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Mean Well SFTN01L-12 DC-DC Converter - 1W - 4.5~5.5V in 12V out 84mA

Name: Mean Well SFTN01L-12 DC-DC Converter - 1W - 4.5~5.5V in 12V out 84mA
Brand: Mean Well
SKU: SFTN01L-12
Price: 5.57 USD
Availability: InStock

SKU SFTN01L-12

$5.57 USD

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Overview

SFTN01L-12 is the 12V output model of this series: rated power 1W, typical efficiency 80%.

SFTN01 series is 1W isolated and unregulated module type DC-DC converter with SMD package. It features international standard pins, a high efficiency up to 82%, wide working temperature range -40~+90℃, 3KVDC I/P-O/P isolation voltage, compliance to BS EN/EN55032 radiated Class B without additional components, short circuit protection, etc. The models account for different input voltage 5V/12V/24V±10%, and various output voltage, 5V/9V/12V/15V for single output which are suitable for all kinds of systems, such as industrial control, telecommunication field, distributed power architecture, and so on.

Features

SMD package with industry standard pinout
Operating temperature range -40 ~ +90℃
Comply to BS EN/EN55032 radiated Class B without additional components
High efficiency up to 82%
Protection: Short circuit
3KVDC I/O isolation
Low cost
Optional reel packing
3 years warranty

Specifications

SFTN01L-12Specifications from the official datasheet (2026-09-15 edition)

INPUT

INPUT VOLTAGE (RANGE): Normal 5V (4.5 ~ 5.5V)
INPUT CURRENT NO LOAD: 28mA
INPUT CURRENT FULL LOAD: 257mA
VOLTAGE RANGE: 4.5 ~ 5.5Vdc
SURGE VOLTAGE (100ms max.): 5Vin models : 9Vdc 12Vin models : 16Vdc 24Vin models : 30Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 5Vin models: 750mA Slow-Blow Type 12Vin models: 300mA Slow-Blow Type 24Vin models: 150mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

OUTPUT VOLTAGE: 12V
OUTPUT CURRENT: 8.4 ~ 84mA
EFFICIENCY (TYP.): 80%
CAPACITOR LOAD (MAX.): 220μF
VOLTAGE ACCURACY: ±2.0%
RATED POWER: 1W
RIPPLE & NOISE^Note.2: 75mVp-p
LINE REGULATION^Note.3: 1.2% for 1% input variation
LOAD REGULATION^Note.4: ±8%
SWITCHING FREQUENCY (Typ.): 100KHz

PROTECTION

SHORT CIRCUIT: Standard model: 0.5 second max. Optional models (SC-suffix): Continuous

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: Standard model: -40 ~ +90℃ (Refer to "Derating Curve") ; Optional models (SC-suffix): -40 ~ +105℃
CASE TEMPERATURE: +100℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (0 ~ 85℃)
SOLDERING TEMPERATURE: 1.5mm from case of 1 ~ 10sec./240℃ max.
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC ( Note.5,6)

SAFETY STANDARDS: UL62368-1(Except for 9V output models), EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVDC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE (Typ.): 80pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032(CISPR32) N/A
Radiated BS EN/EN55032(CISPR32) Class B
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, ±8KV air
Radiated Susceptibility BS EN/EN61000-4-3 Level 2, 3V/m
EFT/Burest BS EN/EN61000-4-4 Level 1, 0.5KV
Surge BS EN/EN61000-4-5 Level 2, 0.5KV Line-Line
Conducted BS EN/EN61000-4-6 Level 2, 3V
Magnetic Field BS EN/EN61000-4-8 Level 1, 1A/m

Parameter	Standard	Test Level
Conducted	BS EN/EN55032(CISPR32)	N/A
Radiated	BS EN/EN55032(CISPR32)	Class B

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, ±8KV air
Radiated Susceptibility	BS EN/EN61000-4-3	Level 2, 3V/m
EFT/Burest	BS EN/EN61000-4-4	Level 1, 0.5KV
Surge	BS EN/EN61000-4-5	Level 2, 0.5KV Line-Line
Conducted	BS EN/EN61000-4-6	Level 2, 3V
Magnetic Field	BS EN/EN61000-4-8	Level 1, 1A/m

OTHERS

MTBF: 880Khrs min. MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 15.24*10.9*7.1mm (0.6*0.43*0.28 inch)
CASE MATERIAL: Non-Conductive black plastic (UL 94V-0 rated)
PACKING: Standard : 1.2g ; 32 pcs/per tube, 3840 pcs/ 120 tube/per carton Optional : 1.2g ; 500 pcs/per reel , 2500 pcs/ 5 reel /per carton

Test conditions and notes6

1.All parameters are specified at normal input(L:5Vdc, M:12Vdc, N:24Vdc), rated load, 25℃ 70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
3.Line regulation is measured from low line to high line at rated load.
4.Load regulation is measured from 10% to 100% rated load.
5.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”(as available on http://www.meanwell.com)
6.An external input filter capacitor is required if the module has to meet BS EN/EN61000-4-4, BS EN/EN61000-4-5. The filter capacitor Power Mate suggest: 470μF/100V.

Technical drawings

SFTN01L-12 Mechanical Specification — Mechanical Specification

SFTN01L-12 Pin Assignment — Pin Assignment

SFTN01L-12 Reflow Soldering Curve — Reflow Soldering Curve

Typical applications

Downloads

Certificates5

Mean Well E183223 UL Certificate PDF Download

Mean Well SBTN01-SFTN01-DETN01-EMC Certificate PDF Download

Mean Well SBTN01-SFTN01-DETN01-CE-dec Certificate PDF Download

Mean Well DETN01-SBTN01-SFTN01-CB(UL) Certificate PDF Download

Mean Well SBTN-SFTN-DETN01-UK-dec Certificate PDF Download

Test reports1

Mean Well SFTN01L-12 Test Report PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SFTN01L-12 to create a 12V rail for a low-power PLC or automation interface board from a 4.5~5.5V source?

Yes, this converter provides a fixed 12V output when the available input is 4.5~5.5V. Because it is rated at 1W, it is best matched to low-power PLC, automation, or control interface sections rather than larger 12V loads.

Is this a fit for powering a small 12V instrumentation or monitoring circuit?

It can fit that use case when the circuit needs a 12V output and the source falls within the 4.5~5.5V input range; as an unregulated converter its load regulation is ±8%. The 1W rating and 84mA maximum output current place it in the low-power instrumentation category.

Would the SFTN01L-12 work in a space-constrained embedded or industrial device?

Its dimensions are 15.24 × 10.9 × 7.1 mm, so it is well suited to compact embedded assemblies and dense control hardware. The fixed 12V output also makes it relevant for small industrial electronics that need a dedicated 12V rail.

Can this converter be used in equipment that sees very low or very high ambient temperatures?

The specified operating temperature range is -40°C to +90°C, which covers cold and hot equipment environments. The product data does not list an IP rating, so temperature capability is defined but exposure protection is not.

How is the SFTN01L-12 different from the other SFTN01L output options?

The sibling models mainly differ by output voltage and output current while staying in the same 1W family. The SFTN01L-05 is 5V and 200mA, the SFTN01L-09 is 9V and 111mA, the SFTN01L-12 is 12V and 84mA, and the SFTN01L-15 is 15V and 67mA.

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