EMZJ250ARA331MHA0G Equivalent & Substitute Parts

Part Overview

The EMZJ250ARA331MHA0G is a 330 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in the Alchip™-MZJ series. This surface mount radial can capacitor is designed for automotive applications with AEC-Q200 qualification and operates across -55°C to 105°C with a rated lifetime of 2000 hours at 105°C. The part is actively produced and ROHS3 compliant.

Equivalent and substitute parts are identified when design requirements allow flexibility in ESR characteristics, ripple current ratings, or lifetime specifications while maintaining core electrical parameters: 330 µF capacitance, ±20% tolerance, and 25 V rated voltage. Substitute selection depends on application-specific ripple current demands, thermal cycling requirements, and PCB layout constraints.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	—
Voltage - Rated	25	V
ESR @ 100 kHz	80	mOhm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-55 to 105	°C
Ripple Current @ 100 kHz	850	mA
Package / Case	Radial, Can - SMD	—
Size / Dimension	0.315" Dia (8.00 mm)	—
Height - Seated (Max)	0.406" (10.30 mm)	—
Surface Mount Land Size	0.327" L x 0.327" W (8.30 x 8.30 mm)	—
Mounting Type	Surface Mount	—
AEC-Q200 Rated	Yes	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution is determined by three core criteria:

Electrical Equivalence: Capacitance (330 µF), tolerance (±20%), and rated voltage (25 V) must match exactly.
Mechanical Compatibility: Package type (Radial, Can - SMD), footprint dimensions (0.315" diameter, 8.30 x 8.30 mm land size), and mounting type (Surface Mount) must be identical or compatible with PCB layout.
Performance Parameters: ESR, ripple current ratings, and lifetime specifications determine suitability based on circuit requirements. Parts with lower ESR or higher ripple current ratings provide performance headroom. Parts with extended lifetime (5000 Hrs @ 105°C) offer enhanced reliability for demanding applications.

All substitute parts listed are AEC-Q200 qualified, ROHS3 compliant, and operate within the -55°C to 105°C temperature range, ensuring automotive-grade reliability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	ESR @ 100 kHz (mOhm)	Lifetime @ 105°C (Hrs)	Ripple Current @ 100 kHz (mA)	Height (mm)	Inventory (Pcs)
EMZJ250ARA331MHA0G	Chemi-Con	Alchip™-MZJ	330	25	80	2000	850	10.30	970
EMZA250ARA331MHA0G	Chemi-Con	Alchip™-MZA	330	25	160	2000	600	10.50	5200
25TKV330M8X10.5	Rubycon	TKV	330	25	80	2000	850	10.50	2282
25TZV330M8X10.5	Rubycon	TZV	330	25	160	2000	600	10.50	4726
AFK337M25F24T-F	Cornell Dubilier Electronics (CDE)	AFK	330	25	160	2000	600	10.50	2545
EEE-FK1E331AP	Panasonic Electronic Components	FK	330	25	160	2000	600	10.50	4971
EEE-FK1E331P	Panasonic Electronic Components	FK	330	25	160	2000	600	10.50	83030
EEE-FP1E331AP	Panasonic Electronic Components	FP	330	25	80	2000	850	10.20	41263
EEV337M025S9MAA	KEMET	EEV	330	25	160	2000	600	10.50	2392
25TLV330M8X10.5	Rubycon	TLV	330	25	160	5000	600	10.50	1438
EEE-FK1E331GP	Panasonic Electronic Components	FK	330	25	160	5000	600	10.50	7383

Engineering Selection Recommendations

Direct Equivalents (2000 Hrs @ 105°C, 80 mOhm ESR)

EMZA250ARA331MHA0G, 25TKV330M8X10.5, and EEE-FP1E331AP maintain the 80 mOhm ESR specification of the primary part. These are suitable for applications requiring low impedance and high ripple current handling (850 mA @ 100 kHz). All three are AEC-Q200 qualified and ROHS3 compliant. EMZA250ARA331MHA0G offers the highest inventory availability (5200 pcs) within this group.

