# AC/DC PCB Mount Power Supply (PSU), ITE, 1 Output, 3 W, 3.3 VDC, 900 mA
**URL**: https://novapart.co/products/IRM-03-3.3S/ac-dc-pcb-mount-power-supply-psu-ite-1-output-3-w
**SKU**: IRM-03-3.3S
**Manufacturer**: MEAN WELL
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC PCB Mount Power Supplies
**Price**: €6.9100
**Stock**: 10+
**Lead Time**: 134 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Depth | 37mm |
| Width | 24mm |
| Height | 16mm |
| Product Range | IRM-03 Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 3W |
| Input Voltage Vac | 85V AC to 305V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 900mA |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 3.3VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Power Supply Applications | ITE |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3253355/)
**- IRM 03 series**
3W Single Output Encapsulated Type
## ■
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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
## ■
IRM-03 is a 3W miniature (37*24*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 80% and the extremely low no-load power consumption below 0.075W, IRM-03 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-03 series also offers the SMD style model.
## ■
{
_File Name:IRM-03-SPEC 2018-12-14_
**- IRM 03 series**
3W Single Output Encapsulated Type
## **SPECIFICATION**
|**MODEL**
**DC VOLTAGE**
**RATED CURRENT**
**CURRENT RANGE**
**RATED POWER**
**OUTPUT**
**LINE REGULATION**
**LOAD REGULATION**
**SETUP, RISE TIME**
**HOLD UP TIME (Typ.)**
**VOLTAGE RANGE**
**FREQUENCY RANGE**
**EFFICIENCY (Typ.)**
**INPUT**
**INRUSH CURRENT (Typ.)**
**WITHSTAND VOLTAGE**
**ISOLATION RESISTANCE**
**WORKING HUMIDITY**
**WORKING TEMP.**
**STORAGE TEMP., HUMIDITY**
**TEMP. COEFFICIENT**
**VIBRATION**
**MTBF**
**DIMENSION**
**OTHERS**
**PACKING**
**OVERLOAD**
**OVER VOLTAGE**
**AC CURRENT (Typ.)**
600ms, 30ms/230VAC 600ms, 30ms/115VAC at full load
40ms/230VAC 8ms/115VAC at full load
85 ~ 305VAC 120~430VDC
47 ~ 63Hz
68%
5.2~ 6.8V
10.3 ~ 12.2V
12.6 ~ 16.2V
15.75 ~ 20.3V
70mA/115VAC 40mA/230VAC 35mA/277VAC
10A/115VAC 20A/230VAC
105%~260% rated output power
3.8 ~ 4.9V
Protection type : Hiccup mode, recovers automatically after fault condition is removed
20 ~ 90% RH non-condensing
-30 ~ +85
(Refer to "Derating Curve")
℃
-40 ~ +100
, 10 ~ 95% RH
℃
±
℃
℃
0.03%/
(0 ~ 50
)
10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
2137.6Khrs min. MIL-HDBK-217F (25
)
℃
PCB mounting style : 37*24*15mm (L*W*H) SMD style : 37*24*16mm (L*W*H)
PCB mounting style : 0.026Kg;560pcs/15.3Kg/0.96CUFT
SMD style :0.026Kg;560pcs/15.3Kg/0.96CUFT
±1.0%
±0.5%
±2.5%
100mVp-p
900mA
0 ~ 900mA
3W
**IRM-03-3.3**
**SAFETY STANDARDS**
**RIPPLE & NOISE (max.) Note.2**
**VOLTAGE TOLERANCE Note.3**
℃
℃
℃
**ENVIRONMENT**
**SAFETY &**
**EMC**
**PROTECTION**
Protection type : Shut off o/p voltage, clamping by zener diode
Compliance to EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class B
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
I/P-O/P:3KVAC
I/P-O/P:100M Ohms / 500VDC / 25
/ 70% RH
℃
3.3V
**EMC IMMUNITY**
**EMC EMISSION**
**LEAKAGE CURRENT**
< 0.25mA/277VAC
±0.5%
±0.5%
±2.5%
100mVp-p
600mA
0 ~ 600mA
3W
**IRM-03-5**
5V
±0.5%
±0.5%
±2.5%
100mVp-p
333mA
0 ~ 333mA
3W
**IRM-03-9**
9V
±0.5%
±0.5%
±2.5%
150mVp-p
250mA
0 ~ 250mA
3W
**IRM-03-12**
12V
±0.5%
±0.5%
±2.5%
200mVp-p
200mA
0 ~ 200mA
3W
**IRM-03-15**
15V
±0.5%
±0.5%
±2.5%
240mVp-p
125mA
0 ~ 125mA
3W
**IRM-03-24**
24V
72%
77%
78%
78%
80%
25.2 ~ 32.4V
**LEAD TEMPERATURE**
260
,10s (max.)
