SN14-700 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SN14-700 is a 2-line common mode choke manufactured by KEMET, designed for power line filtering applications. This through-hole component delivers 450 µH inductance at 100 kHz with a maximum DC resistance of 0.1200 OHM and supports 5.0A current rating. The part operates across the temperature range of -25°C to 105°C and maintains Active product status with ROHS3 compliance and REACH unaffected designation.

Substitute parts become necessary when addressing specific application requirements including inductance value optimization, current capacity adjustments, or DC resistance performance criteria. The SN series family provides multiple inductance and current rating combinations to accommodate diverse circuit design specifications.

Key Parameters

Parameter	SN14-700 Specification
Manufacturer Part Number	SN14-700
Manufacturer	KEMET
Series	SN
Filter Type	Power Line
Number of Lines	2
Inductance @ 100 kHz	450 µH
Current Rating (Max)	5.0A
DC Resistance (Max)	0.1200 OHM
Operating Temperature Range	-25°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Vertical, No Base, 2 PC Pin
Product Status	Active
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Packaging	Tray
Inventory Status	1056 Pcs New Original In Stock

Substitute Part Grouping Explanation

Substitution eligibility for the SN14-700 is determined by three critical parameters: inductance value at 100 kHz, maximum current rating, and DC resistance specification. All substitute parts maintain identical mechanical compatibility through the through-hole mounting configuration with vertical orientation and 2 PC pin package case. All candidates retain the 2-line common mode choke topology for power line filtering applications.

The substitute parts are grouped by inductance performance levels:

Lower Inductance Range (10–40 µH): SN16P-130, SN20P-240, and SN16P-400J provide reduced inductance values with corresponding adjustments to current capacity and DC resistance. These parts serve applications requiring lower filtering impedance.

Mid-Range Inductance (80–120 µH): SN14P-300J and SN14-400 occupy the intermediate inductance spectrum, offering balanced performance between the SN14-700 and lower-value alternatives.

Higher Current Capacity Variants: SN12HP-2201, SN14P-300J, and SN20P-240 deliver elevated current ratings (8.0A to 20.0A) with corresponding inductance and resistance adjustments.

Minimal Inductance Options (2.5–20 µH): SN3-100 and SN3-300 represent the lowest inductance values within the substitute family, applicable to high-frequency or minimal filtering scenarios.

All substitute parts maintain Active product status, ROHS3 compliance, and REACH unaffected designation, ensuring regulatory consistency with the primary part.

Parameter Comparison

Part Number	Inductance @ 100 kHz	Current Rating (Max)	DC Resistance (Max)	Operating Temperature	Mounting Type	Package / Case	Product Status	RoHS Status	Inventory (Pcs)
SN14-700	450 µH	5.0A	0.1200 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1056
SN12-300	36 µH	5.0A	0.0200 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	888
SN12-800	250 µH	5.0A	0.0600 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1090
SN12HP-2201	20 µH	10.0A	0.0130 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1155
SN14-400	120 µH	5.0A	0.0450 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	898
SN14P-300J	80 µH	15.0A	0.0150 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1071
SN16P-130	10 µH	10.0A	0.0050 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1027
SN16P-400J	108 µH	8.0A	0.0270 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	703
SN20P-240	40 µH	20.0A	0.0100 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	994
SN3-100	2.5 µH	3.0A	0.0250 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1136
SN3-300	20 µH	0.5A	0.1500 OHM	-25°C ~ 105°C	Through Hole	Vertical, No Base, 2 PC Pin	Active	ROHS3 Compliant	1332

Engineering Selection Recommendations

Component selection from the SN series substitute family must align with circuit-specific inductance requirements and current handling capacity. The SN14-700 operates at the highest inductance level within the available substitute group, delivering maximum filtering impedance at 450 µH.

For applications requiring inductance reduction while maintaining 5.0A current capacity: SN12-800 (250 µH) and SN14-400 (120 µH) provide direct current-matched alternatives with proportionally reduced DC resistance values.

For applications requiring elevated current capacity: SN14P-300J (80 µH at 15.0A) and SN20P-240 (40 µH at 20.0A) accommodate higher current demands with corresponding inductance and resistance adjustments. SN12HP-2201 delivers 10.0A capacity at 20 µH inductance with minimal DC resistance (0.0130 OHM).

For minimal inductance filtering: SN16P-130 (10 µH at 10.0A) and SN3-100 (2.5 µH at 3.0A) serve high-frequency or low-impedance applications.

All substitute parts maintain identical regulatory compliance: Active product status, ROHS3 compliance, and REACH unaffected designation. All parts utilize through-hole mounting with vertical orientation and 2 PC pin configuration, ensuring mechanical interchangeability within the PCB footprint.

Packaging format varies between Tray and Bulk options. Verify packaging requirements for procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: What determines whether a part can substitute for the SN14-700?

A: Substitution eligibility is determined by three parameters: inductance value at 100 kHz, maximum current rating, and DC resistance specification. All substitute parts must maintain the 2-line common mode choke topology, through-hole mounting configuration, and vertical orientation with 2 PC pin package case. All candidates must retain Active product status and ROHS3 compliance.

Q: Can I use SN12-800 as a direct replacement for SN14-700?

A: SN12-800 is mechanically compatible and maintains identical current rating (5.0A) and operating temperature range. However, inductance differs significantly: SN12-800 delivers 250 µH compared to SN14-700's 450 µH. DC resistance is lower (0.0600 OHM vs. 0.1200 OHM). Selection depends on whether your circuit requires the specific 450 µH inductance value or can tolerate the reduced filtering impedance of 250 µH.

Q: What is the difference between Tray and Bulk packaging options?

A: Packaging format affects procurement and assembly handling. Tray packaging is standard for automated assembly processes. Bulk packaging accommodates alternative handling workflows. Both formats contain identical components with identical electrical and mechanical specifications. Verify your assembly process requirements before selecting packaging format.

Q: Can I use SN20P-240 if my circuit requires higher current capacity?

A: SN20P-240 supports 20.0A current rating, significantly exceeding the SN14-700's 5.0A capacity. However, inductance is substantially lower at 40 µH versus 450 µH, and DC resistance is reduced to 0.0100 OHM. This part is suitable only if your circuit can function with the reduced inductance value and benefits from the elevated current capacity and lower resistance characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected designation, ensuring regulatory consistency with the SN14-700 across all jurisdictions requiring these certifications.

Q: What is the inductance range available within the SN series substitute family?

A: The SN series substitute family spans inductance values from 2.5 µH (SN3-100) to 450 µH (SN14-700). Intermediate values include 10 µH, 20 µH, 36 µH, 40 µH, 80 µH, 108 µH, 120 µH, and 250 µH. Current ratings range from 0.5A to 20.0A, with corresponding DC resistance adjustments across the family.

Q: Does operating temperature range differ among substitute parts?

A: No. All substitute parts operate across the identical temperature range of -25°C to 105°C, ensuring thermal performance consistency across the SN series family.

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