ACPP0805 18K B Equivalent & Substitute Parts

Part Overview

The ACPP0805 18K B is an 18 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) surface mount package manufactured by Ohmite. This component is part of the ARCOL and ACPP series and maintains active product status. The 0.1W power rating and ±0.1% tolerance make it suitable for precision analog circuits and measurement applications. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and thermal characteristics within the allowed parameter range for this resistor category.

Key Parameters

Parameter	Value
Resistance	18 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Matching Parameters:

Resistance value: 18 kOhms
Tolerance: ±0.1%
Package: 0805 (2012 Metric)
Composition: Thin Film
Temperature Coefficient: ±25ppm/°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Power Rating: Equal to or greater than 0.1W
Operating Temperature Range: Must encompass or match -55°C ~ 155°C minimum
Height - Seated (Max): Physical dimension variation within 0805 package specification

All identified substitute parts meet these criteria. Substitutes are grouped by power rating upgrade level, which represents increased thermal capability while maintaining all other electrical specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Height Max (mm)	Features	RoHS
ACPP0805 18K B	Ohmite	18 kOhms	±0.1%	0.1	±25	-55 ~ 155	0.65	—	ROHS3
CPF0805B18KE1	TE Connectivity	18 kOhms	±0.1%	0.1	±25	-55 ~ 155	0.65	—	ROHS3
ERA-6AEB183V	Panasonic	18 kOhms	±0.1%	0.125	±25	-55 ~ 155	0.60	Automotive AEC-Q200	ROHS3
PAT0805E1802BST1	Vishay Dale	18 kOhms	±0.1%	0.2	±25	-55 ~ 155	0.46	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant	ROHS3
RG2012P-183-B-T5	Susumu	18 kOhms	±0.1%	0.125	±25	-55 ~ 155	0.50	Anti-Sulfur, Automotive AEC-Q200	ROHS3
RT0805BRD0718KL	YAGEO	18 kOhms	±0.1%	0.125	±25	-55 ~ 155	0.60	—	ROHS3
TNPW080518K0BEEA	Vishay Dale	18 kOhms	±0.1%	0.26	±25	-55 ~ 175	0.55	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant	ROHS3

Engineering Selection Recommendations

Direct Equivalent (Same Power Rating): CPF0805B18KE1 from TE Connectivity Passive Product is a direct equivalent to ACPP0805 18K B, matching all electrical and mechanical specifications including 0.1W power rating and 0.65mm maximum seated height.

Power Rating Upgrades (0.125W): ERA-6AEB183V (Panasonic), RG2012P-183-B-T5 (Susumu), and RT0805BRD0718KL (YAGEO) provide increased thermal capability at 0.125W while maintaining identical electrical performance. ERA-6AEB183V and RG2012P-183-B-T5 include Automotive AEC-Q200 certification. RG2012P-183-B-T5 additionally features anti-sulfur coating.

Power Rating Upgrades (0.2W and 0.26W): PAT0805E1802BST1 (Vishay Dale) offers 0.2W rating with anti-sulfur and moisture-resistant features plus AEC-Q200 certification. TNPW080518K0BEEA (Vishay Dale) provides the highest power rating at 0.26W with extended operating temperature to 175°C, anti-sulfur coating, moisture resistance, and AEC-Q200 certification.

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Selection should be based on application thermal requirements and any automotive or environmental qualification needs.

Frequently Asked Questions (FAQ)

Q: Can CPF0805B18KE1 be used as a direct replacement for ACPP0805 18K B? A: Yes. CPF0805B18KE1 matches all electrical specifications (18 kOhms, ±0.1%, 0.1W), package dimensions (0805), temperature coefficient (±25ppm/°C), and operating range (-55°C ~ 155°C). It is a direct equivalent.

Q: What is the difference between the 0.1W rated ACPP0805 18K B and the 0.125W rated alternatives? A: The 0.125W alternatives (ERA-6AEB183V, RG2012P-183-B-T5, RT0805BRD0718KL) provide higher thermal dissipation capability. All other electrical parameters remain identical. Selection depends on circuit power dissipation requirements.

Q: Are the Vishay Dale TNPW080518K0BEEA and PAT0805E1802BST1 suitable for automotive applications? A: Both parts carry Automotive AEC-Q200 certification. TNPW080518K0BEEA additionally extends the operating temperature range to 175°C and includes anti-sulfur and moisture-resistant features, making it suitable for demanding automotive environments.

Q: Do all substitute parts fit the same PCB footprint as ACPP0805 18K B? A: Yes. All substitute parts use the 0805 (2012 Metric) package with identical length (2.00mm) and width (1.25mm). Seated height varies slightly (0.46mm to 0.65mm maximum), which does not affect PCB footprint compatibility.

Q: What is the significance of the anti-sulfur feature on some substitute parts? A: Anti-sulfur coating protects the resistor from corrosion in high-sulfur environments. This feature is present on PAT0805E1802BST1, RG2012P-183-B-T5, and TNPW080518K0BEEA, making them suitable for industrial and automotive applications with potential sulfur exposure.

Q: Can TNPW080518K0BEEA be used in applications with operating temperatures above 155°C? A: TNPW080518K0BEEA supports operating temperatures up to 175°C, extending the upper limit by 20°C compared to the ACPP0805 18K B. This makes it suitable for higher-temperature applications while maintaining all other electrical specifications.

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