℃
UL60950-1, TUV EN60950, TUV EN60335-1, EAC TP TC 004 BSMI CNS14336-1 approved,
,
design refer to EN61558-2-16 , IEC60601-1 (By request)
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~~ee~~
Ge
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~~GG~~
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Ge
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ee
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Ge
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~~eG~~
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aI
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Cese
PC
Ceee
rs
Rs
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~~Pe~~
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NOTE
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).|**MODEL**
**DC VOLTAGE**
**RATED CURRENT**
**CURRENT RANGE**
**RATED POWER**
**OUTPUT**
**LINE REGULATION**
**LOAD REGULATION**
**SETUP, RISE TIME**
**HOLD UP TIME (Typ.)**
**VOLTAGE RANGE**
**FREQUENCY RANGE**
**EFFICIENCY (Typ.)**
**INPUT**
**INRUSH CURRENT (Typ.)**
**WITHSTAND VOLTAGE**
**ISOLATION RESISTANCE**
**WORKING HUMIDITY**
**WORKING TEMP.**
**STORAGE TEMP., HUMIDITY**
**TEMP. COEFFICIENT**
**VIBRATION**
**MTBF**
**DIMENSION**
**OTHERS**
**PACKING**
**OVERLOAD**
**OVER VOLTAGE**
**AC CURRENT (Typ.)**
600ms, 30ms/230VAC 600ms, 30ms/115VAC at full load
40ms/230VAC 8ms/115VAC at full load
85 ~ 305VAC 120~430VDC
47 ~ 63Hz
68%
5.2~ 6.8V
10.3 ~ 12.2V
12.6 ~ 16.2V
15.75 ~ 20.3V
70mA/115VAC 40mA/230VAC 35mA/277VAC
10A/115VAC 20A/230VAC
105%~260% rated output power
3.8 ~ 4.9V
Protection type : Hiccup mode, recovers automatically after fault condition is removed
20 ~ 90% RH non-condensing
-30 ~ +85
(Refer to "Derating Curve")
℃
-40 ~ +100
, 10 ~ 95% RH
℃
±
℃
℃
0.03%/
(0 ~ 50
)
10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
2137.6Khrs min. MIL-HDBK-217F (25
)
℃
PCB mounting style : 37*24*15mm (L*W*H) SMD style : 37*24*16mm (L*W*H)
PCB mounting style : 0.026Kg;560pcs/15.3Kg/0.96CUFT
SMD style :0.026Kg;560pcs/15.3Kg/0.96CUFT
±1.0%
±0.5%
±2.5%
100mVp-p
900mA
0 ~ 900mA
3W
**IRM-03-3.3**
**SAFETY STANDARDS**
**RIPPLE & NOISE (max.) Note.2**
**VOLTAGE TOLERANCE Note.3**
℃
℃
℃
**ENVIRONMENT**
**SAFETY &**
**EMC**
**PROTECTION**
Protection type : Shut off o/p voltage, clamping by zener diode
Compliance to EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class B
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
I/P-O/P:3KVAC
I/P-O/P:100M Ohms / 500VDC / 25
/ 70% RH
℃
3.3V
**EMC IMMUNITY**
**EMC EMISSION**
**LEAKAGE CURRENT**
< 0.25mA/277VAC
±0.5%
±0.5%
±2.5%
100mVp-p
600mA
0 ~ 600mA
3W
**IRM-03-5**
5V
±0.5%
±0.5%
±2.5%
100mVp-p
333mA
0 ~ 333mA
3W
**IRM-03-9**
9V
±0.5%
±0.5%
±2.5%
150mVp-p
250mA
0 ~ 250mA
3W
**IRM-03-12**
12V
±0.5%
±0.5%
±2.5%
200mVp-p
200mA
0 ~ 200mA
3W
**IRM-03-15**
15V
±0.5%
±0.5%
±2.5%
240mVp-p
125mA
0 ~ 125mA
3W
**IRM-03-24**
24V
72%
77%
78%
78%
80%
25.2 ~ 32.4V
**LEAD TEMPERATURE**
260
,10s (max.)
