Projections Unlimited, Inc
PUI | Global Corporate HQ
15311 Barranca Parkway
Irvine , CA , 92618
United States
Phone:(714) 544-2700
Email: sales@gopui.com
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PUI Audio??s all-new HD Series microphones use premium-grade FETs and diaphragms for high sensitivity and superior signal-to-noise ratio. Each microphone features GSM buzz-blocking capacitors. Upgrade the ECM microphone that you use today with a PUI Audio HD Series microphone.

The 5.8 mm diameter ROM-2235L-HD-R is designed for extreme fidelity in a compact housing with true 20 Hz to 20 kHz performance.
Unit of Measure

Specifications

Available

 N/A {0}

Manufacturer Stock

 N/A {0}

Brands

 N/A PUI Audio™

Manufacturer

 N/A PUI Audio� Inc.

Sensitivity

 N/A -35 dB

Sensitivity Tolerance (±)

 N/A 3 dB

Testing Condition for Sensitivity

 N/A 1 kHz at 50 cm
0 dB=1V/Pa

Direct Current (DC) Rated Voltage

 N/A 3 V

Output Impedance at 1 Kilohertz (kHz) Frequency

 N/A 2.2 kΩ

Current Consumption

 N/A 500 µA

Note for Current Consumption

 N/A 3VS with 2.2 kΩ RL

Signal to Noise Ratio

 N/A 68 dB

Note for Signal to Noise Ratio

 N/A 1 kHz, 94 dB input, A-Weighted

Decreasing Voltage

 N/A -3 dB

Note for Decreasing Voltage

 N/A 3VS to 2VS

Frequency Range

 N/A 20 ~ 20000 Hz

Direct Current (DC) Operating Voltage Range

 N/A 1 ~ 10 V

Maximum Sound Pressure Level (SPL) Input (Total harmonic distortion (THD) < 3 Percent (%))

 N/A 110 dB

Directivity

 N/A Omni-Directional

Operating Temperature

 N/A -20 ~ +70 ºC

Storage Temperature

 N/A -40 ~ +85 ºC

Weight

 N/A < 0.5 g

Diameter

 N/A 5.8 mm

Height

 N/A 2.7 mm

Tolerance (±)

 N/A 0.5 mm

Angle Tolerance (±)

 N/A 3 º

Industry Standards

 N/A Restriction of Hazardous Substances (RoHS) 2011/65/EU

Reliability Testing

High Temperature Test

 N/A 200 hours at +70 ºC ± 3 ºC followed by two hours in normal room temperature

Low Temperature Test

 N/A 200 hours at -25 ºC ± 3 ºC followed by two hours in normal room temperature

Humidity Test

 N/A 200 hours at +40 ºC± 3 ºC with relative humidity at 90 % to 95 % followed by 2 hours in normal room temperature

Temperature Cycle Test

 N/A 30 minutes at -25 ºC, 10 minutes at 20 ºC, 30 minutes at +70 ºC, 10 minutes at 20 ºC for five cycles, followed by 2 hours in normal room temperature

Vibration Test

 N/A 10-55 Hz for 1 minute with 1.52 mm distance, followed by a two-hour 3 axis test in packaging

Drop Test

 N/A Drop microphones in packaging onto concrete floor from 1 meter height in each of 3 axis

Electrostatic Discharge (ESD) Test

 N/A
  1. Contact discharge - Discharge 6000 VDC from capacitor into microphone output through 330 Ω resistor ten times.
  2. Air discharge - Discharge 8000 VDC into sound hole of the microphone ten times.

Note Electrostatic Discharge (ESD) Test

 N/A According to IEC 6100

Note for Reliability Testing

 N/A After each test, the speaker's SPL shall be ±3 dB of the original SPL

Features

Features

 N/A True 20 Hz to 20 kHz performance

Note

Note

 N/A Specifications subject to change or withdrawal without notice.