1120-8R2M Equivalent & Substitute Parts

Part Overview

The Bourns 1120-8R2M is an 8.2 µH unshielded drum core wirewound inductor rated for 11.4 A with a maximum DC resistance of 7 mOhm. This through-hole radial component operates across a temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

1120-8R2M

Bourns Inc.In Stock: 7321120-8R2M Datasheet

Current PartRFQ

DC780-822L

API Delevan Inc.In Stock: 1155DC780-822L Datasheet

SimilarRFQ

IHB2BV8R2M

Vishay DaleIn Stock: 966IHB2BV8R2M Datasheet

SimilarRFQ

IHB2EB8R2M

Vishay DaleIn Stock: 1035IHB2EB8R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Inductance Value: 8.2 µH (exact match required)
• Current Rating: 11.4 A minimum
• DC Resistance: 7 mOhm maximum
• Core Material: Ferrite
• Shielding: Unshielded
• Mounting Type: Through Hole
• Package Configuration: Radial, Vertical Cylinder

All listed substitute parts meet these core electrical and mechanical requirements. Tolerance variations and extended temperature ranges represent improvements over the obsolete main part and do not compromise substitution validity.

Parameter Comparison

Engineering Selection Recommendations

DC780-822L (API Delevan Inc.) is the primary substitute for new designs and production transitions. This part is currently active in production, offers improved tolerance (±15% vs ±20%), and extends the operating temperature range to 125°C. The saturation current specification of 38 A provides additional design margin. Physical dimensions are comparable to the original part.

IHB2EB8R2M (Vishay Dale) and IHB2BV8R2M (Vishay Dale) are functionally equivalent alternatives from the IHB series. Both maintain the required electrical specifications and through-hole radial configuration. Selection between these options and the API Delevan substitute should be based on supplier availability, lead time, and existing qualification history within your organization.

All three substitutes are RoHS non-compliant, matching the compliance status of the obsolete original part. For applications requiring RoHS compliance, additional component evaluation beyond this list is necessary.

Frequently Asked Questions (FAQ)

Q: Can I use these substitutes interchangeably with the 1120-8R2M?

A: Yes, all listed parts meet the core electrical requirements: 8.2 µH inductance, 11.4 A current rating, and 7 mOhm maximum DC resistance. Physical dimensions are within acceptable tolerances for radial, vertical cylinder through-hole mounting.

Q: What is the difference between the Bourns 1120-8R2M and the API Delevan DC780-822L?

A: The primary differences are product status (obsolete vs. active), inductance tolerance (±20% vs. ±15%), and operating temperature range (-55°C to 105°C vs. -55°C to 125°C). The DC780-822L also specifies a saturation current of 38 A.

Q: Are there any compliance differences between the main part and substitutes?

A: All parts listed are RoHS non-compliant and REACH unaffected. Compliance status is identical across the group.

Q: How do physical dimensions compare?

A: The 1120-8R2M measures 0.810" diameter by 0.840" height. The DC780-822L is slightly smaller at 0.772" diameter by 0.831" height. Both fit standard through-hole radial mounting patterns. Verify PCB layout clearances for your specific application.

Q: Which substitute should I select for a new design?

A: Selection should be based on supplier availability, lead time, and your organization's existing qualification and procurement relationships. The DC780-822L offers the advantage of active production status and extended temperature range.