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Yahoo Bid Home Appliances, Audio & Video, Camera Electronic Components Integrated Circuits (IC)
■ IC#21 JRC(新日本無線) NJM2904SXを10個。オペアンプ。廃番品。 ■
 
        

  • Product Quantity
    : 1
  • Starting Bid
    :240円
  • Highest Bidder
    : 82C255 / Rating:2207
  • Listing Date
    :2025年12月25日 12時38分
  • Bidding closes on
    :2025年12月28日 17時24分
  • Auction Number
    :j1213675397
  • Condition
    :New product
  • Automatic Extension
    :Yes
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Import requires relevant certificates and we cannot assist you in importing.
  2. Batteries are considered dangerous goods under international shipping regulations and cannot be shipped.
JRC(新日本無線,現日清紡マイクロデバイス)製のオペアンプIC NJM2904SX を10個まとめて。

2回路入りのオペアンプで、9ピンのSIPパッケージです。すでに廃番となっています。
後継のSIPパッケージ品は NJM2904L(8ピン) でしたが、こちらも生産中止のようです。
表面実装ICが全盛の昨今、SIPパッケージは需要がないのでしょうね。

本品は、1990年代中頃に入手し、空調のない一戸建て民家の2Fに置いたICスティックで長期保管されていました。
ICスティックには、ロットNo.が記載されたJRCさんのラベルが貼付されおり、全数同一ロットと思われます。

両端の1,9番Pinが電源,真ん中の5番PinがGNDで、入出力Pinが左右対称に配置されているので、
逆向きに実装してもOKです(わざわざ逆付けする人は居ないと思いますが、、、)。
DIP品に比べると、長手方向に場所を取りますが、プリントパターンやユニバでの配線引き回しは楽です(個人の感想)。
単電源で使用できますので、バッテリ駆動の回路に向いています(ギターのエフェクタや、お勧めはしませんが車載機器など)。

画像は、先日出品したものの流用です。印字内容は同じですが、捺印のカスレ具合などは現物と異なります。
いまさら電子部品としての需要は無いかもですが、保守用,コレクション用,古いIC萌えなかた、如何でしょうか?

他にも基板関連,ランド法に便利なモノ,ガラクタ類,古いIC類を不定期出品してます。よろしかったら覗いて見て下さい。

●宮城より定形郵便にて送付。送料は¥110。基本的には近所の郵便ポストへの投函です。
 投函~収集までのタイムラグ,気象状況,距離,休日,土日不配達,繁忙期・・・等の影響でお届けが遅くなり、
 取引ナビから受け取り連絡の催促が行く場合があります。システムからの 機 械 的 な 催促です。
 例えば、火曜の夜に投函・発送連絡をしても、収集は翌日です。中2日の地域では翌週月曜日のお届けになります。
●オークション終了後、取引ナビは落札者様から開始することになっています。
 ご自身が入札中の案件の終了日時に留意頂き、終了後は速やかに取引ナビを開始(=落札者情報の入力)して下さい。
 取引メッセージ だ け をいただいても、取引ナビ開始とは見做しませんので、ご注意下さい)。
 オークション終了後24時間以内に取引開始されない場合は、落札者様都合で削除します。
●取引ナビの支払い期限によらず、早急なお支払い手続きをお願いします。
●発送時のあて名書きは、取引ナビに表示されているデータを、そのまま印刷して貼付しています。
 不自然と思われる住所(例えば、市町村名がダブっていたり、"**"などの記号が含まれているとか)であっても、
 修正はしません。それが原因となって御届けが遅くなることも有り得ますので、登録情報を御確認ください。
●評価のトータルが10以下の方,悪い評価が5以上の方は、入札ご遠慮ください。 入札されても落札者様都合で削除します。
●お手数ですが品物を受け取られましたら、速やかに”受取連絡”をお願いします。
 郵送については土日配達はないものの、遅くとも一週間後には届くはずです。
●落札者さまへの評価は、基本的に定型文での入力となります。何やら味気ないですが御許しを。
●長期保管品につき、NC/NRで宜しくお願い致します。
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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: ■ IC#21 JRC(新日本無線) NJM2904SXを10個。オペアンプ。廃番品。 ■
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my