SN74AHCT1G86DBVT Equivalent & Substitute Parts

Part Overview

The SN74AHCT1G86DBVT is a single-channel XOR (Exclusive OR) logic gate IC manufactured by Texas Instruments in SOT-23-5 surface mount packaging. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. The device operates within a 4.5V to 5.5V supply voltage range with a maximum propagation delay of 7.9ns at 5V with 50pF load. Equivalent and substitute parts must maintain functional compatibility while accommodating available packaging and manufacturer options.

Key Parameters

Parameter	Value
Logic Type	XOR (Exclusive OR)
Number of Circuits	1
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	1 µA
Current - Output High, Low	8mA, 8mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	7.9ns @ 5V, 50pF
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74AHCT1G86DBVT is determined by the following critical parameters:

Functional Requirements: Logic type (XOR), number of circuits (1), and number of inputs (2) must remain constant across all substitutes.

Electrical Compatibility: Supply voltage range (4.5V ~ 5.5V), input logic levels (Low: 0.8V, High: 2V), and output current capability (8mA minimum for both high and low states) define the primary electrical substitution criteria.

Performance Characteristics: Propagation delay specifications and quiescent current determine timing-critical applications. Parts with equivalent or superior performance (lower delay, lower quiescent current) are acceptable substitutes.

Environmental & Compliance: Operating temperature range (-40°C ~ 125°C), RoHS3 compliance, and MSL rating (1 - Unlimited) establish baseline reliability requirements.

Packaging Considerations: While the original part uses SOT-23-5 packaging, functionally equivalent parts in alternative surface mount packages (SC-74A, SOT-753, 5-TSSOP, SC-70-5, SOT-353, SOT-25) are acceptable provided pin configuration and electrical characteristics remain compatible.

Substitute parts are grouped into three categories: parametric equivalents (identical electrical specifications), direct manufacturer alternatives (different manufacturer, compatible specifications), and manufacturer-recommended options (active product status with verified compatibility).

Parameter Comparison

Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Current - Output High, Low	Max Propagation Delay @ V, Max CL	Operating Temperature	Package / Case	Product Status
SN74AHCT1G86DBVT	Texas Instruments	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Discontinued
SN74AHCT1G86DBVR	Texas Instruments	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active
MC74VHC1G86DTT1G	onsemi	74VHC	2V ~ 5.5V	1 µA	8mA, 8mA	8.8ns @ 5V, 50pF	-55°C ~ 125°C	SOT-23-5 Thin, TSOT-23-5	Obsolete
74AHCT1G86GW,125	Nexperia USA Inc.	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	5-TSSOP, SC-70-5, SOT-353	Active
74HCT1G86GV,125	NXP Semiconductors	74HCT	4.5V ~ 5.5V	20 µA	2mA, 2mA	27ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active
NC7ST86M5X	onsemi	7ST	4.5V ~ 5.5V	1 µA	2mA, 2mA	28ns @ 5.5V, 50pF	-40°C ~ 85°C	SC-74A, SOT-753	Active
NC7ST86P5X	onsemi	7ST	4.5V ~ 5.5V	1 µA	2mA, 2mA	28ns @ 5.5V, 50pF	-40°C ~ 85°C	5-TSSOP, SC-70-5, SOT-353	Active
74AHCT1G86GV,125	Nexperia USA Inc.	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active
74AHCT1G86GV-Q100	Nexperia USA Inc.	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active
74AHCT1G86QW5-7	Diodes Incorporated	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active
74AHCT1G86W5-7	Diodes Incorporated	74AHCT	4.5V ~ 5.5V	1 µA	8mA, 8mA	7.9ns @ 5V, 50pF	-40°C ~ 125°C	SC-74A, SOT-753	Active

Engineering Selection Recommendations

Primary Substitute (Highest Compatibility): SN74AHCT1G86DBVR from Texas Instruments is the direct parametric equivalent with identical electrical specifications, operating temperature range, and propagation delay. This part maintains active product status and is available in Cut Tape and Digi-Reel packaging.

Manufacturer-Recommended Alternatives: Parts from the 74AHCT series (74AHCT1G86GW,125 from Nexperia USA Inc., 74AHCT1G86GV,125 and 74AHCT1G86GV-Q100 from Nexperia USA Inc., and 74AHCT1G86QW5-7 and 74AHCT1G86W5-7 from Diodes Incorporated) provide identical electrical performance and operating temperature specifications. These parts are in active production status and offer alternative packaging options (5-TSSOP, SC-70-5, SOT-353, SOT-25) while maintaining the same base product number 74AHCT1G86.

Secondary Alternatives with Performance Trade-offs: The 74HCT1G86GV,125 from NXP Semiconductors maintains voltage and temperature compatibility but exhibits reduced output current capability (2mA versus 8mA) and increased propagation delay (27ns versus 7.9ns). This part is suitable only for applications with relaxed timing and current requirements.

Limited Compatibility Options: NC7ST86M5X and NC7ST86P5X from onsemi maintain quiescent current and output current specifications but operate within a reduced temperature range (-40°C to 85°C versus -40°C to 125°C) and exhibit increased propagation delay (28ns). These parts are acceptable only for applications not requiring the full -40°C to 125°C operating range.

Avoid: MC74VHC1G86DTT1G from onsemi is marked as obsolete and should not be selected for new designs despite broader voltage range compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use SN74AHCT1G86DBVR as a direct replacement for SN74AHCT1G86DBVT?

A: Yes. SN74AHCT1G86DBVR is a parametric equivalent with identical electrical specifications, operating temperature range, and propagation delay. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Both parts are from Texas Instruments and use the same base product number 74AHCT1G86.

Q: What is the difference between 74AHCT and 74HCT series parts?

A: The 74AHCT series (Advanced High-Speed CMOS) provides superior performance with 8mA output current and 7.9ns propagation delay. The 74HCT series (High-Speed CMOS) offers reduced performance with 2mA output current and 27ns propagation delay. The 74HCT1G86GV,125 is acceptable only for non-timing-critical applications.

Q: Are Nexperia and Diodes Incorporated parts fully compatible with the original Texas Instruments part?

A: Yes, for the 74AHCT series variants. Parts 74AHCT1G86GW,125, 74AHCT1G86GV,125, 74AHCT1G86GV-Q100, 74AHCT1G86QW5-7, and 74AHCT1G86W5-7 maintain identical electrical specifications and operating temperature ranges. Packaging differs but pin configuration remains compatible.

Q: Why should I avoid the onsemi 7ST series parts?

A: The NC7ST86M5X and NC7ST86P5X operate within a reduced temperature range (-40°C to 85°C) and exhibit increased propagation delay (28ns). These parts are acceptable only if your application does not require operation above 85°C.

Q: What packaging options are available for substitutes?

A: Substitutes are available in SOT-23-5, SC-74A, SOT-753, 5-TSSOP, SC-70-5, SOT-353, and SOT-25 packages. All are surface mount configurations. Verify PCB layout compatibility before selecting alternative packages.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), matching the original SN74AHCT1G86DBVT specifications.

Q: Which substitute has the best availability?

A: 74HCT1G86GV,125 from NXP Semiconductors shows the highest inventory (42,028 pcs). However, this part has reduced performance specifications. For equivalent performance, 74AHCT1G86W5-7 from Diodes Incorporated offers high availability (27,100 pcs) with identical electrical specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message