PI5A4624TEX Equivalent & Substitute Parts

Part Overview

The PI5A4624TEX is a single-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by Diodes Incorporated in SOT-23-6 surface mount packaging. This device features 900mOhm on-state resistance and operates across a 1.8V to 5.5V supply voltage range, making it suitable for signal routing and multiplexing applications in low-voltage systems.

The PI5A4624TEX is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Key Parameters

Parameter	PI5A4624TEX
Manufacturer	Diodes Incorporated
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	1
On-State Resistance (Max)	900mOhm
Channel-to-Channel Matching (ΔRon)	30mOhm
Supply Voltage Range (V+)	1.8V ~ 5.5V
Switch Time Ton/Toff (Max)	35ns / 20ns
Charge Injection	40pC
Channel Capacitance (CS(off) / CD(off))	42pF / 83pF
Leakage Current IS(off) (Max)	2nA
Crosstalk	-57dB @ 1MHz
Operating Temperature Range	-40°C ~ 85°C
Package / Case	SOT-23-6
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the PI5A4624TEX is determined by the following mandatory parameters:

Switch circuit type: SPDT
Multiplexer configuration: 2:1
Number of circuits: 1
Package type: SOT-23-6 (or compatible variant)
Supply voltage range: Must encompass or be compatible with 1.8V ~ 5.5V
Operating temperature range: Must support -40°C ~ 85°C minimum
RoHS and REACH compliance status

The substitute parts identified below meet these core requirements. Variations in on-state resistance, switching speed, and charge injection are acceptable within the context of analog switch IC design, provided the application tolerances permit such variations.

Parameter Comparison

Parameter	PI5A4624TEX	MAX4561EUT+T	MAX4624EUT+T	MAX4624EZT+T	STG719STR
Manufacturer	Diodes Inc.	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	STMicroelectronics
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT
Multiplexer Configuration	2:1	2:1	2:1	2:1	2:1
Number of Circuits	1	1	1	1	1
On-State Resistance (Max)	900mOhm	70Ohm	1Ohm	1Ohm	4Ohm
Channel-to-Channel Matching (ΔRon)	30mOhm	500mOhm	60mOhm	60mOhm	100mOhm
Supply Voltage Range (V+)	1.8V ~ 5.5V	1.8V ~ 12V	1.8V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Switch Time Ton/Toff (Max)	35ns / 20ns	150ns / 80ns	50ns / 50ns	50ns / 50ns	7ns / 4.5ns (Typ)
Charge Injection	40pC	17pC	65pC	65pC	Not specified
Channel Capacitance (CS(off) / CD(off))	42pF / 83pF	20pF	32pF	32pF	19pF
Leakage Current IS(off) (Max)	2nA	500pA	2nA	2nA	250pA
Crosstalk	-57dB @ 1MHz	Not specified	-57dB @ 1MHz	-57dB @ 1MHz	-52dB @ 1MHz
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C
Package / Case	SOT-23-6	SOT-23-6	SOT-23-6	TSOT-23-6	SOT-23-6
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment and long-term availability.

MAX4624EUT+T and MAX4624EZT+T are direct functional equivalents to the PI5A4624TEX, offering identical supply voltage range (1.8V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and crosstalk performance (-57dB @ 1MHz). These parts feature significantly lower on-state resistance (1Ohm vs. 900mOhm), which reduces signal attenuation in switching applications. The primary difference is packaging: MAX4624EUT+T uses Cut Tape & Digi-Reel format, while MAX4624EZT+T uses Tape & Reel format with a thin SOT-23-6 (TSOT-23-6) package variant.

STG719STR (STMicroelectronics) provides the lowest on-state resistance (4Ohm) and fastest switching times (7ns/4.5ns typical), with extended operating temperature range (-55°C ~ 125°C). This part is suitable for applications requiring superior switching speed and thermal performance beyond the original specification.

MAX4561EUT+T (Analog Devices/Maxim) offers the widest supply voltage range (1.8V ~ 12V) and lowest leakage current (500pA), making it suitable for systems requiring extended voltage operation. However, its on-state resistance (70Ohm) and switching times (150ns/80ns) are significantly higher than the original part, requiring application-level verification.

Frequently Asked Questions (FAQ)

Q: Can MAX4624EUT+T and MAX4624EZT+T be used interchangeably with PI5A4624TEX?

A: Yes. Both parts are functionally equivalent, sharing identical supply voltage range, operating temperature, and crosstalk specifications. The difference is packaging format: MAX4624EUT+T is supplied in Cut Tape & Digi-Reel, while MAX4624EZT+T is supplied in Tape & Reel with thin SOT-23-6 packaging. Select based on your procurement and assembly requirements.

Q: What is the impact of lower on-state resistance in substitute parts?

A: Lower on-state resistance (1Ohm for MAX4624 series vs. 900mOhm for PI5A4624TEX) reduces signal attenuation and power dissipation during switching. This is generally beneficial and does not require circuit redesign. Applications with high-impedance signal paths may see improved signal integrity.

Q: Is STG719STR suitable for all applications using PI5A4624TEX?

A: STG719STR is suitable for applications where faster switching speed and extended temperature range (-55°C ~ 125°C) are beneficial or required. However, verify that your application can tolerate the slightly higher on-state resistance (4Ohm) and lower crosstalk performance (-52dB vs. -57dB @ 1MHz).

Q: What are the packaging considerations when selecting a substitute?

A: All substitute parts use SOT-23-6 or compatible variants (TSOT-23-6 for MAX4624EZT+T). Verify that your PCB layout and assembly equipment support the specific package variant. TSOT-23-6 is a thinner variant of SOT-23-6 and may require assembly process adjustments.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All identified substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Which substitute part offers the best overall compatibility?

A: MAX4624EUT+T and MAX4624EZT+T provide the closest functional match to PI5A4624TEX, with identical electrical specifications for supply voltage, operating temperature, and crosstalk. Select based on your packaging and procurement format preference.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message