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Bourns, Inc.
Pulse Transformers

Bourns, Inc.- Pulse Transformers

Bourns, Inc. is a global manufacturer of electronic components, founded in 1947 by Marlan and Rosemary Bourns, with its headquarters in Riverside, California, USA. The company specializes in the design and production of a wide range of passive components, circuit protection devices, and sensors for various industries. Bourns' product portfolio includes trimming potentiometers, precision potentiometers, linear motion potentiometers, and rotary dials, which are widely used in industrial and consumer applications. In the area of circuit protection, Bourns offers thyristor surge protectors, gas discharge tubes, resettable fuses, telecom fuses, and ESD protection products. The company also provides an extensive lineup of inductive components such as transformers, coils, and chokes for power and signal applications. Its resistive product range features chip resistors, chip resistor arrays, and specialty resistors, including current sense and high-power types. Additionally, Bourns manufactures switches, encoders, panel controls, modular contacts, and network interface devices for telecommunications. More recent expansions include microelectronic modules, power semiconductors, and custom integrated passive solutions. Bourns serves key markets like automotive, industrial automation, telecommunications, consumer electronics, and medical equipment. With manufacturing facilities and sales offices around the world, Bourns is recognized as a trusted supplier of high-reliability components, holding a strong position in the niche potentiometer and circuit protection segments.

