Bourns 3299Z-1-502 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3299Z-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and side adjustment. This sealed Trimpot® 3299 series component features cermet resistive material and 25-turn adjustment capability. The part is currently active in production with 805 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different manufacturing specifications.

Key Parameters

Parameter	Value
Resistance	5 kOhms
Power Rating	0.5W (1/2W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	25
Adjustment Type	Side Adjustment
Resistive Material	Cermet
Mounting Type	Through Hole
Termination Style	PC Pins
Packaging	Tube
Series	Trimpot® 3299 - Sealed
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the 3299Z-1-502 is determined by strict equivalence across the following critical parameters:

Resistance value: 5 kOhms
Power rating: 0.5W (1/2W)
Tolerance: ±10%
Temperature coefficient: ±100ppm/°C
Number of turns: 25
Adjustment type: Side Adjustment
Resistive material: Cermet
Mounting type: Through Hole
Termination style: PC Pins
Packaging: Tube

Two substitute parts meet these criteria. The 3299Z-1-502LF is an identical electrical and mechanical equivalent with enhanced RoHS3 compliance status. The 3296Z-1-502 is a cross-series alternative from the Trimpot® 3296 line that maintains all electrical specifications and adjustment characteristics but differs in physical face dimensions (0.190" height versus 0.240" height).

Parameter Comparison

Parameter	3299Z-1-502	3299Z-1-502LF	3296Z-1-502
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.
Resistance	5 kOhms	5 kOhms	5 kOhms
Power Rating	0.5W	0.5W	0.5W
Tolerance	±10%	±10%	±10%
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Number of Turns	25	25	25
Adjustment Type	Side Adjustment	Side Adjustment	Side Adjustment
Resistive Material	Cermet	Cermet	Cermet
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pins	PC Pins	PC Pins
Series	Trimpot® 3299 - Sealed	Trimpot® 3299 - Sealed	Trimpot® 3296 - Sealed
Face Dimension (Height)	0.240" (6.10mm)	0.240" (6.10mm)	0.190" (4.83mm)
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS non-compliant
REACH Status	REACH Affected	REACH Affected	REACH Affected
ECCN	EAR99	EAR99	EAR99
HTSUS	8533.40.8050	8533.40.8050	8533.40.8050
Product Status	Active	Active	Active
Inventory	805 Pcs	1400 Pcs	1164 Pcs

Engineering Selection Recommendations

The 3299Z-1-502LF is the direct equivalent replacement for the 3299Z-1-502, offering identical electrical and mechanical specifications with the addition of RoHS3 compliance. Selection of the 3299Z-1-502LF is appropriate for applications requiring enhanced environmental compliance or when RoHS3 certification is mandated by design or procurement standards.

The 3296Z-1-502 serves as a functional substitute when space constraints permit a reduced height profile (0.190" versus 0.240"). All electrical parameters, adjustment characteristics, and termination specifications remain equivalent. The 3296Z-1-502 maintains the same RoHS non-compliance status as the original 3299Z-1-502.

Selection between these substitutes depends on compliance requirements and physical layout constraints. All three parts share identical electrical performance, tolerance, temperature coefficient, and adjustment resolution.

Frequently Asked Questions (FAQ)

Q: Can the 3299Z-1-502LF be used as a direct replacement for the 3299Z-1-502?

A: Yes. The 3299Z-1-502LF is electrically and mechanically identical to the 3299Z-1-502, with the addition of RoHS3 compliance certification. No circuit modifications or layout adjustments are required.

Q: What is the primary difference between the 3299Z-1-502 and the 3296Z-1-502?

A: The primary difference is physical height. The 3299Z-1-502 has a face dimension of 0.240" (6.10mm), while the 3296Z-1-502 measures 0.190" (4.83mm) in height. All electrical specifications, resistance value, power rating, tolerance, temperature coefficient, and adjustment characteristics are identical.

Q: Can the 3296Z-1-502 be used in applications designed for the 3299Z-1-502?

A: The 3296Z-1-502 is electrically equivalent and functionally compatible. However, the reduced height must be verified against PCB layout and mechanical clearance requirements. If the original design accommodates the smaller profile or if layout permits, substitution is valid.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The 3299Z-1-502LF is RoHS3 compliant, while both the 3299Z-1-502 and 3296Z-1-502 are RoHS non-compliant. All three parts are REACH Affected. Selection should align with applicable environmental regulations and procurement requirements.

Q: Do all three parts share the same packaging?

A: Yes. All three parts are supplied in tube packaging, ensuring consistent handling and storage requirements.

Q: Are the electrical performance characteristics identical across all three parts?

A: Yes. Resistance (5 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (25), and adjustment type (side adjustment) are identical across the 3299Z-1-502, 3299Z-1-502LF, and 3296Z-1-502.

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