EMHB250ARA331MJA0G Equivalent & Substitute Parts

Part Overview

The EMHB250ARA331MJA0G is a 330 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in the Alchip™-MHB series. This surface mount radial can capacitor is designed for automotive applications and carries AEC-Q200 qualification. The part is active in production with 1144 units in stock. Substitute parts are identified to address component availability, extended lifetime requirements, or improved electrical performance characteristics while maintaining core functional compatibility.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Critical - must match exactly
Voltage Rating	25	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Package Type	Radial, Can - SMD	-	Critical - PCB footprint compatibility
Mounting Type	Surface Mount	-	Critical - assembly process compatibility
Physical Dimensions	10.00mm Dia × 10.50mm H (max)	mm	Critical - board space constraints
Land Size	10.30mm × 10.30mm	mm	Critical - PCB pad layout
Lifetime @ 125°C	2000	Hrs	Performance - reliability requirement
Operating Temperature	-40 to 125	°C	Critical - thermal environment
Polarization	Polar	-	Critical - circuit polarity requirement
AEC-Q200 Rating	Yes	-	Critical - automotive qualification
RoHS3 Compliance	Compliant	-	Critical - regulatory requirement
MSL Rating	1 (Unlimited)	-	Performance - moisture handling

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across critical parameters. All substitute parts listed maintain identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), package type (Radial, Can - SMD), physical dimensions (10.00mm diameter with maximum heights of 10.30mm to 10.50mm), land size (10.30mm × 10.30mm), operating temperature range (-40°C to 125°C), polarization (Polar), AEC-Q200 automotive qualification, and RoHS3 compliance.

Substitutes are grouped into three categories based on substitution relationship type:

Direct Manufacturer Substitutes maintain full electrical and mechanical compatibility with the main part. These include EMHJ250ARA331MJA0G, EMHL250ARA331MJA0G, 25TGV330M10X10.5, and EEE-TG1E331UP. Differences in ESR (Equivalent Series Resistance), ripple current handling, and lifetime specifications are secondary performance variations that do not prevent substitution.

Upgrade Substitute (25THV330M10X10.5) offers extended lifetime (3000 hours at 125°C versus 2000 hours) while maintaining all critical parameters, providing enhanced reliability for demanding applications.

Parametric Equivalents (25TXV330M10X10.5 and EDT337M025S9PAA) satisfy all critical functional requirements but may have variations in secondary electrical characteristics such as ESR specifications or ripple current ratings.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR @ 100kHz (mOhm)	Lifetime @ 125°C (Hrs)	Height Max (mm)	Ripple Current @ 100kHz (mA)	Stock (Pcs)
EMHB250ARA331MJA0G	Chemi-Con	Alchip™-MHB	330	25	±20	200 @ 400kHz	2000	10.50	330	1144
EMHJ250ARA331MJA0G	Chemi-Con	Alchip™-MHJ	330	25	±20	120 @ 100kHz	2000	10.30	550	1405
EMHL250ARA331MJA0G	Chemi-Con	AIchip™-MHL	330	25	±20	200 @ 100kHz	4000	10.50	440	1279
25TGV330M10X10.5	Rubycon	TGV	330	25	±20	120 @ 100kHz	3000	10.50	550	1339
EEE-TG1E331UP	Panasonic	TG	330	25	±20	300 @ 100kHz	2000	10.20	270	6550
25THV330M10X10.5	Rubycon	THV	330	25	±20	200 @ 100Hz	3000	10.50	500	1263
25TXV330M10X10.5	Rubycon	TXV	330	25	±20	200	2000	10.50	300	1090
EDT337M025S9PAA	KEMET	EDT	330	25	±20	Not specified	2000	10.50	257.143	9317

Engineering Selection Recommendations

All listed substitute parts carry AEC-Q200 automotive qualification and RoHS3 compliance, meeting the regulatory and quality requirements of the original EMHB250ARA331MJA0G. Selection among substitutes should be based on specific application requirements:

For direct replacement with identical performance characteristics: EMHJ250ARA331MJA0G, EMHL250ARA331MJA0G, 25TGV330M10X10.5, and EEE-TG1E331UP are functionally equivalent. These parts maintain the same capacitance, voltage rating, tolerance, package dimensions, and operating temperature range.

