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HID 3251PNNMN iCLASS SE Key II RFID Keyfob - Blue/Black ABS/TPE - 13. 56 MHz - 256 Byte Memory

SKU: 3251PNNMN
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MSRP: $21.08
$21.08
$11.99
Save: $9.09 (43.12%)
Warranty Information: Lifetime
Condition: New
Width: 1.23 (cm)
Height: 1.23 (cm)
Depth: 1.23 (cm)

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Product Features

Description

Product Overview

The HID 3251PNNMN iCLASS SE Key II is a compact RFID keyfob designed for secure access control in HID iCLASS SE systems. This durable credential combines a small form factor with robust construction, making it ideal for environments where portability and reliability are essential.

Featuring a blue and black color scheme, the keyfob is built from ABS thermoplastic and TPE elastomer materials, offering resistance to everyday wear and tear. Its lightweight design and ergonomic shape ensure comfortable handling, while the 13.56 MHz operating frequency and 256-byte memory provide the technical foundation for seamless integration into existing access control infrastructures.

Dimensions
Width
1.25" (31.80 mm)
Weight
0.01 lb
Length
1.54" (39 mm)
RFID Specifications
Operating Frequency13.56 MHz
Memory Size256 Byte
Physical Profile
Dimensions1.54" x 1.25" x 0.24" (39 x 31.8 x 6 mm)
Weight0.01 lb (4 g)
MaterialAcrylonitrile Butadiene Styrene (ABS), Thermoplastic Elastomer (TPE)
Brand and Warranty
WarrantyLifetime

Technical Overview

This keyfob operates at 13.56 MHz, a standard frequency for proximity-based access control, ensuring compatibility with HID iCLASS SE readers. The 256-byte memory capacity supports secure data storage for authentication protocols, enabling encrypted communication between the keyfob and reader systems.

With dimensions of 1.54 inches in length, 1.25 inches in width, and 0.24 inches in thickness, the keyfob is engineered for minimal bulk without sacrificing durability. The approximate weight of 0.01 pounds (4 grams) enhances portability, making it easy to attach to keyrings or carry in pockets for daily use.

This section brings together practical product details such as Smart Card/Tag Width, Smart Card/Tag Length, Smart Card/Tag Thickness, Memory Size, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.

Operating Frequency13.56 MHz
Memory Size256 Byte
Dimensions1.54" x 1.25" x 0.24"
RFID TagiCLASS SE CompatibleCompact Design

Key Product Advantages

The keyfob's compact size and lightweight build offer practical advantages for users who need a convenient access credential. Its blue and black coloring provides visual distinction, aiding in quick identification among other keys or devices.

Durable Construction

Made from ABS thermoplastic and TPE elastomer, this keyfob resists impacts, moisture, and temperature variations, ensuring long-term performance in diverse environments.

  • ABS material for rigidity
  • TPE for flexibility and grip
  • Resistant to wear and tear

Secure Access Integration

Designed for HID iCLASS SE systems, it supports encrypted authentication, reducing the risk of unauthorized access and enhancing overall security posture.

  • 13.56 MHz frequency for reliable reads
  • 256-byte memory for secure data
  • Compatible with iCLASS SE infrastructure

Deployment / Use Cases

This keyfob is tailored for deployment in access control scenarios where HID iCLASS SE technology is implemented. It serves as a reliable credential for employees, visitors, or contractors requiring secure entry to buildings, rooms, or restricted areas.

Common use cases include corporate offices, educational institutions, healthcare facilities, and industrial sites. Its durability makes it suitable for high-traffic environments, while the small form factor ensures it integrates seamlessly into daily routines without adding bulk to keychains or pockets.

Corporate Security

Ideal for office buildings, providing employees with a secure, easy-to-carry credential for door access, parking gates, and elevator controls.

Educational and Healthcare

Used in schools and hospitals to manage access to sensitive areas, ensuring only authorized personnel can enter while maintaining a low-profile design.

