Non-contact ultrasonic transducer BBID-DSS-B

immersibleproximity

Overview
The BBID-DSS-B is a 125 kHz ultrasonic transducer designed for reliable single- and double-sheet detection in printing, packaging, paper-feeding and metal/plastic sheet inspection systems. Recommended detection range is 0.12 to 2 m with a -3 dB half-power beam angle of 13.5° ±10%, providing a predictable acoustic footprint for integration.

Detection layout and electrical matching
Plan the acoustic path, target position and mounting to suit the actual sheet material and process. Drive/receive electronics must support a minimum impedance of 600 Ω, capacitance 560 pF at 1 kHz, and peak voltage below 1,200 Vpp. The transducer mounts via an M18 × 1.5 thread and is rated for -40 to +80°C, up to 3 kgf (0.3 MPa) and IP68. Weight: 23 g ±5% with 1 m cable.

BBID-DSS-B technical specifications (table)

• Model: BBID-DSS-B
• Center frequency: 125 kHz ±5%
• Recommended range: 0.12 to 2 m
• Minimum impedance: 600 Ω ±20%
• Capacitance: 560 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <1,200 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤3 kgf (0.3 MPa)
• Half-power beam angle: 13.5° ±10% at -3 dB
• Mounting thread: M18 × 1.5
• Protection rating: IP68
• Weight: 23 g ±5% with 1 m cable

Available acoustic configurations (table)

• 125 kHz ±5% — Recommended range 0.12 to 2 m — Half-power angle 13.5° ±10% — Mounting: M18 × 1.5 thread
• 200 kHz ±5% — Recommended range 0.10 to 1.5 m — Half-power angle 8° ±10% — Mounting: M18 × 1.5 thread
• 200 kHz ±5% — Recommended range 0.15 to 1.5 m — Half-power angle 3.8° ±10% — Mounting: refer to dimensional drawing

Notes
The primary production configuration is 125 kHz. The "-B" suffix is retained in the model name but is not defined as a separate performance feature.

Key characteristics / technical specifications

• Applications: printing and packaging, paper feeding systems, metal/plastic sheet inspection, automated double-feed detection
• Impedance, capacitance and voltage limits must be respected for reliable detection
• Compact M18 mounting and IP68 rating enable integration in confined or wet production environments