SFT01L-09 Equivalent & Substitute Parts Reference

Part Overview

The SFT01L-09 by MEAN WELL USA Inc. is an obsolete isolated module DC-DC converter in the 1W category, offering a single 9V output at up to 111mA from a 4.5V to 5.5V input. The product's obsolete status necessitates identification of equivalent and substitute parts for engineering designs requiring continuity, replacement, or supply assurance.

Key Parameters

Parameter	SFT01L-09 Value
Type	Isolated Module
Power (Watts)	1 W
Number of Outputs	1
Voltage - Output 1	9V
Current - Output (Max)	111mA
Input Voltage Range	4.5V - 5.5V
Voltage - Isolation	3 kV
Mounting Type	Surface Mount
Package / Case	12-SMD Module, 10 Leads
Size / Dimension	0.60" L x 0.30" W x 0.25" H (15.2mm x 7.5mm x 6.3mm)
Operating Temperature	-40°C ~ 85°C (With Derating)
Features	OCP, SCP
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8504.40.9580

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters: output voltage, output current rating, power rating, input voltage range, isolation voltage, mounting type, package/case, number of outputs, and compliance certifications. Substitute models must adhere to these values to ensure electrical, mechanical, and environmental compatibility.

The substitute parts R1S12-0509/H and R1S12-0509/H-R are grouped due to identical core parameters with SFT01L-09, including single output, 9V/111mA rating, 1W output, surface-mount 12-SMD package, and ROHS3/REACH compliance.

Parameter Comparison

Parameter	SFT01L-09	R1S12-0509/H	R1S12-0509/H-R
Type	Isolated Module	Isolated Module	Isolated Module
Power (Watts)	1 W	1 W	1 W
Number of Outputs	1	1	1
Voltage - Output 1	9V	9V	9V
Current - Output (Max)	111mA	111mA	111mA
Input Voltage Range	4.5V - 5.5V	4.5V - 5.5V	4.5V - 5.5V
Voltage - Isolation	3 kV	3 kV	3 kV
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	12-SMD Module, 10 Leads	12-SMD Module, 10 Leads	12-SMD Module, 10 Leads
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8504.40.9580	8504.40.9580	8504.40.9580

Engineering Selection Recommendations

Given that SFT01L-09 is obsolete, substitute parts R1S12-0509/H and R1S12-0509/H-R are eligible for use in designs requiring identical functional, electrical, mechanical, and compliance profiles. Both substitutes are ROHS3 compliant, REACH unaffected, and carry the same ECCN and HTSUS codes, aligning with regulatory and supply requirements.

Frequently Asked Questions (FAQ)

Q1: What technical criteria are mandatory for substituting SFT01L-09?
A1: Output voltage (9V), output current (111mA), power rating (1W), input voltage range (4.5V–5.5V), isolation voltage (3kV), mounting type (surface mount), package/case (12-SMD, 10 Leads), number of outputs (1), and compliance certifications must match.

Q2: Do substitute parts have identical package dimensions?
A2: Substitute parts have the same package type (12-SMD Module, 10 Leads) but slightly different dimensions. Evaluate the provided size in the parameter table for mechanical fit.

Q3: Are substitute parts compliant with environmental and regulatory statuses?
A3: Both R1S12-0509/H and R1S12-0509/H-R are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8504.40.9580.

Q4: Is functional compatibility guaranteed based on provided data?
A4: Substitutes meet all input, output, and regulatory criteria provided, ensuring compatibility in the intended application context.

Q5: What packaging options are available for substitutes?
A5: R1S12-0509/H is available in tube. R1S12-0509/H-R is available in cut tape and Digi-Reel®. Confirm packaging requirement per assembly process.

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