AJM90 Series AC-DC Power Supplies
• Energy Efficiency Level VI
• Medical and ITE Safety Approvals
• 4th Edition Medical EMC
• Class I and Class II Versions
• <0.21 W Standby Power
• 0 °C to 60 °C Operation
• Low Earth Leakage Current
• 3 Year Warranty
90 Watts
Dimensions:
AJM90:
5.51 x 2.8 x 0.87” (140.0 x 71.0 x 22.0 mm)
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1
Models & Ratings
Notes
Output Power Output Voltage Output Current Total Regulation Efficiency(1) Model Number(2)
90 W
12.0 V 7.50 A
±5%
88% AJM90PS12
18.0 V 5.00 A 89% AJM90PS18
19.0 V 4.74 A 90% AJM90PS19
24.0 V 3.75 A 90% AJM90PS24
1. Typical average of efficiencies measured at 25%, 50%, 75% and 100% load and 230 VAC input.
2. For class II versions, add suffix 'C2' to the end of the part number e.g. AJM90PS24C2. Class II versions do not have ITE approvals.
59.0 (1500.0)
Pin 4(+) Pin 2(+)
Pin 3(-) Pin 1(-)
0.26 (6.5)
0.39
(10.0) With Lock
4.72 (120.0) 3.15 (80.0)
1.6 (42.4) 1.18 (30.0)
0.94 (24.0)
0.59 (15.0) Wire no. UL11352
Gauge: 18 AWG
Colour: Black
1.5 (39.0)
5.5 (140.0)
0.86 (22.0)
0.29
(7.4)
0.29
(7.4)
Optional C2 Version
IEC320-C8 Inlet
IEC320-C6
Inlet
2.8
(71.0)
1. All dimensions shown in inches (mm). Tolerance is 0.02 (0.5) maximum, except
output cable length.
2. Output connector: Locking Power Mini DIN, mates with Kycon KPJX-4S or
equivalent.
3. Weight: 0.77 lbs (350 g) approx.
4. For European mains lead order part EU-MAINS-5 or EU-MAINS-8 for C2 versions.
5. For UK mains lead order part UK-MAINS-5 or UK-MAINS-8 for C2 versions.
6. For US mains lead order part US-MAINS-5 or US-MAINS-8 for C2 versions.
Notes
Mechanical Details
Pin Function
1 Return
2 Output +
3 Return
4 Output +
Shell Return
Pin Connector
AJM90 Series
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AC-DC Power Supplies
Input
Characteristic Minimum Typical Maximum Units Notes & Conditions
Input Voltage 80 264 VAC Derate output power below 90 VAC to 90% at 85 VAC and
85% at 80 VAC
Input Frequency 47 63 Hz
Input Current 1.5/0.6 A Measured at 115/230 VAC
Inrush Current 60/100 A 115/230 VAC, cold start at 25 °C
Power Factor 0.9 EN61000-3-2 Class A
Earth Leakage Current 220 250 µA 264 VAC, 60 Hz
No Load Input Power 0.21 W
Input Protection T3.15A/250 VAC internal fuse in both line
Output
Characteristic Min. Typ. Max. Units Notes & Conditions
Output Voltage 12 48 VDC See Models and Ratings table
Initial Set Accuracy ±2 % At 50% load
Minimum Load No minimum load required
Start Up Delay 3s
Start Up Rise Time 50 ms
Hold Up Time 10 ms Full load and 115 VAC
Line Regulation ±0.5 %
Total Regulation ±5 %
Transient Response 4%
Maximum deviation, recovering to less than 1% within
500 µs for 25% step load
Ripple and Noise 1 % pk-pk
150 mV pk-pk for 12 V model, measured with 20 MHz
bandwidth and 10 µF electrolytic in parallel with 0.1 µF
ceramic capacitor.
