led power supply pwm triac dimmable 450ma
This SMT-28-0450CTH 450ma 12w offered range of constant current LED Drivers Capacitor can be availed by your project in different specifications to meet the exact requirements.
Features
Output: constant current
Input range :180-265VAC
Built-in PFC function
Efficiency > 84% / PF>0.9
Protections:Short circuit/over Voltage
Fully isolated plastic case
Easy installation
Cooling by free air convection
Work with leading edge and trailing edge TRIAC dimmers
Strong compatibility, flicker-free dimming
Suitable for LED lighting and moving sign applications
Compliance to worldwide safety regulations for lighting
3 years warranty
Specification
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Model |
SMT-030-0400CTH |
SMT-028-0450CTH |
SMT-040-0300CTH |
SMT-025-0700CT |
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Output |
DC Current |
400mA |
450mA |
300mA |
700mA |
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Current Accuracy |
±5% |
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Voltage Range |
18~30V |
16~28V |
28~40V |
10~25V |
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Rated power |
12W |
12W |
12W |
17.5W |
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Input |
Voltage Range |
180～265VAC |
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Frequency Range |
47～63HZ |
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Power Factor （Typ.） |
PF≧0.92/110V ; PF≧0.95/220V ; PF≧0.93/250V |
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Full Load Efficiency（Typ.） |
85% |
86% |
85% |
85% |
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AC Current（Typ.） |
0.14A/110VAC 0.12 A/220VAC 0.01A/250VAC |
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Leakage current |
<0.27mA/110VAC; ﹤0.25mA/220VAC |
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Protection |
Short Circuit |
Hiccup mode, recovers automatically after fault condition is removed. |
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Over voltage |
≦270VAC |
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Environment |
Working TEMP. |
-40～+60℃ |
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Working Humidity |
20～90%RH,non-condensing |
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Storage TEM.,Humidity |
-40～+80℃，10～95%RH |
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TEMP.coefficient |
±0.03%/℃（0～50℃） |
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Vibration |
10～500Hz，2G 10min./1 cycle，period for 60min.each along X,Y,Z axes |
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Safety&EMC |
Safety standards |
EN-60950-1, EN-61347-1-2 |
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Withstand voltage |
I/P-O/P:3.75KVAC |
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Isolation resistance |
I/P-O/P：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance toEN55015,EN61000-3-2 (≧50%load) |
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EMC IMMUNITY |
Compliance to EN55015,EN61000-4-2,3,4,5,6,8,11,A light industry level （surge4KV） |
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Others |
Weight |
0.16Kg/pcs |
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Size |
85*45*26mm （L*W*H） |
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packing |
324*298*176mm |
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Notes |
1. All parameters NOT specially mentioned are measured at 110V/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 us tolerance,line regulation and load regulation . |
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Product size
Connection diagram
Our Services
- 1.All inquiries will be replied within 24 hours
- 2.Professional manufacturer,welcom to visit our website
- 3.OEM/ODM avaliable:
- A.Print logo on our product;
- B. Customized specification;
- 4.After Sales-Service:
- A. All products will have 100% burn-in test and strictly quality test before shipping;
- B. Fast Delivery: 3-7days for samples, 15-20 days for bulk production;
- 5.High efficiency,long life span,reasonable&competetative price,fast lead time;
- 6.We have our engineer team, if you have any question about your LED applications, let us know freely.
Dimming Operation
※Output constant current level can be adjusted through input terminal of the AC phase line(L) by connection a triac dimmer.
※Compatible with Leading edge or tailing edge triac dimmers.
※please try to use the small power dimmer, have access to a wider dimming range, high-power dimmer is difficult to achieve the output current to zero
