1210-153K Equivalent & Substitute Parts

Part Overview

The 1210-153K is a fixed unshielded inductor manufactured by API Delevan Inc., rated at 15 µH inductance with a maximum current rating of 257 mA and 2.8 Ohm maximum DC resistance. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part maintains Active product status with 936 pieces currently in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary component is unavailable or when design requirements necessitate alternative specifications within compatible electrical and mechanical parameters.

Substiute Parts

1210-153K

API Delevan Inc.In Stock: 10101210-153K Datasheet

Current PartRFQ

CM322522-150KL

Bourns Inc.In Stock: 20902CM322522-150KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1210-153K is determined by strict alignment of the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 15 µH (±10% tolerance)
• DC Resistance: 2.8 Ohm maximum
• Q Factor: 30 @ test frequency (2.5 MHz or equivalent)
• Self Resonant Frequency: minimum 25 MHz
• Operating Temperature Range: must support -55°C ~ 125°C or equivalent
• Core Material: Ferrite unshielded construction

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package Classification: 1210 (3225 Metric) or equivalent footprint
• Physical dimensions: compatible with 0.128" L x 0.095" W envelope
• Height: maximum 0.101" seated height

Current Rating Consideration: The 1210-153K specifies 257 mA current rating. Substitute parts with lower current ratings (such as 120 mA) remain functionally compatible for applications where the actual operating current does not exceed the substitute's rating. The substitute must be evaluated against the specific application's current requirements.

The CM322522-150KL from Bourns Inc. meets the electrical specifications for inductance, DC resistance, Q factor, and core material. However, the current rating differential and package classification differences require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (1210-153K): The 1210-153K remains the specified component for applications requiring the full 257 mA current rating and extended low-temperature operation to -55°C. This part is Active in product status with substantial inventory availability (936 pieces). The component is RoHS non-compliant, which may be a consideration for certain regulatory environments.

Substitute Part (CM322522-150KL): The CM322522-150KL from Bourns Inc. is suitable as a substitute when the following conditions are met:

• Application current requirement does not exceed 120 mA
• Operating temperature range of -40°C ~ 125°C is acceptable
• RoHS3 compliance is required or preferred
• Footprint compatibility with equivalent dimensions is acceptable

The CM322522-150KL is ROHS3 compliant, providing an alternative for applications with regulatory compliance requirements. The substitute part is available in higher inventory (20,817 pieces) and features a lower seated height (0.087" vs. 0.101"), which may provide design flexibility in space-constrained applications.

Compliance Considerations: The primary part is RoHS non-compliant while the substitute is ROHS3 compliant. Selection between these parts must align with the end-application's regulatory requirements and supply chain compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can the CM322522-150KL replace the 1210-153K in all applications?

A: No. The CM322522-150KL has a maximum current rating of 120 mA compared to the 1210-153K's 257 mA rating. Substitution is only valid when the application's actual operating current does not exceed 120 mA. Additionally, the operating temperature range differs (-40°C ~ 125°C vs. -55°C ~ 125°C), so applications requiring operation below -40°C require the primary part.

Q: Are the physical dimensions compatible for PCB layout?

A: The dimensions are equivalent for footprint purposes. The 1210-153K measures 0.128" L x 0.095" W (3.25mm x 2.42mm) while the CM322522-150KL measures 0.126" L x 0.098" W (3.20mm x 2.50mm). Both fit the 1210 (3225 Metric) package classification. However, the CM322522-150KL has a lower seated height (0.087" vs. 0.101"), which may affect clearance in height-constrained designs.

Q: What is the difference between the core construction types?

A: The 1210-153K uses standard ferrite core construction, while the CM322522-150KL uses drum core wirewound construction. Both are unshielded ferrite designs with identical inductance, tolerance, and DC resistance specifications. The construction difference does not affect electrical performance for the specified parameters.

Q: How do the Q factors compare?

A: Both parts specify Q = 30, measured at slightly different frequencies (2.5 MHz for the 1210-153K and 2.52 MHz for the CM322522-150KL). These measurements are equivalent for practical engineering purposes.

Q: What is the significance of the RoHS compliance difference?

A: The 1210-153K is RoHS non-compliant while the CM322522-150KL is ROHS3 compliant. Applications subject to RoHS regulations or customer requirements for RoHS compliance must use the CM322522-150KL. Applications without such requirements can use either part based on electrical and thermal specifications.

Q: Which part should be selected for new designs?

A: For new designs, evaluate the application's actual current requirement. If current does not exceed 120 mA and operating temperature range of -40°C ~ 125°C is acceptable, the CM322522-150KL offers ROHS3 compliance and higher inventory availability. If the full 257 mA rating or -55°C operation is required, the 1210-153K is the appropriate selection.

Q: Are there any frequency-dependent performance differences?

A: The self-resonant frequency differs slightly (25 MHz for 1210-153K vs. 30 MHz for CM322522-150KL). For applications operating near or above 20 MHz, verify that the substitute's higher self-resonant frequency does not introduce unintended resonance effects in the circuit.