JST, R Insulated Ring Terminal, 4mm Stud Size, 0.25mm² to 1.65mm² Wire Size, Red
- RS Stock No.:
- 1903501
- Mfr. Prt No.:
- FN1.25-M4
- Brand:
- JST
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 1903501 |
| Product description | JST, R Insulated Ring Terminal, 4mm Stud Size, 0.25mm² to 1.65mm² Wire Size, Red |
| Manufacturer / Brand | JST |
| Manufacturer part number | FN1.25-M4 |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 1903501 |
| Product description | JST, R Insulated Ring Terminal, 4mm Stud Size, 0.25mm² to 1.65mm² Wire Size, Red |
| Manufacturer / Brand | JST |
| Manufacturer part number | FN1.25-M4 |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Dec 25, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
JST Insulated Crimp Terminals
JST Insulated Crimp Ring Terminals
The JST R-Type Ring Terminal is made of oxygen free cooper and features excellent electrical characteristics. The Nylon insulation ensures high flame resistance and insulation properties.
Features & Benefits
• Flared entry
• Oxygen free cooper with excellent electrical characteristics
• High-strength brazing
• Insulation
• High temperature resistance (up to 105oC)
A range of insulated crimp ring terminals for use with a variety of wire and stud sizes.
Insulated crimp ring terminals with part numbers prefixed 'FVWS' have flared vinyl insulation and a butted seam
Insulated crimp ring terminals with part numbers prefixed 'FVDWS' have vinyl insulation, copper sleeve and butted seam
Insulated crimp ring terminals with part numbers prefixed 'N' have straight nylon insulation
Insulated crimp ring terminals with part numbers prefixed 'FN' have flared nylon insulation
Specifications
| Attribute | Value |
| Brand | JST |
| Series | R |
| Insulation | Insulated |
| Insulation Material | Nylon |
| Inner Ring Diameter | 4.3 mm |
| Outer Ring Diameter | 6.6 mm |
| Minimum Wire Size mm² | 0.25 mm² |
| Maximum Wire Size mm² | 1.65 mm² |
| Minimum Wire Size AWG | 22 AWG |
| Maximum Wire Size AWG | 16 AWG |
| Stud Size | 4 mm |
| Colour | Red |
| Thickness | 0.8 mm |
| Overall Length | 18.6 mm |
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