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Mean Well GSM12U48-P1J Power Supply 12W 48V 250mA

Name: Mean Well GSM12U48-P1J Power Supply 12W 48V 250mA
Brand: Mean Well
SKU: GSM12U48-P1J
Price: 20.27 USD
Availability: InStock

SKU GSM12U48-P1J

$20.27 USD

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GSM12U48-P1J

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Product variants

In stock

Overview

GSM12U48-P1J is the 48V output model of this series: rated current 0.25A, typical efficiency 87%.

GSM12U is a highly reliable, 12W wall-mounted style single-output green medical adaptor series, which is compact and convient for carry. This product is equipped with the standard 2-pin U.S. plug. GSM12U is a class Ⅱ power unit (no FG), accepting the input range from 80VAC to 264VAC that it can satisfy the demands for various types of medical electrical devices. The circuitry design meets the international medical standards (2*MOPP), having an ultra low leakage current (<100μA), fitting the medical devices in direct electrical contact with the patients. With the working effiiciency up to 87% and the extremely low no-load power consumption below 0.075W (<0.1W for 18V/48V), GSM12U is compliant with the latest USA energy regulation EISA 2007/DoE(Level Ⅵ). The supreme feature allows the adaptor to save the energy when it is under either the operating mode or the standby mode. The entire series is approved for international safety regulations; moreover, it adopts the 94V-0 flame retadant plastic case that it can effeclively prevent users from electric hazarad.

Features

Universal AC input / Full range
Medical safety approved (2 x MOPP) according to ANSI/AAMI ES60601-1/ES60601-1-11
Extremely low leakage current
No load power consumption< 0.075W(<0.1W for 18V/48V)
Energy efficiency Level Ⅵ
-20~+70℃ wide range working temperature
Class Ⅱ power (no earth pin)
Protections: Short circuit / Overload / Over voltage
Fully enclosed plastic case
Various DC plug quick adaptor accessory available (Plug kit sold sperately, please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
3 years warranty

Specifications

GSM12U48-P1JSpecifications from the official datasheet (2022-04-15 edition)

OUTPUT

SAFETY MODEL NO.: GSM12U48
DC VOLTAGE^Note.2: 48V
RATED CURRENT: 0.25A
CURRENT RANGE: 0 ~ 0.25A
RATED POWER (max.): 12W
RIPPLE & NOISE (max.)^Note.3: 100mVp-p
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION^Note.5: ±1.0%
LOAD REGULATION^Note.6: ±2.0%
SETUP, RISE, HOLD UP TIME: 500ms, 30ms, 16ms/230VAC 500ms, 30ms, 16ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.7: 80 ~ 264VAC 113 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 87%
AC CURRENT: 0.4A / 115VAC 0.2A / 230VAC
INRUSH CURRENT (max.): Cold start 30A / 115VAC 60A / 230VAC
LEAKAGE CURRENT(max.): Touch current < 100μA/264VAC

PROTECTION

OVERLOAD: 110 ~ 200% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 110 ~ 140% rated output voltage Protection type : Clamp by zener diode, output short

ENVIRONMENT

WORKING TEMP.: -20 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 0 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -20 ~ +85℃, 0 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03% / ℃ (0 ~ 40℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note. 8)

SAFETY STANDARDS: ANSI/ AAMI ES60601-1/ES60601-1-11(3.1 version), CAN/CSA-C22 NO. 60601-1 3rd edition, EAC TP TC 004 approved GSM12U05-USB without ANSI/ AAMII ES60601-1-11
ISOLATION LEVEL: Pimary - Secondary: 2 x MOPP
WITHSTAND VOLTAGE: I/P-O/P:5656VDC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted emission FCC PART 15 / CISPR22 Class B
Radiated emission FCC PART 15 / CISPR22 Class B

Parameter	Standard	Test Level
Conducted emission	FCC PART 15 / CISPR22	Class B
Radiated emission	FCC PART 15 / CISPR22	Class B

OTHERS

LIFE: 3 years : 100% load 40℃, 12hours / day
MTBF: 400Khrs min. MIL-HDBK-217F(25℃)
DIMENSION: 62.2*27.4*45.5mm (L*W*H)
PACKING: 109g, 110pcs / 13kg / CARTON for cable connection ; 73g, 150pcs / 12kg / CARTON for USB connection

CONNECTOR

PLUG: See page 4~5 ; other type available by customer requested
CABLE: See page 4~5 ; other type available by customer requested

Certifications & ratings

IP rating: IP22

Test conditions and notes8

1.All parameters are specified at 115VAC input, rated load, 25℃ 70% RH ambient.
2.DC voltage: The output voltage set at point measure by plug terminal & 50% load.
3.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
4.Tolerance: includes set up tolerance, line regulation, load regulation.
5.Line regulation is measured from low line to high line at rated load.
6.Load regulation is measured from 10% to 100% rated load.
7.Derating may be needed under low input voltage. Please check the derating curve for more details.
8.The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the 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)

Technical drawings

GSM12U48-P1J Derating Curve — Derating Curve

GSM12U48-P1J Mechanical Specification — Mechanical Specification

GSM12U48-P1J DC output plug — DC output plug

GSM12U48-P1J Illustration (page 5) — Illustration (page 5)

Typical applications

Downloads

Datasheet1

GSM12U48-P1J datasheetGSM12U-SPEC.PDF · 2022-04-15 edition PDF Download

Catalogues3

Mean Well Medical Catalog PDF Download

Mean Well Adaptor Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the GSM12U48-P1J for a low-power 48V communications or control device?

Yes, if the equipment requires constant 48V DC and the load does not exceed 0.25A, this supply can fit. With a 12W output rating, it is aimed at lower-power 48V electronics rather than larger network or telecom loads.

Is this 48V adapter suitable for embedded systems that run on 48V DC?

It is suitable for embedded equipment designed for a fixed 48V input and total consumption within 12W. The 80-264VAC input range also helps in installations where AC source conditions are not tightly controlled.

Would this model work for a compact 48V industrial interface module?

Yes, for a compact 48V interface or signal-conditioning module with a light current draw, this supply can be appropriate. Its output limit is 0.25A, so it is best for small electronics rather than higher-demand 48V devices.

Can the GSM12U48-P1J be used in a small lab or validation fixture that needs 48V?

It can be used in a bench or validation fixture that requires constant 48V and remains within the 12W capacity. The 62.2 × 27.4 × 45.5 mm (L × W × H) form factor is also useful where fixture space is limited.

Is this power supply appropriate for exposed outdoor conditions?

The unit is rated IP22, so it should not be treated as an exposed outdoor power supply on its own. Its operating temperature range is -20°C to +70°C with load derating at higher ambient temperatures, and further moisture and dust protection would need to come from the host enclosure.

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