Part No. MR-C4255HF

Molex Mini-Fit Jr. Equivalent Receptacle Housing MR-C4255HF (4.20mm Pitch)

Name: Molex Mini-Fit Jr. Equivalent Receptacle Housing MR-C4255HF (4.20mm Pitch)
Brand: Micro-Ray Electronics
SKU: MR-C4255HF

Stock to 10 weeks

The MR-C4255HF Mini-Fit Jr Series–compatible connector housing provides reliable 4.20 mm power connections with up to 9A and 600V performance. Built for durability and easy assembly, it’s an ideal mid-power solution for OEMs, engineers, and repair professionals.

Please call for Pricing and Availability:

Molex Mini-Fit Jr. Equivalent Receptacle Housing MR-C4255HF (4.20mm Pitch)

Call for Pricing

Stock to 10 weeks

Lead times vary by quantity and current production. Please confirm your lead time with Micro-Ray sales before ordering. Contact sales

Request a Quote

Send us the quantity you need and we will come back with pricing and a firm lead time.

Stocked items ship on receipt of order. Made-to-order items ship after production.

Need volume, a custom length, or a cross-reference? Talk to our sales account representative.

Single Row Housing .pdf

Dual Row Housing .pdf

Cross Reference:

Circuits	Flammability	Competitor P/N	Micro-Ray P/N
2	94V-2	39012020, 5557-02R	MR-C4255HF-202-N2NA-A
4	94V-2	39012040, 5557-04R	MR-C4255HF-204-N2NA-A
6	94V-2	39012060, 5557-06R	MR-C4255HF-206-N2NA-A
8	94V-2	39012080, 5557-08R	MR-C4255HF-208-N2NA-A
10	94V-2	39012100, 5557-10R	MR-C4255HF-210-N2NA-A
12	94V-2	39012120, 5557-12R	MR-C4255HF-212-N2NA-A
14	94V-2	39012140, 5557-14R	MR-C4255HF-214-N2NA-A
16	94V-2	39012160, 5557-16R	MR-C4255HF-216-N2NA-A
18	94V-2	39012180, 5557-18R	MR-C4255HF-218-N2NA-A
20	94V-2	39012200, 5557-20R	MR-C4255HF-220-N2NA-A
22	94V-2	39012220, 5557-22R	MR-C4255HF-222-N2NA-A
24	94V-2	39012240, 5557-24R	MR-C4255HF-224-N2NA-A
2	94V-0	39012025, 5557-02R-210	MR-C4255HF-202-N0WH-A
4	94V-0	39012045, 5557-04R-210	MR-C4255HF-204-N0WH-A
6	94V-0	39012065, 5557-06R-210	MR-C4255HF-206-N0WH-A
8	94V-0	39012085, 5557-08R-210	MR-C4255HF-208-N0WH-A
10	94V-0	39012105, 5557-10R-210	MR-C4255HF-210-N0WH-A
12	94V-0	39012125, 5557-12R-210	MR-C4255HF-212-N0WH-A
14	94V-0	39012145, 5557-14R-210	MR-C4255HF-214-N0WH-A
16	94V-0	39012165, 5557-16R-210	MR-C4255HF-216-N0WH-A
18	94V-0	39012185, 5557-18R-210	MR-C4255HF-218-N0WH-A
20	94V-0	39012205, 5557-20R-210	MR-C4255HF-220-N0WH-A
22	94V-0	39012225, 5557-22R-210	MR-C4255HF-222-N0WH-A
24	94V-0	39012245, 5557-24R-210	MR-C4255HF-224-N0WH-A

The MR-C4255HF 4.2 mm connector housing is a high-performance, cost-effective solution for mid-power electrical connections. Designed as a drop-in Mini-Fit Jr. alternative, it delivers secure terminal retention, reliable mating, and consistent electrical performance for a wide range of applications.

Engineered for wire-to-board and wire-to-wire configurations, this connector supports multiple circuit counts and works with standard Mini-Fit Jr. crimp terminals. Its compact 4.2 mm pitch makes it ideal for power supplies, gaming systems, industrial controls, HVAC equipment, and consumer electronics, offering dense, high-current connectivity in a small footprint.

Optimized for durability and easy assembly, the MR-C4255HF ensures stable performance even in demanding environments, making it a reliable choice for OEMs, repair services, and engineers seeking a dependable Mini-Fit Jr. compatible housing.

Technical Features:

Pitch: 4.20 mm
Current Rating: Up to 9A AC/DC
Voltage Rating: 600V AC/DC
Operating Temperature: –25°C to +85°C
Contact Resistance: ≤10 mΩ
Insulation Resistance: ≥1000 MΩ
Withstanding Voltage: 1500V AC for 1 min
Wire Range: AWG 18–24

This MR-C4255HF connector housing offers high-current performance, reliability, and compact design for a wide range of mid-power applications.

Part Number (SKU)	MR-C4255HF
Category	Molex Mini-Fit Jr., 4.2mm Mini-Fit Alternative
Number of Housing Positions	2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
Pitch	4.20 mm
Current Rating	Up to 9A AC/DC
Voltage Rating	600V AC/DC
Operating Temperature	–25°C to +85°C
Contact Resistance	≤10 mΩ
Insulation Resistance	≥1000 MΩ
Withstanding Voltage	1500V AC for 1 min
Wire Range	AWG 18–24
Availability	Made to Order
Typical Lead Time	8-10 weeks

Missing a value you need? Our sales team can supply full specifications and drawings for any part in the catalog. Contact Micro-Ray

Stocked items ship on receipt of order. Made-to-order parts ship once production is complete; your lead time is confirmed on your quote before you commit to an order.

Shipping is calculated at checkout from the weight and dimensions of the parts in your cart. For freight, drop-ship or international orders, contact our sales team and we will quote the best available rate.

Contact Micro-Ray Sales

Related Products

Molex Mini-Fit Jr. Equivalent PCB Header MR-C4255 (4.20mm Pitch)

MR-C4255

Molex Mini-Fit Jr. Equivalent PCB Header MR-C4255 (4.20mm Pitch)

Call for Pricing

Details

Trademark noticeAll manufacturer names, brand names, trade names, logos, model numbers and part numbers appearing on this site — including but not limited to AMP, TE Connectivity, Molex, JST, Phoenix Contact and Hirose — are the property of their respective owners. Micro-Ray Electronics, Inc. is not affiliated with, authorized by, sponsored by or endorsed by any of these companies, except where Micro-Ray Electronics is expressly identified on this site as an authorized distributor or brand partner. Manufacturer part numbers are used solely to identify the original part for which a Micro-Ray part is offered as an equivalent, and no claim is made to any third-party trademark. Micro-Ray parts are our own products, cross-referenced for form, fit and function; they are not the original manufacturer’s parts and carry no original manufacturer warranty.

Full Terms & Conditions of Sale, including our second-source equivalency, technical-data, warranty and liability statements.

Need a Custom Cable Assembly or a Hard-to-Find Connector?

Send us your part number, drawing, or a description of what you need. A real person on our team will get back to you.

Request a Quote Call (732) 892-8799