For applications requiring extended operational lifetime: EMHL250ARA331MJA0G (4000 hours at 125°C) and 25THV330M10X10.5 (3000 hours at 125°C) provide enhanced reliability compared to the 2000-hour baseline of the original part.

For applications with high ripple current demands: EMHJ250ARA331MJA0G and 25TGV330M10X10.5 offer superior ripple current handling (550 mA at 100 kHz) compared to the original part (330 mA at 100 kHz).

For applications with low ESR requirements: EMHJ250ARA331MJA0G and 25TGV330M10X10.5 provide 120 mOhm ESR at 100 kHz, lower than the original part's 200 mOhm specification.

For high-volume availability: EEE-TG1E331UP (Panasonic) offers the largest stock quantity (6550 units) and EDT337M025S9PAA (KEMET) provides 9317 units, supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can EMHJ250ARA331MJA0G be used as a direct replacement for EMHB250ARA331MJA0G?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), package type (Radial, Can - SMD), physical dimensions (10.00mm diameter), land size (10.30mm × 10.30mm), operating temperature range (-40°C to 125°C), AEC-Q200 qualification, and RoHS3 compliance. The EMHJ variant has lower ESR (120 mOhm versus 200 mOhm at 100 kHz) and higher ripple current capability (550 mA versus 330 mA at 100 kHz), making it a compatible upgrade.

Q: What is the difference between the MHB, MHJ, and MHL series from Chemi-Con?

A: All three series (Alchip™-MHB, Alchip™-MHJ, and AIchip™-MHL) are 330 µF, 25 V aluminum electrolytic capacitors in identical packages. The primary differences are ESR characteristics and lifetime ratings. MHB offers 200 mOhm ESR with 2000-hour lifetime. MHJ provides lower ESR (120 mOhm) with 2000-hour lifetime. MHL maintains 200 mOhm ESR but extends lifetime to 4000 hours at 125°C.

Q: Are Rubycon TGV and THV series compatible with the Chemi-Con EMHB part?

A: Yes. Both Rubycon parts (25TGV330M10X10.5 and 25THV330M10X10.5) maintain all critical parameters: 330 µF capacitance, 25 V voltage rating, ±20% tolerance, identical package dimensions, AEC-Q200 qualification, and RoHS3 compliance. The TGV series offers 3000-hour lifetime with 120 mOhm ESR. The THV series provides 3000-hour lifetime with 200 mOhm ESR.

Q: Can the Panasonic EEE-TG1E331UP be substituted in applications requiring low ESR?

A: The EEE-TG1E331UP has 300 mOhm ESR at 100 kHz, which is higher than the original EMHB250ARA331MJA0G (200 mOhm at 400 kHz). While this part is mechanically and electrically compatible for general substitution, applications with strict ESR requirements should select EMHJ250ARA331MJA0G or 25TGV330M10X10.5 (both 120 mOhm at 100 kHz).

Q: What is the physical height difference between substitute parts?

A: Most substitute parts have maximum seated heights of 10.50mm, matching the original EMHB250ARA331MJA0G. The exception is EEE-TG1E331UP (Panasonic), which has a maximum height of 10.20mm. This 0.30mm difference is within typical PCB design tolerances but should be verified against specific board clearance requirements.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Most substitute parts are supplied in Tape & Reel (TR) packaging. EDT337M025S9PAA (KEMET) is supplied in Cut Tape (CT) and Digi-Reel® packaging. Verify packaging format compatibility with assembly equipment and procurement requirements.

Q: Which substitute offers the best ripple current performance?

A: EMHJ250ARA331MJA0G and 25TGV330M10X10.5 both provide 550 mA ripple current at 100 kHz, compared to 330 mA for the original EMHB250ARA331MJA0G. These parts are optimal for applications with high AC current stress.

Q: Do all substitute parts meet automotive qualification standards?

A: Yes. All listed substitute parts carry AEC-Q200 qualification and RoHS3 compliance, meeting automotive industry requirements for reliability and environmental compliance.

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