Molex 0524840910 Equivalent & Substitute Parts

Part Overview

The Molex 0524840910 is a 9-position rectangular receptacle connector with IDC (Insulation Displacement Contact) termination, designed for discrete wire applications in the 26-28 AWG range. This connector features tin contact finish and operates with a 0.079" (2.00mm) pitch in a single-row, free-hanging in-line configuration with detent lock fastening.

The 0524840910 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	9
Pitch	0.079" (2.00mm)
Cable Termination	IDC
Wire Gauge	26-28 AWG
Contact Finish	Tin
Mounting Type	Free Hanging (In-Line)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the Molex 0524840910 is determined by strict alignment of the following parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 9 positions at 0.079" (2.00mm) pitch
Termination Method: IDC cable termination for discrete wires
Wire Gauge Compatibility: 26-28 AWG or 26 AWG (subset of the original range)
Contact Finish: Tin plating
Mounting Configuration: Free hanging in-line orientation
Compliance: ROHS3 compliant

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Parameter	Molex 0524840910	TE Connectivity 173977-9	JST 09KR-D6S-P
Manufacturer	Molex	TE Connectivity AMP Connectors	JST Sales America Inc.
Connector Type	Receptacle	Receptacle	Socket
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	9	9	9
Pitch	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	1	1	1
Cable Termination	IDC	IDC	IDC
Wire Gauge	26-28 AWG	26-28 AWG	26 AWG
Contact Finish	Tin	Tin	Tin
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line), Right Angle
Color	Natural	Natural	Natural
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99
HTSUS Code	8536.69.8000	8536.69.8000	8536.69.8000

Engineering Selection Recommendations

TE Connectivity 173977-9 is the manufacturer-recommended substitute. This part maintains full parameter alignment with the Molex 0524840910, including identical wire gauge range (26-28 AWG), connector type (receptacle), and mounting configuration. The part is active in production with substantial inventory availability (18,585 pcs), ensuring long-term supply continuity. ROHS3 compliance and EAR99 classification match the original specification.

JST 09KR-D6S-P provides an alternative substitute with the following considerations: The part supports 26 AWG wire gauge, which is within the original 26-28 AWG range but does not extend to 28 AWG. The mounting type includes both free hanging in-line and right-angle options, providing additional mechanical flexibility. This part is active in production with high inventory availability (1,229 pcs). ROHS3 compliance and EAR99 classification are maintained.

Selection between these substitutes depends on specific application requirements regarding wire gauge range and mounting orientation flexibility.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 173977-9 be used as a direct replacement for the Molex 0524840910?

A: Yes. Both parts are 9-position receptacle connectors with IDC termination, 0.079" pitch, tin contact finish, and support 26-28 AWG wire gauge. Mechanical and electrical parameters are equivalent.

Q: What is the key difference between the TE Connectivity 173977-9 and JST 09KR-D6S-P?

A: The JST part supports 26 AWG wire gauge only, whereas both the Molex original and TE Connectivity substitute support 26-28 AWG. The JST part also offers right-angle mounting as an additional option. Selection depends on whether 28 AWG wire compatibility is required and whether mounting orientation flexibility is needed.

Q: Are all three parts ROHS3 compliant?

A: Yes. The Molex 0524840910, TE Connectivity 173977-9, and JST 09KR-D6S-P are all ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity).

Q: What does IDC termination mean?

A: IDC (Insulation Displacement Contact) termination allows discrete wires to be inserted directly into the connector without prior stripping. The connector contacts pierce the wire insulation and make electrical contact with the conductor.

Q: Is the Molex 0524840910 still available?

A: The Molex 0524840910 is classified as obsolete. However, 837 pcs are currently in stock. For new designs or long-term supply requirements, the active substitutes (TE Connectivity 173977-9 or JST 09KR-D6S-P) are recommended.

Q: Do these connectors require any special tools for assembly?

A: IDC connectors require an IDC crimping tool appropriate for the wire gauge and connector type. Specific tool requirements depend on the connector series and should be verified with the manufacturer's assembly documentation.

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