# SA-421F5 NF Corporation Differential Amplifier New

**Additional Features:**

-   Frequency range: 30 Hz to 30 MHz
-   Input form: AC coupling, balanced differential input
-   Input impedance: 1MΩ ±5%(kHz)
-   CMRR: 46dB min. 1 kHz to 10 MHz
-   Input voltage noise density: 0.5nV/√Hz (100 kHz)
-   Input noise current density: 0.5nV/√Hz (100 kHz)
-   Max. output voltage: 2Vp-p min./50Ω (1 kHz to 20 MHz)
-   Output impedance: 50Ω ± 5% (100 kHz)
-   Voltage gain: 46 ± 0.5dB / 50Ω (1 kHz)

The SA-421F5 is a preamplifier for submicro-signal detection, which has been developed to assure noise reduction never before accomplished. The SA-421F5 is used to foster versatility as a sensor head amplifier or preamplifier for sensitivity improvement and noise reduction in analyzers and measurement instruments.

**Applications:**

-   Superconducting device in quantum computers
-   MCT (Mercury Cadmium Tellurium) sensor for infrared detection
-   Squid sensor for micro-magnet detection
-   High-temperature superconducting Josephson device for microwave detection
-   Electromagnetic sensor for MRI systems
-   Photodetector such as a photo-multiplier and photo-transistor
-   Improving sensitivity of lock-in amplifiers

## Details

- **Price:** 2400.0 USD
- **Vendor:** NF Corporation
- **Type:** Diff Amp
- **Tags:** Amplifier, Differential, Manufacturers, NF Corporation, Other Equipment, product_manual_group_1, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2400.00 USD | In stock |

## Images

- SA-421F5 NF Corporation Differential Amplifier New

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> Source: [ValueTronics](https://valuetronics.com/products/sa-421f5-nf-corporation-differential-amplifier-new)
> Updated: 2026-05-21