PMC1206-151 Equivalent & Substitute Parts

Part Overview

The PMC1206-151 is a 150 Ohm ferrite bead in 1206 (3216 Metric) surface mount package manufactured by Bourns Inc. This component is designed for single-line EMI suppression applications with a maximum current rating of 200mA and DC resistance of 500mOhm. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Impedance @ 100 MHz	150 Ohms
Current Rating (Max)	200mA
DC Resistance (Max)	500mOhm
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C
Number of Lines	1
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the PMC1206-151 is determined by the following critical parameters:

Impedance @ 100 MHz: Must be 150 Ohms (exact match) or 120 Ohms (acceptable tolerance for EMI suppression applications)
Package / Case: Must be 1206 (3216 Metric) for PCB footprint compatibility
Mounting Type: Must be Surface Mount
Number of Lines: Must be 1 (single-line configuration)
Operating Temperature Range: Must support -55°C ~ 125°C minimum
Current Rating: Must meet or exceed application requirements

The substitute parts listed below satisfy these core electrical and mechanical parameters. Variations in DC resistance and maximum current rating are acceptable provided they do not compromise circuit performance or thermal characteristics.

Parameter Comparison

Parameter	PMC1206-151	MG3261-151Y	ILB1206ER151V	ILB1206ER121V
Manufacturer	Bourns Inc.	Bourns Inc.	Vishay Dale	Vishay Dale
Impedance @ 100 MHz	150 Ohms	150 Ohms	150 Ohms	120 Ohms
Current Rating (Max)	200mA	300mA	300mA	400mA
DC Resistance (Max)	500mOhm	300mOhm	200mOhm	200mOhm
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Number of Lines	1	1	1	1
Product Status	Obsolete	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MG3261-151Y (Bourns Inc.): This part provides an exact impedance match at 150 Ohms with improved current handling (300mA vs. 200mA) and reduced DC resistance (300mOhm vs. 500mOhm). However, it remains obsolete. ROHS3 compliance makes it suitable for applications requiring environmental standards compliance.

ILB1206ER151V (Vishay Dale): This is the preferred substitute for new designs. It matches the 150 Ohm impedance specification, offers superior current rating (300mA), lower DC resistance (200mOhm), and maintains active product status. ROHS3 compliance and Tape & Reel packaging support production scalability.

ILB1206ER121V (Vishay Dale): This part operates at 120 Ohms impedance, representing a 20 Ohm reduction from the original specification. It is suitable only for applications where impedance tolerance permits this deviation. It provides the highest current rating (400mA) and lowest DC resistance (200mOhm) among all options. Active product status and ROHS3 compliance support long-term availability.

Frequently Asked Questions (FAQ)

Q: Can ILB1206ER121V be used as a direct replacement for PMC1206-151?

A: ILB1206ER121V operates at 120 Ohms impedance versus the original 150 Ohms. This 20 Ohm difference may affect EMI suppression performance depending on circuit requirements and frequency response characteristics. Use only if circuit design permits impedance tolerance at this level.

Q: What is the advantage of MG3261-151Y over the original PMC1206-151?

A: MG3261-151Y maintains the exact 150 Ohm impedance while providing higher current capacity (300mA vs. 200mA) and lower DC resistance (300mOhm vs. 500mOhm). However, both parts are obsolete; ILB1206ER151V is recommended for new designs.

Q: Why is ILB1206ER151V recommended for new designs?

A: ILB1206ER151V is the only active product among the substitutes, ensuring long-term availability and supply chain stability. It matches the 150 Ohm impedance specification, exceeds current and DC resistance performance, and carries ROHS3 compliance certification.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the 1206 (3216 Metric) package with identical land pattern dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm). Height variations (1.10mm to 1.30mm maximum) are within standard PCB assembly tolerances.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging is suitable for small-quantity orders and manual assembly. Tape & Reel (TR) packaging supports automated pick-and-place assembly and is standard for production volumes. ILB1206ER151V and ILB1206ER121V are supplied in Tape & Reel format.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance relates to material composition and environmental standards, not electrical performance. ROHS3-compliant substitutes (MG3261-151Y, ILB1206ER151V, ILB1206ER121V) meet the same electrical specifications as the original PMC1206-151 while adhering to environmental regulations.

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