0805-2N8J Fixed Inductor Equivalent & Substitute Parts

Part Overview

The 0805-2N8J is a 2.8 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 800 mA continuous current with a maximum DC resistance of 60 mOhm. This component is designed for surface mount applications in high-frequency circuits requiring low inductance values with minimal parasitic resistance.

The 0805-2N8J has reached obsolete product status. Identifying qualified substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this inductor.

Key Parameters

Parameter	Value	Unit
Inductance	2.8	nH
Tolerance	±5%	—
Current Rating	800	mA
DC Resistance (Max)	60	mOhm
Core Material	Ceramic	—
Shielding	Unshielded	—
Operating Temperature Range	-40 to 125	°C
Mounting Type	Surface Mount	—
Q @ Frequency	80 @ 1.5 GHz	—
Self Resonant Frequency	7.9	GHz

Substitute Part Grouping Explanation

Substitute parts for the 0805-2N8J are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Inductance value: 2.8 nH (±5% tolerance maintained)
Current rating: 800 mA minimum
DC resistance: 60 mOhm maximum
Core material: Ceramic
Shielding configuration: Unshielded
Operating temperature range: -40°C to 125°C minimum
Inductance test frequency: 250 MHz

Mechanical Compatibility Criteria:

Mounting type: Surface mount
Package classification: 0805 form factor (2.29 mm × 1.73 mm footprint)
Height seated maximum: 1.52 mm

Two substitute parts meet these criteria and are classified as direct equivalents.

Parameter Comparison

Parameter	0805-2N8J (API Delevan)	36502A2N8JTDG (TE Connectivity)	CW201212-2N8J (Bourns)
Inductance	2.8 nH	2.8 nH	2.8 nH
Tolerance	±5%	±5%	±5%
Current Rating	800 mA	800 mA	800 mA
DC Resistance (Max)	60 mOhm	60 mOhm	60 mOhm
Core Material	Ceramic	Ceramic	Ceramic
Shielding	Unshielded	Unshielded	Unshielded
Operating Temperature	-40 to 125°C	-40 to 125°C	-40 to 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Q @ 1.5 GHz	80	80	Not specified at 1.5 GHz
Self Resonant Frequency	7.9 GHz	7.9 GHz	6 GHz
Footprint (L × W)	2.29 × 1.73 mm	2.29 × 1.73 mm	2.10 × 1.50 mm
Height (Max)	1.52 mm	1.52 mm	1.50 mm
Product Status	Obsolete	Active	Active
RoHS Compliance	Non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

36502A2N8JTDG (TE Connectivity Passive Product):

This substitute provides complete electrical and mechanical equivalence to the 0805-2N8J. The part maintains identical inductance, current rating, DC resistance, and frequency characteristics. The 36502A2N8JTDG carries active product status with AEC-Q200 automotive qualification and ROHS3 compliance, supporting long-term supply availability. Packaging is supplied in Tape & Reel format. This part is the preferred substitute for new designs and production transitions.

CW201212-2N8J (Bourns Inc.):

This substitute meets all core electrical specifications with identical inductance, current rating, and DC resistance values. The CW201212-2N8J maintains active product status with ROHS3 compliance. Physical dimensions are slightly reduced (2.10 × 1.50 mm footprint, 1.50 mm height) compared to the original part, requiring PCB layout verification to confirm mechanical fit within existing designs. The self-resonant frequency is specified at 6 GHz versus 7.9 GHz for the original part; this difference may affect performance in applications operating near or above 6 GHz. This substitute is suitable for applications where the reduced footprint provides design benefits and frequency performance remains adequate.

Frequently Asked Questions (FAQ)

Q: Can the 36502A2N8JTDG be used as a direct replacement for the 0805-2N8J without PCB modifications?

A: Yes. The 36502A2N8JTDG maintains identical footprint dimensions (2.29 × 1.73 mm) and height (1.52 mm), enabling direct substitution on existing PCB layouts without modification.

Q: What is the primary difference between the two substitute parts?

A: The 36502A2N8JTDG and CW201212-2N8J differ in physical dimensions and self-resonant frequency. The CW201212-2N8J has a smaller footprint (2.10 × 1.50 mm) and lower self-resonant frequency (6 GHz versus 7.9 GHz). Both meet the electrical specifications of the original part.

Q: Does the CW201212-2N8J require PCB layout changes?

A: The CW201212-2N8J has a reduced footprint compared to the 0805-2N8J. PCB pad layouts must be verified for compatibility. If the original design uses pads sized for 2.29 × 1.73 mm, the smaller component may require pad adjustment or use of a footprint adapter.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 36502A2N8JTDG and CW201212-2N8J are ROHS3 compliant, whereas the original 0805-2N8J is non-compliant. This compliance upgrade supports regulatory requirements for new production.

Q: Which substitute is recommended for high-frequency applications above 6 GHz?

A: The 36502A2N8JTDG is specified with a self-resonant frequency of 7.9 GHz and is recommended for applications operating in the 6 to 7.9 GHz range. The CW201212-2N8J, with a 6 GHz self-resonant frequency, may exhibit reduced performance above this frequency.

Q: What is the inventory status of the substitute parts?

A: The 36502A2N8JTDG has 4620 pieces in stock. The CW201212-2N8J has 963 pieces in stock. Both are available as new original components.

Q: Can the 0805-2N8J be used in new designs?

A: No. The 0805-2N8J is obsolete. New designs must use either the 36502A2N8JTDG or CW201212-2N8J to ensure long-term supply availability and compliance with current regulatory standards.

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