BS 1740

The three parts on the right have similar specifications to Knowles. & BS 1740.

• Part Number
• Manufacturer
• Package
• Description

• CI44S-15W45-M-1 Challenge Electronics

  IEC SPK IND WIRE LEAD MULTI TONE

• CT09E-04T273-5 Challenge Electronics

  MAGNETIC XDCR 2-4V TH

• CT25E-16T75-1 Challenge Electronics

  IEC MAGNETIC XDCR 8-16V TH

• SMT-1027-S-4-R PUI Audio, Inc.

  BUZZER MAGNETIC 3.6V 10X10MM SMD

• CT10E-04S283-4 Challenge Electronics

  MAGNETIC XDCR 3-4.6V TH

• CT18P-18S200-1 Challenge Electronics

  PIEZO XDCR 1-18V SMT

• CI35P-30E240-P-23X Challenge Electronics

  PIEZO IND 6-30V PANEL

• CT08E-06S300-2 Challenge Electronics

  MAGNETIC XDCR 3-6V SMT

• AT-1810-T-LWC50-R PUI Audio, Inc.

  PIEZO TRANSDUCER

• MIKROE-5389 MikroElektronika

  PIEZO BUZZER (14MM)