Overshoot 5%At turn on / turn off
Overload Protection 115 175 %
Overvoltage Protection 112 150 % Recycle mains to reset
Short Circuit Protection Trip and restart (hiccup), auto resetting
Thermal Protection Measured internally, recycle AC to reset
Temperature Coefficient 0.04 %/°C
Patient Leakage Current 100 µ A 264 VAC, 60 Hz
Environmental
Characteristic Minimum Typical Maximum Units Notes & Conditions
Operating Temperature 0 +60 °C Derate from 100% load at 40 °C to 50% load at 60 °C
Cooling Natural convection
Operating Humidity 5 90 %RH Non-condensing
Storage Temperature -40 +85 °C
Operating Altitude 5000 m
Shock IEC68-2-27, 30 g, 11 ms half sine, 3 times in each of 6 axes
Vibration IEC68-2-6, 10-500 Hz, 2 g 10 mins/sweep, 60 mins for each of 3 axes
Derating Curve
60%
20%
40%
80%
Ambient Temperature (ºC)
Output Power (%)
100%
40 60
20
0
AJM90 Series
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AC-DC Power Supplies
EMC: Emissions
Phenomenon Standard Test Level Notes & Conditions
Emissions EN55011 Level B Conducted & Radiated
Harmonic Current EN61000-3-2 Class A
Voltage Flicker EN61000-3-3
General
Characteristic Minimum Typical Maximum Units Notes & Conditions
Efficiency 90 % See Models and Ratings table and curves.
Isolation: Input to Output
Input to Ground
Output to Ground
4000 VAC 2 x MOPP
1500 VAC 1 x MOPP (Class I versions only)
1500 VAC 1 x MOPP (Class I versions only)
Switching Frequency 105/100 kHz PFC/Main Converter
Power Density 4.55 W/in3
Mean Time Between Failure >100 kHrs MIL-HDBK-217F at 25 °C GB
Weight 0.77 (350) lb (g)
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10 20 30 40 50 60 70 80 90 100
Efficiency
Load (%)
115Vac input
230Vac input
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10 20 30 40 50 60 70 80 90 100
Efficiency
Load (%)
115Vac input
230Vac input
Efficiency Curves
AJM90PS12
AJM90PS24
Safety Approvals
EMC: Immunity
Phenomenon Standard Test Level Criteria Notes & Conditions
ESD EN61000-4-2 ±15 kV Air, ±8 kV contact A
Radiated EN61000-4-3 10 V/m A Class I is 3 V/m, Class II is 10 V/m
80-2700 MHz. IEC60601-1-2 Ed.4 at other frequencies
EFT/Burst EN61000-4-4 3A
Surge EN61000-4-5 Installation Class 3 A
Conducted EN61000-4-6 6 V A
Magnetic Fields EN61000-4-8 30 A/m A
Dips and Interruptions
EN61000-4-11
Dip: 30% 500 ms A/B High Line/Low Line
Dip: 60% 200 ms A/B High Line/Low Line
Int: 100% 5000 ms B
Int: 100% 10 ms A
EN60601-1-2
Dip: 30% 500 ms A/B High Line/Low Line
Dip: 60% 100 ms A/B High Line/Low Line
Int: 100% 5000 ms B
Int: 100% 10 ms A
Safety Agency Safety Standard Notes & Conditions
UL ANSI/AAMI ES 60601-1
Medical
CSA CSA C22.2 No. 60601
TUV EN60601-1
CB IEC60601-1
UL UL60950-1
ITE, on class I version only
TUV EN60950-1
CB IEC60950-1
AU/NZ AU/NZ 60950.1
AJM90 Series
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AC-DC Power Supplies
59.0 (1500.0)
Pin 4(+) Pin 2(+)
Pin 3(-) Pin 1(-)
0.26 (6.5)
0.39
(10.0) With Lock
4.72 (120.0) 3.15 (80.0)
1.6 (42.4) 1.18 (30.0)
0.94 (24.0)
0.59 (15.0) Wire no. UL11352
Gauge: 18 AWG
Colour: Black
1.5 (39.0)
5.5 (140.0)
0.86 (22.0)
0.29
(7.4)
0.29
(7.4)
Optional C2 Version
IEC320-C8 Inlet
IEC320-C6
Inlet
2.8
(71.0)
1. All dimensions shown in inches (mm). Tolerance is 0.02 (0.5) maximum, except
output cable length.
2. Output connector: Power Mini DIN, mates with Kycon KPJX-4S or equivalent.
3. Weight: 0.77 lbs (350 g) approx.
4. For European mains lead order part EU-MAINS-5 or EU-MAINS-8 for C2 versions.
5. For UK mains lead order part UK-MAINS-5 or UK-MAINS-8 for C2 versions.
6. For US mains lead order part US-MAINS-5 or US-MAINS-8 for C2 versions.
Notes
Mechanical Details
14 Feb 19
Pin Function
1 Return
2 Output +
3 Return
4 Output +
Shell Return
Pin Connector
