Specifications
Description :
SMD-8P,13.2x9.3mm Switching Converter, SMPS Transformers RoHS
Mfr. Part # :
B78307A9741A003
Model Number :
B78307A9741A003
Package :
SMD-8P,13.2x9.3mm
Description

SMD Transformers - E10 EM Series

Product Overview
The TDK Electronics E10 EM series comprises high-performance SMD transformers designed for a variety of demanding applications. These transformers feature a robust construction with a ferrite core, SMD gullwing pins, and triple-insulated wire, ensuring reliability and safety. They are qualified to AEC-Q200 and designed in compliance with key IEC standards, offering a wide operating temperature range up to +150 C. Ideal for isolated DC/DC converters, gate driver circuits, and digital isolator ICs, the E10 EM series provides excellent electrical insulation and operational stability.

Product Attributes

  • Brand: TDK Electronics
  • Series: E10 EM series
  • Construction: Ferrite core (MnZn), SMD gullwing pins, Triple insulated wire, Non-conductive pick-and-place cap
  • Insulation System: UL1446 class 155(F)
  • Certifications: AEC-Q200 Qualified, RoHS compatible
  • Delivery Mode: Blister tape (380 mm diameter), 280 pcs per reel
  • Plastic Materials: UL94-V0, CTI 175
  • Insulated Wire: UL60950-1, Annex U

Technical Specifications

Specification Value
Height 11.35 mm max
Operating Temperature Range -40 C +150 C (component)
Weight Approx. 2 g
Typical Operational Frequency 100 ... 500 kHz (typ.)
High Voltage Test (AC N1 / N2) 3000 V AC (50 Hz, 1 s)
High Voltage Type Test (AC, N1 / N2) 3750 V AC (50 Hz, 60 s)
Partial Discharge Inception Voltage (N1/N2) >900 V peak (type test)
Partial Discharge Extinction Voltage (N1/N2) >700 V peak (type test)
Creepage Distance N1 / N2 >6 mm; cumulative, core floating
Clearance Distance N1 / N2 >5.5 mm; cumulative, core floating
Creepage Distance [N1,N2] / core >3 mm
Clearance Distance [N1,N2] / core >2.75 mm
Clearance, Creepage core / top surface >2 mm
Pollution Degree P2 (to IEC 60664)
Insulation Thermal Class +155 C (F) (to IEC 60085)
Climatic Category 40/150/56 (to IEC 60068)
Storage Conditions 25 C +40 C, humidity 75% RH
Resistance to Reflow Soldering Heat In accordance with JEDEC J-STD-020D, Tpeak= +245 C (Tpeak 5 C for 30 seconds)
Overvoltage Category OVC II
CTI 175
Altitude 2 km / 5 km (depending on OVC/Pollution Degree)

Characteristics and Ordering Codes

Topology Turns Ratio N1/N2 LN1 (H) Lleak,typ, N1 (H) Isat,N1 (A) E*dtN1 (max, unipolar/ bipolar) (Vs) RDC,N1 (m) RDC,N2 (m) Cp N1/N2 (pF) Fig. Ordering Code
B1, B2 1 : 1.08 100 0.35 - 15 / 30 350 410 9 F1 B78307A2276A003
B1, B2 1 : 0.76 100 0.45 - 18 / 36 360 300 9 F1 B78307A9741A003
B1, B2 1 : 3.67 10 0.1 - 10 / 20 200 700 6 F2 B78307A2385A003
B3,B4 1 : 4 2 10% 0.06 4 -105 340 4 F3 B78307A2338A003
B3,B4 4 : 1 25 10% - 1 - - - 4 F4 B78307A2338A003

Note: 1) T150 C, B= 200 mT, B= 400 mT (bipolar mode). The maximum volt-sec rating limits the peak flux density to B= 200 mT when used in a unipolar drive application. For bipolar drive applications, a maximum volt-sec of two times is acceptable (B 400 mT). 3) B78307A2238A003 Configuration 1 : 4 use pins 8-5 for primary; Configuration 4 : 1 use pins 2-3 for primary. 4) T150 C, L drop 20% 5) T150 C, B= 200 mT, B= 400 mT (bipolar mode). The maximum volt-sec rating limits the peak flux density to B= 200 mT when used in a unipolar drive application. For bipolar drive applications, a maximum volt-sec of two times is acceptable (B 400 mT).

Applications

  • Isolated DC/DC converters (bridge and flyback topology)
  • Gate driver circuits (e.g., for 650 V IGBTs)
  • Digital isolator ICs

2411272151_TDK-B78307A9741A003_C17645656.pdf
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SMD Transformer E10 EM Series Featuring TDK B78307A9741A003 for Electrical Insulation and Stability

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Description :
SMD-8P,13.2x9.3mm Switching Converter, SMPS Transformers RoHS
Mfr. Part # :
B78307A9741A003
Model Number :
B78307A9741A003
Package :
SMD-8P,13.2x9.3mm
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SMD Transformer E10 EM Series Featuring TDK B78307A9741A003 for Electrical Insulation and Stability
SMD Transformer E10 EM Series Featuring TDK B78307A9741A003 for Electrical Insulation and Stability

Changsha Purple Horn E-Commerce Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer
Employee Number :
>300
Certification Level :
Verified Supplier
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