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ECS-21K-30A
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We source brand-new parts via original manufacturers, franchised distributors or verified independent channels, with incoming inspection. Channel type is confirmed on your quote.

Contact sales or email [email protected] with MPN and quantity. We reply with stock, ETA and reference pricing — confirm before PO.

Reference price and stock shown as of 2026-11-04. Confirm live availability and unit price via RFQ before placing a PO.

ECS-21K-30A

MONO XTAL 21.4MHZ 2P 1.5DB TH
ECS Inc. International · Monolithic Crystals · BOM Matching
Mfr. Part Number
ECS-21K-30A
Manufacturer
ECS Inc. International
Package / Case
HC-49/U
Datasheet
Datasheet
Description
MONO XTAL 21.4MHZ 2P 1.5DB TH
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
sample
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ECS-21K-30A
ECS Inc. International
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In Stock7,088
Unit
Price
$4.09
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Reference Price
QuantityPrice
1$ 4.0900
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-11-04 · Valid as reference until 2026-11-11 · Request RFQ for live stock.
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Specification Summary

Package / Case
HC-49/U
Frequency - Center
21.4 MHz
Operating Temperature
-20°C ~ 70°C
Mounting Type
Through Hole
Bandwidth
30 kHz
Height (Max)
0.441" (11.20mm)
Impedance
1.5 kOhms
Insertion Loss
1.5dB
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-11-04. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Number of Poles
2
Mounting Type
Through Hole
Operating Temperature
-20°C ~ 70°C
Size / Dimension
0.437" L x 0.185" W (11.10mm x 4.70mm)
Frequency - Center
21.4 MHz
Height (Max)
0.441" (11.20mm)
Ripple
0.5dB
Bandwidth
30 kHz
Impedance
1.5 kOhms
Insertion Loss
1.5dB
Package / Case
HC-49/U
MONO XTAL 21.4MHZ 2P 1.5DB TH
Brand Introduction
ECS Inc., International was established in 1980 and has grown to become one of the most recognized and dependable manufacturers of frequency control and power management products in the world.

ECS Inc. embodies world class design and engineering teams along with state-of-the-art fabrication sites. Their global business partnerships, marketing, sales professionals, and customer care centers support first class customers and distribution channels around the world.

Their talented team of professionals collaborate daily within a network of technology having its primary focus offering quality solutions for their clients’ applications.

It is their mission at ECS Inc. to service a worldwide customer base with the most technologically advanced, reliable, and cost-effective electronic component solution the world demands today

They are your Electronic Component Solution.
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Buying FAQ — ECS-21K-30A

Answer-first notes for stock, authenticity, lead time and quoting. Marked up as FAQPage.

How do I buy ECS-21K-30A from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes ECS-21K-30A. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.
BOM matching · Anti-counterfeit · Lead time & shipping

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