Molex 0022284285 Equivalent & Substitute Parts

Part Overview

The Molex 0022284285 is a rectangular connector header for through-hole mounting with 28 positions at 0.100" (2.54mm) pitch. This component is classified as discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The connector features male pins, unshrouded design, and push-pull fastening suitable for board-to-board or cable applications across automotive, medical, and telecommunications sectors.

Key Parameters

Parameter	Value
Manufacturer Part Number	0022284285
Manufacturer	Molex
Series	KK254, 42375
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	28
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Insulation Material	Polyamide (PA), Nylon, Glass Filled
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0022284285 are qualified based on the following critical parameters that must align with the original design:

Mandatory Matching Parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 28
Number of Rows: 1
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Connector Type: Header (with or without breakaway feature)
Insulation Color: Black
Material Flammability Rating: UL94 V-0

Allowable Variations:

Contact Finish - Mating: Gold or Tin-Lead (both acceptable for electrical continuity)
Contact Length - Mating: Variations within 0.268" to 0.318" accommodate different PCB stack-up requirements
Overall Contact Length: Variations within 0.480" to 0.585" support different board thicknesses
Insulation Height: Variations within 0.090" to 0.335" are acceptable for mechanical clearance
Insulation Material: Polyamide, Thermoplastic, Polyester, PBT, PCT, or LCP all meet UL94 V-0 requirements
Operating Temperature Range: Minimum -40°C to 105°C acceptable; extended ranges (-55°C) provide additional margin
Current Rating: Minimum 2A acceptable; higher ratings provide design margin

Substitute parts are grouped by manufacturer and series while maintaining electrical and mechanical compatibility with the original Molex connector.

Parameter Comparison

Parameter	Molex 0022284285	3M 2328-6211-TG	3M 929400-01-28-RK	3M 929450-01-28-EU	3M 961128-6804-AR	Samtec BBS-128-T-B	Samtec HMTSW-128-24-L-S-255	Samtec MTLW-128-22-G-S-400
Manufacturer	Molex	3M	3M	3M	3M	Samtec Inc.	Samtec Inc.	Samtec Inc.
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	28	28	28	28	28	28	28	28
Number of Rows	1	1	1	1	1	1	1	1
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Tin-Lead	Gold	Gold	Tin	Gold	Gold
Contact Length - Mating	0.295" (7.49mm)	0.318" (8.08mm)	0.295" (7.49mm)	0.295" (7.49mm)	0.268" (6.80mm)	0.125" (3.18mm)	0.255" (6.48mm)	0.400" (10.16mm)
Overall Contact Length	0.505" (12.83mm)	0.538" (13.67mm)	0.535" (14.69mm)	0.535" (14.69mm)	0.496" (12.60mm)	0.585" (14.86mm)	0.480" (12.19mm)	0.630" (16.00mm)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.098" (2.50mm)	0.335" (8.51mm)	0.100" (2.54mm)	0.060" (1.52mm)
Contact Shape	Square	Square	Square	Square	Square	Circular	Square	Square
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT)	Thermoplastic	Polyester, Glass Filled	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Natural	Black
Operating Temperature	Not specified	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-25°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating (Amps)	Not specified	3A	2.5A	2.5A	2A	Not specified	3A	5.2A per Contact
RoHS Status	ROHS3 Compliant	Not specified	RoHS non-compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

3M 929400-01-28-RK and 3M 929450-01-28-EU are the most direct equivalents. Both maintain identical pitch, position count, contact type, and mounting configuration. The 929450-01-28-EU variant is preferred for new designs due to RoHS Compliant status and gold mating finish matching the original Molex specification. The 929400-01-28-RK offers an alternative with tin-lead mating finish and RoHS non-compliant status, suitable for legacy applications where RoHS compliance is not required.

3M 2328-6211-TG (Series 2300) provides active product status with RoHS compliance not specified in available data. This part features slightly longer mating contact length (0.318" vs. 0.295") and higher current rating (3A), making it suitable for applications requiring enhanced current capacity.

Secondary Substitutes (Acceptable with Design Verification):

3M 961128-6804-AR (Series 961) maintains core electrical parameters with shorter mating contact length (0.268") and lower current rating (2A). This variant is suitable for space-constrained applications or lower-current designs. RoHS Compliant status and MSL 1 rating support modern manufacturing requirements.

