Honeywell 363M5K Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell 363M5K is a 5 kOhm, 0.5W through-hole trimmer potentiometer with cermet resistive material, top adjustment, and PC pin termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Active alternatives from Bourns Inc. Trimpot® 3386 series provide direct functional equivalence while offering improved availability and compliance options.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance	5 kOhms	Critical - must match exactly
Power Rating	0.5W (1/2W)	Critical - must match exactly
Tolerance	±10%	Critical - must match exactly
Temperature Coefficient	±100ppm/°C	Critical - must match exactly
Number of Turns	1 Turn	Critical - must match exactly
Adjustment Type	Top Adjustment	Critical - must match exactly
Resistive Material	Cermet	Critical - must match exactly
Mounting Type	Through Hole	Critical - must match exactly
Termination Style	PC Pins	Critical - must match exactly
Size/Dimension	Square - 0.375" x 0.375" (9.53mm x 9.53mm)	Critical - must match exactly

Substitute Part Grouping Explanation

Substitution eligibility for the Honeywell 363M5K is determined by exact matching of all electrical and mechanical parameters listed above. All qualified substitute parts maintain identical specifications for resistance value, power dissipation, tolerance, temperature coefficient, turn count, adjustment mechanism, resistive material composition, mounting configuration, termination style, and physical dimensions.

The Bourns Trimpot® 3386 series variants listed below satisfy these requirements. Substitutes are grouped by RoHS compliance status and product availability status, as these factors affect long-term supply chain viability and regulatory compliance in end-use applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff (ppm/°C)	Turns	Adjustment	Material	Mount Type	Termination	Size (mm)	Product Status	RoHS Status
363M5K	Honeywell	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Obsolete	Non-compliant
3386F-1-502	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	Non-compliant
3386F-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant
3386G-1-502	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	Non-compliant
3386G-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant
3386K-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant
3386P-1-502	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	Non-compliant
3386P-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant
3386R-1-502	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	Non-compliant
3386R-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant
3386T-1-502	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	Non-compliant
3386T-1-502LF	Bourns	5k	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	9.53 x 9.53	Active	ROHS3 Compliant

Engineering Selection Recommendations

For applications with RoHS3 compliance requirements:

Select from the following active Bourns Trimpot® 3386 series parts with ROHS3 Compliant status:

3386F-1-502LF (3,620 pcs available)
3386G-1-502LF (1,382 pcs available)
3386K-1-502LF (2,200 pcs available)
3386P-1-502LF (20,200 pcs available)
3386R-1-502LF (1,007 pcs available)
3386T-1-502LF (available)

For applications without RoHS compliance constraints:

Active alternatives include both RoHS3 compliant and non-compliant variants. The 3386P-1-502LF offers the highest inventory availability at 20,200 units. Non-compliant variants (3386F-1-502, 3386G-1-502, 3386P-1-502, 3386R-1-502, 3386T-1-502) are available for legacy system maintenance where RoHS requirements do not apply.

Inventory and supply chain considerations:

The Bourns Trimpot® 3386 series substitutes are all classified as Active products, ensuring continued availability and manufacturing support. The original Honeywell 363M5K is obsolete with limited remaining inventory (738 pcs). Transition to active Bourns equivalents is recommended for new designs and long-term production planning.

Frequently Asked Questions (FAQ)

Q: Can I use a Bourns 3386 series trimmer potentiometer as a direct replacement for the Honeywell 363M5K?

A: Yes. All listed Bourns Trimpot® 3386 variants maintain identical electrical specifications (5 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment) and mechanical parameters (cermet material, through-hole mounting, PC pin termination, 9.53mm x 9.53mm square footprint). Physical and functional compatibility is confirmed.

Q: What is the difference between the "LF" and non-"LF" variants?

A: The "LF" suffix indicates lead-free termination and ROHS3 compliance. Non-"LF" variants use standard lead-based termination and are RoHS non-compliant. Both types are electrically and mechanically equivalent. Selection depends on regulatory requirements of the end application.

Q: Why are there multiple Bourns part numbers (3386F, 3386G, 3386K, 3386P, 3386R, 3386T)?

A: These represent different sealed variants within the Trimpot® 3386 series, each with distinct sealing and environmental protection characteristics. All variants maintain identical electrical and mechanical specifications for the 5 kOhm, 0.5W configuration. Selection among variants depends on specific environmental and sealing requirements not specified in the core electrical parameters.

Q: Is the Honeywell 363M5K still available for purchase?

A: The Honeywell 363M5K is classified as obsolete. Current inventory is limited to 738 units. For new production and long-term supply assurance, transition to active Bourns Trimpot® 3386 series equivalents is necessary.

Q: Which substitute part has the best availability?

A: The Bourns 3386P-1-502LF offers the highest inventory level at 20,200 units in stock. This part is ROHS3 compliant and active, making it suitable for both new designs and legacy system replacements.

Q: Are there any electrical performance differences between the substitute parts?

A: No. All substitute parts listed maintain identical electrical specifications: 5 kOhm resistance, 0.5W power dissipation, ±10% tolerance, and ±100ppm/°C temperature coefficient. Performance in circuit operation is equivalent.

Q: Can I mix Honeywell 363M5K and Bourns 3386 series parts in the same production batch?

A: Yes, from an electrical and mechanical standpoint. However, supply chain planning should account for the obsolete status of the Honeywell part. Standardizing on a single active Bourns variant is recommended for manufacturing consistency and long-term supply continuity.

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