3 Output 15 → 30W Flyback SMPS Transformer, 85 → 265V ac, 3.3 → 7 V ac, 8 → 17 V ac

  • RS Stock No. 418-5543
  • Mfr. Part No. 74030
  • Manufacturer Myrra
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): FR
Product Details

Switch mode power supply transformers format E25 & ETD, 15 W switch mode

From Myrra the E25 and ETD Series flyback transformers form the core of a switch mode power supply in association with a specialised circuit (VIPer, TOPSwitch, CoolSet, or control circuit + Mosfet.) Constructed with reinforced insulation, the E25 and ETD Series of flyback transformers exclusively use UL94-V0 listed materials.

Features and Benefits:
• Primary / Secondary Insulation ≥ 4000V
• Primary / Auxiliary Insulation ≥ 1500V
• Creepage distance Primary / Secondary ≥ 8mm
• Secondaries can be connected in series or in parallel.
• Materials comply with UL94-V0

ref. Myrra Format Dimensions (mm)     Inductance
Associated integrated circuits
    L W H    
74030 EE25 27 27 21 750 μH TOP223, 224, VIPer50, TDA16832
74040 ETD29 37 37 27 500 μH TOP225, VIPer50, TDA16834
74040 ETD34 40 43 34 500 μH TOP226, VIPer100, TDA16836
74060 ETD39 46 49 38 440 μH TOP227, VIPer100, TDA16836
74070 ETD44 51 52 40.5 300 μH TDA16837, KA2S0965

Standards

IEC 950, IEC 61558 for reinforced insulation

Open Frame - Laminated

PCB mounting mains transformers with a single 230Va.c. or twin 115Va.c. 50/60Hz primary winding. Independent secondary windings may be connected in series or parallel to give a wide range of output voltage and current options.

Double section metric bobbin construction
Full varnish impregnation

Technical specifications
VA regulation dimensions (mm)     pins (mm)   weight
nominal typ. (%) L L h* L Ø (kg)
3 20 38 35 30 5 1 0.14
6 25 43 36 33 5 1 0.18
12 12 54 45 41 5 1 0.4
* above the PCB
Specifications
Attribute Value
Secondary Voltage Rating 3.3 → 7 V ac, 8 → 17 V ac
Primary Voltage Rating 85 → 265V ac
Power Rating 15 → 30W
Number of Outputs 3
Mounting Type Through Hole
Application Flyback
Secondary Current 1.5 A, 3 A
Termination Type Pin
Length 26.5mm
Width 22.5mm
Depth 26.5mm
Dimensions 26.5 x 22.5 x 26.5 mmmm
Number of Phases 1
Maximum Operating Frequency 100kHz
Construction CEI335, CEI61558, CEI950
74 In stock for delivery within 5 working day(s)
Price (ex. GST) Each
$ 7.35
(exc. GST)
$ 8.09
(inc. GST)
units
Per unit
1 - 24
$7.35
25 - 49
$7.07
50 - 99
$6.81
100 - 249
$6.58
250 +
$6.43
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