TE Connectivity AMP Connectors 3-1437026-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-1437026-4 is a 10 Position Rectangular Receptacle Connector with IDC termination, gold-plated contacts, and support for 26-28 AWG wire gauges. This connector belongs to the 636 Series and features a dual-row configuration with 0.100" pitch spacing and polarizing key functionality. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing applications and new designs.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	10
Pitch	0.100" (2.54mm)
Number of Rows	2
Row Spacing	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Gauge	26-28 AWG
Contact Finish	Gold
Features	Feed Through, Polarizing Key

Substitute Part Grouping Explanation

Substitution of rectangular connectors is determined by strict equivalence across electrical and mechanical parameters. The primary substitution criteria for the 3-1437026-4 are:

Critical Parameters for Substitution:

Connector type (Receptacle) and contact type (Female Socket)
Number of positions (10) and row configuration (2 rows)
Pitch and row spacing (0.100" / 2.54mm)
Cable termination method (IDC)
Contact finish (Gold)
Mounting type (Free Hanging In-Line)

Wire Gauge Compatibility: The main part supports 26-28 AWG. Substitute parts with 26-28 AWG wire gauge provide direct compatibility. The 66900-110LF supports 28-30 AWG, which represents a narrower gauge range and is listed as a substitute based on the provided input data.

Feature Alignment: The polarizing key feature is present in the main part and in substitute parts 89110-0101 and CWR-227-10-0000, ensuring mechanical keying compatibility. Substitute parts without this feature (66900-110LF and 89110-0001) remain functionally compatible for applications not requiring polarization enforcement.

Parameter Comparison

Parameter	3-1437026-4 (TE Connectivity)	09185107803 (HARTING)	66900-110LF (Amphenol ICC)	89110-0001 (3M)	89110-0101 (3M)	CWR-227-10-0000 (CW Industries)
Manufacturer	TE Connectivity AMP	HARTING	Amphenol ICC (FCI)	3M	3M	CW Industries
Series	636	SEK	Quickie™	891	891	CWR
Product Status	Obsolete	Active	Active	Active	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	10	10	10	10	10	10
Pitch	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 Rows	2	2	2	2	2	2
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Cable Termination	IDC	IDC	IDC	IDC	IDC	IDC
Wire Gauge	26-28 AWG	26-28 AWG	28-30 AWG	26-28 AWG	26-28 AWG	Not Specified
Contact Finish	Gold	Gold	Gold, GXT™	Gold	Gold	Gold
Features	Feed Through, Polarizing Key	Feed Through, Polarizing Key	Feed Through	Feed Through	Feed Through, Polarizing Key	Feed Through, Polarizing Key
RoHS Status	RoHS Non-Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	Vendor Undefined	REACH Unaffected	REACH Unaffected	Vendor Undefined	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The 89110-0101 (3M Series 891) and 09185107803 (HARTING SEK Series) are the preferred substitutes for the 3-1437026-4. Both parts maintain exact equivalence across all critical electrical and mechanical parameters, including 10 positions, 0.100" pitch, 2-row configuration, IDC termination, 26-28 AWG wire gauge support, and gold contact finish. Both substitute parts are active products with ROHS3 compliance, addressing the obsolescence of the original part while meeting modern regulatory requirements.

Secondary Substitutes (Functional Compatibility with Parameter Variance):

The 89110-0001 (3M Series 891) provides functional equivalence with identical electrical and mechanical specifications but lacks the polarizing key feature. This part is suitable for applications where polarization enforcement is not required. The CWR-227-10-0000 (CW Industries CWR Series) maintains all critical parameters including polarizing key functionality but does not specify wire gauge in the provided data. The 66900-110LF (Amphenol ICC Quickie™ Series) supports a narrower wire gauge range (28-30 AWG) compared to the original specification (26-28 AWG) and lacks the polarizing key feature, limiting its application scope.

Regulatory Compliance Consideration:

All substitute parts achieve ROHS3 compliance or RoHS compliance status, whereas the original 3-1437026-4 is RoHS non-compliant. For applications subject to RoHS regulations, substitution with any of the listed active parts ensures regulatory alignment. The REACH status of substitute parts is either REACH Unaffected or Vendor Undefined, providing clarity for supply chain compliance in most cases.

Frequently Asked Questions (FAQ)

Q: Can the 66900-110LF substitute for the 3-1437026-4 in all applications?

A: The 66900-110LF is electrically and mechanically compatible for most applications due to matching connector type, position count, pitch, row configuration, and IDC termination. However, the wire gauge specification differs (28-30 AWG versus 26-28 AWG), and the polarizing key feature is absent. Applications requiring 26 AWG wire support or mechanical polarization should use alternative substitutes.

Q: What is the significance of the polarizing key feature in substitute selection?

A: The polarizing key prevents incorrect connector mating orientation. The original 3-1437026-4 includes this feature. Substitute parts 89110-0101 and CWR-227-10-0000 retain this feature, ensuring identical mating behavior. Parts without the polarizing key (89110-0001 and 66900-110LF) allow mating in any orientation, which may be acceptable depending on application requirements.

Q: Are all substitute parts suitable for new designs?

A: All substitute parts listed are active products, making them suitable for new designs. However, regulatory compliance should be verified for specific applications. The 09185107803, 89110-0001, 89110-0101, and CWR-227-10-0000 all achieve ROHS3 compliance, meeting current regulatory standards. The 66900-110LF achieves RoHS compliance.

Q: How does wire gauge compatibility affect substitution?

A: The original 3-1437026-4 supports 26-28 AWG wire. Substitute parts 09185107803, 89110-0001, and 89110-0101 maintain this exact specification. The 66900-110LF supports 28-30 AWG, which overlaps at 28 AWG but does not support 26 AWG. The CWR-227-10-0000 does not specify wire gauge in available data. For applications using 26 AWG wire, select substitutes that explicitly support this gauge.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: HARTING 09185107803 is supplied in Tray packaging, Amphenol ICC 66900-110LF in Tube packaging, 3M parts (89110-0001 and 89110-0101) in Bulk packaging, and CW Industries CWR-227-10-0000 in Bulk packaging. Packaging selection should align with procurement and assembly requirements.

Q: Does contact finish thickness vary among substitutes?

A: Yes, contact finish thickness differs across parts. The original 3-1437026-4 specifies 15.0µin (0.38µm). Substitute parts provide thicker finishes: 3M parts (89110-0001 and 89110-0101) at 30.0µin (0.76µm), Amphenol ICC 66900-110LF at 30.0µin (0.76µm), and CW Industries CWR-227-10-0000 at 10.0µin (0.25µm). Thicker finishes generally provide enhanced durability and corrosion resistance.

Q: What is the inventory status of substitute parts?

A: All substitute parts maintain substantial inventory levels: HARTING 09185107803 (1,137 pcs), Amphenol ICC 66900-110LF (1,305 pcs), 3M 89110-0001 (7,632 pcs), 3M 89110-0101 (3,986 pcs), and CW Industries CWR-227-10-0000 (2,965 pcs). These inventory levels support both immediate procurement and long-term supply chain planning.

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