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145 x 60 x 32mm | 90~264VAC / 127~370VDC Input | 5 Output Models 12V ~ 48VDC | 80W~90W | 3-Pole IEC320-C14 AC Inlet | Class I with Protective Earth | Active PFC, PF>0.95 | No-Load <0.15W | Efficiency Level VI | Leakage 1mA Max | -30~+70C | 3-Year Warranty
The MEAN WELL GST90A series is a high-reliability 90W AC-DC desktop single-output green adapter built into a fully enclosed plastic housing. It connects to mains through a 3-pole IEC320-C14 inlet and is a Class I power supply with protective earth. Input range is 90~264VAC or 127~370VDC, and the series covers five output voltages from 12V to 48VDC, serving consumer electronic devices, telecom equipment, office equipment and industrial equipment.
This is the only series in the GST desktop family with active power factor correction: power factor is above 0.91 at 230VAC and above 0.95 at 115VAC at full load, which keeps input current and harmonic distortion low on high-power installations. Because the input is 3-pole, the chassis is bonded to earth. Withstand voltage is 3KVAC input-to-output, 2KVAC input-to-FG and 0.5KVAC output-to-FG, with insulation resistance of 100M Ohms minimum at 500VDC. The 94V-0 flame-retardant enclosure is fully sealed, so no live part is exposed in normal operation. Note that this is an ITE product: maximum leakage current is 1mA at 240VAC, so for patient-contact medical equipment choose a 60601-1 certified adapter from the GSM series instead.
Efficiency reaches 91% on the 48V model with no-load power consumption below 0.15W across the series, meeting Efficiency Level VI and complying with USA EISA 2007/DoE, Canada NRCan, Korea K-MEPS, AU/NZ MEPS, EU ErP and CoC Version 5. Safety approvals cover UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1, AS/NZS 62368.1, BIS IS13252, KC K60950-1 and EAC TP TC 004, with conducted and radiated emissions held to Class B limits.
The standard DC output plug is the P1M (5.5 x 2.5 x 11mm tuning fork, center positive) - the 2.5mm centre pin is used here because of the higher output current. In the standard version the negative output is not connected to AC FG. Tuning fork, barrel, lock, min. pin, center pin and DIN style plugs can be fitted at the factory, and a quick-change DC plug adapter is available for the P1 series plug and the R7B 4-pin DIN plug. Protections cover short circuit, overload (110%~150% of rated power, hiccup mode with auto-recovery), over voltage (105%~135% of rated output voltage, shutdown output and restart to recover) and over temperature (shutdown output, restart after the unit cools down). The 145 x 60 x 32mm adapter weighs 450g, operates from -30C to +70C and is backed by a 3-year warranty.
Output ratings for all five GST90A models. All values measured at 230VAC input, rated load, 25C / 70%RH unless otherwise noted.
| Model | Output Voltage | Rated Current | Current Range | Rated Power (Max) | Efficiency (Typ.) |
|---|---|---|---|---|---|
| GST90A12-P1M | 12V | 6.67A | 0 ~ 6.67A | 80W | 89% |
| GST90A15-P1M | 15V | 6A | 0 ~ 6A | 90W | 89.5% |
| GST90A19-P1M | 19V | 4.74A | 0 ~ 4.74A | 90W | 90% |
| GST90A24-P1M | 24V | 3.75A | 0 ~ 3.75A | 90W | 90% |
| GST90A48-P1M | 48V | 1.87A | 0 ~ 1.87A | 90W | 91% |
| Model | Ripple & Noise (Max) | Voltage Tolerance | Line Regulation | Load Regulation |
|---|---|---|---|---|
| GST90A12-P1M | 120mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST90A15-P1M | 150mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST90A19-P1M | 180mVp-p | ±4.0% | ±1.0% | ±4.0% |
| GST90A24-P1M | 200mVp-p | ±3.0% | ±1.0% | ±3.0% |
| GST90A48-P1M | 200mVp-p | ±2.5% | ±1.0% | ±2.5% |
Overload and over-voltage protection are specified once for the whole series rather than per model: overload trips at 110%~150% of rated output power in hiccup mode with automatic recovery, and over-voltage trips at 105%~135% of rated output voltage, shutting the output down until the unit is restarted. Both are listed in full in the Input & Protection table below.