Samtec HMTSW-128-24-L-S-255 and HMTSW-128-23-L-S-236 (Flex Stack series) offer extended operating temperature range (-55°C to 125°C) and higher current capacity (3A). These parts feature Liquid Crystal Polymer insulation and phosphor bronze contacts, providing enhanced performance margins. Natural insulation color differs from the original black specification. ROHS3 Compliant status supports current regulatory requirements.

Samtec MTLW-128-22-G-S-400 provides the highest current rating (5.2A per contact) and extended temperature range (-55°C to 125°C). Significantly longer overall contact length (0.630") and lower insulation height (0.060") require PCB design verification for mechanical compatibility.

Not Recommended:

Samtec BBS-128-T-B features circular contact shape (vs. square) and significantly different mechanical dimensions (insulation height 0.335", overall contact length 0.585"). Material flammability rating is not specified. This part requires comprehensive design re-validation and is suitable only for applications where contact geometry change is acceptable.

Compliance Considerations:

For applications requiring RoHS3 Compliance, select from: 3M 929450-01-28-EU, 3M 961128-6804-AR, Samtec HMTSW-128-24-L-S-255, Samtec HMTSW-128-23-L-S-236, or Samtec MTLW-128-22-G-S-400.

For applications requiring MSL 1 (Unlimited) rating, select from: 3M 2328-6211-TG, 3M 929450-01-28-EU, 3M 961128-6804-AR, Molex 0022284285, or Samtec MTLW-128-22-G-S-400.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different contact finish (tin vs. gold)?

A: Yes. Both tin and gold finishes provide acceptable electrical conductivity for this connector category. Gold offers superior corrosion resistance and is preferred for high-reliability applications. Tin-lead finishes are acceptable for general-purpose applications where RoHS compliance is not required. Contact finish selection should align with mating connector specifications and environmental exposure conditions.

Q: What is the impact of different contact length variations?

A: Contact length variations (0.268" to 0.400") accommodate different PCB stack-up configurations and board thicknesses. Shorter contacts (0.268") suit thin PCB assemblies, while longer contacts (0.400") support thicker stack-ups or applications requiring extended mating depth. Verify that selected substitute contact length aligns with your PCB thickness and connector cavity depth specifications.

Q: Are Samtec Flex Stack connectors (HMTSW, MTLW series) direct replacements?

A: Samtec Flex Stack connectors maintain the same pitch, position count, and push-pull fastening but feature different mechanical profiles. HMTSW series offers comparable overall dimensions to the original Molex part. MTLW series has significantly longer overall contact length (0.630") and lower insulation height (0.060"), requiring PCB design verification. These parts are suitable substitutes only after confirming mechanical clearance and mating connector compatibility.

Q: What does RoHS Compliant status mean for connector selection?

A: RoHS3 Compliance indicates the connector meets Restriction of Hazardous Substances regulations, restricting lead, cadmium, mercury, and other hazardous materials. For applications subject to RoHS regulations (EU markets, automotive, medical devices), select RoHS3 Compliant variants. For legacy or non-regulated applications, RoHS non-compliant parts remain acceptable.

Q: How do I verify substitute part compatibility with my existing mating connector?

A: Confirm that the substitute part matches these parameters with your mating connector: pitch (0.100"), number of positions (28), contact type (male pin), and fastening type (push-pull). Verify mechanical dimensions including overall contact length, insulation height, and contact shape. Consult mating connector documentation or contact the connector manufacturer for compatibility confirmation.

Q: What is the significance of MSL (Moisture Sensitivity Level) rating?

A: MSL 1 (Unlimited) indicates the connector has no moisture sensitivity restrictions and requires no special storage or handling precautions. MSL Not Applicable indicates the component is not subject to moisture sensitivity classification. For standard manufacturing environments, both ratings are acceptable. MSL 1 rated parts provide additional flexibility for extended storage without desiccant packaging.

Q: Can I substitute a connector with a higher current rating?

A: Yes. Substituting a connector with higher current rating (e.g., 5.2A vs. 2A) provides design margin and is acceptable. The higher-rated part will safely handle your application's current requirements. Verify that PCB trace sizing and power distribution design accommodate the intended current levels, as connector current rating alone does not determine system current capacity.

Q: What operating temperature range should I select?

A: The original Molex 0022284285 does not specify an operating temperature range. Substitute parts offer ranges from -25°C to 125°C. For general-purpose applications, -40°C to 105°C is standard. For extended temperature applications or automotive/aerospace use, select parts rated -55°C to 125°C. Verify that your application's actual operating temperature falls within the selected part's specified range.

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