UPW1C821MPD Equivalent & Substitute Parts

Part Overview

The UPW1C821MPD is a 820 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is classified as not for new designs. Due to its discontinued status and limited availability in certain applications, equivalent substitute parts from active product lines are available to maintain circuit functionality and performance.

Key Parameters

Parameter	Value
Capacitance	820 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Lead Spacing	0.197" (5.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UPW1C821MPD is determined by strict electrical and mechanical compatibility criteria:

Electrical Parameters (Must Match):

Capacitance: 820 µF
Voltage Rating: 16 V
Tolerance: ±20%
Operating Temperature Range: -55°C ~ 105°C
Polarization: Polar

Mechanical Parameters (Must Match):

Lead Spacing: 0.197" (5.00 mm)
Package Type: Radial, Can
Mounting Type: Through Hole

Performance Parameters (Allowable Variation):

Lifetime @ 105°C: 3000 Hrs minimum (UPW1C821MPD specifies 5000 Hrs)
Impedance: Variation acceptable within electrical performance envelope
Ripple Current: Variation acceptable if rated values meet or exceed circuit requirements
Physical Dimensions: Variation acceptable if lead spacing and mounting compatibility maintained

Substitute parts are grouped into two categories: direct equivalents from Nichicon (UPJ and UPM series) and cross-manufacturer equivalents from Panasonic and Chemi-Con that meet all electrical and mechanical criteria.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Size Dia	Height (Max)	Impedance	Product Status	Ratings
UPW1C821MPD	Nichicon	820 µF	16 V	±20%	5000 Hrs	0.394" (10.00 mm)	0.787" (20.00 mm)	52 mOhms	Not For New Designs	—
UPJ1C821MHD6	Nichicon	820 µF	16 V	±20%	5000 Hrs	0.492" (12.50 mm)	0.650" (16.50 mm)	96 mOhms	Not For New Designs	—
UPM1C821MHD6	Nichicon	820 µF	16 V	±20%	5000 Hrs	0.492" (12.50 mm)	0.669" (17.00 mm)	60 mOhms	Not For New Designs	AEC-Q200
UPM1C821MPD	Nichicon	820 µF	16 V	±20%	5000 Hrs	0.394" (10.00 mm)	1.063" (27.00 mm)	55 mOhms	Not For New Designs	AEC-Q200
EEU-FC1C821	Panasonic	820 µF	16 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.787" (20.00 mm)	52 mOhms	Active	AEC-Q200
EEU-FC1C821B	Panasonic	820 µF	16 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	52 mOhms	Active	AEC-Q200
EEU-FC1C821S	Panasonic	820 µF	16 V	±20%	5000 Hrs	0.492" (12.50 mm)	0.591" (15.00 mm)	65 mOhms	Active	AEC-Q200
EEU-FC1C821SB	Panasonic	820 µF	16 V	±20%	5000 Hrs	0.492" (12.50 mm)	0.630" (16.00 mm)	65 mOhms	Active	AEC-Q200
ELXY160ELL821MJ25S	Chemi-Con	820 µF	16 V	±20%	5000 Hrs	0.394" (10.00 mm)	1.043" (26.50 mm)	52 mOhms	Active	AEC-Q200

Engineering Selection Recommendations

For General Purpose Applications: EEU-FC1C821 (Panasonic) is the primary substitute. It maintains identical electrical specifications, matching impedance (52 mOhms), and identical physical footprint (0.394" diameter, 0.197" lead spacing). Product status is Active with AEC-Q200 certification. The 3000-hour lifetime at 105°C is lower than the original 5000 hours; applications requiring extended thermal endurance should select EEU-FC1C821S or EEU-FC1C821SB.

For Automotive Applications with Extended Thermal Life: EEU-FC1C821S or EEU-FC1C821SB (Panasonic) provide 5000-hour lifetime at 105°C with AEC-Q200 rating. Physical dimensions differ (0.492" diameter, 0.591"–0.630" height); PCB layout accommodation is required. Impedance is 65 mOhms, within acceptable performance envelope.

For Automotive Applications with Compact Form Factor: ELXY160ELL821MJ25S (Chemi-Con) maintains the 0.394" diameter footprint with 5000-hour lifetime and AEC-Q200 certification. Height is 1.043", requiring vertical clearance verification. Impedance matches the original at 52 mOhms.

For Nichicon-Only Supply Chains: UPM1C821MPD maintains the original 0.394" diameter with AEC-Q200 automotive rating and 5000-hour lifetime. Height increases to 1.063"; vertical clearance must be confirmed. Impedance is 55 mOhms.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1C821 (3000-hour lifetime) replace UPW1C821MPD (5000-hour lifetime)? A: Yes, for applications where the circuit does not require extended thermal endurance beyond 3000 hours at 105°C. If the original design specified 5000-hour lifetime for margin or long-term reliability, select EEU-FC1C821S or EEU-FC1C821SB instead.

Q: Are there physical dimension constraints with substitute parts? A: Yes. UPW1C821MPD has a 0.394" diameter and 0.787" height. EEU-FC1C821 and EEU-FC1C821B match this footprint. EEU-FC1C821S, EEU-FC1C821SB, and UPJ1C821MHD6 use 0.492" diameter. ELXY160ELL821MJ25S and UPM1C821MPD have increased heights (1.043" and 1.063" respectively). PCB layout must accommodate these variations.

Q: What is the difference between EEU-FC1C821 and EEU-FC1C821B? A: Both are electrically identical 820 µF, 16 V capacitors with 3000-hour lifetime and AEC-Q200 rating. The primary difference is packaging: EEU-FC1C821 is supplied in Bulk, while EEU-FC1C821B is supplied in Tape & Box (TB). Height also differs slightly (0.787" vs. 0.866"). Select based on procurement and assembly requirements.

Q: Can I use parts with different impedance values? A: Impedance variation is acceptable if the substitute part's impedance meets or is lower than circuit requirements. UPW1C821MPD has 52 mOhms impedance. Substitutes with 52–65 mOhms are compatible. UPJ1C821MHD6 at 96 mOhms may introduce higher ripple voltage; circuit analysis is required.

Q: Are all substitute parts RoHS3 and REACH compliant? A: Yes. All listed substitutes are ROHS3 Compliant. REACH status varies: Nichicon UPW, UPJ, and Panasonic EEU-FC series are REACH Unaffected. Nichicon UPM series and Chemi-Con ELXY are REACH Affected. Verify compliance requirements for your application.

Q: Which substitute has the best long-term availability? A: Panasonic EEU-FC1C821 and EEU-FC1C821S are Active products with the highest inventory levels (9586 and 2793 units respectively). Nichicon UPW and UPJ series are Not For New Designs, indicating limited future availability.

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