KEMET SN14P-770H Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SN14P-770H is a 2-line common mode choke designed for power line filtering applications. This through-hole mounted component features 550 µH inductance at 100 kHz with 0.0850 Ohm DC resistance and supports 3.0A maximum current. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN14P-770H
Manufacturer	KEMET
Series	SN
Filter Type	Power Line
Number of Lines	2
Inductance @ 100 kHz	550 µH
DC Resistance (DCR)	0.0850 Ohm
Current Rating (Max)	3.0A
Mounting Type	Through Hole
Package / Case	Vertical, No Base, 2 PC Pin
Operating Temperature	-25°C ~ 105°C
Product Status	Active
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Packaging	Tray

Substitute Part Grouping Explanation

Substitute parts for the SN14P-770H are identified based on the following criteria:

Common Substitution Parameters:

Series: SN (KEMET common mode choke series)
Filter Type: Power Line
Number of Lines: 2
Mounting Type: Through Hole
Package / Case: Vertical, No Base, 2 PC Pin
Operating Temperature Range: -25°C ~ 105°C
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Electrical Differentiation: Substitute parts vary in inductance value (measured at 100 kHz), DC resistance, and maximum current rating. Selection of an alternative part depends on the specific inductance and current requirements of the application circuit. Parts with different inductance values serve different filtering frequency ranges and impedance characteristics.

Parameter Comparison

Part Number	Inductance @ 100 kHz	DC Resistance (Ohm)	Current Rating (A)	Mounting Type	Operating Temp (°C)	Product Status	Packaging
SN14P-770H	550 µH	0.0850	3.0	Through Hole	-25 ~ 105	Active	Tray
SN12-800	250 µH	0.0600	5.0	Through Hole	-25 ~ 105	Active	Tray
SN12HP-2201	20 µH	0.0130	10.0	Through Hole	-25 ~ 105	Active	Tray
SN14P-300J	80 µH	0.0150	15.0	Through Hole	-25 ~ 105	Active	Bulk
SN16P-130	10 µH	0.0050	10.0	Through Hole	-25 ~ 105	Active	Tray
SN3-100	2.5 µH	0.0250	3.0	Through Hole	-25 ~ 105	Active	Bulk
SN3-300	20 µH	0.1500	0.5	Through Hole	-25 ~ 105	Active	Bulk
SN5-1700	12 µH	0.0480	2.0	Through Hole	-25 ~ 105	Active	Bulk
SN5-5501	80 µH	0.2000	1.0	Through Hole	-25 ~ 105	Active	Bulk
SN5-700	140 µH	0.2500	0.9	Through Hole	-25 ~ 105	Active	Bulk

Engineering Selection Recommendations

All listed substitute parts share the same mechanical form factor (through-hole, vertical mounting, 2-pin configuration) and operate within the identical temperature range (-25°C to 105°C). All parts maintain Active product status and comply with ROHS3 and REACH requirements.

Selection Criteria:

Inductance Matching: The SN14P-770H operates at 550 µH. Parts with significantly different inductance values (such as SN16P-130 at 10 µH or SN3-100 at 2.5 µH) serve different frequency filtering requirements and should be selected only when the application circuit specifies a different inductance value.
Current Capacity: The SN14P-770H is rated for 3.0A. Substitute parts with higher current ratings (SN12-800 at 5.0A, SN12HP-2201 at 10.0A, SN14P-300J at 15.0A, SN16P-130 at 10.0A) provide additional margin for higher-current applications. Parts with lower current ratings (SN3-300 at 0.5A, SN5-5501 at 1.0A, SN5-700 at 0.9A, SN5-1700 at 2.0A) are suitable only for reduced-current circuits.
DC Resistance: Lower DCR values reduce power dissipation and heat generation. The SN14P-770H exhibits 0.0850 Ohm DCR. Parts with lower DCR (SN16P-130 at 0.0050 Ohm, SN12HP-2201 at 0.0130 Ohm, SN14P-300J at 0.0150 Ohm) offer improved efficiency characteristics.
Packaging Format: The main part is supplied in Tray packaging. Substitute parts SN12-800 and SN16P-130 also use Tray packaging. Parts designated as Bulk packaging (SN14P-300J, SN3-100, SN3-300, SN5-1700, SN5-5501, SN5-700) may require different handling and storage procedures.

Frequently Asked Questions (FAQ)

Q: Can I use SN12-800 as a direct replacement for SN14P-770H?

A: SN12-800 shares the same mechanical form factor and operating temperature range but differs in electrical specifications. SN12-800 provides 250 µH inductance (compared to 550 µH) and supports 5.0A current (compared to 3.0A). Use SN12-800 only if your circuit design specifies 250 µH inductance and can accommodate the different DC resistance of 0.0600 Ohm.

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

A: Both packaging formats contain the same electronic component. Tray packaging provides organized component presentation suitable for automated assembly processes. Bulk packaging supplies components in loose form. Selection depends on manufacturing process requirements and handling capabilities.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the environmental and regulatory requirements of the SN14P-770H.

Q: How do I select the correct inductance value for my application?

A: Inductance selection depends on the target filtering frequency and impedance requirements of your power line circuit. The SN14P-770H at 550 µH is suitable for lower-frequency filtering applications. Higher inductance values (SN5-700 at 140 µH, SN5-5501 at 80 µH, SN14P-300J at 80 µH) provide stronger filtering at lower frequencies. Lower inductance values (SN16P-130 at 10 µH, SN12HP-2201 at 20 µH) are appropriate for higher-frequency filtering requirements.

Q: What happens if I use a part with lower current rating than required?

A: Using a part with insufficient current rating will result in excessive heat generation, potential component failure, and circuit malfunction. Always select a substitute part with current rating equal to or greater than the application requirement.

Q: Are all parts available in the same quantities?

A: Inventory levels vary by part number. Refer to current stock information for each specific part number when planning procurement.

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