What are the primary electrical ratings?

It features a 2A hold current, 4A trip current, 24V maximum voltage, and 40A maximum fault current.

What should be considered during PCB assembly?

The device is designed for SMT reflow soldering. Avoid hand soldering if possible; if necessary, keep the iron at least 1.5mm away from the device and limit contact time to 3 seconds at temperatures below 350°C.

Is this device suitable for automotive applications?

Yes, it is rated for automotive and industrial control environments, provided the operating temperature remains within the -40°C to +85°C range.

What are the sourcing risks?

The part is widely available with high stock levels, but users should ensure the manufacturer's humidity sensitivity (MSL 2) requirements are met during storage.

What is the pinout of BSMD1812-200-24V?

Use the BSMD1812-200-24V datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about BSMD1812-200-24V pinout to locate pins, power rails, and interface signals before layout.

BSMD1812-200-24V Datasheet, Specs, Alternatives & ECAD | bhfuse

AI summary

The BSMD1812-200-24V is a 2A/24V surface-mount PTC resettable fuse in an 1812 package, ideal for compact overcurrent protection.

Best for

Consumer electronics
Automotive controls
Battery protection

Avoid if

Applications requiring long-term continuous charging current
Environments exceeding 85°C

Check before use

Reflow profile compatibility
Thermal derating at high ambient temperatures

Key specifications

Hold Current: 2A
Trip Current: 4A
Max Voltage: 24V
Max Time to Trip: 2s

Compliance & Environment

RoHS: RoHS

Application

AutomotiveConsumer ElectronicsIndustrial

Datasheet

01ab048d637e85f60745b3730dc27ee9.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BSMD1812-200-24V: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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Land pattern for PCB layout

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KiCad Library

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Alternative components

Part	Details	Match
BSMD1812-200-30VBHFUSE	Same 1812 PPTC series with 2A hold and higher 30V rating; confirm trip curve before use.	Needs validation

BSMD1812-200-33VBHFUSE	Same 1812 PPTC series with 2A hold and higher 33V rating; verify curve and layout.	Needs validation
JK-MSMD200-24VJinrui Electronic Materials Co.	Cross-vendor 1812 PPTC matches 24V and 2A/4A ratings but has lower stated Pd.	Needs validation
SMD1812-200C-30VBNstar	1812 PPTC with higher 30V rating and matching 2A/4A currents; lower Pd needs review.	Needs validation
BSMD1812-300-24VBHFUSE	Same 1812 series but 3A/6A ratings raise the protection threshold.	Needs validation

Design and risk insights

Questions & answers

It is a polymer PTC (Positive Temperature Coefficient) resettable fuse designed to protect electronic circuits from overcurrent faults.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the BSMD1812-200-24V?+×

What are the primary electrical ratings?+×

What should be considered during PCB assembly?+×

Is this device suitable for automotive applications?+×

What are the sourcing risks?+×

What is the pinout of BSMD1812-200-24V?+×