ECS-200-20-1 Crystal Equivalent & Substitute Parts

Part Overview

The ECS-200-20-1 is a 20 MHz through-hole crystal oscillator in HC-49/U package with 20pF load capacitance and 20 Ohms equivalent series resistance. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary for legacy system maintenance, repair operations, and continued production support where original components are unavailable or inventory is depleted.

Substiute Parts

ECS-200-20-1
ECS Inc.In Stock: 3034ECS-200-20-1 Datasheet
ECS-200-20-1
Current Part
ECS-200-20-1X
ECS Inc.In Stock: 4367ECS-200-20-1X Datasheet
ECS-200-20-1X
Parametric Equivalent

Key Parameters

Parameter Value
Frequency 20 MHz
Frequency Tolerance ±30ppm
Load Capacitance 20pF
ESR (Equivalent Series Resistance) 20 Ohms
Operating Mode Fundamental
Package / Case HC-49/U
Mounting Type Through Hole
Operating Temperature Range -10°C ~ 70°C

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-200-20-1 is determined by strict equivalence across the following critical parameters:

  • Frequency: 20 MHz (exact match required)
  • Frequency Tolerance: ±30ppm (exact match required)
  • Load Capacitance: 20pF (exact match required)
  • ESR: 20 Ohms (exact match required)
  • Operating Mode: Fundamental (exact match required)
  • Package / Case: HC-49/U (exact match required)
  • Mounting Type: Through Hole (exact match required)
  • Operating Temperature Range: -10°C ~ 70°C (exact match required)

Parts meeting all these criteria are classified as parametric equivalents and may be used as direct substitutes in applications originally designed for the ECS-200-20-1.

Parameter Comparison

Parameter ECS-200-20-1 ECS-200-20-1X
Manufacturer ECS Inc. ECS Inc.
Frequency 20 MHz 20 MHz
Frequency Stability ±50ppm ±50ppm
Frequency Tolerance ±30ppm ±30ppm
Load Capacitance 20pF 20pF
ESR 20 Ohms 20 Ohms
Operating Mode Fundamental Fundamental
Package / Case HC-49/U HC-49/U
Mounting Type Through Hole Through Hole
Operating Temperature Range -10°C ~ 70°C -10°C ~ 70°C
Size / Dimension 0.447" L x 0.183" W (11.35mm x 4.65mm) 0.447" L x 0.183" W (11.35mm x 4.65mm)
Height - Seated (Max) 0.530" (13.46mm) 0.530" (13.46mm)
Product Status Not For New Designs Active
RoHS Status RoHS non-compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS 8541.60.0050 8541.60.0050

Engineering Selection Recommendations

The ECS-200-20-1X is a parametric equivalent substitute for the ECS-200-20-1. Both parts share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: the ECS-200-20-1 is designated Not For New Designs, while the ECS-200-20-1X maintains Active status in the manufacturer's current product line.

An additional consideration is regulatory compliance. The ECS-200-20-1X is ROHS3 Compliant, whereas the ECS-200-20-1 is RoHS non-compliant. For applications subject to RoHS requirements, the ECS-200-20-1X is the appropriate selection. Both parts maintain identical REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can the ECS-200-20-1X be used as a direct replacement for the ECS-200-20-1?

A: Yes. The ECS-200-20-1X meets all electrical and mechanical parameter requirements for direct substitution. Both parts are manufactured by ECS Inc., share identical frequency, load capacitance, ESR, package type, and operating temperature specifications.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and RoHS compliance. The ECS-200-20-1 is Not For New Designs and RoHS non-compliant. The ECS-200-20-1X is Active and ROHS3 Compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences?

A: No. Both parts use the HC-49/U package with through-hole mounting. Physical dimensions and height specifications are identical.

Q: Which part should be selected for new applications?

A: The ECS-200-20-1X should be selected for new applications. It carries Active product status and meets current RoHS3 compliance requirements.

Q: Are there inventory considerations between these parts?

A: Yes. The ECS-200-20-1 has 2949 pieces in stock, while the ECS-200-20-1X has 4331 pieces available. Availability may vary by distributor and time of order.

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