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Mean Well DETN01N-12 DC-DC Converter - 1W - 21.6~26.4V in ±12V out 42mA

Name: Mean Well DETN01N-12 DC-DC Converter - 1W - 21.6~26.4V in ±12V out 42mA
Brand: Mean Well
SKU: DETN01N-12
Price: 5.94 USD
Availability: InStock

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Overview

DETN01N-12 is the ±12V output model of this series: rated power 1W, typical efficiency 77%.

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

DETN01N-12Specifications from the official datasheet (2026-09-15 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): Normal 24V (21.6 ~ 26.4V)
INPUT CURRENT NO LOAD: 11mA
INPUT CURRENT FULL LOAD: 55mA
OUTPUT VOLTAGE: ±12V
OUTPUT CURRENT: ±4.2 ~ 42mA
EFFICIENCY (TYP.): 77%
CAPACITOR LOAD (MAX.): 220μF

INPUT

VOLTAGE RANGE: 21.6 ~ 26.4Vdc
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

DETN01N-12 Mechanical Specification — Mechanical Specification

DETN01N-12 Pin Assignment — Pin Assignment

DETN01N-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 DETN01N-12 Test Report PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DETN01N-12 for a low-power 12V analog or signal-conditioning circuit in industrial equipment?

Yes, it is an unregulated ±12V converter rated at 1W, which fits low-power analog, monitoring, or signal-conditioning functions. The source feeding it should be within the listed 21.6~26.4Vdc input range.

Is the DETN01N-12 a good fit for embedded control boards that need a small 12V rail?

It can be a fit for embedded boards that need a ±12V output and have low power demand. With a 1W rating and up to ±42mA output current, it is better for small support circuitry than for larger control loads.

Can this converter be used in automation or instrumentation products with a 24V-class input?

It is intended for applications where the available input falls within 21.6~26.4Vdc and the required output is ±12V. That makes it a practical option for compact, low-power automation or instrumentation sections rather than high-draw devices.

What is the difference between DETN01N-12, DETN01N-05, and DETN01N-15?

These three models share the same 1W power rating, 21.6~26.4Vdc input range, 15.24 × 10.9 × 7.1 mm size, -40°C to +90°C operating range, and 3-year warranty. Their outputs differ: DETN01N-05 is ±5V at up to ±100mA, DETN01N-12 is ±12V at up to ±42mA, and DETN01N-15 is ±15V at up to ±34mA.

Can the DETN01N-12 be used in outdoor equipment or wide-temperature enclosures?

Its listed operating temperature range is -40°C to +90°C, so it is specified for wide temperature conditions. No IP rating is listed, so the product data does not define direct outdoor or washdown suitability.

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