PIS-0381 LoRa Antenna Equivalent & Substitute Parts

Part Overview

The PIS-0381 is a 433MHz/470MHz/868MHz/915MHz/923MHz LoRa whip antenna manufactured by Pi Supply with 3dBi gain and N Type connector termination. This part is classified as Obsolete, making identification of equivalent and substitute components necessary for ongoing system design, maintenance, and procurement activities. The antenna is designed for wide-band ISM frequency operation across five distinct frequency bands with connector-mount installation.

Substiute Parts

PIS-0381

Pi SupplyIn Stock: 1157PIS-0381 Datasheet

Current PartRFQ

NBR-0041

Pi SupplyIn Stock: 871NBR-0041 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIS-0381 is based on the following critical parameters:

Matching Criteria:

• Antenna Type: Whip, Straight configuration
• Gain: 3dBi
• Termination: N Type Connector
• Mounting Type: Connector Mount
• Application: LoRa systems
• Frequency Compatibility: Operational overlap within ISM bands

Substitution Logic: The NBR-0041 qualifies as a substitute based on identical antenna geometry (whip, straight), matching gain specification (3dBi), identical connector type (N Type), and shared LoRa application. While the NBR-0041 operates as a single-band antenna (445MHz center, 420MHz–470MHz range) compared to the PIS-0381's five-band coverage, the 470MHz band of the PIS-0381 falls within the NBR-0041's operational frequency range, establishing functional compatibility for applications utilizing the 470MHz band.

Parameter Comparison

Engineering Selection Recommendations

NBR-0041 Substitution Applicability:

The NBR-0041 is an active product with ROHS3 compliance, providing supply continuity for the obsolete PIS-0381. Both antennas share identical mechanical and electrical core specifications: whip/straight antenna geometry, 3dBi gain, N Type termination, and connector-mount installation for LoRa applications.

Frequency Band Consideration:

The NBR-0041 operates as a single-band antenna with a 420MHz–470MHz frequency range. The PIS-0381 covers five discrete bands. Substitution is valid for applications requiring operation within the 420MHz–470MHz range, which encompasses the PIS-0381's 470MHz band. Applications requiring operation at 433MHz, 868MHz, 915MHz, or 923MHz bands require alternative solutions outside the NBR-0041 specification.

Compliance Status:

The NBR-0041 carries ROHS3 compliance certification, meeting current regulatory requirements. Both parts maintain MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent handling and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can the NBR-0041 replace the PIS-0381 in all applications?

A: No. The NBR-0041 is a single-band antenna (420MHz–470MHz) while the PIS-0381 covers five bands. Substitution is valid only for applications operating within the 420MHz–470MHz range. Applications requiring 433MHz, 868MHz, 915MHz, or 923MHz operation require alternative components.

Q: What are the mechanical compatibility requirements?

A: Both antennas use identical mounting specifications: N Type connector termination and connector-mount installation. Physical installation is directly compatible without modification.

Q: Are there compliance differences between the two parts?

A: The NBR-0041 carries ROHS3 compliance certification. The PIS-0381 compliance status is not specified in available documentation. Both maintain identical MSL 1 (Unlimited) ratings.

Q: Why is the PIS-0381 listed as Obsolete?

A: The PIS-0381 is classified as Obsolete, indicating discontinued manufacturing. The NBR-0041, listed as Active, represents the current product offering from Pi Supply for LoRa antenna applications within the 420MHz–470MHz band.

Q: What is the gain specification, and is it identical between parts?

A: Both the PIS-0381 and NBR-0041 specify 3dBi gain. This matching specification ensures equivalent RF performance characteristics for applications within compatible frequency ranges.

Q: Are packaging and inventory considerations relevant to substitution?

A: Both parts are supplied in Bulk packaging. Inventory availability differs: PIS-0381 shows 1130 pieces (Obsolete stock), while NBR-0041 shows 857 pieces (Active production). For new designs, the NBR-0041 is the recommended selection due to active product status.