As a service to our customers, we offer fast prototyping, design assistance, rush delivery, assembly / build services, and stocking options. Our Quality System is an ISO 9001:2008 system registered by Certech Registration Inc.
We are located in Kitchener Ontario as part of the Golden Technology Triangle (Kitchener-Waterloo-Cambridge). The Company was founded by Stanley G. Smallwood in 1945, originally manufacturing radio and television coils.

S.G. Smallwood Inc. specializes in the design, manufacture and distribution of transformer and inductor components to exactly suit your circuit and product applications.
We offer a full complement of manufacturing capabilities: computer assisted design, toroidal winding, bobbin and layer winding, vacuum epoxy encapsulation, varnish impregnation, fabrication of specialized custom parts and comprehensive computerized product testing. Our Products are available in Custom, Standard and Equivalent designs. Available configurations include toroidal, ferrite, C-Core, and laminated EI UI core styles for 50/60Hz, 500Hz and higher frequency applications to 1 MHz.

Supplier of custom transformers and inductors under the Controlled Goods Program, registration number 24504, an industrial security program authorized by the Defence Production Act.

Custom Transformers, Inductors, Chokes & Coils

Our Products:

Additional Requirements can be specified for:

Insulation Systems:

105°C, 130°C, 155°C, 180°C, etc.

Safety Standards:

UL, CSA, IEC, CE, etc.

Encapsulation:

vacuum epoxy encapsulation

Mountings:

available in chassis mount, through hole mount, surface mount and custom

Terminations:

available as terminals, leads, and special

Materials:

selected for your desired performance / price / quality level

CUSTOM TRANSFORMERS from S.G. Smallwood Inc.

Manufacturing of Custom Transformers
S.G. Smallwood Inc. designs and manufactures custom transformers for industrial, commercial, military and aerospace markets. We offer a full complement of manufacturing capabilities that include computer assisted design, toroidal winding, bobbin winding, layer winding, vacuum epoxy encapsulation, varnish impregnation, comprehensive computerized product testing and fabrication of specialized custom parts. Read More »

Design of Custom Transformers
S.G. Smallwood Inc. will work with you to assist in the development and design of your custom transformers to provide components that are tailor made for your circuit and product applications. Custom transformers may be designed to meet requirements for applicable safety standards and other standards (such as UL, CSA, VDE, IEC, MIL spec, etc.), RoHS compliance, electrical isolation, insulation system, output voltage or output current levels and tolerances, mounting, terminations, vacuum epoxy / varnish, etc. Our design and materials sourcing expertise will assist you in optimizing your cost - performance - delivery requirements in the best possible way. Custom transformers are available in a variety of configurations that include but are not limited to toroidal, ferrite, C-Core, and laminated EI UI core styles for 50/60Hz, 400Hz and higher frequency applications to 1 MHz.

Product Range of Custom Transformers
S.G. Smallwood Inc.'s custom transformers product range includes but is not limited to power transformers, isolation transformers, toroidal transformers, control transformers, current transformers, potential transformers, audio transformers, communication transformers, high frequency transformers, rectifier transformers, RF transformers, auto transformers, coupling transformers, 3-phase transformers, encapsulated transformers, pulse transformers, high voltage transformers and vacuum epoxy potted transformers. Configurations include but are not limited to toroidal, ferrite, C-Core, and laminated EI UI core styles for 50/60Hz, 400Hz and higher frequency applications to 1 MHz. Sizes up to 1.5KVA for 50/60 Hz power transformers.

Custom Transformers Services
Our customer service representative will be happy to assist you with finding answers to your questions regarding custom transformers. We provide knowledgeable engineering support, fast prototyping, assembly / build-to-print and optional product stocking. Customer satisfaction and service excellence is our promise to you. Let us get your quotes & prototypes off to a fast start. Operating under our ISO 9001:2008 Quality Program.

Ordering Custom Transformers
Contact us at tel 1-800-268-7125 or 1-519-894-2280, fax 1-519-894-0007 or email info@sgsmallwood.com to place your order for custom transformers.

CUSTOM COILS from S.G. Smallwood Inc.

Manufacturing of Custom Coils
S.G. Smallwood Inc. designs and manufactures custom coils for industrial, commercial, military and aerospace markets. We offer a full complement of manufacturing capabilities that include computer assisted design, toroidal winding, bobbin winding, layer winding, vacuum epoxy encapsulation, varnish impregnation, comprehensive computerized product testing and fabrication of specialized custom parts.

Design of Custom Coils
S.G. Smallwood Inc. will work with you to assist in the development and design of your custom coils to provide components that are tailor made for your circuit and product applications. Custom coils may be designed to meet requirements for applicable safety standards and other standards, RoHS compliance, electrical isolation, insulation system, inductance, Q, mounting, terminations, vacuum epoxy / varnish, etc. Our design and materials sourcing expertise will assist you in optimizing your cost - performance - delivery requirements in the best possible way. Custom coils are available in a variety of configurations that include but are not limited to self supporting air coil, toroidal, ferrite, C-Core, and laminated EI UI core styles for applications up to 1 MHz and higher.

