loading.gif
Notes
Login Sign Up Shopping Cart English
Add to my favorite categories
category Coils
Path Yahoo Bid > Home Appliances, Audio & Video, Camera > Electronic Components > Coils
Remarks
Add my favorite keywords
Keywords R
category Coils
Remarks
Join my favorite seller
Seller 5mVoj***
Remarks
Add to my blacklist seller
Seller 5mVoj***
Remarks
Yahoo Bid Home Appliances, Audio & Video, Camera Electronic Components Coils
☆即決★33μH★TDK★インダクタ★TSL1315S-330K3R7-PF★3.7A★4個1組
 
        

  • Product Quantity
    : 1
  • Starting Bid
    :800円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :May 19, 2026 21:52
  • Bidding closes on
    :May 26, 2026 21:52
  • Auction Number
    :d1225593741
  • Condition
    :New product
  • Automatic Extension
    :No
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. The import of electronic parts requires relevant certificates, such as: IC, capacitors, transistors, power supplies... and other electronic related parts (such as motherboards, power transformers), and we cannot assist you in importing.
  2. Faulty product, please pay attention before subscribing
  3. It is possible that the product can only be picked up by yourself, and the self-pickup fee is quite high, please check the page to confirm
  4. The product location is far from the overseas delivery address (Kanagawa), please pay attention to the Japanese shipping fee
★33μH★TDK★インダクタ★TSL1315S-330K3R7-PF★3.7A☆4個1組
商品説明写真の★33μH★TDK★インダクタ★TSL1315S-330K3R7-PF★3.7A☆4個1組です。

デジタルアンプのローパスフィルタ(LPF)やその他ノイズ防止などにいかがでしょうか。

★本品のデータの抜粋及び外観寸法を掲示しておきます。
★よく似た[TSL0808RA]や[TSL1112S]型に比べて外形や電流容量も大きく頼もしく見えます。

★デジタルアンプのローパスフィルタ(LPF)はスピーカーに直結されており音質に大きな影響を与えます。

★電流容量が大きく抵抗が小さい品質の良いインダクタを使うのが効果も大きく重要だと思います。


[本品に関する参考事例】
デジタルアンプを買いましたが高音域に違和感が有ったので調べたらLPFが有りませんでした。
オシロスコープで波形及びスペクトラムアナライザでEMI(妨害電磁波)を測ったらひどい状況でした。
出力の正弦波はPWMのノイズでまともに正弦波が見えません。
AMラジオでも大きな妨害波が確認できました。

試しにLPFをいくつか試作し挿入したらLPFが無いものに比べ、いずれも綺麗な正弦波になりました。
(写真は22μHと0.47μFを8Ω負荷で見ている例です)
★出品の33μHの方が一回り大きく電流容量も大きいです。

LPFのシュミレーションを「LTスパイス」で行ってみました。
①10μH・0.47μF・8Ω(70KHz付近に5~6dBのピーク有り、6dBで電力比4倍)
②33μH・0.47μF・8Ω(特性が素直で30KHzまでほぼフラット、1MHzの減衰特性もよい)
★シュミレーション結果を写真で掲示しておきます。

実測値もほぼシュミレーションに近い状況でした。
個人的感想としては②の方が高音域がきれいになったように感じました。
最近よくフィルターレスが見受けられますが私はLPFは必要だと思います。

※私の場合の結果・個人的感想でありまた「シュミレーションは実際とは異なる場合もあります」ので「全てが当てはまるとは限りません」ので「ほんの参考」程度とお考え下さい。
※ご自分で判断いただける方宜しくお願い致します。
注意事項

【気持ちの良い取引】に心がけていますので宜しくお願い致します。

・商品の直接手渡しはしていません。
・早期終了する場合があります。
・梱包にはリサイクル品を使用する場合があります。
・評価の「悪い」が多い方は入札を取り消す場合があります。
・初回連絡は48時間以内にお願いいたします。
 (過ぎますと落札者都合で削除する場合があります)
・説明はできる限り正確にと思っていますが万一間違いがあるかもしれません。
・技術的なサポートはできません。
 (ご自分で判断できる方宜しくお願いします)
ジャンクジャンク扱いについては返品・返金はいたしません。
・一般的に中古の場合はリスクを伴う場合がありますので入札は慎重にお願いします。
・一般的に写真は実際の物と色合いや質感が異なる場合が有ります。
・細かいことが気になる方は入札をご遠慮お願いします。
こちらの商品案内は 「■@即売くん5.70■」 で作成されました。

Please log in before asking questions
Question list
All replies from original sellers (total number of questions: items)
After the seller responds, the original page will display the question
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-holdings.com 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.
You may also like
    Seller products
    Excite Translate
    Add to watchlist and notes
    Product name: ☆即決★33μH★TDK★インダクタ★TSL1315S-330K3R7-PF★3.7A★4個1組
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao-holdings.com
    Follow us: