CBC2012T1R0M Equivalent & Substitute Parts

Part Overview

The CBC2012T1R0M is a 1 µH unshielded drum core wirewound inductor manufactured by Taiyo Yuden, rated for 840 mA continuous current with a maximum DC resistance of 247 mOhm. This component is packaged in the 0805 (2012 Metric) surface mount form factor and operates across the temperature range of -40°C to 105°C.

The CBC2012T1R0M carries a product status designation of "Not For New Designs," indicating that while the part remains in inventory and functional, Taiyo Yuden has discontinued active development and support for this component. This status necessitates identification of equivalent alternatives for ongoing production requirements and new design implementations.

Substiute Parts

CBC2012T1R0M

Taiyo YudenIn Stock: 3745CBC2012T1R0M Datasheet

Current PartRFQ

L0805C1R0MDWIT

KEMETIn Stock: 1216L0805C1R0MDWIT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CBC2012T1R0M is determined by strict alignment with the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 1 µH (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Core Material: Ferrite (exact match required)
• Type: Drum Core, Wirewound (exact match required)
• Shielding: Unshielded (exact match required)
• Operating Temperature Range: -40°C to 105°C (minimum requirement)
• Tolerance: ±20% (exact match required)

Secondary Compatibility Parameters:

• Current Rating: Must equal or exceed 840 mA
• DC Resistance (DCR): Must not exceed 247 mOhm
• Current - Saturation (Isat): Must equal or exceed 700 mA

The KEMET L0805C1R0MDWIT satisfies all primary substitution criteria and maintains compatibility with the secondary electrical parameters, with the exception of current rating (700 mA versus 840 mA) and DC resistance (190 mOhm versus 247 mOhm maximum). The L0805C1R0MDWIT exhibits lower DC resistance, which represents an improvement in electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

CBC2012T1R0M (Taiyo Yuden) — Primary Component

The CBC2012T1R0M remains the preferred selection for applications requiring the full 840 mA current rating specification. This component is currently in active inventory with 3,683 units available. Although designated "Not For New Designs," the part maintains full compliance with ROHS3, REACH, and all applicable regulatory standards. The component is suitable for ongoing production support and field replacement applications where the original specification must be maintained.

L0805C1R0MDWIT (KEMET) — Substitute Component

The L0805C1R0MDWIT is classified as "Obsolete" and carries a current inventory of 1,158 units. This component is electrically compatible with the CBC2012T1R0M for applications where the maximum continuous current requirement does not exceed 700 mA. The L0805C1R0MDWIT exhibits superior DC resistance performance (190 mOhm versus 247 mOhm maximum), resulting in lower power dissipation and improved thermal characteristics within its rated current envelope.

The L0805C1R0MDWIT is suitable for substitution only in circuit designs where the operating current remains at or below 700 mA. Applications requiring the full 840 mA capability of the CBC2012T1R0M cannot use this substitute without circuit redesign or component derating.

Both components maintain identical compliance certifications, package geometry, and thermal operating ranges, ensuring mechanical and regulatory compatibility in surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the L0805C1R0MDWIT be used as a direct replacement for the CBC2012T1R0M in all applications?

A: No. The L0805C1R0MDWIT has a maximum continuous current rating of 700 mA, compared to the CBC2012T1R0M's 840 mA rating. Direct substitution is limited to applications where the circuit operates at or below 700 mA. Applications requiring the full 840 mA capability require the CBC2012T1R0M or an alternative component with equivalent current rating.

Q: Are the physical dimensions of these components identical?

A: Both components use the 0805 (2012 Metric) package designation. However, the CBC2012T1R0M has a maximum seated height of 0.057" (1.45 mm), while the L0805C1R0MDWIT has a maximum seated height of 0.041" (1.04 mm). The L0805C1R0MDWIT is physically shorter. Length and width dimensions also differ slightly (CBC2012T1R0M: 0.079" L × 0.049" W; L0805C1R0MDWIT: 0.083" L × 0.059" W). These dimensional variations must be evaluated against specific PCB layout and clearance requirements.

Q: What is the significance of the lower DC resistance in the L0805C1R0MDWIT?

A: The L0805C1R0MDWIT exhibits a DC resistance of 190 mOhm compared to the CBC2012T1R0M's 247 mOhm maximum. Lower DC resistance reduces resistive power loss (I²R losses) and heat generation during operation. For applications operating within the 700 mA current limit, this represents an improvement in efficiency and thermal performance.

Q: Are both components RoHS and REACH compliant?

A: Yes. Both the CBC2012T1R0M and L0805C1R0MDWIT are ROHS3 compliant and REACH unaffected. Both components carry identical regulatory classification (ECCN: EAR99; HTSUS: 8504.50.4000) and moisture sensitivity level (MSL 1 — Unlimited).

Q: What does "Not For New Designs" mean for the CBC2012T1R0M?

A: "Not For New Designs" indicates that Taiyo Yuden has discontinued active development and support for this component series. The part remains available in inventory and is fully functional, but the manufacturer does not recommend its use in new product development. The designation does not affect the component's performance, compliance, or suitability for ongoing production of existing designs or field replacement applications.

Q: What does "Obsolete" mean for the L0805C1R0MDWIT?

A: "Obsolete" indicates that KEMET has discontinued manufacturing and support for the L0805C1R0MDWIT. The component is no longer in active production. Current inventory (1,158 units) represents remaining stock. Once inventory is depleted, the component will no longer be available for procurement. This status makes the L0805C1R0MDWIT unsuitable for new designs or long-term production commitments.

Q: Can these components be used interchangeably in PCB assembly?

A: Mechanical and electrical interchangeability depends on circuit current requirements and PCB layout constraints. Both components are surface mount, 0805 package devices with identical inductance, tolerance, and operating temperature ranges. However, the dimensional differences (particularly height) and current rating differences must be evaluated for each specific application. PCB layout modifications may be required to accommodate the L0805C1R0MDWIT's different physical dimensions.

Q: What is the self-resonant frequency, and why is it important?

A: Both components have a self-resonant frequency of 100 MHz. This parameter defines the frequency at which the inductor's parasitic capacitance resonates with its inductance, causing the component to transition from inductive to capacitive behavior. For applications operating below 100 MHz, both components maintain stable inductive characteristics. Applications operating near or above this frequency require careful evaluation of component behavior.