MALREKB00JS310N00K Equivalent & Substitute Parts

Part Overview

The MALREKB00JS310N00K is a 100 µF, 250 V aluminum electrolytic capacitor in radial, can package manufactured by Vishay Beyschlag/Draloric/BC Components from the EKB series. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	100 µF
Tolerance	±20%
Voltage - Rated	250 V
ESR (Equivalent Series Resistance)	1.99 Ohm @ 120 Hz
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.295" (7.50 mm)
Size / Dimension	0.630" Dia (16.00 mm)
Height - Seated (Max)	1.319" (34.60 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Capacitance: 100 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage - Rated: 250 V minimum (equal or higher voltage rating acceptable)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Size / Dimension: 0.630" Dia (16.00 mm) (exact match required)
Height - Seated (Max): 1.319" (34.60 mm) or 1.299" (33.00 mm) (within tolerance)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)

Substitute parts are classified into two categories:

Direct Substitutes: Parts matching all critical parameters including 250 V rated voltage, identical physical dimensions, and compatible electrical characteristics.

Upgrade Substitutes: Parts exceeding the original specifications in voltage rating, lifetime, or ripple current capability while maintaining identical physical form factor and mounting compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage (V)	Lifetime @ 105°C	ESR @ 120 Hz	Lead Spacing	Height (Max)	Status
MALREKB00JS310N00K	Vishay Beyschlag	100 µF	±20%	250	2000 Hrs	1.99 Ohm	0.295" (7.50 mm)	1.319" (34.60 mm)	Obsolete
MAL214251013E3	Vishay Beyschlag	100 µF	±20%	250	2500 Hrs	—	0.295" (7.50 mm)	1.319" (34.60 mm)	Active
MAL214261013E3	Vishay Beyschlag	100 µF	±20%	250	2500 Hrs	—	0.295" (7.50 mm)	1.319" (34.60 mm)	Active
B43851K2107M000	EPCOS - TDK Electronics	100 µF	±20%	250	3000 Hrs	1.8 Ohm	0.295" (7.50 mm)	1.319" (34.60 mm)	Active
EKMG251ELL101MLN3S	Chemi-Con	100 µF	±20%	250	2000 Hrs	—	0.295" (7.50 mm)	1.299" (33.00 mm)	Active
420QXW100MEFR16X31.5	Rubycon	100 µF	±20%	420	2000 Hrs	—	0.295" (7.50 mm)	1.319" (34.60 mm)	Active
B43858F2107M000	EPCOS - TDK Electronics	100 µF	±20%	250	5000 Hrs	—	0.295" (7.50 mm)	1.319" (34.60 mm)	Active
EKXJ351ELL101MLN3S	Chemi-Con	100 µF	±20%	350	12000 Hrs	—	0.295" (7.50 mm)	1.299" (33.00 mm)	Active
UCY2V101MHD	Nichicon	100 µF	±20%	350	12000 Hrs	—	0.295" (7.50 mm)	1.299" (33.00 mm)	Active

Engineering Selection Recommendations

Direct Substitutes (250 V Rating):

MAL214251013E3, MAL214261013E3, B43851K2107M000, and EKMG251ELL101MLN3S are direct functional replacements for MALREKB00JS310N00K. All maintain the 250 V rated voltage, 100 µF capacitance, ±20% tolerance, and through-hole radial can package. These parts are active products with ROHS3 compliance and REACH compliance status consistent with the original part. B43851K2107M000 offers improved lifetime (3000 hours versus 2000 hours) and lower ESR (1.8 Ohm versus 1.99 Ohm) at equivalent voltage rating.

Upgrade Substitutes (Higher Voltage Rating):

420QXW100MEFR16X31.5 (Rubycon, 420 V) and EKXJ351ELL101MLN3S (Chemi-Con, 350 V) and UCY2V101MHD (Nichicon, 350 V) provide voltage ratings exceeding the original 250 V specification. These parts maintain identical physical dimensions and lead spacing, enabling direct board-level replacement. EKXJ351ELL101MLN3S and UCY2V101MHD offer significantly extended lifetime (12000 hours at 105°C) compared to the original 2000-hour rating. B43858F2107M000 (EPCOS - TDK Electronics, 250 V, 5000 Hrs) provides extended lifetime at the original voltage rating.

All substitute parts are active products with ROHS3 compliance and REACH compliance status appropriate for production use.

Frequently Asked Questions (FAQ)

Q: Can MAL214251013E3 or MAL214261013E3 be used as direct replacements for MALREKB00JS310N00K?

A: Yes. Both parts are manufactured by Vishay Beyschlag with identical capacitance (100 µF), tolerance (±20%), voltage rating (250 V), lead spacing (0.295"), and physical dimensions (0.630" diameter, 1.319" height). Both are active products with ROHS3 compliance. MAL214261013E3 offers improved ripple current capability (530 mA @ 100 Hz) compared to the original specification.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes match the original 250 V voltage rating and are functionally equivalent. Upgrade substitutes exceed the original specifications in voltage rating (350 V or 420 V) or lifetime (5000 hours or 12000 hours) while maintaining identical physical form factor and mounting compatibility. Upgrade substitutes are backward-compatible and suitable for applications where the original part is specified.

Q: Can EKXJ351ELL101MLN3S or UCY2V101MHD be used in place of MALREKB00JS310N00K?

A: Yes. Both parts maintain the 100 µF capacitance, ±20% tolerance, 0.295" lead spacing, and radial can package. EKXJ351ELL101MLN3S and UCY2V101MHD provide 350 V rated voltage (exceeding the original 250 V) and 12000-hour lifetime at 105°C (exceeding the original 2000-hour rating). Physical height is 1.299" (33.00 mm) versus the original 1.319" (34.60 mm), a difference of 0.020" within typical PCB tolerance. Both are active products with ROHS3 compliance.

Q: Is B43851K2107M000 a suitable replacement?

A: Yes. B43851K2107M000 is manufactured by EPCOS - TDK Electronics with identical capacitance (100 µF), tolerance (±20%), voltage rating (250 V), lead spacing (0.295"), and physical dimensions (0.630" diameter, 1.319" height). It offers improved specifications: ESR of 1.8 Ohm @ 120 Hz (versus 1.99 Ohm) and extended lifetime of 3000 hours at 105°C (versus 2000 hours). The part is active with ROHS3 compliance.

Q: What is the significance of the height difference between 1.319" and 1.299"?

A: The 0.020" (0.51 mm) height difference is within standard PCB component tolerance and does not affect board-level compatibility. Parts with 1.299" height (EKMG251ELL101MLN3S, EKXJ351ELL101MLN3S, UCY2V101MHD) are suitable for applications where the original 1.319" height part is specified.

Q: Can 420QXW100MEFR16X31.5 be used in circuits designed for 250 V operation?

A: Yes. 420QXW100MEFR16X31.5 is rated for 420 V, which exceeds the original 250 V requirement. Higher voltage-rated capacitors are backward-compatible with lower-voltage circuit specifications. The part maintains identical capacitance (100 µF), tolerance (±20%), lead spacing (0.295"), and physical dimensions (0.630" diameter, 1.319" height). It is an active product with ROHS3 compliance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. REACH compliance status varies: MAL214251013E3, MAL214261013E3, B43851K2107M000, B43858F2107M000, 420QXW100MEFR16X31.5, and EKXJ351ELL101MLN3S are REACH Unaffected. UCY2V101MHD is REACH Affected. Verify REACH compliance requirements for your specific application and region.

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