℃
UL60950-1, TUV EN60950, TUV EN60335-1, EAC TP TC 004 BSMI CNS14336-1 approved,
,
design refer to EN61558-2-16 , IEC60601-1 (By request)
~~eG GG~~
Re
eG
Ge
~~eG~~ GO
~~ee~~
Ge
Qe
~~GG~~
Re
eG
Ge
~~Pe~~
ee
eG
Ge
IRe
a
Re
~~eG~~
Re
aI
Re
Cese
PC
Ceee
rs
Rs
es
~~Pe~~
ee
a
Ia
re
a~~Ce~~
NOTE
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).|**IRM-03-3.3**
~~eG~~|**IRM-03-5**
~~eG~~|**IRM-03-9**
~~GG~~|**IRM-03-12**
~~GG~~|**IRM-03-15**
~~GG~~|**IRM-03-24**|
|---|---|---|---|---|---|---|---|
||**DC VOLTAGE**
~~eG~~
Re|3.3V
~~eG~~
eG|5V
~~eG~~
eG|9V
~~GG~~
Ge|12V
~~GG~~|15V
~~GG~~|24V|
||**RATED CURRENT**
~~eG~~
Re
~~eG~~|900mA
~~eG~~
eG
~~eG~~|600mA
~~eG ~~
eG
~~eG~~|333mA
~~GG~~
Ge
GO|250mA
~~GG~~
GO|200mA
~~GG~~
GO|125mA|
||**CURRENT RANGE**
Re
~~eG~~|0 ~ 900mA
eG
~~eG~~|0 ~ 600mA
eG
~~eG~~
Ge|0 ~ 333mA
Ge
GO
Qe|0 ~ 250mA
GO|0 ~ 200mA
GO|0 ~ 125mA|
||**RATED POWER**
~~eG~~
~~ee~~|3W
~~eG~~
~~ee~~|3W
~~eG~~
~~ee~~
Ge|3W
GO
~~ee~~
Qe|3W
GO
~~ee~~|3W
GO
~~ee~~|3W
~~ee~~|
||**RIPPLE & NOISE (max.) Note.2**
~~ee~~
~~GG~~
Re|100mVp-p
~~ee~~
~~GG~~
eG|100mVp-p
~~ee~~
Ge
~~GG~~
eG|100mVp-p
~~ee~~
Qe
~~GG~~
Ge|150mVp-p
~~ee~~
~~GG~~|200mVp-p
~~ee~~
~~GG~~|240mVp-p
~~ee~~
~~GG~~|
||**VOLTAGE TOLERANCE Note.3**
~~GG~~
Re|±2.5%
~~GG~~
eG|±2.5%
~~GG~~
eG|±2.5%
~~GG~~
Ge|±2.5%
~~GG~~|±2.5%
~~GG~~|±2.5%
~~GG~~|
||**LINE REGULATION**
Re
~~Pe~~
ee|±0.5%
eG
~~Pe~~
eG|±0.5%
eG
~~Pe~~
eG|±0.5%
Ge
~~Pe~~
Ge|±0.5%
~~Pe~~|±0.5%
~~Pe~~|±0.5%
~~Pe~~|
||**LOAD REGULATION**
~~Pe~~
ee
I|±1.0%
~~Pe~~
eG|±0.5%
~~Pe~~
eG|±0.5%
~~Pe~~
Ge|±0.5%
~~Pe~~|±0.5%
~~Pe~~|±0.5%
~~Pe~~|
||**SETUP, RISE TIME**
ee
IRe|600ms, 30ms/230VAC 600ms, 30ms/115VAC at full load
eG
Ge||||||
||**HOLD UP TIME (Typ.)**
IRe|40ms/230VAC 8ms/115VAC at full load||||||
||**VOLTAGE RANGE**
Re
a
Re|85 ~ 305VAC 120~430VDC||||||
||**FREQUENCY RANGE**
Re|47 ~ 63Hz||||||
||**EFFICIENCY (Typ.)**
Re
~~eG~~
Re|68%
~~eG~~|72%
~~eG~~|77%
~~eG~~|78%
~~eG~~|78%
~~eG~~|80%
~~eG~~|
||**AC CURRENT (Typ.)**
Re
a|70mA/115VAC 40mA/230VAC 35mA/277VAC||||||
||**INRUSH CURRENT (Typ.)**
Re
aI
Re|10A/115VAC 20A/230VAC
Re||||||
||**LEAKAGE CURRENT**
aI
Re|< 0.25mA/277VAC
Re||||||
||**OVERLOAD**
I
Re
Ce|105%~260% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Re
Ce||||||
||**OVER VOLTAGE**
Ce
PC
Ce|5.2~ 6.8V
10.3 ~ 12.2V
12.6 ~ 16.2V
15.75 ~ 20.3V
3.8 ~ 4.9V
Protection type : Shut off o/p voltage, clamping by zener diode
25.2 ~ 32.4V
Cese
PC||||||
||**WORKING TEMP.**
PC
Ceee|-30 ~ +85
(Refer to "Derating Curve")
℃
PC||||||
||**WORKING HUMIDITY**
PC
Ceee
rs|20 ~ 90% RH non-condensing
PC||||||
||**STORAGE TEMP., HUMIDITY**
ee
rs
Rs|-40 ~ +100
, 10 ~ 95% RH
℃||||||
||**TEMP. COEFFICIENT**
rs
Rs
es|±
℃
℃
0.03%/
(0 ~ 50
)||||||
||**VIBRATION**
Rs
es|10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes||||||
||**LEAD TEMPERATURE**
es
~~Pe~~|260
,10s (max.)
