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BJ300-02-Y-A Equivalent & Substitute Parts
Part Overview
The BJ300-02-Y-A is a 2-position solid state lighting (SSL) connector manufactured by GCT, designed for board-to-board or cable applications with a 4.00mm pitch. This surface mount, right-angle socket connector features solder termination and is rated for 300V at 3A continuous current across an operating temperature range of -55°C to 105°C.
The BJ300-02-Y-A is classified as obsolete. Identifying equivalent and substitute connectors is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Socket |
| Number of Positions | 2 |
| Pitch | 0.157" (4.00mm) |
| Mounting Type | Surface Mount, Right Angle |
| Termination | Solder |
| Voltage Rating | 300V |
| Current Rating | 3A |
| Operating Temperature | -55°C ~ 105°C |
| Contact Material | Phosphor Bronze / Copper Alloy |
| Contact Finish | Tin |
| Housing Material | Liquid Crystal Polymer (LCP) / Polyamide (PA9T) |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the BJ300-02-Y-A is evaluated based on the following critical parameters that must match or exceed the original specification:
- Connector Type & Mating: The substitute must be a receptacle connector compatible with the socket configuration of the BJ300-02-Y-A
- Position Count & Pitch: Exactly 2 positions at 0.157" (4.00mm) pitch to ensure mechanical and electrical alignment
- Electrical Ratings: Minimum 300V voltage rating and 3A current rating to support the same power delivery requirements
- Mounting & Termination: Surface mount, right-angle orientation with solder termination for PCB integration
- Environmental Compliance: Operating temperature range of -55°C to 105°C and ROHS3 compliance for regulatory alignment
- Moisture Sensitivity: MSL 1 rating for unlimited shelf life without special storage requirements
The 02R-LEBSS-TB (JST Sales America Inc., LEB series) meets all critical substitution criteria and is classified as an active product with current manufacturing support.
Parameter Comparison
| Parameter | BJ300-02-Y-A (GCT) | 02R-LEBSS-TB (JST) | Match Status |
|---|---|---|---|
| Connector Type | Socket | Receptacle | Compatible Pair |
| Number of Positions | 2 | 2 | Match |
| Pitch | 0.157" (4.00mm) | 0.157" (4.00mm) | Match |
| Mounting Type | Surface Mount, Right Angle | Surface Mount, Right Angle | Match |
| Termination | Solder | Solder | Match |
| Voltage Rating | 300V | 300V | Match |
| Current Rating | 3A | 3A | Match |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | Match |
| Contact Finish | Tin | Tin | Match |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Match |
Engineering Selection Recommendations
The 02R-LEBSS-TB is a direct functional equivalent for the obsolete BJ300-02-Y-A. Selection should be based on the following factors:
Product Status: The BJ300-02-Y-A is obsolete with no ongoing manufacturing support. The 02R-LEBSS-TB is an active product with current inventory availability (36,577 pcs in stock) and ongoing manufacturer support from JST Sales America Inc.
Regulatory Compliance: Both connectors are ROHS3 compliant and carry MSL 1 ratings, ensuring equivalent environmental and regulatory standing for new designs or production continuity.
Electrical & Mechanical Equivalence: All critical electrical parameters (300V, 3A) and mechanical specifications (2-position, 4.00mm pitch, surface mount, right-angle, solder termination) are identical, ensuring direct functional substitution without circuit redesign.
Supply Chain Continuity: The 02R-LEBSS-TB offers superior supply chain security through active manufacturing status and significantly higher inventory levels compared to the obsolete BJ300-02-Y-A.
Frequently Asked Questions (FAQ)
Q: Can the 02R-LEBSS-TB directly replace the BJ300-02-Y-A in existing designs?
A: Yes. Both connectors are 2-position, 4.00mm pitch, surface mount, right-angle solder connectors with identical electrical ratings (300V, 3A) and operating temperature ranges (-55°C to 105°C). The socket-receptacle pairing is mechanically and electrically compatible.
Q: What is the difference between a socket and receptacle connector?
A: The BJ300-02-Y-A is a socket connector (male contact configuration), while the 02R-LEBSS-TB is a receptacle connector (female contact configuration). These are complementary connector types designed to mate with each other, forming a complete board-to-board or cable connection.
Q: Are there packaging differences between these connectors?
A: The BJ300-02-Y-A packaging is not specified in available documentation. The 02R-LEBSS-TB is supplied in Tape & Reel (TR) format, which is standard for surface mount production environments and supports automated assembly processes.
Q: Do both connectors meet the same regulatory standards?
A: Yes. Both the BJ300-02-Y-A and 02R-LEBSS-TB are ROHS3 compliant, carry MSL 1 (unlimited) moisture sensitivity ratings, and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.
Q: What is the current availability status of each connector?
A: The BJ300-02-Y-A is obsolete with limited remaining inventory (911 pcs). The 02R-LEBSS-TB is an active product with substantial current inventory (36,577 pcs) and ongoing manufacturing support, making it the recommended choice for new production or long-term supply requirements.
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