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Bourns, Inc.
音频变压器

Bourns, Inc.- 音频变压器

Bourns, Inc. 是一家全球领先的电子元件制造商，由 Marlan 和 Rosemary Bourns 于 1947 年创立，总部位于美国加利福尼亚州河滨市。公司专注于设计、制造各类被动元件、电路保护器件和传感器，服务于汽车、工业、通信、消费电子和医疗等行业。产品组合包括微调电位器、精密电位器、直线运动电位器和旋转刻度盘，广泛应用于工业和消费类设备。在电路保护领域，Bourns 提供晶闸管浪涌保护器、气体放电管、可恢复保险丝、电信保险丝及 ESD 保护器件等。电感元件产品线涵盖变压器、线圈和扼流圈，用于电源管理和信号处理。电阻类产品包括片式电阻、片式电阻阵列及特殊电阻，如电流检测电阻和大功率电阻。此外，公司还生产开关、编码器、面板控制、模块化接触件及网络接口设备，支持电信基础设施。近年新增产品线有微电子模块、功率半导体和定制化集成无源解决方案。Bourns 在电位器和电路保护领域拥有深厚的技术积累和市场份额，是全球被动元件市场的重要参与者。凭借全球化的制造基地和销售网络，Bourns 以高可靠性产品著称，尤其在汽车和工业应用中占据稳固地位。

