KY35VB182M12X40LL Equivalent & Substitute Parts

Part Overview

The KY35VB182M12X40LL is a 1800 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KY series. This radial, through-hole component is rated for 10000 hours at 105°C and is designed for general purpose applications. The part is currently active in production. Equivalent and substitute parts are necessary to address inventory availability, supply chain continuity, and specific application requirements such as RoHS compliance or performance optimization.

Substiute Parts

KY35VB182M12X40LL

Chemi-ConIn Stock: 1197KY35VB182M12X40LL Datasheet

Current PartRFQ

35ZLJ1800M12.5X35

RubyconIn Stock: 127835ZLJ1800M12.5X35 Datasheet

DirectRFQ

EEU-FR1V182L

Panasonic Electronic ComponentsIn Stock: 8348EEU-FR1V182L Datasheet

DirectRFQ

UHE1V182MHD

NichiconIn Stock: 40967UHE1V182MHD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KY35VB182M12X40LL is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance: 1800 µF (exact match required)
• Voltage Rating: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 10000 Hrs @ 105°C (exact match required)
• Operating Temperature: -40°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.197" (5.00mm) (exact match required)
• Size / Dimension: 0.492" Dia (12.50mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)

All substitute parts listed meet these critical parameters. Variations in secondary parameters such as impedance, ripple current ratings, and height are permitted within the scope of functional equivalence, provided the critical parameters remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs:

The EEU-FR1V182L (Panasonic) and 35ZLJ1800M12.5X35 (Rubycon) are recommended as primary substitutes. Both parts are active in production status and ROHS3 compliant. The EEU-FR1V182L offers the lowest impedance (12 mOhms) and highest ripple current ratings, making it suitable for applications requiring superior high-frequency performance. The 35ZLJ1800M12.5X35 provides a compact height of 37.00mm compared to the original 40.00mm, which may be advantageous for space-constrained PCB layouts.

For Legacy or Existing Designs:

The UHE1V182MHD (Nichicon) is electrically equivalent to the KY35VB182M12X40LL with identical impedance and ripple current characteristics. However, this part is marked as "Not For New Designs" and carries REACH Affected status. Use of this part is limited to maintenance, repair, or replacement of existing assemblies where design changes are not feasible.

Compliance Considerations:

The original KY35VB182M12X40LL is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, making them suitable for applications subject to RoHS directives. Selection should account for regulatory requirements of the target market and end application.

Frequently Asked Questions (FAQ)

Q: Can the EEU-FR1V182L be used as a direct replacement for the KY35VB182M12X40LL?

A: Yes. The EEU-FR1V182L meets all critical electrical and mechanical parameters: 1800 µF capacitance, 35 V rating, ±20% tolerance, 10000 Hrs @ 105°C lifetime, -40°C to 105°C operating range, 5.00mm lead spacing, 12.50mm diameter, and through-hole radial package. The reduced height (37.00mm vs. 40.00mm) is compatible with standard PCB layouts designed for radial capacitors of this class.

Q: What is the difference between the 35ZLJ1800M12.5X35 and EEU-FR1V182L?

A: Both parts are electrically equivalent substitutes. The primary differences are manufacturer (Rubycon vs. Panasonic), impedance (16 mOhms vs. 12 mOhms), and ripple current ratings. The EEU-FR1V182L has superior high-frequency ripple current performance (3.75 A @ 100 kHz vs. 4.12 A @ 100 kHz for the Rubycon part). Height is identical at 37.00mm for both parts.

Q: Why is the UHE1V182MHD marked "Not For New Designs"?

A: The UHE1V182MHD is a legacy product from Nichicon's UHE series. This designation indicates the manufacturer is not recommending this part for new circuit designs. It remains available for replacement and repair of existing assemblies. For new designs, the EEU-FR1V182L or 35ZLJ1800M12.5X35 are preferred alternatives.

Q: Are there any height restrictions when substituting the KY35VB182M12X40LL?

A: The original part has a maximum seated height of 40.00mm. The EEU-FR1V182L and 35ZLJ1800M12.5X35 both have a maximum seated height of 37.00mm, which is shorter. This reduction in height is compatible with standard PCB designs and does not create clearance issues. The UHE1V182MHD maintains the original 40.00mm height.

Q: What is the impact of impedance differences on circuit performance?

A: Impedance variations (12 mOhms to 17 mOhms) among the listed substitutes are within acceptable ranges for general purpose applications. Lower impedance (EEU-FR1V182L at 12 mOhms) provides superior performance in high-frequency filtering and ripple current handling. Selection should be based on specific circuit requirements and ripple current specifications of the application.

Q: Are all substitute parts RoHS compliant?

A: Yes. The EEU-FR1V182L, 35ZLJ1800M12.5X35, and UHE1V182MHD are all ROHS3 compliant. The original KY35VB182M12X40LL is RoHS non-compliant. For applications requiring RoHS compliance, any of the three substitute parts are suitable.