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一、规格概述 Specification |
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口径 Size |
31×70 ± 0.5 mm |
全 高 Overall height |
17± 1 mm |
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环 保 RoHS |
ROHS |
重 量 Total weight |
15.5± 5 %g |
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二、特 性characteristics |
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No. |
项目 ITEMS |
规格SPECIFICATION |
测试条件TESTINGCONDITIONS |
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1 |
额定阻抗 Rated impedance |
4 ± 15 % Ω |
GB/T9396 Without a baffle At 1000Hz. |
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2 |
额定共振频率（fo） Rated resonance frequency |
450±20 % Hz |
WITHOUT BAFFLE |
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3 |
额定特性灵敏度 Rated sound pressure level |
80 ±3dB |
1M/1W |
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4 |
额定频率范围 Rated frequency range |
fo ～ 20 kHz |
Refer to GB/T9396 SPL -10dB or less |
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5 |
额定噪声功率 Rated noise power |
3W |
Pink noice 170Hz~ 15K Hz |
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6 |
额定长期最大功率 Rated long term maximum power |
5 W |
GB/T9396-1996 |
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7 |
纯音检听 Buzz and Rattles check |
Fo ～ 20K Hz, Must be normal |
正弦信号 SINE SINGLE 4．0V， fo ～20 kHz |
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8 |
总谐波失真系数 Rated total harmonic distortion |
≤5% MAX |
GB/T9396 |
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9 |
极 性 Polarity |
If the cone paper of speaker is obverse, terminal is in the lower, Positive in the right side. |
GB/T9396-1996 |
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10 |
绝缘电阻 Insulation resistance
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≥ 1 MΩ |
GB/T9397 100±10%V DC for 1 minute,Between the terminal and the exposed metallic part. |
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11 |
高温贮存试验 High-Temperature preservation test
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After test Accord seventh |
GB/T9396 Pink noise 3W, 16H |
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12 |
低温贮存试验 Low-Temperature Preservation test |
After test Accord seventh |
GB/T9397 -10±3 OC operatingfor 1h then depositing -25±3 OC for 2h, then resuming for 4h at normal atmosphere conditions. |
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13 |
稳态湿热试验 Static Humidity/temperature test
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After test Accord seventh |
GB/T9397 At 40±2 OC and 93%R.H depositing for 96h, then resuming for 24h at normal atmosphere conditions. |
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14 |
滑落冲击试验 Sliding shock test |
After test Accord seventh |
GB/T9397 The load speaker shall be dropped 1times from in length of 1M in a angle of 75 inclination. |
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