TE Connectivity AMP Connectors 4-881545-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-881545-2 is a 2-position shunt connector from the AMPMODU series, designed for use in applications requiring low-voltage interconnection with standard 0.100" (2.54mm) pitch spacing. This component features an open top grip design with tin contact finish and is rated for 3A current capacity. The part is currently active in production and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across critical specifications including position count, pitch spacing, current rating, contact gender, and material flammability classification. Alternative sources become necessary for inventory availability, lead time optimization, or specific application requirements related to contact finish or housing material properties.

Key Parameters

Parameter	Value	Criticality for Substitution
Number of Positions	2 (1 x 2)	Critical
Pitch Spacing	0.100" (2.54mm)	Critical
Current Rating	3A	Critical
Gender	Female Sockets	Critical
Material Flammability Rating	UL94 V-0	Critical
Contact Finish	Tin	Secondary
Housing Material	Thermoplastic, Glass Filled	Secondary
RoHS Status	ROHS3 Compliant	Critical
MSL Rating	1 (Unlimited)	Secondary

Substitute Part Grouping Explanation

Substitution eligibility for the 4-881545-2 is determined by strict alignment with the following critical parameters:

Critical Matching Parameters:

Position count: 2 (1 x 2) configuration
Pitch spacing: 0.100" (2.54mm)
Current rating: 3A minimum
Contact gender: Female sockets
Material flammability: UL94 V-0 classification
RoHS3 compliance status

Secondary Variation Parameters:

Contact finish material (tin, gold, or equivalent)
Housing material composition (thermoplastic variants, polyamide alternatives)
Physical height and form factor
Voltage rating specifications

The Adam Tech MSBH-G qualifies as a substitute part because it maintains all critical electrical and mechanical parameters while introducing variations in secondary characteristics. Both parts share identical position count, pitch spacing, current capacity, contact gender, flammability rating, and RoHS compliance. Differences in contact finish (gold versus tin), housing material (polyamide versus glass-filled thermoplastic), and physical height represent acceptable secondary variations that do not compromise functional equivalence in standard 0.100" pitch connector applications.

Parameter Comparison

Parameter	TE Connectivity 4-881545-2	Adam Tech MSBH-G	Match Status
Manufacturer	TE Connectivity AMP Connectors	Adam Tech	Different
Number of Positions	2 (1 x 2)	2 (1 x 2)	Equivalent
Pitch Spacing	0.100" (2.54mm)	0.100" (2.54mm)	Equivalent
Gender	Female Sockets	Female Sockets	Equivalent
Current Rating	3A	3A	Equivalent
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Contact Finish	Tin	Gold (Flash)	Different
Housing Material	Thermoplastic, Glass Filled	Polyamide (PA66), Nylon 6/6	Different
Height	0.429" (10.90mm)	0.531" (13.50mm)	Different
Connector Type	Open Top, Grip	Closed Top, Grip	Different
Voltage Rating	Not specified	250VAC	Specified in substitute
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Part Selection (TE Connectivity 4-881545-2): Select the original TE Connectivity 4-881545-2 when open top connector design is required for the application. This part maintains active production status with established supply chain availability (14,200 pcs in stock). The open top configuration provides accessibility for manual shunt insertion and removal operations. Tin contact finish is suitable for standard soldering and wave soldering processes. Glass-filled thermoplastic housing provides specified mechanical properties for the application.

Substitute Part Selection (Adam Tech MSBH-G): The Adam Tech MSBH-G serves as a functional equivalent when closed top connector design is acceptable or preferred. This substitute maintains all critical electrical parameters and compliance certifications. The closed top design provides enhanced contact retention and environmental protection. Gold flash contact finish offers improved corrosion resistance compared to tin. Polyamide housing material (PA66, Nylon 6/6) provides alternative mechanical characteristics. The increased physical height (13.50mm versus 10.90mm) requires verification of available board space and connector clearance in the target application. This part maintains active production status with adequate inventory availability (7,895 pcs in stock).

Compliance Basis: Both parts maintain ROHS3 compliance and UL94 V-0 flammability rating, satisfying regulatory requirements for equivalent applications. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special handling requirements during storage or assembly. The Adam Tech substitute provides specified 250VAC voltage rating, exceeding the unspecified voltage capability of the original part.

Frequently Asked Questions (FAQ)

Q: Can the Adam Tech MSBH-G directly replace the TE Connectivity 4-881545-2 in existing designs?

A: The Adam Tech MSBH-G maintains electrical equivalence through matching position count, pitch spacing, current rating, and contact gender. Physical differences exist: the MSBH-G is 0.102" (2.60mm) taller and features closed top design versus open top. Board layout and connector clearance must accommodate the increased height. The closed top design eliminates manual shunt accessibility, requiring pre-insertion before board assembly.

Q: What is the functional difference between open top and closed top connector designs?

A: Open top connectors (4-881545-2) allow manual shunt insertion and removal after board assembly, providing field serviceability. Closed top connectors (MSBH-G) require shunt pre-insertion before assembly and provide enhanced contact retention and environmental sealing. Selection depends on application requirements for field adjustability versus sealed operation.

Q: Are the contact finishes interchangeable?

A: Tin and gold contact finishes are both acceptable for 0.100" pitch shunt connectors at 3A current rating. Gold finish (MSBH-G) provides superior corrosion resistance in high-humidity or corrosive environments. Tin finish (4-881545-2) is standard for general-purpose applications. Both finishes are compatible with standard soldering processes. Contact finish selection should align with environmental exposure and expected service life requirements.

Q: Do both parts meet the same compliance standards?

A: Both parts maintain ROHS3 compliance and UL94 V-0 flammability rating. Both carry MSL 1 (Unlimited) moisture sensitivity rating. The Adam Tech MSBH-G provides specified 250VAC voltage rating. The TE Connectivity 4-881545-2 does not specify voltage rating. For applications requiring documented voltage specifications, the MSBH-G provides explicit 250VAC rating.

Q: What housing material differences exist between these parts?

A: The TE Connectivity 4-881545-2 uses glass-filled thermoplastic housing. The Adam Tech MSBH-G uses polyamide (PA66, Nylon 6/6) housing. Both materials meet UL94 V-0 flammability requirements. Glass-filled thermoplastic provides enhanced rigidity and thermal stability. Polyamide provides superior chemical resistance and impact absorption. Material selection should align with environmental exposure, mechanical stress, and thermal operating conditions.

Q: Are inventory levels adequate for both parts?

A: The TE Connectivity 4-881545-2 maintains 14,200 pcs in stock. The Adam Tech MSBH-G maintains 7,895 pcs in stock. Both parts carry active production status. Inventory levels support standard procurement timelines for both original and substitute selections.

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