TE Connectivity Erni 284891 DIN B2 32-Position Backplane Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 284891 is a 32-position DIN B/2 (1/2 B) backplane connector receptacle with female sockets, designed for through-hole mounting applications. This connector features gold-plated contacts, press-fit termination, and operates across the industrial temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Key Parameters

Parameter	Value	Criticality for Substitution
Connector Type	Receptacle, Female Sockets	Critical
Number of Positions	32	Critical
Pitch	0.100" (2.54mm)	Critical
Number of Rows	2	Critical
Style	B/2 (1/2 B)	Critical
Mounting Type	Through Hole	Critical
Termination	Press-Fit	Critical
Contact Finish	Gold	Critical
Operating Temperature Range	-55°C to 125°C	Critical
Material Flammability Rating	UL94 V-0	Critical
Moisture Sensitivity Level	1 (Unlimited)	Important
RoHS Status	ROHS3 Compliant	Important

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity Erni 284891 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

32-position configuration with 2-row arrangement
0.100" (2.54mm) pitch spacing
Female socket receptacle type
Gold contact finish
Operating temperature range of -55°C to 125°C minimum
UL94 V-0 flammability rating

Mechanical Compatibility Requirements:

B/2 (1/2 B) DIN connector style
Through-hole mounting configuration
Press-fit termination method

Compliance Requirements:

Moisture Sensitivity Level 1 (Unlimited)
ECCN EAR99 classification
HTSUS code 8536.69.4040

The substitute part TE Connectivity AMP Connectors 650864-5 satisfies all critical electrical and mechanical parameters. Variations in insulation material composition (polyester glass-filled versus polybutylene terephthalate glass-filled) remain within acceptable substitution boundaries provided both materials meet UL94 V-0 flammability requirements and maintain equivalent electrical performance across the specified temperature range.

Parameter Comparison

Parameter	TE Connectivity Erni 284891	TE Connectivity AMP 650864-5	Match Status
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Equivalent
Number of Positions	32	32	Equivalent
Number of Rows	2	2	Equivalent
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	Equivalent
Style	B/2 (1/2 B)	B/2 (1/2 B)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination	Press-Fit	Press-Fit	Equivalent
Contact Finish	Gold	Gold	Equivalent
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	Equivalent
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Material - Insulation	Polybutylene Terephthalate (PBT), Glass Filled	Polyester, Glass Filled	Functionally Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS	8536.69.4040	8536.69.4040	Equivalent
Product Status	Obsolete	Active	Substitute is Active

Engineering Selection Recommendations

Primary Substitute: TE Connectivity AMP Connectors 650864-5

The TE Connectivity AMP Connectors 650864-5 is the qualified substitute for the obsolete TE Connectivity Erni 284891. This part maintains full electrical and mechanical compatibility across all critical parameters including connector type, position count, pitch, mounting configuration, and termination method.

Compliance and Availability Advantages:

The substitute part carries Active product status, ensuring continued availability and manufacturing support. Both parts maintain identical ROHS3 compliance status and EAR99 export classification. The substitute part is currently in stock with 1,459 units available, compared to the main part's 1,247 units. Both parts satisfy UL94 V-0 flammability requirements and operate across the identical -55°C to 125°C temperature range.

Material Composition Consideration:

The substitute part utilizes polyester glass-filled insulation material in place of the main part's polybutylene terephthalate (PBT) glass-filled material. Both materials achieve UL94 V-0 flammability classification and maintain equivalent electrical performance across the specified operating temperature range. This material variation does not impact functional substitution eligibility.

Packaging Difference:

The main part is supplied in Tray packaging, while the substitute part is supplied in Bulk packaging. This packaging difference affects inventory management and handling procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity AMP 650864-5 be used as a direct replacement for the TE Connectivity Erni 284891 in existing PCB designs?

A: Yes. Both parts are 32-position DIN B/2 receptacles with identical pitch (0.100"), mounting type (through-hole), and termination method (press-fit). The connector footprint and electrical interface are equivalent, permitting direct substitution in PCB layouts designed for the original part.

Q: What is the significance of the different insulation materials between the two parts?

A: The main part uses polybutylene terephthalate (PBT) glass-filled material, while the substitute uses polyester glass-filled material. Both materials meet UL94 V-0 flammability requirements and maintain electrical performance across the -55°C to 125°C operating range. The material difference does not affect substitution eligibility for this connector category.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical ROHS3 compliance status, EAR99 export classification, and HTSUS code 8536.69.4040. Both achieve UL94 V-0 flammability rating and Moisture Sensitivity Level 1 (Unlimited). No compliance barriers exist to substitution.

Q: How does the packaging difference affect component selection?

A: The main part is supplied in Tray packaging while the substitute is supplied in Bulk packaging. This affects inventory handling, storage, and pick-and-place automation compatibility. Bulk packaging typically requires reel or tube consolidation for automated assembly processes. Verify packaging compatibility with your assembly operations before finalizing procurement.

Q: Why is the main part classified as Obsolete while the substitute is Active?

A: Product status reflects manufacturer production and support lifecycle. The Erni 284891 has reached end-of-life status, while the AMP 650864-5 remains in active production. Substitution to the active part ensures long-term availability and manufacturing support for ongoing system requirements.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts are 32-position receptacles with gold-plated contacts, identical pitch spacing, and equivalent operating temperature ranges. No electrical performance differences exist between the parts for standard backplane connector applications.

Q: What should be verified before implementing this substitution in production?

A: Verify PCB footprint compatibility, connector mating interface alignment, and packaging handling procedures for your assembly process. Confirm that bulk packaging meets your production automation requirements. Both parts maintain identical electrical specifications, eliminating the need for circuit-level validation.

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