RF TXRX MOD BLUETOOTH CHIP SMD 450-0169C Equivalent & Substitute Parts

Part Overview

The Laird Connectivity Inc. 450-0169C is a Bluetooth and WiFi 802.11a/b/g/-c transceiver module designed for surface mount integration. This Sterling-LWB™ series component integrates a BCM43353 IC and operates across the 2.402GHz to 2.48GHz frequency band with a maximum data rate of 433.3Mbps. The part is currently designated as Last Time Buy, indicating end-of-life status. Identification of equivalent substitute parts is necessary to ensure continued design support, maintain supply chain continuity, and access components with extended product lifecycles and enhanced performance characteristics.

Substiute Parts

450-0169C

Laird Connectivity Inc.In Stock: 1258450-0169C Datasheet

Current PartRFQ

453-00045C

Laird Connectivity Inc.In Stock: 921453-00045C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 450-0169C is determined by strict alignment of the following electrical and mechanical parameters:

RF Protocol Compatibility: The substitute part must support Bluetooth and WiFi standards. The 450-0169C operates under 802.11a/b/g/-c and Bluetooth protocols. Substitute parts must maintain backward compatibility with these standards while potentially extending support to newer protocol versions.

Frequency Band Coverage: The primary operating band is 2.402GHz to 2.48GHz. Substitute parts must cover this frequency range as a minimum requirement.

Serial Interface Support: The 450-0169C provides PCM, SDIO, and UART interfaces. Substitute parts must support at least these interfaces to ensure firmware and hardware integration compatibility.

Mounting and Package Specifications: Surface mount technology with SMD module packaging is required. Physical form factor compatibility is essential for PCB layout reuse.

Supply Voltage Range: The 450-0169C operates at 3.2V to 3.6V. Substitute parts must support this voltage range or a compatible superset range.

Operating Temperature Range: The -40°C to 85°C operating temperature specification must be maintained or exceeded.

Regulatory Compliance: RoHS compliance and REACH unaffected status are mandatory for equivalent substitution.

Manufacturer Consistency: Parts from Laird Connectivity Inc. are preferred to ensure design support continuity and technical documentation alignment.

The identified substitute part 453-00045C meets these criteria while providing enhanced capabilities in protocol support, frequency coverage, and interface options.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Same Design, End-of-Life Mitigation):

The 453-00045C is the manufacturer-recommended substitute for the 450-0169C. Both components are manufactured by Laird Connectivity Inc. and share the same RF family classification, operating temperature range, and MSL rating. The substitute maintains backward compatibility with the 802.11a/b/g/-c and Bluetooth protocols required by the original design.

Design Considerations:

The 453-00045C operates with an extended supply voltage range (3.2V to 4.8V versus 3.2V to 3.6V), providing greater flexibility in power supply design. The substitute supports additional serial interfaces (GPIO, HCI, SPI, USB) beyond the original PCM, SDIO, and UART, enabling enhanced integration options without requiring interface removal.

The package transition from 47-SMD Module to 68-SMD Module requires PCB layout modification. This is a mechanical change that does not affect electrical compatibility but necessitates design review and validation.

Compliance Status:

Both parts maintain RoHS compliance and REACH unaffected status. The 453-00045C achieves ROHS3 compliance, representing current regulatory alignment. The substitute part is in Active product status, ensuring long-term availability and technical support.

Performance Enhancement:

The 453-00045C provides improved receiver sensitivity (-96dBm versus -93dBm) and increased transmit power (18dBm versus 16dBm). The addition of 5GHz band support (5.15GHz to 5.825GHz) enables dual-band WiFi capability not present in the original design. These enhancements are backward compatible and do not degrade performance in existing 2.4GHz applications.

Frequently Asked Questions (FAQ)

Q: Can the 453-00045C be used as a direct replacement for the 450-0169C without firmware changes?

A: The 453-00045C maintains full backward compatibility with the 802.11a/b/g/-c and Bluetooth protocols supported by the 450-0169C. However, the package change from 47-SMD to 68-SMD Module requires PCB layout modification. Firmware compatibility depends on the specific implementation; consult Laird Connectivity Inc. technical documentation for your application.

Q: What is the impact of the package size change from 47-SMD to 68-SMD Module?

A: The package change is a mechanical modification affecting PCB footprint and layout. The 68-SMD Module is physically larger and requires updated PCB design files, component placement, and routing. Electrical performance and interface compatibility remain unchanged. PCB redesign and validation are necessary before production implementation.

Q: Does the 453-00045C support the same serial interfaces as the 450-0169C?

A: The 453-00045C supports all interfaces present in the 450-0169C (PCM, SDIO, UART) plus additional interfaces (GPIO, HCI, SPI, USB). Existing designs using PCM, SDIO, and UART will function without interface modification. Additional interfaces are available for enhanced functionality if required.

Q: Is the extended supply voltage range (3.2V to 4.8V) of the 453-00045C compatible with designs using 3.2V to 3.6V power supplies?

A: Yes. The 453-00045C operates within the original 3.2V to 3.6V range and extends the upper limit to 4.8V. Existing power supply designs operating at 3.2V to 3.6V are fully compatible. The extended range provides flexibility for future designs but does not require power supply modification for existing implementations.

Q: What are the key performance differences between the 450-0169C and 453-00045C?

A: The 453-00045C provides improved receiver sensitivity (-96dBm versus -93dBm), increased transmit power (18dBm versus 16dBm), and dual-band WiFi support including 5GHz operation. Data rate remains 433.3Mbps. These enhancements are backward compatible with existing 2.4GHz applications.

Q: Are both parts RoHS compliant?

A: Yes. The 450-0169C is RoHS Compliant. The 453-00045C is ROHS3 Compliant, representing current regulatory standards. Both parts are REACH Unaffected.

Q: What is the significance of the Last Time Buy status for the 450-0169C?

A: Last Time Buy status indicates the part is at end-of-life. Laird Connectivity Inc. has designated a final purchase window before production discontinuation. The 453-00045C is the manufacturer-recommended substitute with Active product status, ensuring continued availability and technical support.