Pulse Transformers - 型号列表

230 parts in total

Mfr Part #	Quantity Available	Price	Standard Package	Turns Ratio - Primary:Secondary	Lead Style	Packaging	Mounting Type	Transformer Type	EU RoHS	Depth	Height	Length - Overall	Number of Contacts	Operating Temperature	Isolation	RF Family/Standard	Inductance Range	Insertion Loss (Max)	DC Resistance (DCR) - Primary	DC Resistance (DCR) - Secondary	Package Cooled	Product Category	RoHS	Inductance - Connected In Series	Crosstalk	Return Loss (Min)	Factory Pack Quantity	Series	Capacitance Ratio Condition	Frequency	Impedance	-3db Bandwidth	CMRR, PSRR (Typ)	Minimum Load Required	メーカ	Number of Units	End - Size	Frequency Range	Termination Style	Other Names	Distortion Rating	Impedance - Unbalanced/Balanced	Package / Case	Product	Rad Hardened	Inductance	Return Loss	Insertion Loss	Voltage - Isolation	Width	Length	Size / Dimension	Number of Positions	Product Type	Operating Temperature - Junction
PT23104L Telecom Transformer 1:2.5 2000Vrms 2.5Ohm Prim. DCR 5.5Ohm Sec. DCR Through Hole Telecom Transformer 1:2.5 2.5Ohm Prim. DCR 5.5Ohm Sec. DCR 6Term. PC Pin Thru-Hole bourns	10	1008: ¥25.685	Bulk	1:2.5	PC Pin	Tube	Through Hole	ISDN Transformer	Compliant	14	10.2	14	6	70	2000 Vrms	PT	28(Min) mH	-	2.5(Typ) Ohm	5.5(Typ)	DIP	-	-	12	-	-	-	-	125	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT31407L Telecom Transformer 1.2:1 1500Vrms 1.26Ohm Prim. DCR 1.2Ohm Sec. DCR 0.5dB Through Hole Telecom Transformer 1.2:1 1.26Ohm Prim. DCR 1.2Ohm Sec. DCR 10Term. PC Pin Thru-Hole bourns	10	1320: ¥5.1422	Bulk	1.2:1	PC Pin	Tray	Through Hole	ADSL Transformer	Compliant	14	14	14.5	10	85	1500 Vrms	PT	1.8(Min) mH	0.5(Typ)@0.1MHz dB	1.26 Ohm	1.2	DIP	-	-	10(Typ)	-	-	-	-	-	-	-	-	-	50(Typ) dB	-	-	-	-	-	-	-60@300KHz	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT66001L Telecom Transformer 4:1/1 4:1/1 1:1:1:1 1500Vrms 5.6Ohm Prim. DCR 2.7Ohm/1.1Ohm Sec. DCR Through Hole Telecom Transformer 4:1/1 4:1/1 1:1:1:1 5.6Ohm Prim. DCR 2.7Ohm/1.1Ohm Sec. DCR 18Term. PC Pin Thru-Hole bourns	10	1080: ¥18.5456	Bulk	4:1/1 4:1/1 1:1:1:1	PC Pin	Tube	Through Hole	ISDN Transformer	Compliant	10.5	15.1	29.1	18	70	1500 Vrms	PT	22(Min) mH	-	5.6 Ohm	2.7/1.1	DIP	-	-	-	-	-	-	-	120	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT73434L Telecom Transformer 1:25 4000VAC 3Ohm Prim. DCR 15Ohm Sec. DCR Through Hole Telecom Transformer 1:25 3Ohm Prim. DCR 15Ohm Sec. DCR 6Term. PC Pin Thru-Hole bourns	10	76: ¥28.5124	Bulk	1:25	PC Pin	Tube	Through Hole	ISDN S-Interface Transformer	Compliant	14	13.2	14.2	6	70	4000 Vac	PT	28(Min) mH	-	3(Typ) Ohm	15(Typ)	DIP	-	-	12	-	-	-	-	60	-	-	-	-	60 dB	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SM51523EL Telecom Transformer 1CT:1/1CT:1CT 1500VAC -1.1dB Surface Mount Telecom Transformer 1CT:1/1CT:1CT 24Term. Gull Wing SMD bourns	10	2400: ¥18.904	Tape & Reel	1CT:1/1CT:1CT	Gull Wing	Tape and Reel	Surface Mount	10/100Base-TX VOIP Modules Transf...	Compliant	19	6	13.7	24	85	1500 Vac	SM	0.35(Min) mH	-1.1@1MHz to 100MHz dB	-	-	-	-	-	-	-33@100MHz dB	-12@60MHz to 80MHz dB	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SD120-28-RC POWER TRANSFORMER,HAZMAT POWER TRANSFORMER bourns / j.w. miller	10	200: ¥46.1394	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SS011-36-RC POWER TRANSFORMER,HAZMAT POWER TRANSFORMER bourns / j.w. miller	10	200: ¥23.2451	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3-4-6WL RF Transformer 1:2 0.02MHz to 200MHz Surface Mount RF Transformer 1:2 6Term. Gull Wing SMD MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Rail / Tube	1:2	Gull Wing	Tube	Surface Mount	Wide Band RF Transformer	Compliant	10.92	6.35	7.62	6	70	-	-	-	3	-	-	-	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-	-	68	*	-	0.02MHz to 200MHz	1:4	0.02 to 200	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-1-6DL RF Transformer 1:1 0.003MHz to 300MHz Through Hole RF Transformer 1:1 6Term. PC Pin Thru-Hole MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Rail / Tube	1:1	PC Pin	Tube	Through Hole	Wide Band RF Transformer	Compliant	8.83	6.35	7.62	6	70	-	-	-	3	-	-	DIP	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-	-	68	*	-	0.003MHz to 300MHz	1:1	0.003 to 300	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-2-1JEL RF Transformer 1:1.41 0.07MHz to 200MHz Surface Mount MAGNETICS RF TRANSFORMER Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1400: ¥12.6657	Tape & Reel	1:1.41	J Leads	Tape and Reel	Surface Mount	Wide Band RF Transformer	Compliant	8.38	6.35	7.62	6	70	-	-	-	3	-	-	-	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-	-	700	*	-	0.07MHz to 200MHz	1:2	0.07 to 200	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-5-1JEL RF Transformer 1:2.23 0.3MHz to 300MHz Surface Mount MAGNETICS RF TRANSFORMER Transformers Audio & Signal WIDEBAND RF TRANS LOW PROFILE bourns	10	1400: ¥12.6657	Tape & Reel	1:2.23	-	Reel	Surface Mount	Wide Band RF Transformer	