MCR03EZPFX6800 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX6800 is a 680 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This component meets Automotive AEC-Q200 qualification standards and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines that maintain identical electrical and mechanical specifications.

Substiute Parts

MCR03EZPFX6800

Rohm SemiconductorIn Stock: 1025MCR03EZPFX6800 Datasheet

Current PartRFQ

KTR03EZPF6800

Rohm SemiconductorIn Stock: 5648KTR03EZPF6800 Datasheet

UpgradeRFQ

CRCW0603680RFKEA

Vishay DaleIn Stock: 1000303CRCW0603680RFKEA Datasheet

DirectRFQ

CRCW0603680RFKEB

Vishay DaleIn Stock: 28296CRCW0603680RFKEB Datasheet

DirectRFQ

ERJ-3EKF6800V

Panasonic Electronic ComponentsIn Stock: 194408ERJ-3EKF6800V Datasheet

DirectRFQ

RC0603FR-07680RL

YAGEOIn Stock: 500494RC0603FR-07680RL Datasheet

DirectRFQ

RMCF0603FG680R

Stackpole Electronics IncIn Stock: 1059RMCF0603FG680R Datasheet

DirectRFQ

RMCF0603FT680R

Stackpole Electronics IncIn Stock: 33729RMCF0603FT680R Datasheet

DirectRFQ

CR0603-FX-6800ELF

Bourns Inc.In Stock: 109618CR0603-FX-6800ELF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across all critical parameters: resistance value (680 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). Parts are grouped into three categories based on product status and availability:

Upgrade Path (Active Status): KTR03EZPF6800 from Rohm Semiconductor provides direct substitution with enhanced high-voltage thick film characteristics while maintaining all electrical and mechanical specifications.

Direct Equivalents (Active Status): CRCW0603680RFKEA, CRCW0603680RFKEB, ERJ-3EKF6800V, RC0603FR-07680RL, RMCF0603FG680R, and RMCF0603FT680R are functionally equivalent alternatives from Vishay Dale, Panasonic, YAGEO, and Stackpole Electronics respectively. All meet AEC-Q200 automotive qualification or moisture-resistant specifications.

Similar Alternative (Active Status): CR0603-FX-6800ELF from Bourns Inc. provides functional equivalence with moisture-resistant characteristics, suitable for applications where automotive AEC-Q200 rating is not mandatory.

Parameter Comparison

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, select from: KTR03EZPF6800 (Rohm Semiconductor upgrade path with high-voltage capability), CRCW0603680RFKEA (Vishay Dale, highest inventory availability), ERJ-3EKF6800V (Panasonic, active status with strong supply), RMCF0603FG680R, or RMCF0603FT680R (Stackpole Electronics, both AEC-Q200 qualified).

For non-automotive applications where AEC-Q200 is not required, RC0603FR-07680RL (YAGEO, moisture-resistant) or CR0603-FX-6800ELF (Bourns, moisture-resistant) provide cost-effective alternatives with equivalent electrical performance and ROHS3 compliance.

All listed substitutes maintain identical resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. Selection should prioritize product status (active vs. discontinued), packaging format requirements (tape & reel vs. cut tape), and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX6800 be directly replaced with KTR03EZPF6800?

A: Yes. Both parts are manufactured by Rohm Semiconductor with identical electrical specifications (680Ω ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C) and package (0603). KTR03EZPF6800 is the active product line equivalent with enhanced high-voltage thick film characteristics. The primary difference is packaging format: MCR03EZPFX6800 is bulk, while KTR03EZPF6800 is supplied in tape & reel.

Q: What is the difference between CRCW0603680RFKEA and CRCW0603680RFKEB?

A: Both are Vishay Dale CRCW series 680Ω ±1% 0.1W 0603 resistors with identical electrical and mechanical specifications. CRCW0603680RFKEA is active and supplied in cut tape & Digi-Reel format. CRCW0603680RFKEB is discontinued at DiGi Electronics and supplied in tape & reel format. For new designs, CRCW0603680RFKEA is the recommended choice.

Q: Are RC0603FR-07680RL and CR0603-FX-6800ELF suitable for automotive applications?

A: RC0603FR-07680RL (YAGEO) and CR0603-FX-6800ELF (Bourns) are not AEC-Q200 qualified. They are suitable for non-automotive applications requiring moisture-resistant thick film resistors with equivalent electrical performance. For automotive applications, use AEC-Q200 qualified parts: KTR03EZPF6800, CRCW0603680RFKEA, ERJ-3EKF6800V, RMCF0603FG680R, or RMCF0603FT680R.

Q: Do all substitute parts have the same physical dimensions?

A: All parts use 0603 (1608 Metric) package with minor dimensional variations within tolerance. Length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB design tolerances and do not affect interchangeability.

Q: Which substitute offers the best supply availability?

A: CRCW0603680RFKEA (Vishay Dale) has the highest inventory at 1,000,200 pieces. ERJ-3EKF6800V (Panasonic) has 194,326 pieces, and RC0603FR-07680RL (YAGEO) has 500,400 pieces. All three are active products with strong supply chain presence.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original MCR03EZPFX6800 specifications.