Product Description for BEL/SIGNAL TRANSFORMER ST-3-12
Introducing the BEL/SIGNAL TRANSFORMER Part Number ST-3-12, a high-quality power transformer designed for reliable electronic applications. Manufactured in the Dominican Republic (COO: DO), this laminated power transformer offers excellent performance and compliance with industry standards.
Key Features:
Power Rating: 2.4 VA (Volt-Ampere)
Type: Laminated Power/Mains Transformer
Construction: Split Bobbin with High Isolation for superior electrical separation
RoHS Compliant: Yes
Package: Box
UOM: Each (EA)
ECCN: EAR99
This transformer is suitable for applications requiring high isolation and low capacitive coupling, utilizing a dual cavity platform for enhanced performance. It features rigid pin construction for easier board insertion and increased reliability.
Specifications:
Electrical Characteristics
Details
Power Rating
2.4 VA
Dielectric Strength
2500 Vrms Hipot
Primaries
Single or dual primaries, 115 V or 115/230 V, 50/60 Hz
Secondaries
Series or parallel
Insulation System
Class F, 155°C
Agency Certifications
UL 1446 Class F insulation systems, File # E66312
UL Recognized 506 / UL 5085-1, 2, File # E63829
CSA certified to C22.2 #66.1, File # 221070
cCSAus certified to C22.2 #66.3 / UL 5085-3, File #221070
UL Recognized UL5085-3, Inherently Limited File # E116583
For detailed technical specifications and datasheet, please visit the Datasheet.
Additional information, including mounting options and custom configurations, are available upon request. This product is compliant with RoHS standards and is suitable for various power supply applications.
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{"id":10027799806269,"title":"ST-3-12","handle":"st-3-12","description":"\u003ch3\u003eProduct Description for BEL\/SIGNAL TRANSFORMER ST-3-12\u003c\/h3\u003e\n\u003cp\u003eIntroducing the BEL\/SIGNAL TRANSFORMER Part Number \u003cstrong\u003eST-3-12\u003c\/strong\u003e, a high-quality power transformer designed for reliable electronic applications. Manufactured in the Dominican Republic (COO: DO), this laminated power transformer offers excellent performance and compliance with industry standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003ePower Rating: 2.4 VA (Volt-Ampere)\u003c\/li\u003e\n \u003cli\u003eType: Laminated Power\/Mains Transformer\u003c\/li\u003e\n \u003cli\u003eConstruction: Split Bobbin with High Isolation for superior electrical separation\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003ePackage: Box\u003c\/li\u003e\n \u003cli\u003eUOM: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis transformer is suitable for applications requiring high isolation and low capacitive coupling, utilizing a dual cavity platform for enhanced performance. It features rigid pin construction for easier board insertion and increased reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eElectrical Characteristics\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePower Rating\u003c\/td\u003e\n \u003ctd\u003e2.4 VA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003e2500 Vrms Hipot\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePrimaries\u003c\/td\u003e\n \u003ctd\u003eSingle or dual primaries, 115 V or 115\/230 V, 50\/60 Hz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSecondaries\u003c\/td\u003e\n \u003ctd\u003eSeries or parallel\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation System\u003c\/td\u003e\n \u003ctd\u003eClass F, 155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eAgency Certifications\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eUL 1446 Class F insulation systems, File # E66312\u003c\/li\u003e\n \u003cli\u003eUL Recognized 506 \/ UL 5085-1, 2, File # E63829\u003c\/li\u003e\n \u003cli\u003eCSA certified to C22.2 #66.1, File # 221070\u003c\/li\u003e\n \u003cli\u003ecCSAus certified to C22.2 #66.3 \/ UL 5085-3, File #221070\u003c\/li\u003e\n \u003cli\u003eUL Recognized UL5085-3, Inherently Limited File # E116583\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical specifications and datasheet, please visit the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/BELF\/BELF-S-A0010700711\/BELF-S-A0010700711-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAdditional information, including mounting options and custom configurations, are available upon request. This product is compliant with RoHS standards and is suitable for various power supply applications.\u003c\/p\u003e\n\u003cp\u003eFor more details, visit the \u003ca href=\"https:\/\/belfuse.com\/signal\" target=\"_blank\"\u003emanufacturer's website\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed. Please search the internet for the part number ST-3-12 for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T03:06:53+05:30","created_at":"2025-08-16T03:06:54+05:30","vendor":"Waldom Electonics","type":"Transformers","tags":["4VA","BEL-SIGN","IMPORT_CSV","IMPORT_PT2","Mains","Power","PWR","Transformers","WLDM"],"price":88005,"price_min":88005,"price_max":88005,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50626096988477,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ST-3-12","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"ST-3-12","public_title":null,"options":["Default Title"],"price":88005,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"ST-3-12","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/54567424.png?v=1755293816"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54567424.png?v=1755293816","options":["Title"],"media":[{"alt":null,"id":45860770775357,"position":1,"preview_image":{"aspect_ratio":1.0,"height":300,"width":300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54567424.png?v=1755293816"},"aspect_ratio":1.0,"height":300,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54567424.png?v=1755293816","width":300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description for BEL\/SIGNAL TRANSFORMER ST-3-12\u003c\/h3\u003e\n\u003cp\u003eIntroducing the BEL\/SIGNAL TRANSFORMER Part Number \u003cstrong\u003eST-3-12\u003c\/strong\u003e, a high-quality power transformer designed for reliable electronic applications. Manufactured in the Dominican Republic (COO: DO), this laminated power transformer offers excellent performance and compliance with industry standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003ePower Rating: 2.4 VA (Volt-Ampere)\u003c\/li\u003e\n \u003cli\u003eType: Laminated Power\/Mains Transformer\u003c\/li\u003e\n \u003cli\u003eConstruction: Split Bobbin with High Isolation for superior electrical separation\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003ePackage: Box\u003c\/li\u003e\n \u003cli\u003eUOM: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis transformer is suitable for applications requiring high isolation and low capacitive coupling, utilizing a dual cavity platform for enhanced performance. It features rigid pin construction for easier board insertion and increased reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eElectrical Characteristics\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePower Rating\u003c\/td\u003e\n \u003ctd\u003e2.4 VA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003e2500 Vrms Hipot\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePrimaries\u003c\/td\u003e\n \u003ctd\u003eSingle or dual primaries, 115 V or 115\/230 V, 50\/60 Hz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSecondaries\u003c\/td\u003e\n \u003ctd\u003eSeries or parallel\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation System\u003c\/td\u003e\n \u003ctd\u003eClass F, 155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eAgency Certifications\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eUL 1446 Class F insulation systems, File # E66312\u003c\/li\u003e\n \u003cli\u003eUL Recognized 506 \/ UL 5085-1, 2, File # E63829\u003c\/li\u003e\n \u003cli\u003eCSA certified to C22.2 #66.1, File # 221070\u003c\/li\u003e\n \u003cli\u003ecCSAus certified to C22.2 #66.3 \/ UL 5085-3, File #221070\u003c\/li\u003e\n \u003cli\u003eUL Recognized UL5085-3, Inherently Limited File # E116583\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical specifications and datasheet, please visit the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/BELF\/BELF-S-A0010700711\/BELF-S-A0010700711-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAdditional information, including mounting options and custom configurations, are available upon request. This product is compliant with RoHS standards and is suitable for various power supply applications.\u003c\/p\u003e\n\u003cp\u003eFor more details, visit the \u003ca href=\"https:\/\/belfuse.com\/signal\" target=\"_blank\"\u003emanufacturer's website\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed. Please search the internet for the part number ST-3-12 for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}
