Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well IRM-01-9 Switching Power Supply 1W 9V 111mA - Encapsulated

Name: Mean Well IRM-01-9 Switching Power Supply 1W 9V 111mA - Encapsulated
Brand: Mean Well
SKU: IRM-01-9
Price: 7.25 USD
Availability: InStock

miniature encapsulated typePCB mouting style

SKU IRM-01-9

$7.25 USD

Shipping calculated at checkout.

In stock

Overview

IRM-01-9 is the 9V output model of this series: rated current 111mA, rated power 1W, typical efficiency 72%.

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 potted with 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 BS EN/EN55032 Class B; the supreme EMC features keep the end electronic units from electromagnetic interference.

Features

Universal AC input / Full range
No load power consumption<0.075W
Compact size
Comply with BS EN/EN55032 Class B without any additional components
Wide operating temp. range -30~+85℃
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Isolation ClassⅡ
High reliability, low cost
3 years warranty

Specifications

IRM-01-9Specifications from the official datasheet (2026-07-01 edition)

OUTPUT

DC VOLTAGE: 9V
RATED CURRENT: 111mA
CURRENT RANGE: 0 ~ 111mA
RATED POWER: 1W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE TOLERANCE^Note.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.): 72%
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: 10.3 ~ 12.2V 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

SAFETY & EMC

SAFETY STANDARDS: IEC62368-1,IEC61558-1/-2-16,UL62368-1,TUV BS EN/EN62368-1,BS EN/EN61558-1/-2-16,EAC TP TC 004 , BSMI CNS15598-1 approved
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16(OVC Ⅱ, altitude up to 2000m); IEC/EN/UL 62368-1(OVC Ⅱ, altitude up to 2000m)
WITHSTAND VOLTAGE: I/P-O/P:4.2KVac
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500Vdc / 25℃/ 70% RH
EMC EMISSION: Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS15936 Class B
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, heavy industry level (surge L-N : 1KV), EAC TP TC 020

OTHERS

MTBF: 13571.4K hrs min. Telcordia SR-332 (Bellcore) ; 1960.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 33.7*22.2*15mm (L*W*H)
PACKING: 0.024Kg; 640pcs/ 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

IRM-01-9 Derating Curve — Derating Curve

Typical applications

Industrial electrical equipment
Mechanical equipment
Factory automation equipment
Handheld electronic device

Downloads

Datasheet1

IRM-01-9 datasheetIRM-01-SPEC.PDF · 2026-07-01 edition PDF Download

Certificates4

EMC Certificate (IRM-01)(EN) PDF Download

UL Certificate (IRM-01)(EN) PDF Download

CB Certificate (IRM-01)(EN) PDF Download

TUV Certificate (IRM-01)(EN) PDF Download

Test reports1

Test Report (IRM-01-9)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-01-9 for a low-power 9V industrial or embedded circuit?

Yes, if the circuit needs a regulated 9V DC supply and stays within the 1W output rating. This constant voltage model is sized for small embedded, sensing, or control electronics rather than higher-power 9V equipment.

Is the IRM-01-9 suitable for compact instrumentation or analog support circuits?

It can be suitable for low-consumption 9V sections in instrumentation or signal-processing hardware. The 85-305VAC input range and 33.7 × 22.2 × 15.0 mm package support compact internal power conversion on the PCB.

Can this model power a small alarm, control, or monitoring module that runs on 9V?

Yes, when the module is a low-power 9V load and the total demand remains within 1W. It is best matched to light control and monitoring electronics, not larger devices that need more output capacity.

Is the IRM-01-9 designed for outdoor installations?

The operating temperature range is -30°C to +85°C, with output derating at higher ambient temperatures per the derating curve. No IP rating is specified, which means it should be considered an internal encapsulated module for protected enclosures rather than exposed outdoor use.

How does the IRM-01-9 sit within the wider IRM encapsulated series?

In the 1W IRM-01 series, the adjacent outputs are 3.3V 300mA, 5V 200mA, 9V 111mA, 12V 83mA, 15V 67mA, and 24V 42mA. All share the 85-305VAC input, 33.7 × 22.2 × 15 mm encapsulated package and the same protections, while typical efficiency rises from 66% at 3.3V to 77% at 24V, with 72% for the 9V model.

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.

Please log in to write a review.

{ "id":8656030662976, "variants" :[{ "context":"default", "variant_id": 46625299693888, "sku":"IRM-01-9", "inventory_qty" : 6, "customer" :true, "custom_html" :"\u003cdiv class=\"price\"\u003e\n \u003cdiv class=\"price__default\"\u003e\n \u003cstrong class=\"price__current\"\u003e$7.25\u003c\/strong\u003e\n \u003cs class=\"price__was\"\u003e\u003c\/s\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"unit-price relative\" hidden\u003e\u003cspan class=\"visually-hidden\"\u003eUnit price\u003c\/span\u003e\u003cspan class=\"unit-price__price\"\u003e\u003c\/span\u003e\u003cspan class=\"unit-price__separator\"\u003e \/ \u003c\/span\u003e\u003cspan class=\"unit-price__unit\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n \u003cdiv class=\"price__no-variant\" hidden\u003e\n \u003cstrong class=\"price__current\"\u003eUnavailable\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }