GCM155R71H331KA37D Equivalent & Substitute Parts

Part Overview

The GCM155R71H331KA37D is a 330 pF ±10% 50V ceramic capacitor manufactured by Murata Electronics in the 0402 (1005 Metric) package with X7R temperature coefficient. This surface mount multilayer ceramic capacitor (MLCC) is rated for automotive applications under AEC-Q200 and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity. The part is currently active in production with 1700 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when higher voltage ratings are required for design margin, or when alternative manufacturers' components meet identical electrical and mechanical specifications for cost optimization or supply chain diversification.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±10%
Voltage - Rated	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0402 (1005 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Thickness (Max)	0.022" (0.55mm)
Ratings	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

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

Critical Parameters (Must Match Exactly):

Capacitance: 330 pF
Tolerance: ±10%
Temperature Coefficient: X7R
Package / Case: 0402 (1005 Metric)
Operating Temperature Range: -55°C ~ 125°C
Mounting Type: Surface Mount, MLCC
Physical Dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm)
Thickness (Max): 0.022" (0.55mm)
Ratings: AEC-Q200
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

Voltage - Rated: Equal to or greater than 50V (upgrade acceptable)
Manufacturer: Different manufacturers permitted if all other parameters match

Substitute parts are grouped into two categories:

Upgrade Category: Parts with identical specifications except for higher voltage rating (100V vs. 50V). These provide additional design margin and are direct functional upgrades.

Parametric Equivalent Category: Parts from alternative manufacturers with identical electrical and mechanical specifications, including 50V voltage rating.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage - Rated	Temperature Coefficient	Package	AEC-Q200	Inventory (Pcs)
GCM155R71H331KA37D	Murata Electronics	330 pF	±10%	50V	X7R	0402	Yes	1700
GCM155R72A331KA37D	Murata Electronics	330 pF	±10%	100V	X7R	0402	Yes	23102
GRT155R71H331KE01D	Murata Electronics	330 pF	±10%	50V	X7R	0402	Yes	8460
AC0402KRX7R9BB331	YAGEO	330 pF	±10%	50V	X7R	0402	Yes	1808
C0402C331K5RACAUTO	KEMET	330 pF	±10%	50V	X7R	0402	Yes	9250
C0402S331K5RACAUTO	KEMET	330 pF	±10%	50V	X7R	0402	Yes	10692
CGA2B2X7R1H331K050BA	TDK Corporation	330 pF	±10%	50V	X7R	0402	Yes	24539
CL05B331KB5VPNC	Samsung Electro-Mechanics	330 pF	±10%	50V	X7R	0402	Yes	3857
MAASU105SB7331KFCA01	Taiyo Yuden	330 pF	±10%	50V	X7R	0402	Yes	24136

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full compliance with ROHS3, REACH Unaffected, and AEC-Q200 automotive ratings. Selection between equivalent parts should be based on:

Inventory Availability: CGA2B2X7R1H331K050BA (TDK, 24539 pcs), MAASU105SB7331KFCA01 (Taiyo Yuden, 24136 pcs), and C0402S331K5RACAUTO (KEMET, 10692 pcs) offer the highest stock levels for immediate procurement.

Voltage Margin: GCM155R72A331KA37D provides a 100V rating versus the original 50V specification, offering additional design margin for applications requiring enhanced voltage headroom while maintaining identical capacitance and tolerance.

Manufacturer Diversification: Parametric equivalents from YAGEO, KEMET, TDK Corporation, Samsung Electro-Mechanics, and Taiyo Yuden provide supply chain alternatives while maintaining identical electrical performance and automotive qualification.

Special Features: C0402S331K5RACAUTO includes floating electrode technology within the X7R series, available as an alternative within the KEMET product line.

Frequently Asked Questions (FAQ)

Q: Can GCM155R72A331KA37D (100V) be used as a direct replacement for GCM155R71H331KA37D (50V)?

A: Yes. The 100V rated part is a functional upgrade with identical capacitance (330 pF), tolerance (±10%), temperature coefficient (X7R), package (0402), and operating temperature range (-55°C ~ 125°C). Higher voltage rating provides additional design margin without affecting circuit performance.

Q: Are all substitute parts automotive qualified?

A: Yes. All listed parts carry AEC-Q200 rating and are specified for automotive applications with identical compliance certifications (ROHS3, REACH Unaffected, MSL 1).

Q: What is the difference between C0402C331K5RACAUTO and C0402S331K5RACAUTO?

A: Both are KEMET 330 pF 50V X7R 0402 capacitors with identical electrical specifications. C0402S331K5RACAUTO includes floating electrode technology within the SMD Auto X7R FE series. Selection depends on application-specific requirements for floating electrode performance.

Q: Can parts from different manufacturers be mixed in the same assembly?

A: Yes. All substitute parts meet identical electrical and mechanical specifications, AEC-Q200 automotive rating, and compliance requirements. Different manufacturers' parts are interchangeable at the component level.

Q: What does MSL 1 (Unlimited) mean for handling?

A: MSL 1 indicates the lowest moisture sensitivity level with unlimited shelf life. These parts do not require special moisture control during storage or handling, simplifying logistics and inventory management.

Q: Are there any dimensional differences between substitute parts?

A: No. All parts share identical package designation (0402 / 1005 Metric), physical dimensions (0.039" L x 0.020" W / 1.00mm x 0.50mm), and maximum thickness (0.022" / 0.55mm).

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