PI5A3167CCEX Equivalent & Substitute Parts

Part Overview

The PI5A3167CCEX is a single-circuit SPST-NC (Normally Closed) analog switch manufactured by Diodes Incorporated, designed for low-impedance signal routing applications. This component features a 1.2Ohm on-state resistance and operates across a 1.65V to 5.5V supply voltage range. The part is classified as Last Time Buy, indicating discontinued production status. Identifying qualified substitute components is essential for design continuity and long-term supply chain planning.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPST - NC (Single Pole Single Throw - Normally Closed)
Multiplexer/Demultiplexer Circuit	1:1
Number of Circuits	1
On-State Resistance (Max)	1.2Ohm
Supply Voltage Range	1.65V ~ 5.5V (Single Supply)
Switch Time (Ton, Toff)	6ns, 7.5ns
Operating Temperature Range	-40°C ~ 85°C
Package Type	5-TSSOP, SC-70-5, SOT-353
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the PI5A3167CCEX is determined by the following mandatory parameters:

Switch circuit topology: SPST - NC configuration
Circuit count: Single circuit (1:1 multiplexer/demultiplexer)
Supply voltage compatibility: 1.65V ~ 5.5V range
Package compatibility: 5-TSSOP, SC-70-5, SOT-353 form factor
Operating temperature range: -40°C ~ 85°C minimum
Regulatory compliance: ROHS3 and REACH requirements

The identified substitute parts meet these core requirements. Variations in on-state resistance, switch timing, and leakage current are acceptable within the functional envelope of this component category, provided the primary electrical and mechanical parameters align.

Parameter Comparison

Parameter	PI5A3167CCEX (Diodes)	TS5A3167DCKR (Texas Instruments)	TC7SB66CFU,LF(CT (Toshiba)
Manufacturer	Diodes Incorporated	Texas Instruments	Toshiba Semiconductor and Storage
Switch Circuit	SPST - NC	SPST - NC	SPST - NC
Multiplexer/Demultiplexer	1:1	1:1	1:1
Number of Circuits	1	1	1
On-State Resistance (Max)	1.2Ohm	900mOhm	7Ohm
Supply Voltage Range	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V
Switch Time Ton (Max)	6ns	7.5ns	4ns
Switch Time Toff (Max)	7.5ns	11ns	4.5ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both identified substitutes—TS5A3167DCKR (Texas Instruments) and TC7SB66CFU,LF(CT (Toshiba)—maintain active product status and full regulatory compliance with ROHS3 and REACH requirements, ensuring long-term availability and supply chain stability.

The TS5A3167DCKR offers superior on-state resistance performance at 900mOhm, representing a 25% improvement over the original PI5A3167CCEX specification. This substitute is recommended for applications where lower insertion loss is beneficial.

The TC7SB66CFU,LF(CT provides the fastest switching performance with 4ns/4.5ns timing characteristics, suitable for high-speed signal routing applications. The higher on-state resistance of 7Ohm should be evaluated against specific circuit impedance requirements.

Both substitutes are electrically and mechanically compatible with the original component within the defined parameter envelope. Selection should be based on specific application requirements regarding on-state resistance and switching speed performance.

Frequently Asked Questions (FAQ)

Q: Can TS5A3167DCKR directly replace PI5A3167CCEX in existing designs?

A: Yes. Both components share identical switch topology (SPST-NC), circuit count (1:1), supply voltage range (1.65V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and package form factor (5-TSSOP, SC-70-5, SOT-353). The TS5A3167DCKR features lower on-state resistance (900mOhm vs. 1.2Ohm), which is a performance improvement. Pin-level compatibility and functional equivalence are confirmed.

Q: What are the key differences between the two substitute options?

A: The TS5A3167DCKR (Texas Instruments) prioritizes low on-state resistance at 900mOhm with moderate switching speed (7.5ns/11ns). The TC7SB66CFU,LF(CT (Toshiba) prioritizes switching speed with 4ns/4.5ns timing but exhibits higher on-state resistance at 7Ohm. Both maintain full supply voltage and temperature range compatibility.

Q: Are package dimensions identical across all three parts?

A: All three components use the 5-TSSOP, SC-70-5, SOT-353 package form factor. Physical footprint and pin spacing are compatible for direct PCB layout substitution.

Q: What is the significance of the PI5A3167CCEX Last Time Buy status?

A: Last Time Buy designation indicates Diodes Incorporated has discontinued production. Existing inventory is limited. Transition to an active substitute part is recommended for new designs and long-term production planning.

Q: Do all three parts meet current regulatory requirements?

A: Yes. All three components are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.

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