-	-	-	-	-	-	-	-	-	-	-	-	-	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-	-	700	*	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT543-1L Telecom Transformer 1:1:1:1 1500Vrms 0.8Ohm Prim. DCR 0.8Ohm Sec. DCR 3dB Through Hole Telecom Transformer 1:1:1:1 0.8Ohm Prim. DCR 0.8Ohm Sec. DCR 8Term. PC Pin Thru-Hole bourns	10	105: ¥8.1865	Bulk	1:1:1:1	PC Pin	Tube	Through Hole	ADSL and RADSL Transformer	Compliant	26.67	12.7	24.13	8	85	1500 Vrms	PT	0.41(Typ) mH	3 dB	0.8	0.8	DIP	-	-	10	-	-	-	-	-	-	-	-	-	62(Typ) dB	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT66004L Telecom Transformer 1:2CT 1500Vrms 2.65Ohm Prim. DCR 5Ohm Sec. DCR Through Hole 変圧器オーディオとシグナル MAGNETICS - TELECOM TRANSFORMER Telecom Transformer 1:2CT 2.65Ohm Prim. DCR 5Ohm Sec. DCR 6Term. PC Pin Thru-Hole bourns	10	1750: ¥26.996	Bulk	1:2CT	PC Pin	Tube	Through Hole	ISDN S-Interface Transformer	Compliant	14.2	10.16	14.2	6	70	1500 Vrms	PT	20(Min) mH	-	2.65 Ohm	5	-	-	-	5	-	-	-	-	130	-	-	-	-	-	Bourns	15	SMD/SMT	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SM535-1L Telecom Transformer 1:1.95 1500Vrms 2Ohm Prim. DCR 2Ohm Sec. DCR Surface Mount 変圧器オーディオとシグナル MAGNETICS - ADSL TRANSFORMER bourns	10	200: ¥8.2484	Tape & Reel	1:1.95	Gull Wing	-	Surface Mount	ADSL Transformer	Compliant	17.65	12.32	13.46	10	85	1500 Vrms	SM	1.5(Typ) mH	-	2	2	-	-	-	12	-	-	-	-	35	-	-	-	-	-	Bourns	200	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2-1-1DL RF Transformer 1:1 0.05MHz to 200MHz Through Hole RF Transformer 1:1 6Term. PC Pin Thru-Hole MAGNETICS RF TRANSFORMER THT Transformers Audio & Signal RF TRANSFORMER WIDEBAND bourns	10	1360: ¥12.6704	Rail / Tube	1:1	PC Pin	Tube	Through Hole	Wide Band RF Transformer	Compliant	8.83	6.35	7.62	6	70	-	-	-	3.0dB	-	-	DIP	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-	-	68	-	-	0.05MHz to 200MHz	1:1	0.05 to 200	-	-	-	-	-	50kHz ~ 200MHz	Through Hole	-	-	1:1	6-EDIP (0.330", 8.38mm)	-	-	-	-	-	-	-	-	-	-	-	-
SM51108EL Telecom Transformer 1CT:1CT 1500VAC -1.2dB Surface Mount Telecom Transformer 1CT:1CT 16Term. Gull Wing SMD TRANSFORMER POE LAN Transformers Audio & Signal 10/100 BASE Tx VoIP POE MODULE bourns	10	2800: ¥6.7497	Tape & Reel	1CT:1CT	Gull Wing	Tape and Reel	Surface Mount	10/100Base-TX VOIP Modules Transf...	Compliant	9.3 mm	5.45 mm	12 mm	16	- 40 C to + 85 C	1500 Vac	SM	0.35(Min) mH	-1.2@1MHz to 100MHz dB	-	-	-	Transformers Audio & Signal	Lead free / RoHS Compliant	-	-35@100MHz dB	-12@60MHz to 80MHz dB	700	*	-	-	-	-	-33@100MHz dB	-	-	-	-	1 MHz to 100 MHz	SMD/SMT	SM51108EL-ND	-	-	-	10/100 Base-TX	No	350 uH	-12 dB	-1.2 dB	1.5 kV	7 mm	12 mm	12 mm L x 7 mm W x 5.45 mm H	16	Modules	85C
PT61002L Telecom Transformer 1:1 1500Vrms -1dB Surface Mount 固定インダクタ MAGNETICS LAN TRANSFORMER bourns	10	1440: ¥39.304	Bulk	1:1	Gull Wing	Tube	Surface Mount	LAN Transformer	Compliant	16	5.8	28	40	70	1500 Vrms	PT	0.35(Min) mH	-1@1MHz to 125MHz dB	-	-	-	-	-	-	-30@60MHz to 100MHz dB	-12@60MHz to 100MHz dB	-	-	-	-	-	-	-	-	Bourns	18	SMD/SMT	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
SM51589EL Telecom Transformer 1CT:1CT 5000VAC -1dB Surface Mount XFRMR SURFACE MOUNT Transformers Audio & Signal BASE T TRANSFORMER LAN 10/100/1000 bourns	201	1: ¥42.296	Tape & Reel	1CT:1CT	Gull Wing	Reel	-	-	-	-	-	-	-	-	5000 Vac	SM	0.35(Min) mH	-1@1MHz to 100MHz dB	-	-	-	Transformers Audio & Signal	Lead free / RoHS Compliant	-	35@80MHz dB	10@100MHz dB	-	*	-	-	-	-	33@80MHz dB	-	-	-	-	-	-	SM51589ELTR	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT61003EL Telecom Transformer 1:1 1500Vrms -1dB Surface Mount Telecom Transformer 1:1 16Term. Gull Wing SMD bourns	10	1200: ¥10.1728	Tape & Reel	1:1	Gull Wing	Tape and Reel	Surface Mount	LAN Transformer	Compliant	12.7	5.8	25.4	16	85	1500 Vrms	PT	0.35(Min) mH	-1@1MHz to 125MHz dB	-	-	-	-	-	-	-30@60MHz to 100MHz dB	-12@60MHz to 100MHz dB	-	-	-	-	-	-	-35@60MHz to 100MHz dB	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT61004EL Telecom Transformer 1:1 1500Vrms -1dB Surface Mount bourns	-		Tape & Reel	1:1	Gull Wing	-	-	-	-	-	-	-	-	-	1500 Vrms	PT	-	-1@1MHz to 10MHz dB	-	-	-	-	-	-	-35@5MHz to 10MHz dB	-15@5MHz to 10MHz dB	-	-	-	-	-	-	-45@100MHz dB	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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Bourns, Inc.- Pulse Transformers

Pulse Transformers - 型号列表

Turns Ratio - Primary:Secondary

Depth

Height

Length - Overall

Insertion Loss (Max)

Inductance Range

DC Resistance (DCR) - Primary

DC Resistance (DCR) - Secondary

Transformer Type

Number of Contacts

Isolation

Capacitance Ratio Condition

Crosstalk

Inductance - Connected In Series

Packaging

Return Loss (Min)

Frequency

-3db Bandwidth

CMRR, PSRR (Typ)

Standard Package

Lead Style

Operating Temperature

Minimum Load Required

Impedance

Number of Units

Mounting Type

RF Family/Standard

Factory Pack Quantity

Frequency Range

Termination Style

Other Names