| Style | Type | Model | OD x ID x L (mm) | Quick-Change Adapter |
|---|---|---|---|---|
| Standard | Tuning fork, center positive | P1M | 5.5 x 2.5 x 11.0 | Factory fitted |
| Tuning Fork | Straight | P1I / P1L / P1J | 5.5 x 2.1 x 9.5 / 5.5 x 2.5 x 9.5 / 5.5 x 2.1 x 11.0 | P1J only (7.5A max) |
| Tuning Fork | Right-angled | P1IR / P1JR / P1LR / P1MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | P1JR only (7.5A max) |
| Barrel | Straight | P2I / P2J / P2L / P2M | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Barrel | Right-angled | P2IR / P2JR / P2LR / P2MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | Floating locking | P2S (S761K) / P2K (761K) | 5.53 x 2.03 x 12.06 / 5.53 x 2.54 x 12.06 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | - | P2C (S760K) / P2D (760K) | 5.53 x 2.03 x 9.52 / 5.53 x 2.54 x 9.52 | Not available |
| Min. Pin (EIAJ equivalent) | - | P3A / P3B / P3C | 2.35 x 0.7 x 11.0 / 4.0 x 1.7 x 11.0 / 4.75 x 1.7 x 11.0 | Not available |
| Center Pin (EIAJ equivalent) | - | P4A / P4B / P4C | 5.5 x 3.4 x 11.0 (pin 1.0) / 6.5 x 4.4 x 11.0 (pin 1.4) / 7.4 x 5.1 x 11.0 (pin 0.6) | Not available |
| Min. DIN 3 Pin with Lock (male) | KYCON KPPX-3P equivalent | R6B | - | Not available |
| Min. DIN 4 Pin with Lock (male) | KYCON KPPX-4P equivalent | R7B | - | Available (7.5A max) |
| Min. DIN 4 Pin with Lock (female) | KYCON KPJX-CM-4S equivalent | R7BF | - | Not available |
| DIN 5 Pin (male) | - | R1B | - | Not available |
| Stripped & tinned leads | Custom | Custom (MOQ required) | Red +Vo / Black -Vo | standard L: 25mm, L1: 5mm | Not available |
Note: quick-change adapter availability is listed per plug family as published in the MEAN WELL datasheet. On the GST90A only the P1 tuning-fork plug (P1J / P1JR) and the R7B 4-pin DIN plug accept a quick-change adapter, rated 7.5A maximum; every other style is factory-fit only and requires a minimum order quantity. Wire colors on stripped-lead versions are for reference only. In the standard P1M version the negative output (-V) is not connected to AC FG - tell us if your end device expects the output referenced to earth.
| AC Input Range | 90~264VAC | 47~63Hz |
| DC Input Range | 127~370VDC |
| AC Inlet | 3-pole IEC320-C14 inlet | Class I construction with protective earth |
| Power Factor (Typ.) | PF>0.91 / 230VAC | PF>0.95 / 115VAC at full load | Active PFC |
| AC Current (Typ.) | 1.3A / 115VAC | 0.6A / 230VAC |
| Inrush Current (Max.) | Cold start 35A / 115VAC | 70A / 230VAC |
| Leakage Current (Max.) | 1mA / 240VAC |
| Efficiency | 89%~91% depending on model | Efficiency Level VI for the whole series | Complies with USA EISA 2007/DoE, Canada NRCan, Korea K-MEPS, AU/NZ MEPS, EU ErP and CoC Version 5 |
| No-Load Power Consumption | <0.15W |
| Set Up / Rise Time | 1000ms, 50ms / 230VAC | 1000ms, 50ms / 115VAC at full load |
| Hold Up Time (Typ.) | 20ms / 230VAC | 20ms / 115VAC at full load |
| Overload Protection | 110%~150% of rated output power | Hiccup mode, auto-recovery after the fault condition is removed |
| Over-Voltage Protection | 105%~135% of rated output voltage | Output shutdown, restart to recover |
| Over-Temperature Protection | Output shutdown, restart to recover after the unit cools down |
| Operating Temp / Humidity | -30~+70C (refer to derating curve) | 20~90% RH non-condensing |
| Storage Temp / Humidity | -40~+85C | 10~95% RH non-condensing |
| Temp Coefficient | ±0.03%/C (0~40C) |
| Vibration | 10~500Hz, 2G, 10min/cycle, 60min each along X, Y, Z axis |
| DC Output Cable | UL1185 14AWG 1000±50mm for 12~15V models | UL1185 16AWG 1200±50mm for 19~48V models |
| MTBF | 2529.4K hrs min. Telcordia SR-332 (Bellcore) | 389.3K hrs min. MIL-HDBK-217F (25C) |
| Dimensions / Packing | 145 x 60 x 32mm (L*W*H) | 0.45Kg; 30pcs / 14.05Kg / 0.9CUFT per carton |
| Enclosure Model / Indicator | Enclosure model GS90A | Power-on LED indicator on the housing |
| ITE Safety Standards | UL62368-1; CSA C22.2 No.62368-1; TUV BS EN/EN62368-1; BSMI CNS15598-1; CCC GB4943.1; PSE J62368-1; AS/NZS 62368.1; BIS IS13252; KC K60950-1; EAC TP TC 004 |
| Protection Class | Class I (protective earth bonded through the 3-pole IEC320-C14 inlet) |
| Withstand Voltage | I/P-O/P: 3KVAC | I/P-FG: 2KVAC | O/P-FG: 0.5KVAC |
| Insulation Resistance | I/P-O/P: 100M Ohms / 500VDC / 25C / 70% RH |
