Equivalent & Substitute Parts for 52601-G40-4 Rectangular Connector Header

Part Overview

The 52601-G40-4 is a vertical rectangular connector header manufactured by Amphenol ICC (FCI) in the Quickie™ series. This through-hole component features 40 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, designed for board-to-board or cable interconnection applications. The connector utilizes shrouded 4-wall construction with solder termination and push-pull fastening.

The 52601-G40-4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for legacy systems utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Insulation Material	Thermoplastic
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Features	Keying Slot

Substitute Part Grouping Explanation

Substitution eligibility for the 52601-G40-4 is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 40
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Shrouding: Shrouded - 4 Wall
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Contact Shape: Square
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Features: Keying Slot

All identified substitute parts maintain these critical parameters. Variations in secondary parameters such as contact material, insulation material composition, contact finish specifications, and product status are documented to support informed component selection based on application requirements and compliance mandates.

Parameter Comparison

Parameter	52601-G40-4	52601-G40-4LF	0702464001	0702464002	0702464004	103309-8	5103309-8	SBH11-NBPC-D20-ST-BK
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Molex	Molex	Molex	TE Connectivity AMP	TE Connectivity AMP	Sullins Connector Solutions
Series	Quickie™	Quickie™	C-Grid 70246	C-Grid 70246	C-Grid 70246	AMP-Latch	AMP-Latch	SBH11
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	40	40	40	40	40	40	40	40
Number of Rows	2	2	2	2	2	2	2	2
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)
Row Spacing - 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)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
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 Shape	Square	Square	Square	Square	Square	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black
Features	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Primary Recommendation: 52601-G40-4LF

The 52601-G40-4LF is the direct active equivalent manufactured by Amphenol ICC (FCI) in the same Quickie™ series. This part maintains identical mechanical and electrical specifications to the obsolete 52601-G40-4 while offering active product status. The transition from RoHS non-compliant to RoHS Compliant status and REACH Affected designation reflects modern regulatory alignment. This part is the preferred choice for direct replacement in legacy system maintenance and new production runs requiring Amphenol ICC connector compatibility.

Secondary Recommendations: Molex C-Grid 70246 Series

The Molex parts 0702464001, 0702464002, and 0702464004 from the C-Grid 70246 series provide cross-manufacturer substitution with active product status and ROHS3 Compliant certification. These parts maintain all critical mechanical parameters and feature enhanced insulation material composition (Polybutylene Terephthalate with glass filling) compared to the thermoplastic insulation of the original design. All three Molex variants carry REACH Unaffected status. Selection among these three Molex options depends on packaging requirements (Tray for 0702464001 and 0702464004; Bulk for 0702464002) and contact finish thickness specifications.

Tertiary Recommendations: TE Connectivity AMP-Latch Series

The TE Connectivity parts 103309-8 and 5103309-8 from the AMP-Latch series provide cross-manufacturer substitution. The 5103309-8 is preferred due to ROHS3 Compliant and REACH Unaffected status, compared to the RoHS non-compliant and REACH Affected designation of 103309-8. Both parts feature brass contact material and tin or tin-lead post finishes. Operating temperature range of -65°C to 105°C and 1A per contact current rating are specified for these variants.

Quaternary Recommendation: Sullins Connector Solutions SBH11 Series

The SBH11-NBPC-D20-ST-BK from Sullins Connector Solutions provides cross-manufacturer substitution with ROHS3 Compliant and REACH Unaffected status. This part features brass contact material with gold finish on both mating and post surfaces. Operating temperature range extends to -40°C to 105°C with 3A current rating per contact. Insulation material is polyamide (nylon) rather than thermoplastic. Multiple mated stacking heights are available (9.65mm, 11.2mm, 13.35mm, 18.35mm).

Compliance Considerations:

For applications requiring RoHS3 compliance and REACH Unaffected status, select from: 52601-G40-4LF, 0702464001, 0702464002, 0702464004, 5103309-8, or SBH11-NBPC-D20-ST-BK.

