1210-332K Equivalent & Substitute Parts

Part Overview

The 1210-332K is a fixed unshielded inductor manufactured by API Delevan Inc., rated at 3.3 µH inductance with a maximum current rating of 393 mA and 1.2Ohm maximum DC resistance. This component is classified as an active product and is available in surface mount packaging (1210/3225 Metric). The part is designed for applications requiring stable inductance values across a wide operating temperature range of -55°C to 125°C. Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while accommodating different availability, compliance requirements, or packaging constraints.

Substiute Parts

1210-332K

API Delevan Inc.In Stock: 10671210-332K Datasheet

Current PartRFQ

CM322522-3R3JL

Bourns Inc.In Stock: 10718CM322522-3R3JL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1210-332K are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Core Electrical Parameters:

• Inductance value: 3.3 µH (tolerance range ±10% for main part, ±5% for substitute)
• DC Resistance: 1.2Ohm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical & Environmental Parameters:

• Surface mount mounting type
• Operating temperature compatibility
• Moisture sensitivity level: 1 (Unlimited)
• Physical dimensions within acceptable tolerance for PCB placement

Performance Parameters:

• Q factor at test frequency (7.9-7.96 MHz range)
• Self resonant frequency capability

The CM322522-3R3JL from Bourns Inc. qualifies as a substitute based on matching inductance, DC resistance, core material, shielding type, and surface mount configuration. However, the current rating differential (180 mA versus 393 mA) and operating temperature lower limit (-40°C versus -55°C) represent design trade-offs that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

1210-332K Selection Criteria: The 1210-332K remains the primary choice for applications requiring the full 393 mA current rating and extended low-temperature operation down to -55°C. This part is active and maintains original manufacturer specifications. However, the component carries RoHS non-compliant status, which may restrict use in regulated markets or applications with strict environmental compliance requirements.

CM322522-3R3JL Selection Criteria: The CM322522-3R3JL from Bourns Inc. is suitable for applications where current requirements do not exceed 180 mA and minimum operating temperature is -40°C or higher. This substitute offers ROHS3 compliance, providing regulatory advantage for markets with environmental restrictions. The tighter inductance tolerance (±5% versus ±10%) and higher self resonant frequency (65 MHz versus 58 MHz) may provide performance benefits in specific circuit topologies. The substitute is currently in active production with higher inventory availability (10,708 pieces versus 998 pieces).

Compliance Considerations: Selection between these parts should account for RoHS/REACH requirements specific to the end application and target market. The 1210-332K is REACH Unaffected; the CM322522-3R3JL is REACH Unaffected and ROHS3 Compliant.

Frequently Asked Questions (FAQ)

Q: Can the CM322522-3R3JL replace the 1210-332K in all applications?

A: No. The CM322522-3R3JL has a maximum current rating of 180 mA compared to the 1210-332K's 393 mA rating. Substitution is valid only for circuits where the actual operating current does not exceed 180 mA. Additionally, the minimum operating temperature is -40°C for the substitute versus -55°C for the original part.

Q: Are the physical dimensions compatible for PCB placement?

A: Both parts are surface mount components with similar dimensions. The 1210-332K measures 0.128" L x 0.095" W (3.25mm x 2.42mm) with 0.101" maximum seated height. The CM322522-3R3JL measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.087" maximum seated height. These dimensions are sufficiently close for standard PCB footprints designed for 1210 (3225 Metric) packages, though physical verification is recommended for high-density layouts.

Q: What is the significance of the inductance tolerance difference?

A: The 1210-332K has ±10% tolerance while the CM322522-3R3JL has ±5% tolerance. The tighter tolerance of the substitute may provide more predictable circuit performance in applications sensitive to inductance variation, such as resonant circuits or precision filtering networks.

Q: How do the Q factors compare?

A: Both parts specify Q = 30 at their respective test frequencies (7.9 MHz for the 1210-332K and 7.96 MHz for the CM322522-3R3JL). The Q factors are equivalent for practical circuit design purposes.

Q: What is the impact of the different self resonant frequencies?

A: The 1210-332K has a self resonant frequency of 58 MHz while the CM322522-3R3JL is 65 MHz. The higher self resonant frequency of the substitute may extend the usable frequency range for certain applications, though both parts are suitable for standard RF and filtering applications below these frequencies.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance is a regulatory and environmental requirement, not an electrical performance specification. The ROHS3 compliance of the CM322522-3R3JL does not alter its electrical characteristics compared to the RoHS non-compliant 1210-332K. Selection should be based on market and application requirements for environmental compliance.

Q: Are both parts available in the same packaging format?

A: Both parts are supplied in Tape & Reel (TR) packaging suitable for automated assembly. The 1210-332K uses standard 1210 (3225 Metric) supplier device packaging, while the CM322522-3R3JL is classified as nonstandard packaging. Verify reel specifications and tape dimensions with suppliers before ordering for automated placement equipment compatibility.