PM3316-102M Equivalent & Substitute Parts

Part Overview

The PM3316-102M is a 1 mH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 300 mA with 3Ω DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. Substitute parts are selected based on matching inductance value, current rating, DC resistance tolerance, core material, and mounting compatibility.

Key Parameters

Parameter	Value
Inductance	1 mH
Current Rating	300 mA
DC Resistance (DCR)	3Ω
Core Type	Ferrite, Unshielded Drum Core
Tolerance	±20%
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 105°C
Package Type	Nonstandard

Substitute Part Grouping Explanation

Substitution eligibility for the PM3316-102M is determined by the following criteria:

Primary Matching Parameters:

Inductance: 1 mH (±20% tolerance acceptable)
Current Rating: 300 mA minimum
DC Resistance: 3Ω to 3.9Ω maximum
Core Material: Ferrite, unshielded
Mounting: Surface mount, nonstandard package
Saturation Current: 300 mA minimum

Substitute Classification:

Direct Equivalent: PM3316-102M-RC matches the base part number series, inductance, current rating, and DC resistance within tolerance specifications.

Similar Equivalents: SDR1005-102KL and ASPI-0804T-102M-T provide matching inductance, current rating, and DC resistance specifications with compatible physical dimensions and core material.

Non-Equivalent: CM453232-151KL does not qualify as a substitute due to significantly different inductance value (150 µH vs. 1 mH) and reduced current rating (105 mA vs. 300 mA).

Parameter Comparison

Parameter	PM3316-102M	PM3316-102M-RC	SDR1005-102KL	ASPI-0804T-102M-T
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.	Abracon LLC
Inductance	1 mH	1 mH	1 mH	1 mH
Tolerance	±20%	±20%	±10%	±20%
Current Rating	300 mA	300 mA	300 mA	300 mA
Saturation Current	300 mA	350 mA	350 mA	Not specified
DC Resistance	3Ω	3.9Ω	3.9Ω Max	3Ω Max
Core Type	Ferrite, Unshielded	Ferrite, Unshielded	Ferrite, Unshielded	Ferrite, Unshielded
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

PM3316-102M-RC is the primary substitute. It maintains the same base product series, identical inductance and current specifications, and is actively manufactured by Bourns Inc. with ROHS3 compliance. The extended operating temperature range (-55°C ~ 125°C) provides broader environmental coverage than the original part.

SDR1005-102KL is an alternative substitute from Bourns Inc. with tighter inductance tolerance (±10% vs. ±20%), higher saturation current (350 mA), and active product status. Operating temperature range extends to -40°C ~ 125°C. This part is available in high inventory quantities.

ASPI-0804T-102M-T is a substitute from Abracon LLC with matching inductance, current rating, and DC resistance specifications. Operating temperature range is limited to -40°C ~ 85°C, which may restrict use in applications requiring extended low-temperature operation below -40°C.

All three substitute parts carry ROHS3 compliance, addressing regulatory requirements not met by the obsolete PM3316-102M.

Frequently Asked Questions (FAQ)

Q: Can PM3316-102M-RC be used as a direct replacement for PM3316-102M?

A: Yes. PM3316-102M-RC matches the inductance (1 mH), current rating (300 mA), DC resistance (3.9Ω within tolerance), core material, and physical dimensions. The primary difference is product status (active vs. obsolete) and extended operating temperature range.

Q: What is the difference between PM3316-102M-RC and SDR1005-102KL?

A: Both are 1 mH, 300 mA inductors from Bourns Inc. with ferrite unshielded cores. SDR1005-102KL offers tighter inductance tolerance (±10% vs. ±20%) and higher saturation current (350 mA). DC resistance is 3.9Ω maximum for both. SDR1005-102KL has higher inventory availability.

Q: Why is CM453232-151KL not listed as a substitute?

A: CM453232-151KL has a different inductance value (150 µH vs. 1 mH) and significantly lower current rating (105 mA vs. 300 mA). These parameters do not meet the electrical requirements of the PM3316-102M.

Q: Are there temperature range limitations when substituting?

A: The original PM3316-102M operates from -55°C ~ 105°C. PM3316-102M-RC and SDR1005-102KL extend the upper limit to 125°C. ASPI-0804T-102M-T is limited to -40°C ~ 85°C, which may not be suitable for applications requiring operation below -40°C or above 85°C.

Q: What is the impact of DC resistance variation between substitutes?

A: PM3316-102M specifies 3Ω, while PM3316-102M-RC and SDR1005-102KL specify 3.9Ω maximum. This 0.9Ω difference results in proportionally higher power dissipation at rated current. For 300 mA operation, the additional dissipation is approximately 0.27 mW. Verify thermal performance in the target application.

Q: Are all substitute parts RoHS compliant?

A: Yes. PM3316-102M-RC, SDR1005-102KL, and ASPI-0804T-102M-T are all ROHS3 compliant. The original PM3316-102M is RoHS non-compliant.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message