BSM-015G-LF Equivalent & Substitute Parts

Part Overview

The BSM-015G-LF is a surface-mount pressure sensor manufactured by Amphenol All Sensors Corporation, designed for board-level applications requiring vented gauge pressure measurement. This component operates at 15PSI (103.42kPa) with analog voltage output ranging from 0 mV to 79.5 mV at 3V supply. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

BSM-015G-LF

Amphenol All Sensors CorporationIn Stock: 802BSM-015G-LF Datasheet

Current PartRFQ

CSM-015G-LF

Amphenol All Sensors CorporationIn Stock: 720CSM-015G-LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete BSM-015G-LF is evaluated based on the following critical parameters that define functional equivalence:

Mandatory Compatibility Parameters:

• Pressure Type: Vented Gauge (atmospheric reference required)
• Mounting Type: Surface Mount (PCB integration method)
• Supply Voltage: 6V (power supply compatibility)
• Operating Temperature Range: -25°C ~ 85°C (thermal envelope)
• Maximum Pressure Rating: 45PSI (310.26kPa) (overpressure protection)
• Port Style: No Port (direct sensor interface)
• Termination Style: SMD (SMT) Tab (soldering method)

Functional Parameters:

• Output Type: Analog Voltage or equivalent signal conditioning
• Output Range: Compatible with 0 mV ~ 79.5 mV (3V) specification
• Accuracy: ±2% or better

The CSM-015G-LF meets all mandatory compatibility parameters. However, the operating pressure specification differs (1PSI vs. 15PSI), and output characteristics vary (Wheatstone Bridge vs. Analog Voltage). These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BSM-015G-LF is classified as obsolete. The CSM-015G-LF is an active product from the same manufacturer, providing ongoing availability and supply chain continuity.

Compliance and Certification: Both parts share identical RoHS non-compliance status, REACH unaffected classification, and ECCN/HTSUS coding (EAR99 / 9026.20.4000), ensuring regulatory equivalence for procurement and export purposes.

Packaging and Mounting: The BSM-015G-LF uses 8-CLCC packaging, while the CSM-015G-LF uses 8-CSMD with no lead configuration. Both employ SMD (SMT) Tab termination suitable for surface-mount assembly. PCB layout modifications may be required due to package geometry differences.

Pressure Range Specification: The operating pressure differs significantly: BSM-015G-LF operates at 15PSI, while CSM-015G-LF operates at 1PSI. Selection depends on application pressure requirements. Both share a 45PSI maximum pressure rating, providing identical overpressure protection.

Output Signal Characteristics: The BSM-015G-LF provides direct analog voltage output (0–79.5 mV). The CSM-015G-LF provides Wheatstone Bridge output (0–66 mV) with temperature compensation. Signal conditioning and analog-to-digital conversion requirements differ between these architectures.

Accuracy Performance: The CSM-015G-LF offers superior accuracy (±0.5%) compared to the BSM-015G-LF (±2%), with integrated temperature compensation. This represents improved measurement precision for applications requiring tighter tolerances.

Frequently Asked Questions (FAQ)

Q: Can the CSM-015G-LF directly replace the BSM-015G-LF without circuit modifications?

A: No. While both parts share identical supply voltage (6V), operating temperature range (-25°C ~ 85°C), and mounting type (surface mount), the output signal types differ fundamentally. The BSM-015G-LF provides analog voltage output; the CSM-015G-LF provides Wheatstone Bridge output. Signal conditioning circuits must be redesigned accordingly.

Q: What is the significance of the different operating pressure ratings?

A: The BSM-015G-LF operates at 15PSI (103.42kPa), while the CSM-015G-LF operates at 1PSI (6.89kPa). This represents a 15-fold difference in nominal pressure range. Selection must align with the actual pressure environment of the application. Both parts withstand 45PSI maximum pressure.

Q: Are the package geometries compatible?

A: No. The BSM-015G-LF uses 8-CLCC packaging; the CSM-015G-LF uses 8-CSMD with no lead configuration. PCB footprints differ. Layout redesign is required for substitution.

Q: What are the advantages of the CSM-015G-LF?

A: The CSM-015G-LF is an active product (vs. obsolete), offers superior accuracy (±0.5% vs. ±2%), includes temperature compensation, and provides ongoing manufacturer support and availability.

Q: Does the CSM-015G-LF require different handling or storage?

A: Both parts share identical MSL rating (1 – Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent.

Q: What is the Wheatstone Bridge output configuration?

A: The CSM-015G-LF provides a Wheatstone Bridge output, which requires a dedicated signal conditioning circuit (typically a bridge amplifier or instrumentation amplifier) to convert the differential voltage to a usable signal. This differs from the direct analog voltage output of the BSM-015G-LF.