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93 x 54 x 36mm | 85~264VAC Input | 9 Output Models 5V ~ 48VDC | 20W~25W | 3-Pole IEC320-C14 AC Inlet | Class I with Protective Earth | LPS Passed | No-Load <0.075W | Efficiency Level VI | Leakage 0.75mA Max | -30~+70C | 3-Year Warranty
The MEAN WELL GST25A series is a high-reliability 25W 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 a universal 85~264VAC, and the series covers nine output voltages from 5V to 48VDC, serving consumer electronic devices, telecom equipment, office equipment and industrial equipment.
Because the input is 3-pole, the chassis is bonded to earth and the unit has passed the LPS (limited power source) test. Withstand voltage is 4242VDC input-to-output and 2121VDC input-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 0.75mA at 240VAC, so for patient-contact medical equipment choose a 60601-1 certified adapter from the GSM series instead.
Efficiency reaches 89% on the 48V model with no-load power consumption below 0.075W 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 P1J (5.5 x 2.1 x 11mm tuning fork, center positive). In the standard version the negative output is not connected to AC FG; an optional version connects -V to AC FG for installations that need it. Tuning fork, barrel, lock, min. pin, center pin and DIN style plugs can be fitted at the factory, and quick-change DC plug adapters are sold separately with no MOQ. Protections cover short circuit, overload (110%~150% of rated power, hiccup mode with auto-recovery) and over voltage (110%~140% of rated output voltage, diode clamp). The adapter operates from -30C to +70C and is backed by a 3-year warranty.
Output ratings for all nine GST25A 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.) |
|---|---|---|---|---|---|
| GST25A05-P1J | 5V | 4.0A | 0 ~ 4.0A | 20W | 81.5% |
| GST25A07-P1J | 7.5V | 2.93A | 0 ~ 2.93A | 22W | 84.5% |
| GST25A09-P1J | 9V | 2.55A | 0 ~ 2.55A | 23W | 85% |
| GST25A12-P1J | 12V | 2.08A | 0 ~ 2.08A | 25W | 86.5% |
| GST25A15-P1J | 15V | 1.66A | 0 ~ 1.66A | 25W | 87% |
| GST25A18-P1J | 18V | 1.38A | 0 ~ 1.38A | 25W | 87% |
| GST25A24-P1J | 24V | 1.04A | 0 ~ 1.04A | 25W | 88% |
| GST25A28-P1J | 28V | 0.89A | 0 ~ 0.89A | 25W | 88% |
| GST25A48-P1J | 48V | 0.52A | 0 ~ 0.52A | 25W | 89% |
| Model | Ripple & Noise (Max) | Voltage Tolerance | Line Regulation | Load Regulation |
|---|---|---|---|---|
| GST25A05-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST25A07-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST25A09-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST25A12-P1J | 80mVp-p | ±3.0% | ±1.0% | ±3.0% |
| GST25A15-P1J | 100mVp-p | ±3.0% | ±1.0% | ±3.0% |
| GST25A18-P1J | 100mVp-p | ±3.0% | ±1.0% | ±3.0% |
| GST25A24-P1J | 150mVp-p | ±2.0% | ±1.0% | ±2.0% |
| GST25A28-P1J | 150mVp-p | ±2.0% | ±1.0% | ±2.0% |
| GST25A48-P1J | 150mVp-p | ±2.0% | ±1.0% | ±2.0% |
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 110%~140% of rated output voltage with diode clamp. 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 | P1J | 5.5 x 2.1 x 11.0 | Available (7.5A max) |
| Tuning Fork | Straight | P1I / P1L / P1M | 5.5 x 2.1 x 9.5 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Available (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 | Available (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 | Available (5A max) |
| 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) | Available (7.5A max) |
| Min. DIN 3 Pin with Lock (male) | KYCON KPPX-3P equivalent | R6B | - | Available (7.5A max) |
| 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 | - | Available (7.5A max) |
| 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, and the standard P1J plug belongs to the tuning fork family. Custom plug versions require a minimum order quantity; wire colors on stripped-lead versions are for reference only. The standard P1J version leaves -V disconnected from AC FG; an optional version bonds -V to AC FG for installations that require it.
| AC Input Range | 85~264VAC | 47~63Hz |
| AC Inlet | 3-pole IEC320-C14 inlet | Class I construction with protective earth |
| AC Current (Typ.) | 0.6A / 115VAC | 0.35A / 230VAC |
| Inrush Current (Max.) | Cold start 35A / 115VAC | 65A / 230VAC |
| Leakage Current (Max.) | 0.75mA / 240VAC |
| Efficiency | 81.5%~89% 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 | <0.075W |
| Set Up / Rise Time | 1000ms, 30ms / 230VAC | 1500ms, 30ms / 115VAC at full load |
| Hold Up Time (Typ.) | 50ms / 230VAC | 15ms / 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 | 110%~140% of rated output voltage | Diode clamp |
| 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 (0~50C) |
| Vibration | 10~500Hz, 2G, 10min/cycle, 60min each along X, Y, Z axis |
| DC Output Cable | UL2468 16AWG 1000±50mm for 5~12V models | UL1185 18AWG 1800±50mm for 15~48V models |
| MTBF | 3879.7K hrs min. Telcordia SR-332 (Bellcore) | 674.6K hrs min. MIL-HDBK-217F (25C) |
| Dimensions / Packing | 93 x 54 x 36mm (L*W*H) | 209g; 60pcs / 13.5Kg / 1.02CUFT per carton |
| Enclosure Model / Indicator | Enclosure model GST25A | Power-on LED indicator on the housing |
| LPS Rating | Passed LPS (limited power source) test |
| 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: 4242VDC | I/P-FG: 2121VDC |
| Insulation Resistance | I/P-O/P and I/P-FG: 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 3 (8KV air) / Level 2 (4KV 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 |
| Warranty | 3 years |
GST25A is certified to 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. 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.
GST25A 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 has passed the LPS (limited power source) test and uses a 94V-0 flame-retardant fully enclosed plastic housing.
No. The 5V model is rated 20W maximum (4.0A), the 7.5V model 22W (2.93A) and the 9V model 23W (2.55A). The 12V, 15V, 18V, 24V, 28V and 48V models are rated 25W maximum. All nine share the same 93 x 54 x 36mm housing and the same 85~264VAC input range.
The standard plug is P1J, a 5.5 x 2.1 x 11mm tuning fork type with center positive polarity. MEAN WELL can fit other plug styles such as tuning fork, barrel, lock, min. pin, center pin and DIN connectors at the factory subject to a minimum order quantity. For small quantities, quick-change DC plug adapters are available separately and require no MOQ.
In the standard version the negative output (-V) is not connected to AC FG. An optional version bonds -V to AC FG for installations that need the output referenced to earth. Both are available from the factory - tell us which grounding scheme your end device uses when ordering.
No. GST25A is an ITE product certified to the 62368-1 safety standard with a maximum leakage current of 0.75mA 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 GST25A family.
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