S-8341C50AFT-T2-U Equivalent & Substitute Parts

Part Overview

The S-8341C50AFT-T2-U is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by ABLIC Inc. in 8-TSSOP surface mount packaging. This component operates as a transistor driver for step-up topology power management applications with a single positive output phase. The part is classified as obsolete, making identification of equivalent and substitute components essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Function	Step-Up (Boost)
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Voltage Supply Range (Vcc/Vdd)	0.8V ~ 6V
Switching Frequency	300kHz
Maximum Duty Cycle	89%
Control Features	Current Limit, Enable, Soft Start
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the S-8341C50AFT-T2-U is determined by strict parameter matching across the following critical criteria:

Mandatory Matching Parameters:

Manufacturer: ABLIC Inc.
Category: Power Management (PMIC)
Function: Step-Up (Boost)
Output Type: Transistor Driver
Output Configuration: Positive
Number of Outputs: 1
Voltage Supply Range: 0.8V ~ 6V
Maximum Duty Cycle: 89%
Control Features: Current Limit, Enable, Soft Start
Operating Temperature Range: -40°C ~ 85°C (TA)
Package / Case: 8-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter (Allows Substitution Variance):

Switching Frequency: 300kHz (main part) vs. 600kHz or 30kHz (substitute variants)

All identified substitute parts maintain identical electrical and mechanical specifications except for switching frequency, which varies based on specific model designation within the S-8340/S-8341 series.

Parameter Comparison

Part Number	Manufacturer	Switching Frequency	Voltage Supply (Vcc/Vdd)	Duty Cycle (Max)	Operating Temperature	Package	Inventory Status
S-8341C50AFT-T2-U	ABLIC Inc.	300kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	741 Pcs
S-8340A50AFT-T2-U	ABLIC Inc.	600kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	900 Pcs
S-8340B00AFT-T2-U	ABLIC Inc.	600kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	909 Pcs
S-8340C50AFT-T2-U	ABLIC Inc.	300kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	1085 Pcs
S-8341A50AFT-T2-U	ABLIC Inc.	600kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	828 Pcs
S-8341B00AFT-T2-U	ABLIC Inc.	600kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	5270 Pcs
S-8341C33AFT-T2-U	ABLIC Inc.	30kHz	0.8V ~ 6V	89%	-40°C ~ 85°C	8-TSSOP	789 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, consistent with the main part S-8341C50AFT-T2-U. All components are classified as obsolete products from ABLIC Inc.

Selection among substitute parts should be based on application-specific switching frequency requirements:

300kHz switching frequency requirement: S-8340C50AFT-T2-U provides direct frequency matching with highest inventory availability (1085 Pcs).
600kHz switching frequency requirement: S-8341B00AFT-T2-U offers the largest inventory stock (5270 Pcs), followed by S-8340B00AFT-T2-U (909 Pcs) and S-8341A50AFT-T2-U (828 Pcs).
30kHz switching frequency requirement: S-8341C33AFT-T2-U is the sole option (789 Pcs available).

All parts share identical 8-TSSOP surface mount packaging, voltage supply range, duty cycle specification, control features, and operating temperature range, ensuring mechanical and electrical compatibility within the specified parameter set.

Frequently Asked Questions (FAQ)

Q: Can S-8341C50AFT-T2-U be directly replaced with any of the listed substitutes?

A: Direct replacement depends on switching frequency tolerance in your application. S-8340C50AFT-T2-U matches the 300kHz specification exactly. Parts with 600kHz or 30kHz switching frequencies are substitutes only if your circuit design accommodates the frequency variation.

Q: Are all substitute parts in the same package?

A: Yes. All parts use 8-TSSOP (0.173", 4.40mm Width) surface mount packaging, ensuring identical PCB footprint compatibility.

Q: What is the significance of the switching frequency difference?

A: Switching frequency affects output ripple, EMI characteristics, and component sizing in the boost converter circuit. Higher frequencies (600kHz) typically reduce inductor and capacitor sizes; lower frequencies (30kHz) increase component sizes but may reduce switching losses in specific applications.

Q: Are all parts RoHS compliant?

A: Yes. All listed parts maintain ROHS3 compliance status.

Q: What does MSL Level 1 mean for these components?

A: MSL Level 1 indicates unlimited shelf life with no moisture sensitivity restrictions, allowing standard storage and handling procedures without special precautions.

Q: Which substitute offers the best inventory availability?

A: S-8341B00AFT-T2-U provides the highest stock level at 5270 Pcs, all with 600kHz switching frequency specification.

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