GCM1885C1H4R9DA16J Equivalent & Substitute Parts

Part Overview

The GCM1885C1H4R9DA16J is a 4.9 pF ceramic capacitor manufactured by Murata Electronics, rated for 50V operation with C0G/NP0 temperature coefficient characteristics. This component is packaged in 0603 (1608 Metric) form factor and is designed for surface mount applications in automotive environments. The part carries AEC-Q200 automotive qualification and ROHS3 compliance status.

The product status is listed as "Not For New Designs," indicating that while the component remains available in inventory (726 pieces in stock), Murata has designated this part for legacy applications only. Identification of equivalent substitute parts is necessary for design flexibility, inventory management, and transition to active product lines where applicable.

Substiute Parts

GCM1885C1H4R9DA16J

Murata ElectronicsIn Stock: 780GCM1885C1H4R9DA16J Datasheet

Current PartRFQ

GCM1555C1H4R9CA16D

Murata ElectronicsIn Stock: 931GCM1555C1H4R9CA16D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GCM1885C1H4R9DA16J is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance value: 4.9 pF
• Voltage rating: 50V minimum
• Temperature coefficient: C0G/NP0
• Operating temperature range: -55°C ~ 125°C

Mechanical Parameters (Must Match):

• Mounting type: Surface Mount, MLCC
• Automotive qualification: AEC-Q200

Compliance Parameters (Must Match):

• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute part GCM1555C1H4R9CA16D maintains electrical and compliance equivalence but differs in package form factor (0402 versus 0603) and tolerance specification (±0.25pF versus ±0.5pF). This substitute is suitable only in applications where the smaller 0402 package footprint is acceptable and the tighter tolerance does not create design conflicts.

Parameter Comparison

Engineering Selection Recommendations

For Legacy Applications (Existing Designs): The GCM1885C1H4R9DA16J remains suitable for continuation in established designs where the 0603 package footprint is already implemented. The "Not For New Designs" status does not affect functional performance in existing applications. Current inventory of 726 pieces supports ongoing production requirements.

For New Design Implementations: The GCM1555C1H4R9CA16D is the recommended selection path. This substitute carries "Active" product status from Murata Electronics, ensuring long-term availability and supply chain stability. The substitute maintains full electrical equivalence (4.9 pF, 50V, C0G/NP0) and all required automotive certifications (AEC-Q200, ROHS3, MSL 1).

Package Footprint Consideration: Selection between these parts is contingent upon PCB layout constraints. The 0603 package (1.60mm x 0.80mm) is larger than the 0402 package (1.00mm x 0.50mm). The substitute part requires redesign of component placement and routing if the original design was optimized for 0603 dimensions.

Tolerance Specification: The substitute part offers tighter tolerance (±0.25pF) compared to the main part (±0.5pF). This enhanced tolerance does not create incompatibility and provides improved capacitance accuracy for precision circuit applications.

Compliance Verification: Both parts satisfy automotive qualification requirements (AEC-Q200), environmental compliance (ROHS3), and moisture handling specifications (MSL 1). No additional qualification testing is required for substitution in automotive applications.

Frequently Asked Questions (FAQ)

Q: Can GCM1555C1H4R9CA16D be used as a direct replacement for GCM1885C1H4R9DA16J?

A: Electrical and compliance substitution is valid. The substitute maintains identical capacitance (4.9 pF), voltage rating (50V), temperature coefficient (C0G/NP0), and automotive certifications (AEC-Q200). However, the package form factor differs (0402 versus 0603), requiring PCB layout modification. Direct board-level substitution without layout changes is not possible.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This designation indicates that Murata Electronics has transitioned this component to legacy status and recommends using active alternatives for new product development. The part remains functional and available but will not receive design updates or extended availability guarantees. Existing designs may continue using this part.

Q: Are there any electrical performance differences between the two parts?

A: No electrical performance differences exist in circuit operation. Both parts deliver 4.9 pF capacitance at 50V with C0G/NP0 stability across -55°C to 125°C. The substitute offers tighter tolerance (±0.25pF versus ±0.5pF), which improves capacitance accuracy without affecting compatibility.

Q: Does the smaller 0402 package affect circuit performance?

A: Package size does not affect electrical performance. The 0402 package is physically smaller (1.00mm x 0.50mm versus 1.60mm x 0.80mm) and thinner (0.55mm versus 0.90mm maximum thickness). These dimensional differences impact only PCB layout and assembly considerations, not circuit function.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating. Both are approved for automotive environments and meet all specified environmental and reliability standards.

Q: What inventory considerations should guide part selection?

A: The main part has 726 pieces in current stock, while the substitute has 822 pieces available. For immediate production needs, either part is available. For long-term supply assurance, the substitute's "Active" status provides greater availability certainty beyond current inventory levels.