EM ELECTRET CONDENSER MICROPHONE

Transcription

1 Sensitivity Symbol: S Unit: db Condition: 0dB=V/Pa at khz Limits: Min: -43 Center: -40 Max: 7 Output impedance Symbol: Z out Unit: KΩ Condition: f=khz Limits: Max: 2.2 Product No: EM-405LRNW-40C Current Consumption Symbol: IDSS Unit: µa Condition: VCC =2.0V,RL=2.2KΩ Limits: Max: 500 Signal to Noise Ratio Symbol: S/N Unit: db Condition: at khz S.P.L=Pa (A-Weighted Curve) Release Revision: A/208 Limits: Min: 58 Decreasing Voltage Symbol: ΔS-VS Unit: db Condition: VCC=3.0V to 2.0V Limits: Max: Operating Voltage Page Unit: V Limits: Min:.0 Max: 0 Maximum input S.P.L Unit: db Condition: THD<3%, at KHz Limits: Max: 0 Dimension Ø 4.0x.5mm (component) Ø 4.6x2.3mm (rubber casing) Wire 50mm (UL3302 / AWG32#) + Connector: 25H00-2P-HF Pin :.25mm IP Level IP67

2 Frequency Response Product No: EM-405LRNW-40C Standard Test Fixture Frequency(Hz) Release Revision: A/208 Lower Limit(dB) Upper Limit(dB) Page RL = 2.2KΩ Vs = 2.0V C 0pF C2 33pF C = µf 2

3 Product No: EM-405LRNW-40C Release Revision: A/208 Page No. Part Name Material Quantity Dustproof gauze Non-weave cloth 2 Case Al-mg 3 Diaphragm 4 Spacer 5 Electret Plate 6 Chamber 7 Copper Ring 8 PCB 9 FET 0 Chip Capacitor FR-4 0pF +33pF 2 3

4 Product No: EM-405LRNW-40C Product External and Dimension Unit: mm Release Revision: A/208 Page 4

5 TOP VIEW Product No: EM-405LRNW-40C SIDE VIEW 4.0 ± ± 0.2 Release Revision: A/208 BOTTOM VIEW Page 25H00-2P-HF Pin:.25mm 5

6 Operating Temperature Range -40 ~+85 Storage Temperature Range -40 ~+85 After each of following test, the sensitivity of the microphone should be within ±3dB of initial sensitivity after 3 hours of conditioning at 20. Vibration Test Product No: EM-405LRNW-40C Frequency : 0Hz~55Hz Amplitude:.52mm Change of Frequency : octave/min 2 hours in each of axis High Temperature Test +85 for 240 hours. Low Temperature Test Release Revision: A/ for 240 hours. Humidity Test 90% 95%RH, +60 for 240 hours. Page Thermal Shock Test 40 C, 30 minutes +80 C, 30 minutes, repeated 32 cycles room temperature, 3 hours. Temperature Cycles (2h) (0.5h) (2h) (0.h) (2h) (0.5h) (2h) (0.5h) (2h) for 0 cycles. Drop Test Height:.5m Procedure: 5 times from each of axis Electrostatic discharge Tested to IEC level 3: a) Contact Discharge: The microphone shall operate normally after 0 discharges to is 6KV DC and the discharge network is 50pF and 330Ω. b) Air Discharge: The microphone shall operate normally after 0 discharges to is 8KV DC and the discharge network is 50pF and 330Ω IP67 Test The unit is placed into the immersion tank, the bottom of the unit is at least m below the surface, the top of the unit is at least 0.5m below the surface. Test time 30min 6

7 We suggest using anti-static welding machine which can control soldering temperature automatically. Soldering temperature should be controlled under 320 and soldering time for each terminal should be ~2 seconds. Microphone should be fixed on the metal block (heat sink), which has high radiation effects, and heat sink shall contact with MIC tightly. Microphone may easily be destroyed by the static electricity. The countermeasure for eliminating the static electricity shall be by grounding the worktable and operator. Product No: EM-405LRNW-40C Shape of heat sink Release Revision: A/208 Page Shape of hole at fixed part 7

8 00PCS Product No: EM-405LRNW-40C 000PCS Release Revision: A/ PCS Page Details Dimension: (length x width x height) Anti-Static Bag: 00mm x 00mm x 5mm Small Packet: 00mm x 00mm x 0mm Middle Box: 205mm x 05mm x 50mm Carton Size: 550mm x 230mm x 235mm Quantity and Weight Small Box: 00 pcs Middle Box: 000 pcs Carton: 20,000 pcs PC: 0.g Net Weight: 2.0kg Gross Weight: 5.0kg 8