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Johnson-Cinch Connectivity Solutions 1450901821 RF Connector

The SMK 50 Ohm Connectors with 2.92mm interface are precision RF connectors designed for high-frequency applications up to 40 GHz. They feature stainless steel bodies with gold-plated finishes, beryllium copper contacts, PTFE support beads, and silicone rubber seal rings for optimal electrical performance and durability. These connectors meet MIL-STD-348 standards, offering a maximum engagement force of 2 inch-pounds, mating torque of 7-10 inch-pounds, and durability over 500 cycles. Suitable for semi-rigid cable connections, they ensure minimal insertion loss and excellent VSWR characteristics, even at high frequencies.

Authorized Distributors
Source:DigiKey
Part No:145-0901-821
Stock:235
Inv Date:05-30-2026
Price: Unit price: $45.71
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Source:DigiKey
Part No:145-0901-821
Stock:4
Inv Date:05-30-2026
Price: Unit price: $73.68
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Part No:145-0901-821
Stock:197
Inv Date:05-31-2026
Price: Unit price: $43.02
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Part No:145-0901-821
Stock:0
Inv Date:05-30-2026
Price: Unit price: $45.71
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Part No:145-0901-821
Stock:0
Inv Date:05-30-2026
Price: Unit price: $45.74
Buy/RFQ:
Part No:145-0901-821
Stock:0
Inv Date:05-30-2026
Price: Unit price: $45.74
Buy/RFQ:

Johnson-Cinch Connectivity Solutions 1450901821 RF Connector Specifications:

  • Impedance: 50 ohms
  • Frequency Range: 0-40 GHz
  • VSWR: Semi-rigid connectors, 0.20 Max at GHz
  • Contact Material: Beryllium copper with gold plating
  • Body Material: Stainless steel, gold plated
  • Seal Rings: Silicone rubber
  • Insert Loss: 0.03 dB tested at 6 GHz
  • Durability: 500 cycles minimum
  • Mating Engagement: MIL-STD-348, Series SMK (2.92mm)
  • Mating Force: 2 inch-pounds maximum
  • Coupling Torque: 7-10 inch-pounds
  • Working Voltage: 335 VRMS at sea level, 85 VRMS at 70K feet
  • Temperature Range: -65°C to +165°C
  • Environmental Resistance: MIL-STD-202 compliant
  • Return Loss: typical less than -20 dB at 40 GHz
  • Insulation Resistance: >5000 MΩ
  • RF Leakage: minimum -90 dB at 2.5 GHz

Buy the Emerson SMK 1450901821 – Reliable RF Connectors for Industrial Applications

Discover the high-performance RF connector designed for demanding industrial and communication applications. The Emerson SMK series features stainless steel bodies, gold-plated contacts, and silicone rubber seals to ensure optimal electrical conductivity, durability, and environmental resistance. Capable of operating up to 40 GHz with minimal insertion loss and excellent VSWR, these connectors are perfect for semi-rigid cables and high-frequency signal transmission. Secure your high-quality RF solutions today by purchasing online for fast delivery and professional support.

Get Emerson SMK 1450901821 today—built for precision and long-lasting durability in high-frequency RF applications.

Frequently Asked Questions

Where can I buy Johnson-Cinch Connectivity Solutions 1450901821?

You can click on the BUY or RFQ button to purchase 1450901821 from an authorized Johnson-Cinch Connectivity Solutions distributor.

How do I troubleshoot issues or seek technical support for part 1450901821?

You can download the 1450901821 datasheet or visit the Johnson-Cinch Connectivity Solutions website for support.

Who is the manufacturer of 1450901821?

Johnson-Cinch Connectivity Solutions

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