HARTING 09185506921 Equivalent & Substitute Parts

Part Overview

The HARTING 09185506921 is an active rectangular connector header designed for through-hole, right-angle board-to-cable applications. This shrouded 50-position connector with 2.54mm pitch serves as a standard interface component in electronic assemblies requiring reliable push-pull fastening and keyed mating. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity for this connector category.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Termination	Solder
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the HARTING 09185506921 is determined by strict equivalence across the following critical parameters:

Connector geometry: 50-position, 2-row configuration with 0.100" (2.54mm) pitch and row spacing
Mounting interface: Through-hole, right-angle orientation for board-to-cable/wire connection
Electrical interface: Male pin contacts with gold mating finish and tin post finish
Mechanical fastening: Push-pull mechanism with keying slot and 4-wall shrouding
Termination method: Solder attachment
Environmental compliance: UL94 V-0 flammability rating and RoHS compliance

The substitute part N3433-5002RB (3M) meets these core substitution criteria. Variations in contact post length, insulation material composition, and operating temperature maximum do not preclude functional equivalence within standard application parameters.

Parameter Comparison

Parameter	HARTING 09185506921	3M N3433-5002RB
Manufacturer	HARTING	3M
Series	SEK	3000
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	50	50
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.177" (4.50mm)	0.112" (2.84mm)
Insulation Height	0.335" (8.51mm)	0.340" (8.64mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy
Termination	Solder	Solder
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the HARTING 09185506921 and 3M N3433-5002RB are active products with equivalent mechanical and electrical interfaces for 50-position, 2.54mm pitch rectangular connector applications. Both components maintain UL94 V-0 flammability certification and RoHS compliance, supporting use in regulated electronic assemblies.

The 3M N3433-5002RB operates within a reduced maximum temperature range (-55°C to 105°C versus -55°C to 125°C), which may be a limiting factor in high-temperature applications. The shorter contact post length (0.112" versus 0.177") requires verification of PCB pad depth compatibility during board design integration.

Selection between these parts should be based on supply availability, cost considerations, and specific thermal operating requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 3M N3433-5002RB directly replace the HARTING 09185506921 in existing designs?

A: Direct mechanical and electrical replacement is supported. The connector geometry, pitch, row configuration, and mating interface are identical. Verify that PCB pad depth accommodates the shorter contact post length of the 3M part (0.112" versus 0.177").

Q: What are the key differences between these two parts?

A: The primary differences are contact post length, maximum operating temperature, and insulation material composition. The 3M part features a shorter post and operates to 105°C maximum, while the HARTING part operates to 125°C. Both maintain identical mating pitch, shrouding, and fastening characteristics.

Q: Are both parts RoHS compliant?

A: Yes. The HARTING 09185506921 is ROHS3 compliant, and the 3M N3433-5002RB is RoHS compliant. Both meet regulatory requirements for restricted substance elimination.

Q: What is the significance of the contact post length difference?

A: Contact post length determines solder joint depth on the PCB. The HARTING part (0.177") provides greater post length than the 3M part (0.112"). PCB design must accommodate the shorter post length if substituting to the 3M connector to ensure adequate solder joint formation.

Q: Do both connectors support the same current and voltage ratings?

A: The 3M N3433-5002RB specifies a current rating of 1.75A. The HARTING part does not provide explicit current or voltage ratings in the available specifications. Application-specific electrical requirements should be verified against manufacturer datasheets.

Q: Are there temperature-related constraints for substitution?

A: Applications requiring sustained operation above 105°C should use the HARTING 09185506921, which is rated to 125°C. The 3M part is suitable for applications within the -55°C to 105°C range.

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