153244-2020-RB Equivalent & Substitute Parts

Part Overview

The 3M 153244-2020-RB is a 44-position rectangular connector receptacle designed for surface mount applications with 0.079" (2.00mm) pitch. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 105°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Receptacle, Bottom or Top Entry
Number of Positions	44
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Contact Finish - Mating	Gold
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 105°C
Current Rating	1A
Voltage Rating	500VDC
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution for the 153244-2020-RB is based on the following critical parameters that must align for functional equivalence:

Connector geometry: 44 positions, 2 rows, 0.079" (2.00mm) pitch and row spacing
Mating interface: Gold contact finish, push-pull fastening, surface mount termination
Electrical performance: Current and voltage ratings sufficient for the application
Environmental compliance: UL94 V-0 flammability rating, RoHS compliance, MSL 1 rating
Mechanical compatibility: Board-to-board or cable-to-board configuration with matching entry orientation

The substitute parts NPPN222GFNP-RC and NPPN222GFNS-RC from Sullins Connector Solutions satisfy these core substitution criteria. Both are header connectors with identical position count, pitch, row spacing, and surface mount configuration. The primary distinction between these substitutes is the presence or absence of board guide features.

Parameter Comparison

Parameter	153244-2020-RB (3M)	NPPN222GFNP-RC (Sullins)	NPPN222GFNS-RC (Sullins)
Connector Type	Receptacle, Bottom or Top Entry	Header, Top or Bottom Entry	Header, Top or Bottom Entry
Number of Positions	44	44	44
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Contact Finish - Mating	Gold	Gold	Gold
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Operating Temperature	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating (Amps)	1A	2A	2A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

Both NPPN222GFNP-RC and NPPN222GFNS-RC are active production alternatives to the obsolete 153244-2020-RB. Selection between these two Sullins options depends on mechanical design requirements:

NPPN222GFNP-RC includes board guide features, providing enhanced mechanical alignment during mating operations. This variant is suitable for applications requiring positive positioning control.

NPPN222GFNS-RC omits board guide features, offering a simplified mechanical interface. This variant is appropriate for applications where alignment is managed through other design elements.

Both substitutes exceed the electrical performance of the original part, with 2A current rating versus the original 1A specification. Operating temperature range for the substitutes is -40°C to 105°C, which covers the upper portion of the original -55°C to 105°C range. Applications requiring operation below -40°C require design review.

Both substitutes maintain UL94 V-0 flammability compliance and achieve ROHS3 compliance status, supporting modern regulatory requirements. Moisture sensitivity level remains MSL 1 for both alternatives.

Frequently Asked Questions (FAQ)

Q: Can NPPN222GFNP-RC and NPPN222GFNS-RC be used interchangeably with 153244-2020-RB?

A: Both Sullins connectors are mechanically and electrically compatible with the 3M receptacle. The primary difference is the presence of board guide features in NPPN222GFNP-RC. Selection depends on whether your PCB layout accommodates or requires these guide features.

Q: What is the difference between NPPN222GFNP-RC and NPPN222GFNS-RC?

A: Both parts are identical except for board guide features. NPPN222GFNP-RC includes board guides; NPPN222GFNS-RC does not. Choose based on your mechanical design requirements.

Q: Does the lower operating temperature limit of the substitutes affect compatibility?

A: The substitutes operate from -40°C to 105°C, compared to the original -55°C to 105°C. If your application requires operation below -40°C, the substitutes are not suitable without design modification or alternative sourcing.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both NPPN222GFNP-RC and NPPN222GFNS-RC are ROHS3 compliant, meeting current regulatory requirements.

Q: What is the current rating difference between the original and substitute parts?

A: The original 153244-2020-RB is rated for 1A, while both Sullins substitutes are rated for 2A. This higher rating in the substitutes provides additional design margin for current-carrying applications.

Q: Are there packaging differences between the substitute parts?

A: Both NPPN222GFNP-RC and NPPN222GFNS-RC are supplied in tube packaging, consistent with standard connector distribution formats.

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