ST-0503-3

Specifications Item Unit Specification Condition Rated Voltage Vo-p 3.0 Vo-p Operating Voltage Vo-p 2.0 ~ 4.0 ST BUZZER Mean Current mA 110 Max. Acoustic Product Specification Coil Resistance Ω 12 ±3 Sound Output dBA 75 Rated Frequency Hz 4000 Operating Temp ℃ -30 ~ +70 Storage Temp ℃ -40 ~ +80 Dimension mm L5.0 × W5.0 × H2.7 Weight gram 0.3 Product Number: ST-0503-3 Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Material LCP (Black) Terminal SMD type (Plating Sn) Environmental Protection Regulation RoHS At rated voltage, 4000 Hz square wave, ½ duty At 10cm(A-weight free air), at rated voltage 4000Hz, square wave, ½ duty See attached drawing See attached drawing Test Condition Temperature : +25±2 ℃ Relative Humidity: 65±5% Air Pressure: 86-106KPa Mechanical Characteristics Page 1 Specifications Item Test condition Evaluation standard Mechanical Characteristics Solderability Lead terminals are immersed in rosin for 5 seconds and then immersed in the solder bath at +250 ±5℃ for 3 ±1 seconds. 90% min. lead terminals shall be wet with solder No interference in operation. Soldering Heat Resistance The product follows the reflow temperature curve to test its reflow thermal stability. Terminal Mechanical Strength Lead pads shall be soldered onto the pcb, and a force of 9.8N (1.0kg) shall be applied to the part for 10 seconds. No damage and cutting off Vibration The part shall be subjected to a vibration cycle of 10Hz to 55Hz to 10Hz in a period of 1 minute. Total peak amplitude shall be 1.52mm(9.3G). The vibration test shall consist of 2 hours per axis in each three axes (X,Y,Z). Total 6 hours. After the test, the part shall meet specifications without any damage in appearance and performance, except SPL. SPL should be in ±10dBA compared with initial one. Drop Test The part is dropped from a height of 75cm onto a 40mm thick wooden board 3 times in 3 axes (X,Y,Z). Total of 9 times. Page 2 Environment Test Reliability Test Page 3 Recommended Temperature Profile Measurement Method Page 4 Frequency Response Curve Driving Circuit Page 5 Dimensions Page 6 Packing www.soberton.com 1 Environment Test Item Test condition Evaluation standard High Temp. Test The part is placed in a chamber at +80℃ for 48 hours Low Temp. Test The part is placed in a chamber at -40℃ for 48 hours Thermal Shock The part shall be subjected to 10 cycles. Each cycle shall consist of: After the test, the part shall meet specifications without any degradation in appearance and performance, except SPL. After 4 hours at +25℃, the SPL should be in ±10dBA compared with initial one. Temp./Humidity Cycle The part shall be subjected to 10 cycles. One cycle shall be 24 hours and consist of: ST BUZZER Acoustic Product Specification Product Number: ST-0503-3 Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Page 1 Specifications Mechanical Characteristics Page 2 Environment Test Reliability Test Page 3 Recommended Temperature Profile Measurement Method Page 4 Frequency Response Curve Reliability Test Item Test condition Evaluation standard Operating Life Test Ordinary Temperature The part shall be subjected to 100 hours of continuous operation at +25 ±10ºC. After the test, the part shall meet specifications without any degradation in appearance and performance, except SPL. After 4 hours at +25℃, the SPL should be in±10dBA compared with initial one. High Temperature The part shall be subjected to 50 hours of continuous operation at +70ºC at 3.0V, 4000Hz applied. Low Temperature The part shall be subjected to 50 hours of continuous operation at -30℃ at 3.0V, 4000Hz applied. Driving Circuit Page 5 Dimensions Page 6 Packing Standard test condition: a) Temperature: +5~+35℃ b) Humidity: 45~85% c) Pressure: 86~106KPa 2 www.soberton.com Recommended Temperature Profile for Reflow Oven ST BUZZER Recommendable wave soldering condition is as follows: Note 1: It is requested that reflow soldering should be executed after heat of product goes down to normal temperature. Note 2: Peak reflow temperature of 250˚C maximum of 10 seconds, with a maximum duration of 40-60 seconds between 220˚C and 250˚C Acoustic Product Specification Product Number: ST-0503-3 Measurement Method Acoustic Characteristics: The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below : Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Page 1 Specifications Mechanical Characteristics Page 2 Environment Test In the measuring test, buzzer is placed as follows: Reliability Test Page 3 Recommended Temperature Profile Measurement Method Page 4 Frequency Response Curve Driving Circuit Page 5 Dimensions Page 6 Packing 3 www.soberton.com Typical Frequency Response Curve ST BUZZER Acoustic Product Specification Product Number: ST-0503-3 Driving Circuit The base current Ib should high enough so that it saturates the collector current of the transistor with the CB load. Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Page 1 Specifications Mechanical Characteristics Page 2 Environment Test Reliability Test Page 3 Recommended Temperature Profile Measurement Method Page 4 Frequency Response Curve Driving Circuit Page 5 Dimensions Page 6 Packing 4 www.soberton.com Dimensions Tolerance: ±0.3 (unit: mm) ST BUZZER Acoustic Product Specification Product Number: ST-0503-3 Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Page 1 Specifications Mechanical Characteristics Page 2 Environment Test No. Part Name Material Quantity 1 Case LCP 1 2 Core Ferrum 1 3 Coil Copper 1 4 Magnet Ring NdFeB 1 5 Diaphragm Ferrum 1 6 Case LCP 1 Reliability Test Page 3 Recommended Temperature Profile Measurement Method Page 4 Frequency Response Curve Driving Circuit Page 5 Dimensions Page 6 Packing 5 www.soberton.com Packing ST BUZZER Acoustic Product Specification Product Number: ST-0503-3 Release | Revision: C/2018 CONTENTS This document contains the technical specifications for the electromagnetic buzzer. Page 1 Specifications Mechanical Characteristics Page 2 Environment Test Reliability Test Page 3 Recommended Temperature Profile Packing Job L x W x H (mm) Pieces Inner Box 330 x 330 x 30 1 x 2500 = 2,500pcs Carton Box 370 x 350 x 350 10 x 2500 = 25,000pcs Measurement Method Page 4 Frequency Response Curve Driving Circuit Page 5 Dimensions Page 6 Packing 6 www.soberton.com