℃
~~Pe~~||||||
||**SAFETY STANDARDS**
~~Pe~~
ee|UL60950-1, TUV EN60950, TUV EN60335-1, EAC TP TC 004 BSMI CNS14336-1 approved,
,
design refer to EN61558-2-16 , IEC60601-1 (By request)
~~Pe~~||||||
||**WITHSTAND VOLTAGE**
ee|I/P-O/P:3KVAC||||||
||**ISOLATION RESISTANCE**
ee
a
I|I/P-O/P:100M Ohms / 500VDC / 25
/ 70% RH
℃||||||
||**EMC EMISSION**
I|Compliance to EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class B||||||
||**EMC IMMUNITY**
Ia
re|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||||||
||**MTBF**
a
re|2137.6Khrs min. MIL-HDBK-217F (25
)
℃||||||
||**DIMENSION**
re
a|PCB mounting style : 37*24*15mm (L*W*H) SMD style : 37*24*16mm (L*W*H)
||||||
_File Name:IRM-03-SPEC 2018-12-14_
**- IRM 03 series**
3W Single Output Encapsulated Type
## **Block Diagram**
**==> picture [480 x 333] intentionally omitted <==**
**----- Start of picture text -----**
fosc : 130KHz
EMI RECTIFIERS POWER RECTIFIERS +V
I/P & &
FILTER SWITCHING -V
FILTER FILTER
PWM
CONTROL DETECTION
CIRCUIT
Derating Curve Output Derating VS Input Voltage
100
100
90
80
80
60 70
50
60
40
50
20
40
-30 0 10 20 30 40 50 60 70 85 (HORIZONTAL) 85 95 100 120 140 160 180 200 220 240 305
AMBIENT TEMPERATURE ( ℃ ) INPUT VOLTAGE (VAC) 60Hz
LOAD (%) LOAD (%)
**----- End of picture text -----**
_File Name:IRM-03-SPEC 2018-12-14_
**- IRM 03 series**
## 3W Single Output Encapsulated Type
## **Mechanical Specification**
**==> picture [472 x 421] intentionally omitted <==**
**----- Start of picture text -----**
Case No.IRM03 Unit:mm[inch]
� PCB mounting style Tolerance:±0.5[±0.02]
unless otherwise specified
37[1.46]
3.26[0.13] 25.4[1]
15[0.59]
5.08[0.2]
3.5±1mm
AC/L AC/N 2-Ø4.5[0.177] NC
BOTTOM
VIEW
+V -V
10.28[0.404] 16.44[0.647] 3.26[0.13]
5.08[0.2] PIN diameter:0.6±0.1[0.024±0.004]
� SMD style
0.25±0.1[0.01±0.004]
1.5[0.059]
Pin NO. Assignment
28.9[1.14]
24[0.94] 1 AC/L
26 1 3 AC/N
24 3
14 -Vo
0.5±0.1[0.02±0.004] 22 5
BOTTOM
VIEW 2-Ø4.5[0.177] 16 +Vo
17 10 others NC
16 11
1.0[0.04] 15 12
14 13
12[0.47] 15.6[0.61]
16[0.63]
3.26[0.13]
37[1.46] 2.54[0.10]
[0.647]
16.44
[0.404]
10.28
12[0.47]
[0.94]
24
3.11[0.12]
[0.1]
17.78
0.6
**----- End of picture text -----**
## **Recommended PCB layout (for SMD style) (Reflow soldering method available)**
**==> picture [385 x 114] intentionally omitted <==**
**----- Start of picture text -----**
240 Peak. Temp 24010 sec. Max. ℃
2.54mm 220 220℃
60 sec. Max.
26 24 22 17 16 15 14 (>220℃)
150
TOP VIEW 100
50
1 3 5 10 11 12 13
2.03[0.08] 0
Time(sec.)
1.5[0.06] 2.54[0.1] Remark : The curve applies only to the " Hot Air Reflow Soldering"
2.54mm
30.1[1.19] 28.07[1.1]
℃)
Temperature (
**----- End of picture text -----**
## **Installation Manual**
Please refer to : http://www.meanwell.com/manual.html
_File Name:IRM-03-SPEC 2018-12-14_
## Links
- [View this product on Novapart](https://novapart.co/products/IRM-03-3.3S/ac-dc-pcb-mount-power-supply-psu-ite-1-output-3-w)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/mean-well/irm-03-3-3s/power-supply-ac-dc-3-3v-0-9a/dp/3253355)
---
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