Standard Substitutes (2000 Hrs @ 105°C, 160 mOhm ESR)

EMZA250ARA331MHA0G, 25TZV330M8X10.5, AFK337M25F24T-F, EEE-FK1E331AP, EEE-FK1E331P, and EEV337M025S9MAA feature 160 mOhm ESR with reduced ripple current ratings (600 mA @ 100 kHz). These are suitable for applications where lower ripple current is acceptable. EEE-FK1E331P provides the largest inventory (83030 pcs). All maintain AEC-Q200 qualification and ROHS3 compliance.

Extended Lifetime Upgrades (5000 Hrs @ 105°C)

25TLV330M8X10.5 and EEE-FK1E331GP extend thermal lifetime to 5000 hours at 105°C while maintaining 160 mOhm ESR and 600 mA ripple current. These upgrades are specified for applications requiring enhanced long-term reliability in high-temperature environments. Both are AEC-Q200 qualified and ROHS3 compliant.

PCB Layout Considerations

Height variation ranges from 10.20 mm (EEE-FP1E331AP) to 10.50 mm (most substitutes). The primary part measures 10.30 mm. Verify clearance in designs with tight vertical constraints. All parts share identical 8.30 x 8.30 mm land size footprints.

Frequently Asked Questions (FAQ)

Q: Can I substitute EMZJ250ARA331MHA0G with a part having 160 mOhm ESR instead of 80 mOhm?

A: Yes, if the circuit design does not require the lower impedance. Parts with 160 mOhm ESR (EMZA250ARA331MHA0G, 25TZV330M8X10.5, AFK337M25F24T-F, EEE-FK1E331AP, EEE-FK1E331P, EEV337M025S9MAA) are electrically equivalent for 330 µF, 25 V applications. However, ripple current handling is reduced to 600 mA @ 100 kHz versus 850 mA for the primary part. Confirm your circuit's ripple current requirement before substitution.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All parts listed—EMZJ250ARA331MHA0G, EMZA250ARA331MHA0G, 25TKV330M8X10.5, 25TZV330M8X10.5, AFK337M25F24T-F, EEE-FK1E331AP, EEE-FK1E331P, EEE-FP1E331AP, EEV337M025S9MAA, 25TLV330M8X10.5, and EEE-FK1E331GP—carry AEC-Q200 automotive qualification and are ROHS3 compliant.

Q: What is the difference between 2000 Hrs and 5000 Hrs lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches the tolerance limit. 25TLV330M8X10.5 and EEE-FK1E331GP are rated for 5000 hours, providing extended reliability for long-life automotive systems. The primary part and most substitutes are rated for 2000 hours. Select extended-lifetime parts for applications requiring higher thermal cycling endurance.

Q: Can I use EEE-FK1E331P instead of EMZJ250ARA331MHA0G on my PCB?

A: Yes, if your design accommodates the following: EEE-FK1E331P has 160 mOhm ESR (versus 80 mOhm), reducing ripple current capacity to 600 mA @ 100 kHz. Height is 10.50 mm versus 10.30 mm for the primary part. Land size is identical (8.30 x 8.30 mm). Verify ripple current requirements and vertical clearance before substitution.

Q: Which substitute offers the best inventory availability?

A: EEE-FK1E331P (Panasonic FK series) has the highest inventory at 83030 pcs. EEE-FP1E331AP (Panasonic FP series) offers 41263 pcs with matching 80 mOhm ESR and 850 mA ripple current to the primary part.

Q: Are there height restrictions I should consider?

A: The primary part (EMZJ250ARA331MHA0G) measures 10.30 mm seated height. Most substitutes measure 10.50 mm, except EEE-FP1E331AP at 10.20 mm. If your PCB has tight vertical constraints (clearance to adjacent components or enclosure), verify the substitute height against your design limits.

Q: What does ±20% tolerance mean for capacitance?

A: All parts in this list are rated ±20% tolerance, meaning actual capacitance can range from 264 µF to 396 µF. This tolerance is acceptable for general filtering and decoupling applications. If your circuit requires tighter tolerance, consult the manufacturer for alternative series.

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