PI3B3861LE Equivalent & Substitute Parts

Part Overview

The PI3B3861LE is a bus switch IC manufactured by Diodes Incorporated, configured as a 10 x 1:1 logic switch in a 24-TSSOP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates on single supply voltage between 3V and 3.6V with an operating temperature range of -40°C to 85°C. Substitute parts maintain functional equivalence through identical circuit configuration, voltage supply parameters, and thermal operating range.

Key Parameters

Parameter	Value
Type	Bus Switch
Circuit Configuration	10 x 1:1
Independent Circuits	1
Voltage Supply Source	Single Supply
Voltage - Supply Range	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Primary Package	24-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PI3B3861LE is determined by the following critical parameters:

Circuit configuration (10 x 1:1 bus switch topology)
Voltage supply range compatibility (minimum 2.3V to 3.6V encompasses the original 3V to 3.6V requirement)
Operating temperature range (-40°C to 85°C)
Mounting type (Surface Mount)
Package compatibility (24-TSSOP, 24-QSOP, or 24-SSOP variants)

All listed substitute parts maintain these core electrical and mechanical parameters. Package variants (TSSOP, QSOP, SSOP, TVSOP) are functionally equivalent with different physical footprints. Automotive-grade variants (CCBTLV3861 series) include AEC-Q100 qualification and are suitable for applications requiring automotive compliance.

Parameter Comparison

Part Number	Manufacturer	Circuit	Voltage Supply	Temp Range	Package	Status	RoHS
PI3B3861LE	Diodes Incorporated	10 x 1:1	3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Obsolete	ROHS3
74CBTLV3861PGG	IDT	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	Not specified
74CBTLV3861PGG8	IDT	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	Not specified
74CBTLV3861QG	Renesas Electronics	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-QSOP	Active	ROHS3
74CBTLV3861QG8	Renesas Electronics	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-QSOP	Active	ROHS3
CCBTLV3861IPWRG4Q1	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	ROHS3
CCBTLV3861IPWRQ1	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	ROHS3
SN74CB3Q6800PWR	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	ROHS3
SN74CBTLV3861DBQR	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-SSOP	Active	ROHS3
SN74CBTLV3861DGVR	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TVSOP	Active	ROHS3
SN74CBTLV3861PW	Texas Instruments	10 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	24-TSSOP	Active	ROHS3

Engineering Selection Recommendations

All substitute parts listed are active production components with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The PI3B3861LE's obsolete status necessitates migration to active alternatives.

For standard industrial applications, the 74CBTLV3861 series from IDT and Texas Instruments (SN74CBTLV3861PW, SN74CBTLV3861DBQR, SN74CBTLV3861DGVR) provide direct functional equivalence with identical electrical parameters and multiple package options.

For automotive applications requiring AEC-Q100 qualification, the CCBTLV3861IPWRQ1 and CCBTLV3861IPWRG4Q1 variants from Texas Instruments are specified. These parts maintain the same circuit configuration and voltage parameters while meeting automotive-grade standards.

The SN74CB3Q6800PWR represents an alternative series option with identical functional specifications and active production status.

Package selection depends on PCB layout requirements: 24-TSSOP (0.173" width) for standard applications, 24-QSOP (0.154" width) for space-constrained designs, 24-SSOP (0.154" width) for alternative footprint compatibility, and 24-TVSOP (0.173" width) for thermal performance considerations.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PI3B3861LE with any of the listed substitutes?

A: Yes, all listed parts maintain the same 10 x 1:1 bus switch circuit configuration, single supply voltage range (2.3V to 3.6V encompasses the original 3V to 3.6V), and -40°C to 85°C operating temperature range. Package footprint must match your PCB design.

Q: What is the difference between 24-TSSOP, 24-QSOP, and 24-SSOP packages?

A: These are different physical package formats with the same pin count and electrical function. 24-TSSOP measures 0.173" width, 24-QSOP measures 0.154" width, and 24-SSOP measures 0.154" width. Package selection is determined by your PCB layout and available board space.

Q: Are the automotive-grade CCBTLV3861 parts suitable for non-automotive applications?

A: Yes. Automotive-grade parts exceed standard industrial requirements and are fully compatible with non-automotive designs. They provide additional qualification and reliability assurance.

Q: What does the voltage range 2.3V to 3.6V mean for my 3V to 3.6V application?

A: The substitute parts' wider voltage range (2.3V to 3.6V) fully encompasses your original specification (3V to 3.6V). This provides additional design margin and is fully compatible.

Q: Why are there multiple part numbers from the same manufacturer?

A: Different suffixes indicate variations in packaging format (Tube, Tape & Reel, Cut Tape, Bulk), moisture sensitivity level, or qualification grade. The core electrical function remains identical across all variants.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other regions. All listed substitutes with ROHS3 designation meet these regulatory requirements.

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