| EMC Emission | Conducted emission: BS EN/EN55032 (CISPR32), FCC Part 15 / CISPR22, CAN ICES-3(B)/NMB-3(B), CNS15936, GB17625.1, EAC TP TC 020, MSIP KN32 - Class B | Radiated emission: same standards, Class B | Harmonic current: BS EN/EN61000-3-2, GB9254 Class A | Voltage flicker: BS EN/EN61000-3-3 |
| EMC Immunity | BS EN/EN55035 | ESD BS EN/EN61000-4-2 Level 4 (15KV air) / Level 4 (8KV contact) | RF field BS EN/EN61000-4-3 Level 2, 3V/m | EFT bursts BS EN/EN61000-4-4 Level 2, 1KV | Surge BS EN/EN61000-4-5 Level 3, 1KV line-line / 2KV line-FG | Conducted susceptibility BS EN/EN61000-4-6 Level 2, 3V | Magnetic field BS EN/EN61000-4-8 Level 2, 3A/m | Voltage dips and interruption BS EN/EN61000-4-11 |
| Housing / Protections | 94V-0 flame-retardant fully enclosed plastic housing | Protections: short circuit / overload / over voltage / over temperature |
| Warranty | 3 years |
GST90A is certified to UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, IEC62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1, AS/NZS 62368.1, BIS IS13252, KC K60950-1 and EAC TP TC 004. Conducted and radiated emissions meet Class B limits to BS EN/EN55032 (CISPR32), FCC Part 15 / CISPR22, CAN ICES-3(B)/NMB-3(B), CNS15936, GB17625.1, EAC TP TC 020 and MSIP KN32. ESD immunity is Level 4 at 15KV air and Level 4 at 8KV contact.
Yes. GST90A is the only series in the GST desktop family with active PFC. Power factor is above 0.91 at 230VAC and above 0.95 at 115VAC at full load. This is the main reason the series exists at 90W: at this power level many buyers and grid codes expect power factor correction, and the smaller GST adapters do not have it.
GST90A is a Class I power supply. It connects through a 3-pole IEC320-C14 inlet and bonds the protective earth to the chassis, which is why more than two conductors are present on the mains side. It uses a 94V-0 flame-retardant fully enclosed plastic housing.
No. The 12V model is rated 80W maximum (6.67A). The 15V, 19V, 24V and 48V models are rated 90W maximum. All five share the same 145 x 60 x 32mm housing and the same 90~264VAC / 127~370VDC input range. This series starts at 12V: there is no 5V, 7.5V, 9V, 18V or 28V model, so if you need a low voltage below 12V choose GST40A or GST60A instead.
The standard plug is P1M, a 5.5 x 2.5 x 11mm tuning fork type with center positive polarity. MEAN WELL can fit other plug styles such as barrel, lock, min. pin, center pin and DIN connectors at the factory subject to a minimum order quantity. For small quantities, a quick-change DC plug adapter is available for the P1 tuning-fork plug and the R7B 4-pin DIN plug, both rated 7.5A maximum.
P1M has a 2.5mm centre pin, while P1J has a 2.1mm pin. At 90W the output current reaches 6.67A on the 12V model, so the larger contact area of the 2.5mm pin is used to keep contact resistance and heating down. If your existing cable set is built around a 2.1mm P1J jack, tell us at the order stage and we will confirm whether a suitable plug version exists.
In the standard P1M version the negative output (-V) is not connected to AC FG, even though the mains input is Class I and the chassis is earthed. If your end device expects the output referenced to earth, tell us the grounding scheme when ordering so we can confirm the correct build.
Overload protection trips at 110%~150% of rated output power and runs in hiccup mode, recovering automatically once the fault is removed. Over-voltage protection trips at 105%~135% of rated output voltage and shuts the output down until the unit is restarted. Over-temperature protection also shuts the output down and requires a restart after the unit has cooled. Short circuit protection recovers automatically.
No. GST90A is an ITE product certified to the 62368-1 safety standard with a maximum leakage current of 1mA at 240VAC. For equipment with patient contact, use a 60601-1 certified adapter from the MEAN WELL GSM medical series instead, which provides 2xMOPP isolation and touch current below 50uA. The adapter is in any case a component intended to be built into end equipment, so EMC and safety of the complete system must be confirmed with the finished device.
Explore every output voltage in the GST90A family.
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