SEK010M160ST Equivalent & Substitute Parts Reference

Part Overview

The SEK010M160ST is a 1 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Active product status and is designed for general-purpose applications requiring polar electrolytic capacitance in through-hole mounting configurations.

Substitute parts become necessary when the primary part reaches end-of-life inventory depletion, when higher voltage ratings are required for circuit margin improvement, or when alternative manufacturer sourcing is needed for supply chain continuity. The parts listed below provide electrical and mechanical compatibility within the specified parameter constraints.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	1	µF	Must match exactly
Voltage - Rated	160	V	Can be upgraded; downgrades not permitted
Tolerance	±20%	%	Must match exactly
Operating Temperature Range	-40°C ~ 105°C	°C	Must match or exceed
Lifetime @ Temperature	2000	Hrs @ 105°C	Must match or exceed
Lead Spacing	0.098" (2.50mm)	inches (mm)	Must match exactly for PCB compatibility
Size / Dimension	0.248" Dia (6.30mm)	inches (mm)	Must match exactly for mechanical fit
Height - Seated (Max)	0.433" (11.00mm)	inches (mm)	Must match exactly for clearance
Mounting Type	Through Hole	-	Must match exactly
Package / Case	Radial, Can	-	Must match exactly
RoHS Status	ROHS3 Compliant	-	Regulatory requirement

Substitute Part Grouping Explanation

Substitution logic for the SEK010M160ST is based on strict parameter matching across the following critical dimensions:

Electrical Parameters (Must Match or Upgrade):

Capacitance: 1 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 160 V minimum (upgrades to 200 V or 250 V permitted)
Operating Temperature: -40°C ~ 105°C (exact match required)
Lifetime: 2000 Hrs @ 105°C (exact match or longer acceptable)

Mechanical Parameters (Must Match Exactly):

Lead Spacing: 0.098" (2.50mm)
Diameter: 0.248" (6.30mm)
Height: 0.433" (11.00mm)
Mounting Type: Through Hole
Package: Radial, Can

Compliance Parameters:

RoHS3 Compliant (required)
REACH Unaffected (required)

Substitute parts are grouped into two categories: parametric equivalents (identical voltage rating) and upgrade substitutes (higher voltage rating with identical mechanical footprint).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage (V)	Tolerance	ESR @ 120Hz	Lifetime @ 105°C	Temp Range	Lead Spacing	Diameter	Height	Product Status	Inventory
SEK010M160ST	Cornell Dubilier Electronics	1 µF	160	±20%	199.04 Ω	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Active	1110 Pcs
UPW2C010MED	Nichicon	1 µF	160	±20%	Not specified	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	2742 Pcs
SEK010M200ST	Cornell Dubilier Electronics	1 µF	200	±20%	199.04 Ω	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Active	10564 Pcs
UPW2D010MED	Nichicon	1 µF	200	±20%	Not specified	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	1819 Pcs
SEK010M250ST	Cornell Dubilier Electronics	1 µF	250	±20%	199.04 Ω	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Active	696 Pcs
517D105M250AA6AE3	Vishay Sprague	1 µF	250	±20%	Not specified	2000 Hrs	-40 ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	940 Pcs

Engineering Selection Recommendations

Primary Selection (Active Status):

SEK010M200ST is the recommended upgrade substitute. It maintains identical mechanical dimensions, lead spacing, and thermal characteristics as the SEK010M160ST while providing a 25% increase in voltage rating (200 V vs. 160 V). This part carries Active product status from Cornell Dubilier Electronics, ensuring continued availability and manufacturing support. The higher voltage rating provides additional circuit margin without requiring PCB redesign. Inventory availability is substantial at 10,564 units.

Secondary Selection (Active Status):

SEK010M250ST offers maximum voltage headroom at 250 V with identical mechanical and electrical specifications. This part is suitable for applications requiring enhanced voltage margin. Active product status is maintained. Inventory is more limited at 696 units.

Parametric Equivalent (Obsolete Status):

UPW2C010MED provides exact electrical and mechanical equivalence at 160 V. This Nichicon part is classified as Obsolete and should be selected only when voltage upgrade is not feasible and inventory depletion of the primary part is imminent. Inventory availability is 2,742 units.

Upgrade Alternatives (Obsolete Status):

UPW2D010MED (200 V) and 517D105M250AA6AE3 (250 V) are obsolete alternatives from Nichicon and Vishay Sprague respectively. These parts maintain mechanical compatibility but carry obsolete status. Selection should be limited to applications where supply continuity from active manufacturers cannot be achieved.

Compliance Verification:

All listed substitutes maintain ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for the SEK010M160ST application space.

Frequently Asked Questions (FAQ)

Q: Can SEK010M200ST be used as a direct replacement for SEK010M160ST?

A: Yes. SEK010M200ST is mechanically and electrically compatible. The 200 V rating is a voltage upgrade that does not affect circuit operation in applications designed for 160 V. All mechanical dimensions, lead spacing, capacitance, tolerance, and thermal characteristics are identical.

Q: What is the difference between parametric equivalents and upgrade substitutes?

A: Parametric equivalents (such as UPW2C010MED) match all electrical specifications including voltage rating. Upgrade substitutes (such as SEK010M200ST) maintain identical capacitance, tolerance, and mechanical form factor but provide higher voltage ratings. Upgrades are suitable for all applications designed for the lower voltage rating.

Q: Are obsolete parts suitable for new designs?

A: Obsolete parts such as UPW2C010MED, UPW2D010MED, and 517D105M250AA6AE3 should not be selected for new product designs. These parts are appropriate only for legacy system repairs or when active alternatives are unavailable. Active status parts (SEK series from Cornell Dubilier) are recommended for all new applications.

Q: Does the voltage upgrade affect PCB layout or component placement?

A: No. All substitute parts listed maintain identical mechanical dimensions: 0.248" diameter, 0.433" maximum height, and 0.098" lead spacing. PCB footprints, mounting holes, and clearance requirements remain unchanged.

Q: What is the significance of ESR (Equivalent Series Resistance) in substitution?

A: ESR affects ripple current handling and heat dissipation. Cornell Dubilier SEK series parts specify 199.04 Ω ESR @ 120 Hz. Nichicon and Vishay parts do not provide ESR specifications in the available data. For applications with high ripple current requirements, the specified ESR value of the SEK series should be verified against circuit requirements.

Q: Can these parts be used in surface mount applications?

A: No. All listed parts are through-hole mounted radial can capacitors. Surface mount land size is not specified for any part in this group. Surface mount alternatives require separate component selection.

Q: What inventory considerations apply to substitute selection?

A: SEK010M200ST offers the highest inventory availability at 10,564 units, supporting high-volume production. SEK010M250ST has limited inventory at 696 units. Obsolete parts have fixed inventory with no replenishment capability. For production planning, SEK010M200ST is the most reliable long-term source.

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