For legacy systems with no regulatory compliance requirements, 103309-8 remains functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can the 52601-G40-4 be directly replaced with 52601-G40-4LF?

A: Yes. The 52601-G40-4LF is the active equivalent of the obsolete 52601-G40-4, manufactured by the same company (Amphenol ICC) in the same Quickie™ series. All critical mechanical and electrical parameters are identical. The primary difference is product status (Active vs. Obsolete) and regulatory compliance (RoHS Compliant vs. RoHS non-compliant).

Q: What are the key differences between Amphenol ICC and Molex substitutes?

A: Both manufacturers provide 40-position, 2-row, 0.100" pitch headers with identical shrouding and mounting specifications. Molex C-Grid 70246 series parts feature Polybutylene Terephthalate (PBT) glass-filled insulation versus Amphenol ICC's thermoplastic insulation. Molex parts specify contact length for mating at 0.240" (6.10mm) versus Amphenol ICC's 0.230" (5.84mm). All Molex variants carry ROHS3 Compliant and REACH Unaffected status.

Q: Are TE Connectivity AMP-Latch parts (103309-8 and 5103309-8) interchangeable?

A: Mechanically and electrically, yes. Both parts are functionally equivalent with identical 40-position, 2-row configuration and 0.100" pitch. The primary distinction is regulatory status: 5103309-8 is ROHS3 Compliant and REACH Unaffected, while 103309-8 is RoHS non-compliant and REACH Affected. For new designs and applications subject to regulatory compliance mandates, 5103309-8 is the appropriate selection.

Q: What packaging options are available for substitute parts?

A: Amphenol ICC 52601-G40-4LF is supplied in Tray packaging. Molex 0702464001 and 0702464004 are supplied in Tray; 0702464002 is supplied in Bulk. TE Connectivity 103309-8 and 5103309-8 are supplied in Tube. Sullins Connector Solutions SBH11-NBPC-D20-ST-BK is supplied in Tray. Packaging selection depends on production volume requirements and inventory management protocols.

Q: Do all substitute parts maintain the same contact material?

A: No. The original 52601-G40-4 and its direct equivalent 52601-G40-4LF use Phosphor Bronze contacts. Molex C-Grid 70246 series parts also use Phosphor Bronze. TE Connectivity AMP-Latch parts (103309-8 and 5103309-8) use Brass contacts. Sullins SBH11-NBPC-D20-ST-BK uses Brass contacts. Contact material differences do not affect mechanical compatibility but may influence electrical performance characteristics in specific applications.

Q: Are there operating temperature differences among substitute parts?

A: The original 52601-G40-4 does not specify an operating temperature range. The 52601-G40-4LF and Molex C-Grid 70246 series also do not specify operating temperature. TE Connectivity AMP-Latch parts specify -65°C to 105°C. Sullins SBH11-NBPC-D20-ST-BK specifies -40°C to 105°C. For applications requiring extended low-temperature operation, TE Connectivity parts provide the widest range.

Q: What is the significance of contact finish thickness variations?

A: Contact finish thickness affects durability and electrical performance over connector mating cycles. The original 52601-G40-4 specifies 30.0µin (0.76µm) mating finish thickness. Molex parts vary from 5.00µin to 30.0µin. TE Connectivity parts specify 30.0µin. Sullins parts specify flash finish. Thicker finishes generally provide longer service life in high-cycle applications.

Q: Can Sullins SBH11-NBPC-D20-ST-BK be used in applications requiring specific mated stacking heights?

A: Yes. The SBH11-NBPC-D20-ST-BK offers multiple mated stacking height options: 9.65mm, 11.2mm, 13.35mm, and 18.35mm. Other substitute parts do not specify multiple stacking height configurations. If application PCB layout requires specific connector stack height, verify Sullins part availability in the required dimension.

Q: Which substitute part offers the highest current rating per contact?

A: The Sullins SBH11-NBPC-D20-ST-BK specifies 3A per contact. TE Connectivity AMP-Latch parts specify 1A per contact. Amphenol ICC and Molex parts do not specify current ratings. For high-current applications, Sullins provides the highest rated capacity.

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