AISC-0805-R027J-T Equivalent & Substitute Parts

Part Overview

The AISC-0805-R027J-T is a 27 nH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 500 mA with a maximum DC resistance of 250 mOhm. This component is designed for surface mount applications in the 0805 (2012 Metric) package format. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when electrical characteristics, mechanical compatibility, and regulatory compliance align with the original specification, enabling direct replacement in circuit designs without performance degradation.

Key Parameters

Parameter	Value
Inductance	27 nH
Tolerance	±5%
Current Rating	500 mA
DC Resistance (Max)	250 mOhm
Q @ Frequency	55 @ 500 MHz
Self Resonant Frequency	2.5 GHz
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	0805 (2012 Metric)
Shielding	Unshielded
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AISC-0805-R027J-T are qualified based on the following critical parameters:

Inductance value: 27 nH ±5%
Current rating: 500 mA minimum
DC resistance: 250 mOhm maximum
Unshielded configuration
Surface mount technology
RoHS3 compliance
MSL 1 rating
Operating temperature range compatibility

Two substitute parts meet these criteria: the Würth Elektronik 744760127C and the Murata Electronics LQW2BAS27NJ00L. Both maintain identical electrical specifications and regulatory certifications, with package form factors compatible with 0805 footprints.

Parameter Comparison

Parameter	AISC-0805-R027J-T (Abracon)	744760127C (Würth Elektronik)	LQW2BAS27NJ00L (Murata)
Inductance	27 nH	27 nH	27 nH
Tolerance	±5%	±5%	±5%
Current Rating (Amps)	500 mA	500 mA	500 mA
DC Resistance (Max)	250 mOhm	250 mOhm	250 mOhm
Q @ 500 MHz	55	55	55
Self Resonant Frequency	2.5 GHz	2.5 GHz	2.58 GHz
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Shielding	Unshielded	Unshielded	Unshielded
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

All three parts maintain Active product status and full RoHS3 compliance with unlimited moisture sensitivity ratings. Selection between the AISC-0805-R027J-T and its substitutes depends on supply chain availability and inventory levels.

The Würth Elektronik 744760127C (1936 pcs in stock) and Murata Electronics LQW2BAS27NJ00L (4906 pcs in stock) both satisfy the complete electrical and mechanical specification set. The Murata part offers an extended lower operating temperature limit of -55°C compared to -40°C for the Abracon and Würth parts, providing additional thermal margin in applications requiring sub-zero operation.

Physical dimensions vary slightly across manufacturers. The Murata LQW2BAS27NJ00L features the smallest footprint at 2.09mm × 1.53mm with 1.52mm seated height, while the Abracon original measures 2.29mm × 1.73mm with 1.55mm seated height. The Würth part dimensions are 2.29mm × 1.70mm with 1.48mm seated height. All three are compatible with standard 0805 land patterns.

Frequently Asked Questions (FAQ)

Q: Can the 744760127C or LQW2BAS27NJ00L be used as direct replacements for the AISC-0805-R027J-T?

A: Yes. Both substitute parts match the critical electrical parameters: 27 nH inductance at ±5% tolerance, 500 mA current rating, 250 mOhm maximum DC resistance, and 55 Q factor at 500 MHz. All three parts are unshielded, surface mount components with identical regulatory compliance.

Q: Are there package compatibility concerns?

A: The AISC-0805-R027J-T uses the 0805 (2012 Metric) package. The Würth 744760127C is designated as Nonstandard package but supplied in 0805 form factor. The Murata LQW2BAS27NJ00L uses the 0805 (2015 Metric) package. Physical dimensions differ slightly, but all three fit standard 0805 PCB footprints. Verify PCB layout clearances if height constraints exist, as the Murata part is 0.04mm shorter than the Abracon original.

Q: What is the difference in core material between these parts?

A: The Abracon AISC-0805-R027J-T uses a ceramic drum core. The Murata LQW2BAS27NJ00L uses an air core. The Würth 744760127C uses a ceramic drum core. Despite different core materials, all three achieve identical inductance, Q factor, and self-resonant frequency specifications.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, classified as EAR99, and carry MSL 1 (unlimited) moisture sensitivity ratings. HTSUS classification is identical across all parts: 8504.50.8000.

Q: Which part should be selected for lowest cost or fastest delivery?

A: The Murata LQW2BAS27NJ00L has the highest inventory level at 4906 pcs. The Würth 744760127C has 1936 pcs available. The Abracon original has 1102 pcs in stock. Inventory availability should be confirmed with your supplier for current stock status.

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