180900/70411-6.3-21 4 Pin Female Assembly Wiring Harness Automotive Connector Car Electrical Wire Socket

(1) Overview

The 180900 is a receptacle terminal housing belonging to the FASTIN‑FASTON series, designed for wire‑to‑wire applications. This housing accommodates .250‑series (6.35 mm) contacts. According to the application specification, the product line includes housings with 1, 2, 3, 4, 6, 8, 10, and 11 circuit positions. The 180900 specifically provides 4 positions. Each housing features circuit identification markings on the mating face and polarization features for positive mating. For the .187 and .250 series, receptacle housings are optionally available with mounting flanges for panel mounting, though the 180900 is described as cable mount (free‑hanging). The housing material is natural (clear/off‑white) nylon.

(2) Key Features and Requirements 

Temperature Rating: The housing is rated for continuous use up to 125 °C [256 °F], permitting operation in relatively high‑temperature environments such as automotive engine compartments or industrial machinery.

Storage and Handling:

Prolonged exposure to ultraviolet (UV) light may deteriorate the housing material.
Reeled contacts should be stored with coil‑wound reels horizontal and traverse‑wound reels vertical.
Contacts should remain in their shipping containers until use to prevent deformation. A first‑in, first‑out inventory practice is recommended to avoid contamination that could affect signal transmission.
For housings produced with natural nylon, discoloration (green, yellow, or dark white) may occur over time. This does not affect form, fit, or function, as guaranteed by the resin supplier and validated by TE.
Do not store contacts near chemicals such as alkalies, ammonia, citrates, phosphates, sulfur compounds, amines, carbonates, nitrites, or tartrates, as these may cause stress corrosion cracking. Where such conditions exist, phosphor‑bronze contacts are recommended instead of brass.

Wire Selection and Preparation:

The contacts accept stranded wire sizes from 26 AWG down to 8 AWG. The acceptable insulation diameter for each contact is given in the associated applicator sheet. Proper strip length is necessary for correct wire insertion into the contact. The conductor must not be nicked, scraped, or cut during stripping.

Crimp Requirements (Critical for reliable termination):

Wire barrel crimp: The crimp height and width must be within the dimensions specified in the applicator sheet. This area is the most compressed and critical for electrical and mechanical performance.
Insulation barrel crimp: The crimp must result in either an “F” crimp (closed seam with no insulation in the seam), an overlap crimp (tips overlap and wrap firmly without cutting insulation), or a scroll crimp (each tip curls inward to touch the insulation) for wires with reduced insulation thickness. The wire must be centered within the crimped insulation barrel.
Crimp length: Defined as the portion of the wire barrel (excluding bellmouths) fully formed by the crimping tool.
Bellmouths: Front and rear bellmouths shall be evident. For special terminal 160928 crimping, bellmouth dimensions are required to be 0.5 mm to 0.76 mm.
Cutoff tab and burr: Must not exceed the dimensions given in the applicator sheet.
Wire barrel flash: Must not exceed the specified limit.
Wire location: Conductors and insulation must be visible in the transition area between wire barrel and insulation barrel. Conductors may extend beyond the wire barrel only up to the maximum dimension shown in the applicator sheet.
Wire barrel seam: Must be closed with no loose wire strands visible.
Twist and roll: No deformation that would prevent proper mating is allowed. Twist and roll is permissible only within the limits shown in Figure 3 of the specification.
Straightness: Bending caused by crimping is acceptable within stated limits (up/down and side‑to‑side). Periodic inspections are required to ensure consistent crimp formation.

Tensile Inspection (Pull Test):

Crimped contacts must hold the wire firmly and meet minimum pull‑test tensile values. The required minimum forces for each wire size are:

The tensile testing machine head travel must be adjusted to 25.4 mm [1.0 in] per minute, and force applied directly and gradually for one minute.

Contact Insertion:

Each contact is inserted into its cavity from the wire end of the housing. An audible or tactile “click” indicates full seating. After insertion, gently pull the wire back to ensure the contact’s locking lance has engaged the housing’s locking finger.
Panel Mounting (for .187 and .250 series receptacle housings):
Although the 180900 is cable mount, the specification provides panel cutout dimensions for .250 series housings of various sizes (4, 6, 8 circuits). For reference, the panel dimensions A–J are given in Figure 7 of the PDF, but the 180900’s specific panel mounting is not described – it is a free‑hanging version.

Mating:

The polarization features of the plug housing and receptacle housing must be aligned before pushing the housings together.

Repair:

Damaged or defective contacts or housings must not be used. If a damaged contact is detected before insertion, cut the wire at the back of the contact and re‑terminate. If damage occurs after insertion, cut the wire directly at the wire end of the housing and use new contacts or housings.

(3) Environmental Compliance 

The 180900 complies with the following regulations based on the provided product text:
EU RoHS (2011/65/EU): Compliant. This includes Delegated Directive 2015/863/EU. For EEE categories 8 and 9, restrictions apply from July 22, 2021.
EU ELV Directive 2000/53/EC: Compliant.
China RoHS 2 (MIIT Order No. 32, 2016): No restricted substances above threshold.
EU REACH (EC) No. 1907/2006: SVHC‑free according to the latest ECHA Candidate List (February 2026, 253 substances). Declaration updated to February 2026.
Halogen Content: Low halogen – Br, Cl, F < 900 ppm in each homogeneous material. Also BFR/CFR/PVC free.
Solder Process Capability: Not suitable for soldering processes.
Compliance Declaration: Available as PDF with login.

(4)Qualification and Certification

FASTIN‑FASTON connectors, including the 180900 housing series, are Recognized under the Component Program of Underwriters Laboratories, Inc. (UL) in File E28476, and Certified by CSA International in File LR7189.

(5) Tooling 

The specification lists various hand tools, applicators, and power units for terminating FASTIN‑FASTON contacts. Examples include:
Hand tool 189508‑1 (double action) for loose‑piece contacts.
Applicators such as 567487‑2, 687979‑3, 687981‑1, 466683‑1, 466737‑1, 687839‑1, etc., for different wire sizes and insulation diameters.
Power units: AMPOMATOR CLS IV, AMP‑O‑LECTRIC Model “G” terminating machines.
Contact extraction tool: Universal handle assembly 465629‑1 with extraction tip 465665‑1.
Detailed instructional materials (408‑series, 409‑series) are available for tool setup, crimp monitoring, and quality control.

(6) Visual Aid for Production

The specification includes an illustration (Figure 8, End) showing a typical application of .110, .187, .250, .312, and .375 series FASTIN‑FASTON housings and contacts. Production personnel should use that visual aid to ensure correct application. Any application that does not appear correct should be inspected using the specification and instructional material.

(7) Conclusion – Summary Based on Provided Data

The 1800900 receptacle housing (FASTIN‑FASTON .250 series, 4‑position, natural nylon, cable mount) is designed for wire‑to‑wire applications. It accepts stranded wires from 26 AWG to 8 AWG. The housing can be used at temperatures up to 125 °C. Proper crimping requires strict adherence to the defined parameters (crimp height, bellmouths, seam closure, pull test values). The product is RoHS, ELV, China RoHS, and REACH compliant, with low halogen content. It is UL recognized (File E28476) and CSA certified (LR7189). A range of TE‑recommended applicators and hand tools are available for reliable termination. Storage precautions include protection from UV light, certain chemicals, and proper reel orientation. Natural nylon housings may discolor over time without affecting function. Contact insertion provides a tactile “click” and must be verified by a gentle pull test. Damaged components must be replaced.