ECA-2CHG2R2 Equivalent & Substitute Parts

Part Overview

The ECA-2CHG2R2 is a 2.2 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with ROHS3 compliance.

Substitute parts become necessary when the original ECA-2CHG2R2 reaches end-of-life status, inventory depletion, or when design requirements allow for higher voltage ratings or improved performance characteristics within the same physical and electrical envelope.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)
Height (Seated Max)	0.480" (12.20 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ECA-2CHG2R2 is determined by the following criteria:

Primary Substitution Parameters:

Capacitance: 2.2 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 160 V minimum (equal or higher voltage ratings are acceptable)
Lead Spacing: 0.098" (2.50 mm) (exact match required)
Case Diameter: 0.248" (6.30 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lifetime: 2000 Hrs @ 105°C minimum (equal or longer lifetimes are acceptable)

Acceptable Variations:

Voltage rating may be increased above 160 V for direct substitution
Operating temperature range may be extended (e.g., -40°C ~ 105°C)
Height may vary slightly within mechanical constraints
Ripple current specifications may differ based on manufacturer design

The substitute parts listed below meet these criteria and are electrically and mechanically compatible with the ECA-2CHG2R2.

Parameter Comparison

Parameter	ECA-2CHG2R2	ECA-2EHG2R2	225CKH250M	UPW2C2R2MED	UPW2D2R2MED
Manufacturer	Panasonic	Panasonic	Cornell Dubilier / Illinois Capacitor	Nichicon	Nichicon
Capacitance	2.2 µF	2.2 µF	2.2 µF	2.2 µF	2.2 µF
Voltage Rating	160 V	250 V	250 V	160 V	200 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)	0.248" (6.30 mm)	0.248" (6.30 mm)	0.248" (6.30 mm)	0.248" (6.30 mm)
Height (Seated Max)	0.480" (12.20 mm)	0.480" (12.20 mm)	0.492" (12.50 mm)	0.433" (11.00 mm)	0.433" (11.00 mm)
Ripple Current @ 120 Hz	25 mA	29 mA	29 mA	25 mA	25 mA
Ripple Current @ High Frequency	37.5 mA @ 100 kHz	44.6 mA @ 100 kHz	72.5 mA @ 100 kHz	40 mA @ 10 kHz	40 mA @ 10 kHz
Product Status	Active	Active	Active	Obsolete	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ECA-2EHG2R2 (Panasonic): Direct upgrade within the same manufacturer family. Identical physical dimensions and operating characteristics to the ECA-2CHG2R2, with increased voltage rating of 250 V. Active product status with full ROHS3 compliance. Recommended for new designs and long-term availability assurance.

225CKH250M (Cornell Dubilier / Illinois Capacitor): Functionally equivalent with 250 V voltage rating. Active product status with ROHS3 compliance. Height specification of 0.492" (12.50 mm) is marginally higher than the original 0.480" (12.20 mm); verify PCB layout clearance before selection. Higher ripple current capability at 100 kHz (72.5 mA) compared to the original specification.

UPW2C2R2MED (Nichicon): Electrical equivalent at 160 V rating with identical physical footprint to the ECA-2CHG2R2. Extended operating temperature range of -40°C ~ 105°C. Product status is obsolete; use only when inventory is available and long-term supply is not required.

UPW2D2R2MED (Nichicon): Electrical equivalent with 200 V voltage rating, providing intermediate voltage headroom between the original 160 V and higher-rated alternatives. Extended operating temperature range of -40°C ~ 105°C. Product status is obsolete; use only when inventory is available and long-term supply is not required.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a direct substitute for the ECA-2CHG2R2?

A: Yes. A capacitor with a voltage rating equal to or greater than 160 V is electrically compatible. The ECA-2EHG2R2 (250 V) and 225CKH250M (250 V) are direct substitutes with higher voltage ratings. Higher voltage ratings do not degrade performance in circuits designed for lower voltages.

Q: What is the difference between the ECA-2EHG2R2 and the ECA-2CHG2R2?

A: Both parts are manufactured by Panasonic with identical physical dimensions, capacitance, tolerance, and lifetime specifications. The primary difference is the voltage rating: ECA-2CHG2R2 is rated at 160 V, while ECA-2EHG2R2 is rated at 250 V. The ECA-2EHG2R2 is the recommended upgrade path.

Q: Are the Nichicon UPW series parts suitable for new designs?

A: The UPW2C2R2MED and UPW2D2R2MED are both marked as obsolete products. These parts are suitable only for replacement or repair of existing equipment where inventory is available. For new designs, select from active products: ECA-2EHG2R2 or 225CKH250M.

Q: Does the height difference between substitute parts affect PCB compatibility?

A: Physical dimensions must be verified against PCB layout constraints. The ECA-2CHG2R2 and ECA-2EHG2R2 have identical heights of 0.480" (12.20 mm). The 225CKH250M has a maximum height of 0.492" (12.50 mm), which is 0.012" taller. The Nichicon parts (UPW2C2R2MED and UPW2D2R2MED) are shorter at 0.433" (11.00 mm). Confirm clearance before substitution.

Q: What is the significance of the lead spacing specification?

A: Lead spacing of 0.098" (2.50 mm) is a critical parameter for PCB hole pattern compatibility. All listed substitute parts maintain this specification, ensuring direct mechanical compatibility with existing through-hole PCB designs.

Q: Can I substitute the ECA-2CHG2R2 with a part rated at a lower voltage?

A: No. Substitution with a lower voltage-rated capacitor is not permitted. The circuit design is based on the 160 V minimum rating. Using a lower-rated part creates risk of capacitor failure and circuit malfunction.

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