EET-HC2W151KA Equivalent & Substitute Parts

Part Overview

The EET-HC2W151KA is a 150 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations. The TS-HC series offers general-purpose applications with rated specifications of 1.216 Ohm ESR at 120 Hz and 2000 hours lifetime at 105°C operating temperature.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	450 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	1.181" Dia (30.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)
Operating Temperature	-25°C ~ 105°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the EET-HC2W151KA is determined by strict electrical and mechanical parameter matching:

Core Substitution Criteria:

Capacitance: 150 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Size / Dimension: 1.181" Dia (30.00 mm) (exact match required)
Height - Seated (Max): 1.063" (27.00 mm) or 1.071" (27.20 mm) (within tolerance)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed meet these core electrical and mechanical parameters. Variations in ESR, ripple current ratings, lifetime specifications, and operating temperature ranges do not disqualify substitution when core parameters align.

Parameter Comparison

Parameter	EET-HC2W151KA (Main)	B43508C5157M Series (EPCOS)	ELXQ451VSN151MR25S (Chemi-Con)
Manufacturer	Panasonic Electronic Components	EPCOS - TDK Electronics	Chemi-Con
Capacitance	150 µF	150 µF	150 µF
Voltage Rating	450 V	450 V	450 V
Tolerance	±20%	±20%	±20%
ESR @ Rated Frequency	1.216 Ohm @ 120 Hz	820 mOhm @ 100 Hz	Not specified
Lifetime @ 105°C	2000 Hrs	3000 Hrs	5000 Hrs
Operating Temperature	-25°C ~ 105°C	-40°C ~ 105°C	-25°C ~ 105°C
Ripple Current @ 120 Hz	790 mA	880 mA @ 100 Hz	930 mA @ 120 Hz
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension	1.181" Dia (30.00 mm)	1.181" Dia (30.00 mm)	1.181" Dia (30.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)	1.063" - 1.071" (27.00 - 27.20 mm)	1.063" (27.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

EPCOS B43508C5157M Series (Multiple Variants)

The B43508C5157M series from EPCOS - TDK Electronics provides direct electrical and mechanical equivalence to the EET-HC2W151KA. All variants within this series (B43508C5157M, B43508C5157M2, B43508C5157M60, B43508C5157M62, B43508C5157M67, B43508C5157M7, B43508C5157M80, B43508C5157M82, B43508C5157M87) maintain identical core specifications with active product status and ROHS3 compliance. The extended operating temperature range (-40°C to 105°C) provides additional thermal margin compared to the original part. Improved ESR characteristics (820 mOhm @ 100 Hz versus 1.216 Ohm @ 120 Hz) and extended lifetime (3000 hours @ 105°C) offer performance enhancement. Height variations between 1.063" and 1.071" remain within acceptable mechanical tolerances for snap-in mounting applications.

Chemi-Con ELXQ451VSN151MR25S

The ELXQ451VSN151MR25S from Chemi-Con LXQ series delivers equivalent electrical and mechanical specifications with active product status and RoHS compliance. This option provides the longest rated lifetime at 5000 hours @ 105°C, suitable for applications requiring extended operational reliability. Operating temperature range matches the original part (-25°C to 105°C). Ripple current capability at 120 Hz (930 mA) exceeds the original specification (790 mA), supporting higher current applications.

Frequently Asked Questions (FAQ)

Q: Can I use B43508C5157M series parts interchangeably with each other?

A: Yes. All B43508C5157M variants meet identical electrical and mechanical specifications. Suffix designations indicate manufacturing date codes or internal tracking only and do not affect functional performance or compatibility.

Q: What is the primary difference between EPCOS and Chemi-Con substitutes?

A: Both manufacturers provide equivalent core specifications (150 µF, 450 V, ±20%, snap-in package). The EPCOS B43508 series offers 3000-hour lifetime at 105°C with lower ESR. The Chemi-Con ELXQ series provides 5000-hour lifetime at 105°C. Selection depends on application lifetime requirements and thermal stress conditions.

Q: Are there mechanical clearance concerns with the height variation in B43508C5157M80, B43508C5157M82, and B43508C5157M87?

A: Height variations range from 1.063" to 1.071" (27.00 to 27.20 mm), representing a 0.008" (0.20 mm) difference. This variation is within standard mechanical tolerances for snap-in mounting applications and does not affect PCB layout compatibility for through-hole designs.

Q: Do all substitute parts meet current compliance standards?

A: Yes. EPCOS B43508C5157M series parts are ROHS3 compliant. Chemi-Con ELXQ451VSN151MR25S is RoHS compliant. Both manufacturers' parts are REACH unaffected or REACH affected as specified, meeting current regulatory requirements.

Q: Can I substitute the EET-HC2W151KA in existing designs without circuit modification?

A: Yes. All substitute parts maintain identical capacitance (150 µF), voltage rating (450 V), tolerance (±20%), package type (radial snap-in), lead spacing (10.00 mm), and mounting configuration (through-hole). Direct substitution is mechanically and electrically compatible without design changes.

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