AT04-4P-SR02BLU Equivalent & Substitute Parts

Part Overview

The AT04-4P-SR02BLU is a 4-position rectangular connector receptacle housing manufactured by Amphenol Sine Systems Corp as part of the ATSeries™SR02 product line. This connector is designed for free-hanging, in-line applications requiring crimp termination with latch holder fastening. The blue housing variant is actively produced and maintained in inventory, with 628 units currently available as new original stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, allowing for functional interchangeability in applications where housing color does not impose design constraints.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Male Pin
Number of Positions	4
Number of Rows	2
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Holder
Insulation Material	Thermoplastic
Operating Temperature Range	-55°C ~ 125°C
Features	Cap (Cover), IP68, IP69K, Reduced Wire Seals, Strain Relief
Series	ATSeries™SR02
Base Product Number	AT04-4P
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the AT04-4P-SR02BLU are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Mandatory Equivalence Parameters:

Connector type (Receptacle)
Contact type (Male Pin)
Number of positions (4)
Number of rows (2)
Mounting type (Free Hanging, In-Line)
Contact termination method (Crimp)
Fastening type (Latch Holder)
Insulation material (Thermoplastic)
Operating temperature range (-55°C ~ 125°C)
Feature set (Cap/Cover, IP68, IP69K, Reduced Wire Seals, Strain Relief)
Series designation (ATSeries™SR02)
Base product number (AT04-4P)
Regulatory compliance (ROHS3, REACH Unaffected)

Variable Parameters Permitting Substitution:

Housing color (Blue vs. Gray)

Parts meeting all mandatory equivalence criteria are classified as parametric equivalents and may be substituted where housing color does not impose functional or design requirements.

Parameter Comparison

Parameter	AT04-4P-SR02BLU	AT04-4P-SR02GRY
Manufacturer	Amphenol Sine Systems Corp	Amphenol Sine Systems Corp
Category	Rectangular Connectors	Rectangular Connectors
Series	ATSeries™SR02	ATSeries™SR02
Base Product Number	AT04-4P	AT04-4P
Connector Type	Receptacle	Receptacle
Contact Type	Male Pin	Male Pin
Number of Positions	4	4
Number of Rows	2	2
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp
Fastening Type	Latch Holder	Latch Holder
Insulation Material	Thermoplastic	Thermoplastic
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Features	Cap (Cover), IP68, IP69K, Reduced Wire Seals, Strain Relief	Cap (Cover), IP68, IP69K, Reduced Wire Seals, Strain Relief
Housing Color	Blue	Gray
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS Code	8538.90.6000	8538.90.6000

Engineering Selection Recommendations

Both the AT04-4P-SR02BLU and AT04-4P-SR02GRY maintain active product status with full regulatory compliance under ROHS3 and REACH standards. Selection between these parts is determined by application-specific housing color requirements.

The AT04-4P-SR02BLU (blue housing) carries 628 units in current inventory stock. The AT04-4P-SR02GRY (gray housing) carries 1482 units in current inventory stock. Both parts are manufactured to identical electrical and mechanical specifications within the ATSeries™SR02 product line.

When housing color is not a functional requirement, either part may be selected based on availability and supply chain considerations. Both parts support the same operating temperature range (-55°C to 125°C), feature set (IP68/IP69K sealing, reduced wire seals, strain relief, and protective cap), and termination methodology (crimp with latch holder fastening).

Frequently Asked Questions (FAQ)

Q: Can AT04-4P-SR02GRY be used as a direct replacement for AT04-4P-SR02BLU?

A: Yes, the AT04-4P-SR02GRY is a parametric equivalent substitute. All electrical and mechanical specifications are identical. The only difference is housing color (gray versus blue). Substitution is valid when housing color does not impose design or application constraints.

Q: What are the key parameters that define substitutability for this connector?

A: Substitutability is determined by equivalence in connector type (receptacle), contact type (male pin), position count (4), row configuration (2 rows), mounting method (free hanging in-line), termination type (crimp), fastening mechanism (latch holder), insulation material (thermoplastic), operating temperature range (-55°C to 125°C), and feature set (cap, IP68/IP69K, reduced wire seals, strain relief). Housing color is not a substitution-limiting parameter.

Q: Are contacts included with both part numbers?

A: The AT04-4P-SR02BLU specification indicates contacts are included. The AT04-4P-SR02GRY specification notes that contacts are not included. Verify contact requirements and availability separately when selecting the gray housing variant.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both AT04-4P-SR02BLU and AT04-4P-SR02GRY are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and 8538.90.6000 HTSUS code.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the range of -55°C to 125°C, supporting applications in extreme thermal environments.

Q: Are there differences in sealing or environmental protection between the two variants?

A: No. Both parts feature identical environmental protection: IP68 and IP69K ratings, reduced wire seals, strain relief, and protective cap (cover).

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