Physical Profile

The keyfob measures 1.54 inches in length, 1.25 inches in width, and 0.24 inches in thickness, with an approximate weight of 0.01 pounds (4 grams). This compact profile allows for easy attachment to standard keyrings, lanyards, or clips, promoting convenient access without compromising on durability. The blue and black ABS/TPE construction not only enhances aesthetics but also provides a tactile grip, reducing the likelihood of drops in busy settings.

Color
Blue,Black
Dimensions
Width
1.25" (31.80 mm)
Weight
0.01 lb
Length
1.54" (39 mm)
[custom-highlights]

Highlights

  • HID iCLASS SE Key II RFID keyfob for secure access control
  • Compact dimensions: 1.54" x 1.25" x 0.24" (39 x 31.8 x 6 mm)
  • Lightweight at 0.01 lb (4 g) for easy portability
  • 13.56 MHz operating frequency ensures reliable proximity reads
  • 256-byte memory supports encrypted authentication data
  • Durable ABS thermoplastic and TPE elastomer construction
  • Blue and black color scheme for visual distinction
  • Lifetime warranty for long-term reliability and support
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerHID Global Corporation
Manufacturer Part Number3251PNNMN
Brand NameHID
Product LineiCLASS
Product Model3251
Product NameiCLASS SE Key II
Product TypeRFID Tag
Product Information
Smart Card/Tag Width1.25" (31.80 mm)
Smart Card/Tag Length1.54" (39 mm)
Smart Card/Tag Thickness0.24" (6 mm)
Media Weight0.01 lb
Operating Frequency13.56 MHz
Memory
Memory Size256 Byte
Physical Characteristics
Product ColorBlue,Black
Product MaterialAcrylonitrile Butadiene Styrene (ABS),Thermoplastic Elastomer (TPE)
Weight (Approximate)4 g
Warranty
Limited WarrantyLifetime
[/custom-specifications][custom-faq]

FAQ

What is the operating frequency of the HID 3251PNNMN keyfob?

The keyfob operates at 13.56 MHz, which is a standard frequency for RFID-based access control systems. This frequency ensures compatibility with HID iCLASS SE readers, providing reliable and secure communication for authentication purposes in various environments.

How much memory does this RFID keyfob have?

It features 256 bytes of memory. This capacity is used to store encrypted data necessary for secure authentication with HID iCLASS SE systems, helping to prevent unauthorized access and enhance the overall security of your access control infrastructure.

What materials is the keyfob made from?

The keyfob is constructed from Acrylonitrile Butadiene Styrene (ABS) thermoplastic and Thermoplastic Elastomer (TPE). ABS provides rigidity and impact resistance, while TPE adds flexibility and a comfortable grip, making it durable enough to withstand daily use in diverse conditions.

What are the dimensions and weight of this keyfob?

It measures 1.54 inches in length, 1.25 inches in width, and 0.24 inches in thickness, with an approximate weight of 0.01 pounds (4 grams). This compact and lightweight design makes it easy to carry on keyrings or in pockets without adding bulk, ideal for frequent access needs.

Is this keyfob compatible with HID iCLASS SE systems?

Yes, the HID 3251PNNMN is designed specifically for integration with HID iCLASS SE access control systems. It uses the 13.56 MHz frequency and 256-byte memory to support encrypted authentication, ensuring seamless operation with compatible readers and infrastructure.

What warranty does this product come with?

This keyfob includes a lifetime limited warranty from HID. This warranty covers defects in materials and workmanship, providing long-term assurance of reliability and support for your access control investment, which is particularly valuable in security-critical deployments.

[/custom-faq]
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HID 3251PNNMN iCLASS SE Key II RFID Keyfob - Blue/Black ABS/TPE - 13. 56 MHz - 256 Byte Memory
MSRP: $21.08
$21.08
$11.99
Save: $9.09 (43.12%)
Out of stock