SPD125R-823M Equivalent & Substitute Parts

Part Overview

The SPD125R-823M is a 82 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications with a current rating of 1.4 A and maximum DC resistance of 190 mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent inductance values, shielding characteristics, and mounting compatibility are maintained within acceptable parameter tolerances, enabling procurement flexibility and supply chain continuity.

Substiute Parts

SPD125R-823M

API Delevan Inc.In Stock: 824SPD125R-823M Datasheet

Current PartRFQ

SRR1206-820YL

Bourns Inc.In Stock: 1786SRR1206-820YL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPD125R-823M are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 82 µH (exact match required)
• Shielding type: Shielded (electromagnetic containment requirement)
• Core material: Ferrite (magnetic performance characteristic)
• Mounting type: Surface Mount (assembly compatibility)
• Inductance test frequency: 1 kHz (measurement standard)

Secondary Compatibility Parameters:

• DC resistance within acceptable range for circuit performance
• Current rating sufficient for application requirements
• Operating temperature range coverage
• RoHS and REACH compliance status
• Moisture sensitivity level

The SRR1206-820YL from Bourns Inc. qualifies as a substitute based on matching inductance (82 µH), shielded ferrite drum core construction, surface mount configuration, and equivalent compliance certifications. Variations in current rating (1.2 A vs. 1.4 A), DC resistance (185 mOhm vs. 190 mOhm), and inductance tolerance (±15% vs. ±20%) represent acceptable engineering trade-offs within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

SPD125R-823M Selection Criteria:

• Applications requiring extended low-temperature operation (-55°C minimum)
• Circuits with current demands at or above 1.4 A
• Designs with strict PCB space constraints (12.00mm x 12.00mm footprint, 6.00mm height)
• Systems where maximum DC resistance tolerance of ±20% is acceptable

SRR1206-820YL Selection Criteria:

• Applications with current requirements at or below 1.2 A
• Designs tolerating slightly larger component footprint (12.70mm x 12.70mm, 6.50mm height)
• Circuits where tighter inductance tolerance (±15%) provides performance advantage
• Operating environments with minimum temperature of -40°C or higher
• Applications benefiting from lower DC resistance (185 mOhm)

Both parts maintain Active product status, ROHS3 compliance, and MSL Level 1 rating. Selection between these components depends on specific application current requirements, thermal environment, and PCB layout constraints. Both parts are suitable for equivalent electromagnetic shielding performance in surface mount inductor applications.

Frequently Asked Questions (FAQ)

Q: Can SRR1206-820YL directly replace SPD125R-823M in all applications?

A: Direct substitution is valid when application current requirements do not exceed 1.2 A. If the circuit draws current above 1.2 A, the SPD125R-823M (1.4 A rating) is required. Both parts provide identical 82 µH inductance and shielded ferrite drum core construction.

Q: What is the impact of the 0.7mm difference in footprint size?

A: The SRR1206-820YL is 0.70mm larger in length and width (12.70mm vs. 12.00mm) and 0.50mm taller in height (6.50mm vs. 6.00mm). PCB layout must accommodate these dimensional differences. Verify clearance with surrounding components and trace routing before substitution.

Q: Why does the substitute part have a lower current rating but higher saturation current?

A: Current rating (1.2 A) represents the continuous operating current limit for the SRR1206-820YL. Saturation current (2.1 A) indicates the point at which magnetic core saturation begins. The SPD125R-823M has equal current rating and saturation current (1.4 A), indicating different core design characteristics. Application requirements determine which specification is critical.

Q: Are there temperature range implications for substitution?

A: The SPD125R-823M operates from -55°C to 125°C, while the SRR1206-820YL operates from -40°C to 125°C. If the application requires operation below -40°C, the SPD125R-823M is mandatory. Both parts support the full 125°C upper temperature limit.

Q: How do inductance tolerances affect circuit performance?

A: SPD125R-823M has ±20% tolerance; SRR1206-820YL has ±15% tolerance. The substitute provides tighter tolerance, resulting in more consistent inductance values across production batches. For applications sensitive to inductance variation, the SRR1206-820YL may provide performance advantages.

Q: What is the significance of DC resistance differences?

A: SPD125R-823M maximum DCR is 190 mOhm; SRR1206-820YL maximum DCR is 185 mOhm. Lower DC resistance reduces resistive losses and heat generation. For high-current or efficiency-critical applications, the lower DCR of the substitute may be advantageous, provided current rating requirements are met.

Q: Are both parts suitable for automated assembly?

A: Yes. Both parts are Surface Mount components supplied in Tape & Reel (TR) packaging with MSL Level 1 rating (unlimited shelf life). Both are compatible with standard pick-and-place assembly equipment and reflow soldering processes.

Q: What compliance certifications apply to both parts?

A: Both SPD125R-823M and SRR1206-820YL are ROHS3 compliant and REACH unaffected. Both carry ECCN classification EAR99 and HTSUS code 8504.50.4000. Compliance status is equivalent for both parts.