音频变压器 - 型号列表

共 141 个型号

制造商零件编号	库存	价格	RoHS	产品类别	标准包装数量	工厂包装数量	匝数比 - 初级:次级	引脚样式	包装方式	安装类型	变压器类型	工作温度	插入损耗（最大）	欧盟RoHS	频率	深度	高度	总长度	触点数	系列	射频系列/标准	回波损耗（最小）	阻抗	-3dB带宽	直流电阻（DCR）- 初级	频率响应	击穿电压	初级阻抗（欧姆）	次级直流电阻（DCR）	次级阻抗（欧姆）	其他名称	频率范围	电感量	尺寸/外形	隔离	电感量范围	冷却的封装	产品	初级电压	隔离电压	初始电阻（最小）	宽度	长度	屏蔽	主要材料	端接样式	产品子类型	安装高度（最大）	阻抗 - 不平衡/平衡	封装形式	串扰	共模抑制比、电源抑制比（典型）
2-4-1JEL RF Transformer 1:2 0.2MHz to 350MHz Surface Mount MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1400: ¥12.6657	Lead free / RoHS Compliant	Transformers Audio & Signal	Tape & Reel	700	1:2	J Leads	Tape and Reel	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.2MHz to 350MHz	8.38	6.35	7.62	6	*	-	-	1:4	0.2 to 350	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT75161EL Telecom Transformer 1:2:2 500VAC 3.5Ohm Prim. DCR Surface Mount E4/STM-1 TRANSFORMER Transformers Audio & Signal Telecom Transformer Surface Mount bourns	10	300: ¥19.992	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	300	1:2:2	Gull Wing	Reel	-	-	-	-	-	-	-	-	-	-	*	PT	18@0.005MHz to 1MHz dB	-	-	3.5 Ohm	-	-	-	-	-	-	-	-	-	500 Vac	10(Min) mH	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-4-1DL RF Transformer 1:2 0.2MHz to 350MHz Through Hole RF Transformer 1:2 6Term. PC Pin Thru-Hole MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Lead free / RoHS Compliant	Transformers Audio & Signal	Rail / Tube	68	1:2	PC Pin	Tube	Through Hole	Wide Band RF Transformer	70	3	Compliant	0.2MHz to 350MHz	8.83	6.35	7.62	6	*	-	-	1:4	0.2 to 350	-	-	-	-	-	-	-	-	-	-	-	-	DIP	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-4-1WL RF Transformer 1:2 0.2MHz to 350MHz Surface Mount RF Transformer 1:2 6Term. Gull Wing SMD MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Lead free / RoHS Compliant	Transformers Audio & Signal	Rail / Tube	68	1:2	Gull Wing	Tube	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.2MHz to 350MHz	10.92	6.35	7.62	6	*	-	-	1:4	0.2 to 350	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3-1-1JL RF Transformer 1:1 0.15MHz to 400MHz Surface Mount Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE bourns	10	126: ¥13.4409	RoHS Compliant	Transformers Audio & Signal	Rail / Tube	63	1:1	J Leads	Reel	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.15MHz to 400MHz	8.38	6.35	7.62	6	-	-	-	1:1	0.15 to 400	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3-1-1WL RF Transformer 1:1 0.15MHz to 400MHz Surface Mount RF Transformer 1:1 6Term. Gull Wing SMD MAGNETICS RF TRANSFORMER Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE bourns	10	1360: ¥12.6704	Lead free / RoHS Compliant	Transformers Audio & Signal	Rail / Tube	68	1:1	Gull Wing	Tube	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.15MHz to 400MHz	10.92	6.35	7.62	6	*	-	-	1:1	0.15 to 400	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3-1-6DL RF Transformer 1:1 0.01MHz to 150MHz Through Hole RF Transformer 1:1 6Term. PC Pin Thru-Hole Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE MAGNETICS RF TRANSFORMER bourns	10	1360: ¥12.6704	RoHS Compliant	Transformers Audio & Signal	Rail / Tube	68	1:1	PC Pin	Tube	Through Hole	Wide Band RF Transformer	70	3.0dB	Compliant	0.01MHz to 150MHz	8.83	6.35	7.62	6	-	-	-	1:1	0.01 to 150	-	-	-	-	-	-	-	10kHz ~ 150MHz	-	-	-	-	DIP	-	-	-	-	-	-	-	-	-	-	-	1:1	*	-	-
3-16-1JPEL RF Transformer 4:1 0.3MHz to 120MHz Surface Mount MAGNETICS RF TRANSFORMER Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE bourns	10	1400: ¥12.6657	Lead free / RoHS Compliant	Transformers Audio & Signal	Tape & Reel	700	4:1	J Leads	Tape and Reel	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.3MHz to 120MHz	8.38	6.35	7.62	6	*	-	-	16:1	0.3 to 120	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3-9-1WL RF Transformer 1:3 0.15MHz to 200MHz Surface Mount RF Transformer 1:3 6Term. Gull Wing SMD MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Lead free / RoHS Compliant	Transformers Audio & Signal	Rail / Tube	68	1:3	Gull Wing	Tube	Surface Mount	Wide Band RF Transformer	70	3	Compliant	0.15MHz to 200MHz	10.92	6.35	7.62	6	*	-	-	1:9	0.15 to 200	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-NP-1003L Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR -0.3dB 1.5dB Through Hole Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR 6Term. PC Pin Thru-Hole TRANSF LINE MATCHING Transformers Audio & Signal LINE MATCHING TRANS bourns	10	1: ¥49.0696	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	Bulk	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	1.5	Compliant	0.2kHz to 3.5kHz	17.7	12.6	17.7	6	*	LM-NP-1000	10	-	-	66	-0.3dB	6500VDC	600	66	600	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-NP-1002L Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR -0.3dB 1.5dB Through Hole TRANSFORMER LINE MATCHING Transformers Audio & Signal 1KHz 66ohm 10% line matching trans bourns	1244	1: ¥51.816	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	-	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	-	-	-	-	-	-	-	*	LM-NP-1000	-	-	-	-	-	-	-	-	-	LMNP1002L	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-NP-1004L Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR -0.3dB 1.5dB Through Hole TRANSF LINE MATCHING Transformers Audio & Signal MATCHING TRANS Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR 6Term. PC Pin Thru-Hole bourns	740	1: ¥36.244	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	-	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	1.5	Compliant	0.2kHz to 3.5kHz	17.7	12.6	17.7	6	*	LM-NP-1000	10	-	-	66	-0.3dB	6500VDC	600	66	600	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SM-LP-5002 Audio Transformer 1:1 2000Vrms 136Ohm Prim. DCR 136Ohm Sec. DCR ±0.25dB 2dB Surface Mount Audio Transformer 1:1 2000Vrms 136Ohm Prim. DCR 136Ohm Sec. DCR 6Term. Gull Wing SMD TRANSFORMBER LINE MATCHING SMD Transformers Audio & Signal 600uH 7.36mm SMT Line Matching bourns	49	1: ¥36.582	Lead free / RoHS Compliant	Transformers Audio & Signal	Tape & Reel	53	1:1	Gull Wing	Tube	Surface Mount	Surface Mount Line Matching Transformer	-20 to 85 °C	2@2KHz	Compliant	0.2kHz to 4kHz	9.6	7.36 mm	12.5	6	*	SM-LP-5002	24@0.2kHz to 4kHz	-	-	136(Typ)	±0.25dB	2000Vrms	600 Ohms	136 Ohms	-	SMLP5002	200 Hz to 4 kHz	7 mH	12.5 mm L x 9.6 mm W x 7.36 mm H	-	-	-	Line Matching Transformers	500 V	1.5 kV	136 Ohms	9.6 mm	12.5 mm	Unshielded	136 Ohms	SMD/SMT	Transformers	-	-	-	-	-
PT61017EL Telecom Transformer 1CT:1CT 1500Vrms 0.9Ohm Prim. DCR 0.9Ohm Sec. DCR -1.1dB Surface Mount Transformers Audio & Signal LAN 10/100 Tin Injection Molding bourns	10	1: ¥10.812	RoHS Compliant	-	Tape & Reel	-	1CT:1CT	Gull Wing	Reel	-	-	-	-1.1@0.3MHz to 100MHz dB	-	-	-	-	-	-	PT61017	PT	-12@60MHz to 80MHz dB	-	-	-	-	-	-	-	-	-	-	-	-	1500 Vrms	0.35(Min) mH	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-35@60MHz to 100MHz dB	-30@80MHz to 100MHz dB
3-2-1JL MAGNETICS- RF TRANSFORMER Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE bourns	10	126: ¥13.4409	RoHS Compliant	Transformers Audio & Signal	-	63	-	-	Reel	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-LP-1001L Audio Transformer 1:1 6500VDC 90Ohm Prim. DCR 90Ohm Sec. DCR -0.5dB 2dB Through Hole TRANSF LINE MATCHING Transformers Audio & Signal LINE MATCHING TRANS bourns	708	1: ¥22.508	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	Bulk	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	-	-	-	-	-	-	-	-	LM-LP-1000	-	-	-	-	-	-	-	-	-	LMLP1001L	-	2.8H	17.70mm L x 17.70mm W	-	-	-	-	-	-	-	-	-	-	-	-	-	12.80mm	-	-	-	-
LM-LP-1002L Audio Transformer 1:1 6500VDC 90Ohm Prim. DCR 90Ohm Sec. DCR -0.5dB 2dB Through Hole Audio Transformer 1:1 6500VDC 90Ohm Prim. DCR 90Ohm Sec. DCR 5Term. PC Pin Thru-Hole TRANSF LINE MATCHING Transformers Audio & Signal LINE MATCHING TRANS bourns	10	1008: ¥26.8369	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	Bulk	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	2	Compliant	0.2kHz to 3.5kHz	17.7	12.6	17.7	5	*	LM-LP-1000	8	-	-	90	-0.5dB	6500VDC	600	90	600	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-LP-1005L Audio Transformer 1:1 6500VDC 90Ohm Prim. DCR 90Ohm Sec. DCR -0.5dB 2dB Through Hole Audio Transformer 1:1 6500VDC 90Ohm Prim. DCR 90Ohm Sec. DCR 8Term. PC Pin Thru-Hole TRANSFORMER LINE MATCHING Transformers Audio & Signal LINE MATCHING TRANS bourns	935	1: ¥51.816	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	Bulk	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	2	Compliant	0.2kHz to 3.5kHz	17.7	12.6	17.7	8	*	LM-LP-1000	8	-	-	90	-0.5dB	6500VDC	600	90	600	LMLP1005L	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LM-NP-1005L Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR -0.3dB 1.5dB Through Hole Audio Transformer 1:1 6500VDC 66Ohm Prim. DCR 66Ohm Sec. DCR 8Term. PC Pin Thru-Hole TRANSF LINE MATCHING Transformers Audio & Signal 1KHz 90ohm 10% bourns	10	1008: ¥26.8369	Lead free / RoHS Compliant	Transformers Audio & Signal	Bulk	28	1:1	PC Pin	Bulk	Through Hole	Line Matching Audio Transformer	-10 to 60 °C	1.5	Compliant	0.2kHz to 3.5kHz	17.7	12.6	17.7	8	*	LM-NP-1000	10	-	-	66	-0.3dB	6500VDC	600	66	600	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SM-LP-5002E Audio Transformer 1:1 2000Vrms 136Ohm Prim. DCR 136Ohm Sec. DCR ±0.25dB 2dB Surface Mount Audio Transformer 1:1 2000Vrms 136Ohm Prim. DCR 136Ohm Sec. DCR 6Term. Gull Wing SMD TRANSF LINE MATCHING SMD Transformers Audio & Signal 600uH 7.36mm SMT Line Matching bourns	61	1: ¥25.9875	Lead free / RoHS Compliant	Transformers Audio & Signal	Tape & Reel	400	1:1	Gull Wing	Tape and Reel	Surface Mount	Surface Mount Line Matching Transformer	-20 to 85 °C	2@2KHz	Compliant	0.2kHz to 4kHz	9.6	7.36 mm	12.5	6	-	SM-LP-5002	24@0.2kHz to 4kHz	-	-	136(Typ)	±0.25dB	2000Vrms	600 Ohms	136 Ohms	-	SM-LP-5002ECT	200 Hz to 4 kHz	3.8H	12.50mm L x 9.60mm W	-	-	-	Line Matching Transformers	500 V	1.5 kV	136 Ohms	9.6 mm	12.5 mm	Unshielded	136 Ohms	SMD/SMT	Transformers	7.36mm	-	-	-	-

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Bourns, Inc.- 音频变压器

音频变压器 - 型号列表

工厂包装数量

频率

插入损耗（最大）

匝数比 - 初级:次级

深度

-3dB带宽

回波损耗（最小）

其他名称

阻抗

包装方式

直流电阻（DCR）- 初级

射频系列/标准

标准包装数量

高度

引脚样式

总长度

变压器类型

触点数

工作温度

频率响应

次级直流电阻（DCR）

电感量

尺寸/外形

RoHS

安装类型

系列

隔离

电感量范围

频率范围

击穿电压

初级阻抗（欧姆）

安装高度（最大）