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ST12001B

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ST12001B

ST12001B

  • Description：ICL 12 OHM 20% 1A 6.99MM
  • Series：ST
  • Mfr：Littelfuse Inc.
  • Package：Bulk

SKU:9303d5d862b9 Category: Brand:

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Product Detailed Parameters

  • Description：ICL 12 OHM 20% 1A 6.99MM
  • Series：ST
  • Mfr：Littelfuse Inc.
  • Package：Bulk
  • R @ 25°C：12 Ohms
  • Tolerance：±20%
  • Current - Steady State Max：1:00 AM
  • R @ Current：1.19 Ohms
  • Diameter：0.275" (6.99mm)
  • Lead Spacing：0.160" (4.06mm)
  • Grade：-
  • Qualification：-
  • Approval Agency：-

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ST12001B

How to buy
Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.
Payment Method
Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.
Delivery time
In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.
Freight calculation
Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.
Mode of Transportation
We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.
Return and Refund
Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.

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Buying Guide
Summary

Littelfuse Inc. ST12001B is a component in Inrush Current Limiters (ICL) category typically evaluated for fit, operating limits, and supportability in production. Key specs include Description (ICL 12 OHM 20% 1A 6.99MM), Series (ST), and Packaging (Bulk).

Selection Notes
  • For ST12001B, confirm the tolerance (±20%) is acceptable for your accuracy and drift budget.
  • Verify Diameter (0.275" (6.99mm)) and compare it against your reference design limits.
  • Validate R @ 25°C (12 Ohms) under the expected test conditions in your application.
  • Check Current - Steady State Max (1:00 AM) against the datasheet conditions and your system-level constraints.
Alternates & Substitutions
  • For Inrush Current Limiters (ICL), validate alternates under worst-case corners rather than assuming typical-only conditions represent production builds.
  • For any substitution, verify the datasheet conditions behind headline specs and validate the alternate under your worst-case operating corners.
  • Lock the mechanical constraints first (packaging Bulk) before comparing performance specs.
  • If you are qualifying a second source, align documentation/traceability requirements early to avoid surprises in procurement.
FAQ

Who is the manufacturer of ST12001B?
Littelfuse Inc.

What should I compare when selecting an alternate for ST12001B?
Compare footprint/pinout, key electrical limits, temperature range, and interface requirements, then validate under worst-case conditions.

Which Tolerance is specified for ST12001B?
±20%

Which packaging format is listed for ST12001B?
Bulk

Application Scenarios

In the Inrush Current Limiters (ICL) category, Littelfuse Inc. ST12001B is often evaluated by how well it fits electrical, thermal, and mechanical constraints in the target system. Protection devices are most effective when chosen with realistic fault models and validated in compliance testing. A coordinated protection strategy often improves safety and reduces costly field failures. Across industrial I/O, coordinated surge protection defends long wiring against lightning-induced spikes and switching noise. In industrial equipment, inrush control reduces nuisance trips and contact wear when loads are switched repeatedly in noisy mains environments. In power distribution, limiting peak current improves reliability of upstream supplies and wiring harnesses during brownouts and restart events.

Compatibility Advice
  • In board-level integration, confirm ratings and derating under the real load type, because inrush and inductive kick dominate field stress across temperature and supply corners.
Project Fit
  • A strong fit when you can verify Littelfuse Inc. ST12001B for Inrush Current Limiters (ICL) integration across temperature and supply corners, typically when you can control ingress, contamination, and mounting so failure modes stay predictable.
ST12001BST12001B

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