EEU-FC1H3R3H Equivalent & Substitute Parts

Part Overview

The EEU-FC1H3R3H is a 3.3 µF, 50 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the FC series. This radial, through-hole component is rated for 1000 hours at 105°C and meets AEC-Q200 automotive specifications. The part is currently active in production with 1937 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements allow for alternative manufacturers or packaging configurations while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	3.3 µF
Voltage Rating	50 V
Tolerance	±20%
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Operating Temperature Range	-55°C to 105°C
Lifetime @ Temperature	1000 Hrs @ 105°C
Lead Spacing	0.098" (2.50mm)
Diameter	0.197" (5.00mm)
Height	0.472" (12.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1H3R3H is determined by the following criteria:

Electrical Parameters (Must Match):

Capacitance: 3.3 µF
Voltage Rating: 50 V
Tolerance: ±20%
Polarization: Polar

Mechanical Parameters (Must Match or Be Compatible):

Mounting Type: Through Hole
Package Type: Radial, Can
Diameter: 0.197" (5.00mm)
Operating Temperature Range: -55°C to 105°C

Allowable Variations:

Lead Spacing: 0.079" (2.00mm) acceptable as alternative pitch
Height: Up to 0.492" (12.50mm) acceptable
Lifetime @ Temperature: Equal to or greater than 1000 Hrs @ 105°C
Impedance: Variation acceptable within electrical performance envelope
Ripple Current: Variation acceptable within electrical performance envelope

Compliance Requirements:

RoHS3 Compliant (mandatory)
REACH Unaffected (maintained)

Parameter Comparison

Parameter	EEU-FC1H3R3H (Main)	EEU-FC1H3R3	UPM1H3R3MDD	UPS1H3R3MDD	UPW1H3R3MDD
Manufacturer	Panasonic	Panasonic	Nichicon	Nichicon	Nichicon
Capacitance	3.3 µF	3.3 µF	3.3 µF	3.3 µF	3.3 µF
Voltage Rating	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	1000 Hrs	1000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lead Spacing	0.098" (2.50mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Diameter	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Height	0.472" (12.00mm)	0.472" (12.00mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.433" (11.00mm)
Impedance	1.3 Ohms	1.3 Ohms	3.3 Ohms	3.9 Ohms	2.6 Ohms
Ripple Current @ 120 Hz	42.25 mA	42.25 mA	33 mA	11.05 mA	19.5 mA
Ripple Current @ 100 kHz	65 mA	65 mA	Not specified	65 mA	65 mA
Product Status	Active	Active	Obsolete	Obsolete	Obsolete
Ratings	AEC-Q200	AEC-Q200	AEC-Q200	Not specified	Not specified
Applications	Automotive	Automotive	Automotive	General Purpose	General Purpose
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Cut Tape (CT)	Bulk	Bulk	Bulk	Bulk
Inventory	1937 Pcs	5015 Pcs	1053 Pcs	4182 Pcs	6030 Pcs

Engineering Selection Recommendations

EEU-FC1H3R3 (Panasonic FC Series)

This is the primary substitute for the EEU-FC1H3R3H. Both parts are from the same manufacturer and series with identical electrical specifications and operating temperature range. The only difference is lead spacing (0.079" vs 0.098") and packaging format (Bulk vs Cut Tape). Both maintain AEC-Q200 automotive rating and ROHS3 compliance. This substitute is suitable for direct replacement in automotive applications where the PCB layout accommodates the tighter lead spacing.

UPM1H3R3MDD (Nichicon UPM Series)

This Nichicon part meets all electrical requirements with identical capacitance, voltage, and tolerance. It provides extended lifetime (2000 Hrs @ 105°C vs 1000 Hrs), maintaining AEC-Q200 automotive certification and ROHS3 compliance. The part is obsolete but currently in stock. Lead spacing is 0.079" (2.00mm) and height is 0.492" (12.50mm). Selection requires PCB layout compatibility with these mechanical dimensions.

UPS1H3R3MDD (Nichicon UPS Series)

This Nichicon part matches electrical specifications but is rated for general purpose applications rather than automotive. It is obsolete and lacks AEC-Q200 certification. Lifetime is 2000 Hrs @ 105°C. Lead spacing is 0.079" (2.00mm) and height is 0.492" (12.50mm). This substitute is suitable only for non-automotive applications where AEC-Q200 is not required.

UPW1H3R3MDD (Nichicon UPW Series)

This Nichicon part meets electrical requirements with 2000 Hrs @ 105°C lifetime. It is obsolete and rated for general purpose applications without AEC-Q200 certification. Lead spacing is 0.079" (2.00mm) and height is 0.433" (11.00mm), the most compact option. This substitute is suitable only for non-automotive applications where AEC-Q200 is not required.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1H3R3 directly replace EEU-FC1H3R3H?

A: Yes, with PCB layout verification. Both parts have identical electrical specifications, operating temperature range, and automotive ratings. The difference is lead spacing: EEU-FC1H3R3H uses 0.098" (2.50mm) while EEU-FC1H3R3 uses 0.079" (2.00mm). The PCB footprint must accommodate the tighter spacing.

Q: Are Nichicon parts suitable for automotive applications?

A: UPM1H3R3MDD maintains AEC-Q200 certification and is suitable for automotive use. UPS1H3R3MDD and UPW1H3R3MDD lack AEC-Q200 certification and are rated for general purpose applications only. Use in automotive designs requires design review and approval.

Q: What is the impact of different lead spacing?

A: Lead spacing affects PCB footprint compatibility. The main part uses 0.098" (2.50mm) spacing, while all substitute parts use 0.079" (2.00mm). The PCB layout must be verified to accommodate the selected part's lead spacing. Incorrect spacing will result in assembly failure.

Q: Why do some substitutes have higher lifetime ratings?

A: UPM1H3R3MDD, UPS1H3R3MDD, and UPW1H3R3MDD are rated for 2000 Hrs @ 105°C compared to 1000 Hrs for the main part. This indicates longer expected operational life under thermal stress. Higher lifetime ratings do not affect electrical compatibility but may provide improved reliability in high-temperature environments.

Q: What does "Obsolete" product status mean?

A: Obsolete status indicates the manufacturer has discontinued production. UPM1H3R3MDD, UPS1H3R3MDD, and UPW1H3R3MDD are no longer manufactured but remain available from existing inventory. Long-term availability is not guaranteed.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts, including the main part and all substitutes, are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Q: How do impedance differences affect circuit performance?

A: Impedance variation is acceptable within the electrical performance envelope for this capacitor category. The main part has 1.3 Ohms impedance while substitutes range from 2.6 to 3.9 Ohms. Circuit performance impact depends on application frequency and ripple current requirements. Verify impedance compatibility with your specific circuit design.

Q: Can I use UPS1H3R3MDD or UPW1H3R3MDD in place of the main part?

A: Only if your application does not require AEC-Q200 automotive certification. These parts are rated for general purpose use and lack automotive qualification. They are electrically compatible but not approved for automotive designs.

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