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Mean Well DETN01L-12 DC-DC Converter - 1W - 4.5~5.5V in ±12V out 42mA

Name: Mean Well DETN01L-12 DC-DC Converter - 1W - 4.5~5.5V in ±12V out 42mA
Brand: Mean Well
SKU: DETN01L-12
Price: 5.94 USD
Availability: InStock

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Overview

DETN01L-12 is the ±12V output model of this series: rated power 1W, typical efficiency 78%.

DETN01 series is 1W isolated and unregulated module type DC-DC converter with SMD package. It features international standard pins, a high efficiency up to 83%, 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/±12V/±15V for Dual 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 83%
Protection: Short circuit
3KVDC I/O isolation
Low cost
Optional reel packing
3 years warranty

Specifications

DETN01L-12Specifications from the official datasheet (2026-09-15 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): Normal 5V (4.5 ~ 5.5V)
INPUT CURRENT NO LOAD: 28mA
INPUT CURRENT FULL LOAD: 257mA
OUTPUT VOLTAGE: ±12V
OUTPUT CURRENT: ±4.2 ~ 42mA
EFFICIENCY (TYP.): 78%
CAPACITOR LOAD (MAX.): 220μF

INPUT

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

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

SAFETY STANDARDS: UL62368-1, 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/Bursts 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/Bursts	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

DETN01L-12 Mechanical Specification — Mechanical Specification

DETN01L-12 Pin Assignment — Pin Assignment

DETN01L-12 Reflow Soldering Curve — Reflow Soldering Curve

Typical applications

Downloads

Certificates5

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

Mean Well E183223 UL Certificate PDF Download

Test reports1

Mean Well DETN01L-12 Test Report PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DETN01L-12 for low-power analog sections in industrial control electronics?

Yes, this converter is suited to low-power applications that need a ±12V output from a 4.5~5.5Vdc input. With a 1W rating, it fits small analog sections in industrial or embedded control hardware.

Is the DETN01L-12 a fit for sensor or measurement interface circuits that need ±12V rails?

It can be used where the circuit requires ±12V and the total power stays within 1W. That makes it better aligned with signal-level measurement, sensing, or interface electronics than with higher-power loads.

Can this model work in compact automation boards or communication equipment?

Yes, its 15.24 × 10.9 × 7.1 mm package and 0.0012 kg weight make it practical for compact embedded, automation, and IT assemblies. It is intended for isolated, unregulated DC-DC conversion in small spaces.

Is the DETN01L-12 suitable for indoor cabinets that see wide temperature swings?

The specified operating range is -40°C to +90°C, so it is rated for broad temperature conditions. No IP rating is listed, so the specs do not confirm suitability for direct outdoor exposure or washdown areas.

What is the difference between the DETN01L-12 and the other models in the series?

The DETN01L-12 is a 1W model with ±12V output and up to ±42mA output current. The DETN01L-05 is 1W with ±5V output and up to ±100mA, while the DETN01L-15 is 1W with ±15V output and up to ±34mA.

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