Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well IRM-01-3.3S Switching Power Supply 1W 3V 300mA - Encapsul...
Overview
IRM-01-3.3S is the 3.3V output model of this series: rated current 300mA, rated power 1W, typical efficiency 66%.
IRM-01 is a 1W miniature (33.7*22.2*15mm) AC-DC module-type power supply, ready to be soldered onto the PCB boards of various kinds of electronic instruments or industrial automation equipments. This product allows a universal input voltage range of 85~305VAC. The phenolic case and the fully-potted silicone enhance the heat dissipation and meet the anti-vibration demand up to 5G; moreover, it provides the fundamental resistance to dust and moisture. With the high efficiency up to 77% and the extremely low no-load power consumption below 0.075W, IRM-01 series fulfills the worldwide regulation for the low power consumption requirement for electronics. The entire series is a Class Ⅱ design (no FG pin), incorporating the built-in EMI filtering components, enabling the compliance with EN55032 Class B; the supreme EMC features keep the end electronic units from electromagnetic interference. In addition to module-type model, IRM-01 series also offers the SMD style model.
Features
- Universal AC input / Full range
- No load power consumption<0.075W
- Compact size
- Comply with EN55032 Class B without any additional components
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- Isolation ClassⅡ
- High reliability, low cost
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 3.3V
- RATED CURRENT
- 300mA
- CURRENT RANGE
- 0 ~ 300mA
- RATED POWER
- 1W
- RIPPLE & NOISE (max.)Note.2
- 150mVp-p
- VOLTAGE TOLERANCENote.3
- ±2.5%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIME
- 600ms, 30ms/230VAC 600ms, 30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 40ms/230VAC 12ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 85 ~ 305VAC 120 ~ 430VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 66%
- AC CURRENT (Typ.)
- 25mA/115VAC 18mA/230VAC 16mA/277VAC
- INRUSH CURRENT (Typ.)
- 5A/115VAC 10A/230VAC
- LEAKAGE CURRENT
- < 0.25mA/277VAC
PROTECTION
- OVERLOAD
- ≥110% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 3.8 ~ 4.9V Protection type : Shut off o/p voltage, clamping by zener diode
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +85℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +100℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 75℃)
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
- LEAD TEMPERATURE
- 260℃,10s (max.)
SAFETY & EMC
- SAFETY STANDARDS
- UL62368-1, TUV EN62368-1, EAC TP TC 004 , BSMI CNS14336-1 approved , Design refer to EN61558-1/-2-16
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC
- ISOLATION RESISTANCE
- I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class B
- EMC IMMUNITY
- Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, heavy industry level (surge L-N : 1KV), criteria A, EAC TP TC 020
OTHERS
- MTBF
- 1960Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- PCB mounting style : 33.7*22.2*15mm (L*W*H) SMD style : 33.7*22.2*16mm (L*W*H)
- PACKING
- PCB mounting style : 0.024Kg; 640pcs/ 16.3 Kg/ 0.84CUFT SMD style : 0.024Kg; 640 pcs/ 16.3 Kg/ 0.84CUFT
Test conditions and notes4
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
Technical drawings
Typical applications
- Industrial electrical equipment
- Mechanical equipment
- Factory automation equipment
- Handheld electronic device
Downloads
Datasheet1
Certificates4
Test reports1
Catalogues1
FAQ
What output does the Mean Well IRM-01-3.3S provide?
The IRM-01-3.3S is a 1W encapsulated switching power supply with a single 3.3V DC output. Its rated output current is 300mA, making it suitable for low-power embedded and PCB-based applications.
What input voltage range does the IRM-01-3.3S support?
This model accepts a universal input range of 85 to 305VAC and also supports 120 to 430VDC. That wide range helps it fit products intended for global markets or systems with varying line conditions.
What kinds of applications is the IRM-01-3.3S typically used for?
The IRM-01-3.3S is intended for compact, low-power electronics that need a regulated 3.3V supply on a PCB. Its small encapsulated form factor and low standby consumption make it a practical choice for space-constrained industrial and commercial equipment.
Is the IRM-01-3.3S suitable for demanding temperature conditions?
This power supply is rated for operation from -30°C to +85°C, subject to the output derating curve. That gives it a relatively wide operating window for enclosed equipment or environments with significant temperature variation.
What protection features are included in the IRM-01-3.3S?
The IRM-01-3.3S includes short circuit, overload, and over voltage protection. Overload protection operates in hiccup mode with auto-recovery, and over voltage protection is specified at 115% to 135% of rated output voltage.
How compact is the Mean Well IRM-01-3.3S?
The PCB mounting version is specified at 33.7 x 22.2 x 15mm, while the SMD style is 33.7 x 22.2 x 16mm. This compact footprint is one of the main advantages of the IRM series for dense board layouts.
Does the IRM-01-3.3S meet recognized safety and EMC standards?
Yes. The product is approved to UL60950-1 and TUV EN60950-1, and its design refers to IEC60601-1, EN60335-1, and EN61558-1/-2-16. It also lists EMC compliance to standards including EN55022 Class B and EN55024.
Is the IRM-01-3.3S designed for low no-load power consumption?
Yes. Mean Well specifies no-load power consumption below 0.075W for this model. That makes it a good fit for equipment where standby efficiency matters.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Other IRM-01 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well IRM-01-3.3 Switching Power Supply 1W 3.3V 300mA - Encapsulated | 1W | 3.3V | 0.3A | IP20 | $5.94 | View |
| Mean Well IRM-01-24S Switching Power Supply 1W 24V 72mA - Encapsulated | 1W | 24V | 0.042A | IP20 | $6.87 | View |
| Mean Well IRM-01-15 Switching Power Supply 1W 15V 67mA - Encapsulated | 1W | 15V | 0.067A | IP20 | $5.94 | View |
Please log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
