SF-3812TM125T-2 Bourns SF-3812TM125T-2 is a 1.25A, 600VAC/250VDC slow blow surface mount fuse in a 2-SMD square end block package, designed for telecom overcurrent protection.
Mfr Part #:

SF-3812TM125T-2

Available from 1 distributors
Mfr Name: Bourns
Bourns
Bourns SF-3812TM125T-2 is a 1.25A, 600VAC/250VDC slow blow surface mount fuse in a 2-SMD square end block package, designed for telecom overcurrent protection.
✓ Total Stock: 2,500 pcs
$ Price Range: $0.28 - $1.01

SF-3812TM125T-2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,500 pcs
2500 pcs On Request 1 On Request On Request On Request On Request On Request

SF-3812TM125T-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Length
Melting I²t
Mounting Type
Operating Temperature
Response Time
Shelf Life
Storage Temperature
Tape & Reel
Voltage Rating
Width

SF-3812TM125T-2 Description

Short technical summary and product information.

The Bourns SF-3812TM125T-2 is a surface mount fuse from the SinglFuse Telefuse series, designed for telecom overcurrent protection. It is rated for 1.25A continuous current with a voltage rating of 600VAC and 250VDC. The fuse features a slow blow response time, making it suitable for applications with high surge tolerance, such as telecom line cards and equipment per Telcordia GR-1089 and UL 60950 standards.

 

Electrical characteristics include a typical resistance of 0.1Ω, melting I²t of 22 A²s, and maximum power dissipation of 0.6W. The interrupting rating is 60A at 600VAC, 60A at 250VAC, 50A at 250VDC, and 100A at 125VDC. The fuse is housed in a 2-SMD square end block package with dimensions 10.10mm x 3.10mm x 3.10mm, suitable for automated surface mount assembly.

 

The SF-3812TM125T-2 operates over a temperature range of -55°C to +125°C and is UL 248-14 compliant. It is RoHS3 compliant and halogen free, meeting environmental standards for modern electronic designs.

SF-3812TM125T-2 Quick Information

Product Type: Fuse
Series: SF-3812TM-T
Canonical Name: Bourns SF-3812TM125T-2 SinglFuse Telefuse Telecom Protector, 1.25A, 600VAC/250VDC, Slow Blow, Surface Mount
Subcategory: Surface Mount Fuse

SF-3812TM125T-2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SF-3812TM125T-2 Estimated Pricing

Qty Low High
1+ $1.01 $1.01
10+ $0.93 $0.93
50+ $0.79 $0.79
100+ $0.71 $0.71
250+ $0.65 $0.65
500+ $0.49 $0.49
2,500+ $0.49 $0.49
5,000+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

SF-3812TM125T-2 Features

  • Rated for 1.25A continuous current.
  • Slow blow response for surge tolerance.
  • Surface mount 2-SMD package.
  • UL 248-14 compliant.
  • RoHS and halogen free.

SF-3812TM125T-2 Applications

  • Telecom overcurrent protection per Telcordia GR-1089.
  • Used in telecom line cards and equipment.
  • Suitable for low current protection with high surge.

SF-3812TM125T-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the SF-3812TM125T-2?

The current rating is 1.25 A.

What is the voltage rating?

The voltage rating is 600 VAC and 250 VDC.

What is the breaking capacity?

The breaking capacity is 60 A AC and 50 A DC.

What is the response time?

The response time is Slow Blow.

What is the package or case style?

The package is 2-SMD, Square End Block.

What is the operating temperature range?

The operating temperature range is -55°C to +125°C.

Is the SF-3812TM125T-2 RoHS compliant?

Yes, it is RoHS3 compliant.

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