UAS2D101MHD6 Equivalent & Substitute Parts

Part Overview

The UAS2D101MHD6 is a 100 µF, 200 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is classified as Active product status. Substitute parts are necessary when the original part becomes unavailable, when design requirements demand extended operational lifetime, higher voltage ratings, or improved ripple current handling capabilities.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50mm)
Diameter	0.630" (16.00mm)
Height (Max)	0.866" (22.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Substitutes maintain identical electrical specifications (100 µF, 200 V, ±20% tolerance) and mechanical compatibility (lead spacing 0.295", diameter 0.630", through-hole mounting). These parts differ only in series designation and operational lifetime.

Upgrade Substitutes increase voltage rating to 250 V while maintaining 100 µF capacitance and ±20% tolerance. These provide enhanced voltage margin and are mechanically compatible with the original footprint.

Similar Substitutes maintain core electrical parameters (100 µF, 200 V, ±20% tolerance) but differ in mechanical dimensions (lead spacing and/or diameter), requiring PCB layout verification before implementation.

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Diameter	Height (Max)	Product Status	Ripple Current @ 120 Hz	Ripple Current @ 10 kHz / 100 kHz
UAS2D101MHD6	UAS	100 µF	200 V	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.866" (22.00mm)	Active	430 mA	688 mA @ 10 kHz
UCS2D101MHD	UCS	100 µF	200 V	10000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.846" (21.50mm)	Active	710 mA	1.42 A @ 100 kHz
UCY2E101MHD	UCY	100 µF	250 V	12000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.846" (21.50mm)	Active	715 mA	1.43 A @ 100 kHz
UCS2D101MND9	UCS	100 µF	200 V	10000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.654" (42.00mm)	Active	630 mA	1.26 A @ 100 kHz
UCY2D101MHD	UCY	100 µF	200 V	12000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	Active	695 mA	1.39 A @ 100 kHz
UCY2D101MHD3	UCY	100 µF	200 V	12000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.846" (21.50mm)	Active	710 mA	1.42 A @ 100 kHz
UPJ2D101MHD	UPJ	100 µF	200 V	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.634" (41.50mm)	Obsolete	345 mA	Not specified
UPW2D101MHD	UPW	100 µF	200 V	8000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.240" (31.50mm)	Obsolete	335 mA	Not specified
URZ2D101MHD	URZ	100 µF	200 V	1000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.043" (26.50mm)	Active	420 mA	Not specified
UVY2D101MHD	UVY	100 µF	200 V	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs	320 mA	368 mA @ 10 kHz
UVZ2D101MHD	UVZ	100 µF	200 V	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.299" (33.00mm)	Not For New Designs	375 mA	600 mA @ 10 kHz

Engineering Selection Recommendations

For Direct Replacement with Enhanced Reliability: UCS2D101MHD is the primary direct substitute. It maintains identical electrical and mechanical specifications while providing 5× extended operational lifetime (10000 hours versus 2000 hours at 105°C). Both parts are Active status and ROHS3 compliant. This part is suitable for applications requiring improved long-term reliability without design modification.

For Voltage Margin Enhancement: UCY2E101MHD provides 250 V rating with 100 µF capacitance, maintaining mechanical compatibility with the original footprint. This upgrade option extends voltage margin by 25% and provides 12000-hour lifetime at 105°C. REACH status differs (Affected versus Unaffected); verify compliance requirements before selection.

For Mechanical Footprint Verification Required: UCS2D101MND9, UCY2D101MHD, and UCY2D101MHD3 maintain electrical specifications but alter lead spacing and/or physical dimensions. These require PCB layout confirmation to ensure mechanical fit. All three are Active status and ROHS3 compliant.

Obsolete Parts Not Recommended for New Designs: UPJ2D101MHD and UPW2D101MHD carry Obsolete product status. UVY2D101MHD and UVZ2D101MHD are marked Not For New Designs. These parts should be avoided in new circuit designs due to supply discontinuation risk.

Lower Lifetime Alternative: URZ2D101MHD provides 1000-hour lifetime at 105°C (50% of original specification) and is Active status. This part is suitable only for applications with reduced operational lifetime requirements.

Frequently Asked Questions (FAQ)

Q: Can UCS2D101MHD be used as a direct drop-in replacement for UAS2D101MHD6? A: Yes. Both parts share identical capacitance (100 µF), voltage rating (200 V), tolerance (±20%), lead spacing (0.295"), diameter (0.630"), and through-hole mounting. The primary difference is operational lifetime: UCS2D101MHD provides 10000 hours at 105°C versus 2000 hours for the original part. Physical height differs slightly (0.846" versus 0.866"), which does not affect PCB compatibility.

Q: What is the difference between UCS2D101MHD and UCY2D101MHD3? A: Both parts provide 100 µF at 200 V with 12000-hour lifetime at 105°C and identical mechanical dimensions (0.295" lead spacing, 0.630" diameter, 0.846" height). The primary distinction is series designation (UCS versus UCY) and REACH compliance status (Unaffected versus Affected). Electrical performance and physical compatibility are equivalent.

Q: Can UCY2E101MHD replace UAS2D101MHD6 in a 200 V circuit? A: Yes, with design margin improvement. UCY2E101MHD is rated 250 V, providing 25% voltage headroom above the 200 V circuit requirement. Mechanical compatibility is maintained (identical lead spacing and diameter). This substitution is suitable when enhanced voltage margin is beneficial. Verify REACH compliance requirements for your application.

Q: Why do UCS2D101MND9 and UCY2D101MHD have different physical dimensions? A: These parts maintain identical electrical specifications (100 µF, 200 V) but employ different mechanical designs. UCS2D101MND9 uses 0.197" lead spacing with 0.394" diameter and 1.654" height. UCY2D101MHD uses 0.197" lead spacing with 0.492" diameter and 1.043" height. Both require PCB layout verification before implementation to confirm mechanical fit.

Q: Should obsolete parts like UPJ2D101MHD be used in new designs? A: No. Parts marked Obsolete or Not For New Designs carry supply discontinuation risk and should not be selected for new circuit development. UCS2D101MHD, UCY2D101MHD3, and UCY2E101MHD are Active status alternatives with superior availability and extended operational lifetime.

Q: What is the ripple current significance when selecting a substitute? A: Ripple current capacity determines the maximum AC current the capacitor can handle without exceeding temperature limits. UCS2D101MHD provides 710 mA at 120 Hz and 1.42 A at 100 kHz, compared to UAS2D101MHD6 at 430 mA and 688 mA respectively. Higher ripple current capability provides design margin for applications with significant AC current content.

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