA	500pA
Crosstalk	-90dB @ 1MHz	-90dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

The MAX303EPE+ maintains Active product status with full RoHS3 compliance and REACH unaffected classification, confirming its suitability for current design implementations. The device carries MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements. Current inventory availability of 2018 pieces supports immediate procurement without lead-time constraints.

Component selection should be based on the exact electrical specifications provided: the 35Ω on-state resistance, 2:1 multiplexer configuration, and dual supply voltage capability (±4.5V ~ 20V or 10V ~ 30V single supply) must match application requirements precisely. The 16-DIP through-hole package format is fixed and non-negotiable for PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: What makes a part equivalent to the MAX303EPE+? A: A substitute must match all electrical parameters (switch type, resistance, voltage ranges, timing, capacitance, leakage, crosstalk), mechanical specifications (16-DIP package, through-hole mounting), and compliance certifications (RoHS3, MSL 1) exactly as specified.

Q: Can I use a different package variant of the MAX303? A: No. The MAX303EPE+ is specifically a 16-DIP through-hole package. Other package variants (such as surface-mount versions) are not equivalent and require full circuit redesign.

Q: Are there alternative manufacturers for this function? A: The provided data contains only Analog Devices Inc./Maxim Integrated equivalents. Cross-manufacturer substitution requires independent verification of all electrical and mechanical parameters against the original specification.

Q: What is the significance of the 35Ω on-state resistance specification? A: The 35Ω maximum on-state resistance directly affects signal attenuation and power dissipation in switching applications. Any substitute must maintain this exact specification to ensure circuit performance equivalence.

Q: Does the MSL 1 rating affect component handling? A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions. The component can be stored and handled under standard industrial conditions without special precautions or baking procedures.

Q: What does the -90dB crosstalk specification mean for circuit design? A: Crosstalk of -90dB @ 1MHz indicates the level of signal coupling between independent switch channels. This specification must be maintained in any equivalent part to ensure isolation performance in multi-channel applications.

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