Zhejiang ZUCH Technology Co., Ltd.
Ring or Spade Terminals · Ring Terminal Series
TOM43753K-1203 M4 Ring Terminal Overview
TOM43753K-1203 is a ring terminal listed in ZUCH’s Ring Terminal Series. The published record identifies a 18+18AWG crimping range, M4 bolt size and Copper Alloy material. Confirm the drawing and conductor preparation before approving a harness or equipment BOM.
Application review
Ring Terminal Applications and Suitability Review
ZUCH publishes solution areas for engineering review. They are not proof that TOM43753K-1203 is approved for a specific platform. Confirm current, wire, mating and validation requirements.
01
Home appliance systems
Review terminal, wire range, mounting and mating-set requirements.
02
Automotive wiring programs
Confirm the conductor preparation, installation conditions and validation plan for the proposed automotive harness.
03
Energy and equipment wiring
Check conductor size, bolt interface, surface treatment and environmental limits against the project.
Supplier context
ZUCH Engineering and Manufacturing for Ring Terminal Projects
Company-level engineering, laboratory and manufacturing information can help buyers assess supplier capability. These supplier-reported statements do not replace product-specific qualification.
ZUCH states that it was founded in 1994 and operates as a group with 10 subsidiaries and three major production bases.
ZUCH reports more than 100 R&D staff, more than 150 authorized patents, a CNAS laboratory and a UL witness laboratory. Confirm scope and current validity.
ZUCH describes CCD online inspection and WMS/WCS logistics working with SAP, MES and SCADA systems.
Frequently asked questions
Ring Terminal Selection and Assembly FAQ
When should I use the TOM43753K-1203 ring terminal?
TOM43753K-1203 is a ring terminal in ZUCH’s Ring Terminal Series. A ring terminal has a closed eye for a stud connection. Confirm the fastener, installation access and retention requirements for your assembly.
How do I select the wire and stud size for TOM43753K-1203?
The catalog lists a 18+18AWG conductor range, a M4 bolt size. These are separate dimensions: match both the conductor and stud to the current drawing. Confirm the assembly requirements with ZUCH.
Can I replace a ring terminal with a spade terminal?
A closed ring and an open fork have different retention geometry. Matching the wire range or bolt size alone does not establish interchangeability. Confirm the approved terminal shape, fastener and retention requirements before substituting TOM43753K-1203.
Which crimping tool should I use for TOM43753K-1203?
Select tooling for the listed 18+18AWG wire range and the exact terminal geometry. Ask ZUCH for the approved die, wire-preparation and crimp specification. A general-purpose crimper is not automatically suitable. Confirm the assembly requirements with ZUCH.
How much current can TOM43753K-1203 carry?
The public catalog does not publish a rated current for this exact model. Do not derive an ampere rating from terminal color, wire range or a similar part; request the application limit from ZUCH. Confirm the assembly requirements with ZUCH.
What material and finish are specified for TOM43753K-1203?
The specified material is Copper Alloy. The surface treatment is listed as Matte Tin-plated. Match the finish to the approved mating contact and environment; request the material declaration or drawing if the project requires a specific alloy or coating thickness. Confirm the assembly requirements with ZUCH.
Can TOM43753K-1203 be used in heat, moisture or vibration?
The catalog records a usage environment of -40°~105°. Confirm the unit and test conditions on the current drawing. The terminal entry does not establish a sealed assembly or a vibration-test result. Confirm the enclosure, insulation and environmental validation required for your application.
How do I check the finished connection made with TOM43753K-1203?
Check conductor placement, terminal retention and the connection against the approved application drawing. Ask ZUCH to specify the applicable mechanical and electrical acceptance limits; a visual check alone does not establish the complete assembly rating. Confirm the assembly requirements with ZUCH.
Need help with your project?
Share the model, drawings and application requirements with the ZUCH team.
Project enquiry
Request a Quote for TOM43753K-1203 Ring Terminal
Send the exact model and project inputs so ZUCH can confirm unpublished specifications, document revisions and purchasing terms.
- Exact model and expected quantity
- Wire range, bolt interface and application
- Surface treatment and environment requirements
- Destination market and required documents