Product Range of Custom Coils
S.G. Smallwood Inc.'s custom coils product range includes but is not limited to antenna coils, electromagnet coils, solenoid coils, sensing coils, toroidal coils, choke coils, RF coils, encapsulated coils, electric coils, electronic coils and vacuum epoxy potted coils.

Custom Coils Services
Our customer service representative will be happy to assist you with finding answers to your questions regarding custom coils. We provide knowledgeable engineering support, fast prototyping, assembly / build-to-print and optional product stocking. Customer satisfaction and service excellence is our promise to you. Let us get your quotes & prototypes off to a fast start. Operating under our ISO 9001:2008 Quality Program.

Ordering Custom Coils
Contact us at tel 1-800-268-7125 or 1-519-894-2280, fax 1-519-894-0007 or email info@sgsmallwood.com to place your order for custom coils.

CUSTOM CHOKES from S.G. Smallwood Inc.

Manufacturing of Custom Chokes
S.G. Smallwood Inc. designs and manufactures custom chokes for industrial, commercial, military and aerospace markets. We offer a full complement of manufacturing capabilities that include computer assisted design, toroidal winding, bobbin winding, layer winding, vacuum epoxy encapsulation, varnish impregnation, comprehensive computerized product testing and fabrication of specialized custom parts.

Design of Custom Chokes
S.G. Smallwood Inc. will work with you to assist in the development and design of your custom chokes to provide components that are tailor made for your circuit and product applications. Custom chokes may be designed to meet requirements for applicable safety standards and other standards, RoHS compliance, inductance, Q, mounting, terminations, vacuum epoxy / varnish, etc. Our custom chokes design and materials sourcing expertise will assist you in optimizing your custom chokes cost - performance - delivery requirements in the best possible way. Custom chokes are available in a variety of configurations that include but are not limited to self supporting air coil, toroidal, ferrite, C-Core, and laminated EI UI core styles for applications up to 1 MHz and higher.

Product Range of Custom Chokes
S.G. Smallwood Inc.'s custom chokes product range includes but is not limited to filter chokes, RF chokes, toroidal chokes, high current chokes, ferrite core chokes, power line chokes, foil wound chokes, EMI/RFI suppression chokes, common mode chokes, air core chokes, 3-phase chokes and vacuum epoxy potted chokes.

Custom Chokes Services
Our customer service representative will be happy to assist you with finding answers to your questions regarding custom chokes. We provide knowledgeable engineering support, fast prototyping, assembly / build-to-print and optional product stocking. Customer satisfaction and service excellence is our promise to you. Let us get your custom chokes quotes & prototypes off to a fast start. Operating under our ISO 9001:2008 Quality Program.

Ordering Custom Chokes
Contact us at tel 1-800-268-7125 or 1-519-894-2280, fax 1-519-894-0007 or email info@sgsmallwood.com to place your order for custom chokes.

CUSTOM INDUCTORS from S.G. Smallwood Inc.

Manufacturing of Custom Inductors
S.G. Smallwood Inc. designs and manufactures custom inductors for industrial, commercial, military and aerospace markets. We offer a full complement of manufacturing capabilities that include computer assisted design, toroidal winding, bobbin winding, layer winding, vacuum epoxy encapsulation, varnish impregnation, comprehensive computerized product testing and fabrication of specialized custom parts.

Design of Custom Inductors
S.G. Smallwood Inc. will work with you to assist in the development and design of your custom inductors to provide components that are tailor made for your circuit and product applications. Custom inductors may be designed to meet requirements for applicable safety and other standards, RoHS compliance, inductance, Q, mounting, terminations, vacuum epoxy / varnish, etc. Our custom inductors design and materials sourcing expertise will assist you in optimizing your custom inductors cost - performance - delivery requirements in the best possible way. Custom inductors are available in a variety of configurations that include but are not limited to self supporting air coil, toroidal, ferrite, C-Core, and laminated EI UI core styles for applications up to 1 MHz and higher.

Product Range of Custom Inductors
S.G. Smallwood Inc.'s custom inductors product range includes but is not limited to filter inductors, RF inductors, toroidal inductors, high current inductors, high frequency inductors, ferrite core inductors, power inductors, switchmode inductors, tunable inductors, output filter inductors, encapsulated inductors, foil wound inductors, EMI/RFI suppression inductors, common mode inductors, air core inductors, 3-phase inductors and vacuum epoxy potted inductors.

Custom Inductors Services
Our customer service representative will be happy to assist you with finding answers to your questions regarding custom inductors. We provide knowledgeable engineering support, fast prototyping, assembly / build-to-print and optional product stocking. Customer satisfaction and service excellence is our promise to you. Let us get your custom inductors quotes & prototypes off to a fast start. Operating under our ISO 9001:2008 Quality Program.

Ordering Custom Inductors
Contact us at tel 1-800-268-7125 or 1-519-894-2280, fax 1-519-894-0007 or email info@sgsmallwood.com to place your order for custom inductors.