CSBX1275-100M Equivalent & Substitute Parts

Part Overview

The CSBX1275-100M is a high saturation power inductor manufactured by CODACA, designed for surface mount applications requiring controlled inductance and current handling in compact form factors. This shielded wirewound inductor operates across an extended temperature range and maintains active product status with full RoHS3 compliance. Substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and environmental ratings to ensure direct functional equivalence in circuit applications.

Substiute Parts

CSBX1275-100M

CODACAIn Stock: 1317CSBX1275-100M Datasheet

Current PartRFQ

CSBX1275-100M

CODACAIn Stock: 1317CSBX1275-100M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSBX1275-100M are identified through parametric equivalence matching. The critical parameters that define substitution eligibility are:

• Inductance Value: 10 µH with ±20% tolerance
• Current Rating: Minimum 11 A continuous current handling
• Saturation Current: Minimum 21 A Isat performance
• DC Resistance: Maximum 10.1 mOhm to maintain thermal and efficiency specifications
• Core Material: Metal Composite construction for saturation characteristics
• Shielding: Shielded configuration to control electromagnetic interference
• Operating Temperature: -55°C to 150°C range
• Mounting Type: Surface Mount compatibility
• Package Dimensions: 13.80 mm × 12.80 mm footprint with 7.60 mm maximum height
• Compliance: ROHS3 compliance and MSL 1 rating

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The CSBX1275-100M is an active product with full ROHS3 compliance and REACH unaffected status, making it suitable for current production applications. The part carries MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.

When selecting equivalent inductors, prioritize parts with identical electrical specifications: 10 µH inductance at ±20% tolerance, 11 A continuous current rating, and 21 A saturation current. The DC resistance specification of 10.1 mOhm maximum is critical for thermal management and power efficiency calculations.

The metal composite core construction with shielding is essential for applications requiring controlled saturation behavior and electromagnetic containment. Surface mount packaging with the specified 13.80 × 12.80 × 7.60 mm dimensions ensures PCB layout compatibility without requiring footprint modifications.

Compliance certifications (ROHS3, REACH unaffected, EAR99 ECCN classification) must be maintained in substitute selections to ensure regulatory alignment with end-use applications.

Frequently Asked Questions (FAQ)

Q: Can the CSBX1275-100M be substituted with inductors from other manufacturers?

A: Substitution is possible only with parts meeting all specified electrical and mechanical parameters: 10 µH inductance (±20% tolerance), 11 A current rating, 21 A saturation current, 10.1 mOhm maximum DC resistance, metal composite core, shielded construction, and identical package dimensions (13.80 × 12.80 × 7.60 mm). Manufacturer origin is secondary to parametric equivalence.

Q: What is the significance of the 21 A saturation current specification?

A: The saturation current (Isat) of 21 A defines the maximum current level before the inductor's magnetic core saturates, causing inductance to degrade. This parameter is critical for applications with transient current spikes or peak load conditions. Substitute parts must maintain this 21 A minimum Isat to preserve circuit performance.

Q: Does the ±20% inductance tolerance affect substitution eligibility?

A: The ±20% tolerance is the specified manufacturing tolerance for this part family. Substitute inductors must operate within this same tolerance band to ensure circuit design margins are maintained. Parts with tighter or looser tolerances may not be direct substitutes.

Q: Is the shielded configuration mandatory for substitution?

A: Yes. The shielded wirewound design is specified to control electromagnetic interference in the application. Unshielded inductors, even with identical electrical ratings, are not equivalent substitutes due to different EMI characteristics.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean for handling?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage, handling, or assembly. This simplifies logistics and manufacturing processes compared to higher MSL ratings.

Q: Are there any restrictions on operating temperature for substitute parts?

A: Substitute parts must support the full -55°C to 150°C operating temperature range. Parts with narrower temperature specifications are not equivalent and may fail in extreme temperature environments.

Q: How does the 10.1 mOhm DC resistance specification impact circuit design?

A: DC resistance directly affects power dissipation (P = I²R) and thermal performance. The 10.1 mOhm maximum specification ensures predictable heat generation at rated current (11 A). Substitute parts with higher DCR will generate excessive heat; lower DCR values are acceptable but may indicate different core materials or construction methods.

Q: Can the CSBX1275-100M be used in applications requiring different inductance values?

A: No. The 10 µH inductance value is fixed for this part number. Applications requiring different inductance values require separate part numbers from the CSBX1275 series or alternative inductor families.

Q: What is the significance of the 100 kHz inductance frequency test specification?

A: The inductance value of 10 µH is measured and guaranteed at 100 kHz test frequency. This frequency is standard for power inductor characterization and ensures consistent performance across applications operating in this frequency range.