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RST 4 AMMO
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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 2026-11-05. Confirm live availability and unit price via RFQ before placing a PO.

RST 4 AMMO

FUSE BOARD MOUNT 4A 250VAC RAD
Bel Fuse, Inc. · Fuses · BOM Matching
Mfr. Part Number
RST 4 AMMO
Manufacturer
Bel Fuse, Inc.
Package / Case
Radial, Box
Datasheet
Datasheet
Description
FUSE BOARD MOUNT 4A 250VAC RAD
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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RST 4 AMMO
Bel Fuse, Inc.
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In Stock3,136
Unit
Price
$0.43
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Reference Price
QuantityPrice
1$ 0.4300
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-11-05 · Valid as reference until 2026-11-12 · Request RFQ for live stock.
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Specification Summary

Package / Case
Radial, Box
Breaking Capacity @ Rated Voltage
100A
Voltage Rating - AC
250 V
Current Rating (Amps)
4 A
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Approval Agency
CCC, CE, cURus, PSE, SEMKO, VDE
Fuse Type
Board Mount (Cartridge Style Excluded)
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 2026-11-05. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Melting I²t
110
Color
-
Mounting Type
Through Hole
Operating Temperature
-55°C ~ 125°C
Size / Dimension
0.329" L x 0.157" W x 0.303" H (8.35mm x 4.00mm x 7.70mm)
Breaking Capacity @ Rated Voltage
100A
Fuse Type
Board Mount (Cartridge Style Excluded)
Approval Agency
CCC, CE, cURus, PSE, SEMKO, VDE
Current Rating (Amps)
4 A
Package / Case
Radial, Box
Response Time
Slow Blow
Voltage Rating - AC
250 V
Voltage Rating - DC
-
FUSE BOARD MOUNT 4A 250VAC RAD
Brand Introduction
Bel Fuse-Circuit Protection offers a broad range of PCB Mount, Surface Mount and PTC resettable fuses. PCB Mount products include radial, standard glass and ceramic cartridge fuses. The company has been at the forefront of the industry’s shift to surface mount fuse designs, such as brick and chip fuses, that incorporate the need for small, compact technology. Bel Fuse-Circuit Protection also offers a complete product offering of PTC resettable fuses in both surface mount and radial styles. Fuse products are certified by many 3rd party agencies to varied performance standards. The certification marks are obtained through agencies such as UL, CSA, PSE, CCC, VDE and Semko. The fuse and PTC resettable products are all RoHS 2 compliant.
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Buying FAQ — RST 4 AMMO

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

How do I buy RST 4 AMMO from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes RST 4 AMMO. 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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