Equivalent & Substitute Parts for 2300HT-101-H

Part Overview

The Bourns 2300HT-101-H is a 100 µH shielded toroidal inductor rated for 8.3 A continuous current with a maximum DC resistance of 41 mOhm. This through-hole component features an iron powder core and operates across a temperature range of -55°C to 200°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Inductance	100 µH
Inductance Tolerance	±15%
Current Rating	8.3 A
DC Resistance (DCR)	41 mOhm Max
Core Material	Iron Powder
Shielding	Shielded
Mounting Type	Through Hole
Package Type	Radial, Horizontal (Open)
Operating Temperature	-55°C to 200°C
Inductance Test Frequency	1 kHz

Substitute Part Grouping Explanation

Substitution eligibility for the 2300HT-101-H is determined by the following critical parameters:

Inductance Value: Must be 100 µH with ±15% tolerance
Mounting Configuration: Must be through-hole, radial, horizontal orientation
Core Type: Iron powder core preferred for equivalent electromagnetic performance
Shielding Requirement: Shielded construction to maintain EMI containment
Current Capacity: Minimum 7.8 A acceptable; original part rated 8.3 A
DC Resistance: Maximum 35 mOhm acceptable; original part specified 41 mOhm max
Package Footprint: Physical dimensions must accommodate radial, horizontal mounting

The substitute parts PT100-1260HM and PT100R-1260HM meet the core electrical specifications (100 µH inductance, ±15% tolerance, 1 kHz test frequency) and mounting requirements. However, PT100R-1260HM is unshielded, which represents a functional difference in EMI performance.

Parameter Comparison

Parameter	2300HT-101-H (Bourns)	PT100-1260HM (API Delevan)	PT100R-1260HM (API Delevan)
Inductance	100 µH	100 µH	100 µH
Inductance Tolerance	±15%	±15%	±15%
Current Rating (Amps)	8.3 A	7.8 A	7.8 A
DC Resistance (DCR)	41 mOhm Max	35 mOhm Max	35 mOhm Max
Core Material	Iron Powder	Iron Powder	Not Specified
Shielding	Shielded	Shielded	Unshielded
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Horizontal (Open)	Radial, Horizontal (Open)	Radial, Horizontal (Open)
Inductance Test Frequency	1 kHz	1 kHz	1 kHz
Size / Dimension	1.280" Dia (32.51 mm)	1.250" Dia (31.75 mm)	1.260" Dia (32.00 mm)
Height - Seated (Max)	0.650" (16.51 mm)	0.700" (17.78 mm)	0.600" (15.24 mm)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS Non-Compliant	RoHS Non-Compliant	RoHS3 Compliant

Engineering Selection Recommendations

PT100-1260HM (API Delevan) is the primary substitute for applications requiring shielded construction. This part maintains shielded topology identical to the original 2300HT-101-H, preserves iron powder core characteristics, and operates at 7.8 A continuous current with 35 mOhm maximum DC resistance. Physical dimensions are within acceptable tolerance for radial, horizontal mounting. The part is currently active in production and available in bulk packaging.

PT100R-1260HM (API Delevan) is suitable only for applications where EMI shielding is not a design requirement. This unshielded variant offers RoHS3 compliance and improved regulatory status compared to the original part. The 7.8 A current rating and 35 mOhm DCR remain functionally equivalent. Physical dimensions are slightly more compact, with reduced height (0.600" vs. 0.650"), which may provide layout advantages in space-constrained designs.

Selection between PT100-1260HM and PT100R-1260HM depends on whether shielded performance is mandatory for the application. Both parts are active products with current availability.

Frequently Asked Questions (FAQ)

Q: Can PT100-1260HM directly replace 2300HT-101-H in all applications?

A: PT100-1260HM is functionally equivalent for applications where the 7.8 A current rating is sufficient and the 35 mOhm DCR is acceptable. Both parts are shielded, 100 µH toroidal inductors with iron powder cores and through-hole radial mounting. Physical dimensions differ slightly but remain compatible with standard radial inductor footprints.

Q: What is the key difference between PT100-1260HM and PT100R-1260HM?

A: PT100-1260HM is shielded; PT100R-1260HM is unshielded. This affects electromagnetic interference containment. PT100R-1260HM also achieves RoHS3 compliance, whereas PT100-1260HM is RoHS non-compliant. Both share identical inductance, tolerance, current rating, and DCR specifications.

Q: Does the 0.5 A reduction in current rating (8.3 A to 7.8 A) affect substitution suitability?

A: Current rating reduction must be evaluated against actual circuit requirements. If the design operates below 7.8 A continuous current, the substitute part is suitable. If the application requires the full 8.3 A capability, the substitute may not be appropriate without circuit redesign.

Q: Are there physical mounting concerns when substituting these parts?

A: All three parts use radial, horizontal through-hole mounting. Dimensional variations exist: the original is 1.280" diameter with 0.650" height; PT100-1260HM is 1.250" diameter with 0.700" height; PT100R-1260HM is 1.260" diameter with 0.600" height. Verify PCB footprint compatibility before substitution.

Q: Which substitute part offers better regulatory compliance?

A: PT100R-1260HM is RoHS3 compliant, providing superior regulatory status for new designs. PT100-1260HM remains RoHS non-compliant, matching the original part's compliance profile. Both parts are REACH unaffected and classified as EAR99.

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