PI3C3125LE Bus Switch 1 x 1:1 Equivalent & Substitute Parts

Part Overview

The PI3C3125LE is a bus switch IC manufactured by Diodes Incorporated, designed for 1 x 1:1 switching applications in logic circuits. This part operates with a single supply voltage ranging from 2.3V to 3.6V and is housed in a 14-TSSOP surface mount package. The PI3C3125LE is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts maintain identical electrical and mechanical specifications while offering active product status or improved availability.

Key Parameters

Parameter	Value
Part Number	PI3C3125LE
Manufacturer	Diodes Incorporated
Product Category	Logic Bus Switch
Circuit Configuration	1 x 1:1
Independent Circuits	4
Voltage Supply Range	2.3V ~ 3.6V
Operating Temperature Range	-40°C ~ 85°C
Package Type	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the PI3C3125LE are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

Circuit configuration: 1 x 1:1
Independent circuits: 4
Voltage supply range: 2.3V ~ 3.6V
Operating temperature range: -40°C ~ 85°C
Voltage supply source: Single Supply

Mechanical Parameters:

Package type: 14-TSSOP
Package dimensions: 0.173" width, 4.40mm width
Mounting type: Surface Mount
Supplier device package: 14-TSSOP

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain these specifications identically. Substitution is valid across all listed parts without design modification or re-qualification when these parameters remain constant.

Parameter Comparison

Part Number	Manufacturer	Product Status	Circuit Config	Voltage Supply	Operating Temp	Package	Packaging Type	Inventory (Pcs)
PI3C3125LE	Diodes Incorporated	Obsolete	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	4,125
PI3C3125LEX	Diodes Incorporated	Active	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tape & Reel	45,100
74CBTLV3125PGG8	Renesas Electronics Corporation	Active	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tape & Reel	998
74CBTLV3125PGG	Renesas Electronics Corporation	Active	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	1,692
SN74CB3Q3125PW	Texas Instruments	Last Time Buy	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	7,365
SN74CB3T3125PW	Texas Instruments	Last Time Buy	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	2,126
SN74CBTLV3125PW	Texas Instruments	Last Time Buy	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	5,340
SN74CBTLV3126PW	Texas Instruments	Last Time Buy	1 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	14-TSSOP	Tube	16,020

Engineering Selection Recommendations

Primary Recommendation: PI3C3125LEX

PI3C3125LEX is the direct equivalent from the original manufacturer Diodes Incorporated with active product status. This part is functionally identical to the obsolete PI3C3125LE and is available in Tape & Reel packaging with the highest inventory level (45,100 units). Selection of PI3C3125LEX eliminates any cross-manufacturer compatibility concerns and maintains design continuity with the original specification.

Secondary Recommendations: Renesas 74CBTLV Series

74CBTLV3125PGG and 74CBTLV3125PGG8 from Renesas Electronics Corporation are parametric equivalents with active product status. Both parts maintain identical electrical specifications and 14-TSSOP packaging. The primary distinction is packaging format: 74CBTLV3125PGG is supplied in Tube packaging (1,692 units available), while 74CBTLV3125PGG8 is supplied in Tape & Reel format (998 units available).

Tertiary Recommendations: Texas Instruments 74CB Series

SN74CBTLV3125PW, SN74CBTLV3126PW, SN74CB3Q3125PW, and SN74CB3T3125PW from Texas Instruments are parametric equivalents with Last Time Buy product status. These parts maintain identical electrical and mechanical specifications. SN74CBTLV3126PW offers the highest inventory availability (16,020 units) among Texas Instruments options. Last Time Buy status indicates these parts remain available but production will cease; selection should account for long-term supply requirements.

Compliance Verification

All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory alignment with the original PI3C3125LE specification.

Frequently Asked Questions (FAQ)

Q: Can PI3C3125LEX be used as a direct replacement for PI3C3125LE?

A: Yes. PI3C3125LEX is the direct manufacturer equivalent from Diodes Incorporated. All electrical parameters, circuit configuration, voltage supply range, operating temperature range, and 14-TSSOP package specifications are identical. The only difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. Tube).

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is supplied in plastic tubes suitable for manual handling and small-quantity applications. Tape & Reel packaging is supplied on continuous tape wound on reels, optimized for automated assembly processes and high-volume production. Both formats contain identical components; selection depends on assembly methodology and order quantity requirements.

Q: Are cross-manufacturer substitutions (Diodes to Renesas to Texas Instruments) valid?

A: Yes, when all critical parameters match. All listed substitute parts maintain identical circuit configuration (1 x 1:1), independent circuits (4), voltage supply range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 14-TSSOP package specifications. Cross-manufacturer substitution is valid without design modification.

Q: What does "Last Time Buy" product status mean?

A: Last Time Buy indicates the manufacturer will continue supplying the part for a limited period before discontinuing production. Parts with this status remain fully functional and available but should not be selected for new long-term designs. Existing inventory may be purchased, but future availability is not guaranteed.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All substitute parts listed maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the original PI3C3125LE specification.

Q: Which substitute part offers the best availability?

A: PI3C3125LEX from Diodes Incorporated offers the highest inventory level at 45,100 units. Among alternative manufacturers, SN74CBTLV3126PW from Texas Instruments provides 16,020 units in stock.

Q: Can I mix different substitute parts in the same design?

A: Yes. All substitute parts maintain identical electrical and mechanical specifications. Mixed usage across different substitute parts in the same circuit design is valid without functional impact.

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