Rubidium Atomic Clock

Product Overview

Features:

Miniaturization

+5V Power Supply

Compatible with SA.3X Series Atomic Clocks

Key Specifications:

Frequency Accuracy: Better than 5E-11

Frequency Drift Rate: Better than 5E-12

Frequency Reproducibility: Better than 2E-11

MTBF: > 10,000h

Dimensions: 50.8 x 50.8 x 18 mm³

Steady-State Power Consumption: Less than 6W

Maximum Power Consumption: Less than 20W

Main Applications:

Aerospace, aerospace, communications, networking

Technical Indicators

	Performance Indicator	QT40G CPT Atomic Clock	QT45 Chip-Scale Clock	QT55 CPT Clock	QT31 Clock
1	Output Frequency	10 MHz	10 MHz 16.384 MHz 20 MHz 24.576 MHz	10 MHz	10 MHz
2	Factory Frequency Offset	≤±5E-11	≤±5E-11	≤±5E-11	≤±5E-11
	Frequency Stability	≤1E-10/s ≤3E-11/10s ≤1E-11/100s	≤3E-10/s ≤1E-10/10s ≤3E-11/100s	≤5E-11/s ≤3E-11/10s ≤1E-11/100s	≤5E-11/s ≤1.8E-11/10s ≤7E-12/100s
4	Frequency Drift Rate	≤1E-11/24h	≤3E-11/24h	≤5E-12/24h	≤5E-12/24h
	After 1 Day of Operation	≤8E-10	≤1E-9	≤1E-9	≤4E-11
5	Frequency Temperature Coefficient	(-5~60°C)	(-55~+80°C)	(-10~+70°C)	(-40~80°C)
		≤2E-10 (+20~+40°C)
6	Frequency Accuracy (Locked to External 1PPS after 2h)	≤±1E-12/24h	≤±1E-12/24h	≤±1E-12/24h	—
7	Lock Time at Startup	≤5 min	≤4 min	≤10 min	≤7 min (at room temp) ≤15 min (-5°C)
8	Holdover Performance (after 24h disciplining)	≤3μs/24h	≤5μs/24h	≤1μs/24h	—
9	Power Consumption	Steady: ≤2W (3.3V) Peak: ≤5W (3.3V)	Steady: <130 mW (3.3V)	Steady: <3W (12V) Peak: ≤14W (12V)	Steady: ≤6W (5V) Peak: ≤20W (5V)
10	Operating Temperature	-55~+80°C	-10~+70°C	-40~+80°C	-5~+60°C
11	Dimensions (mm)	41 × 35 × 12	41 × 35 × 12	50.8 × 50.8 × 17.8	50.8 × 50.8 × 25

Related News

Oct. 28, 2025

Core Select Products | Crystal Oscillators: The Hidden "Intelligent" Power of Industrial Control

At the world's first humanoid robot games, every precise turn and every flawless coordination showcased the latest breakthroughs in industrial intelligence. Behind these astonishing technological feats lies a beating heart: an industrial-grade crystal oscillator.

Learn More +

Oct. 28, 2025

The Importance of Time Synchronization Servers in the Financial Sector

With the continuous advancement of technology, the financial industry is undergoing a continuous digital transformation. In this process, the application of time synchronization technology has become particularly important. As an efficient and reliable time synchronization device

Learn More +

Oct. 28, 2025

Chip Express | SYNC's Domestic Atomic Clock: How a "Chinese Chip" Precision Drives the Internet of Everything Era?

CNOOC recently successfully overcame the world-class challenge of developing offshore reef limestone oil fields. This breakthrough was achieved thanks to SYNC's chip-based atomic clocks, which provide high-precision time and frequency support for its submarine exploration equipment.

Learn More +

E - Mail

sales@zjsaisi.com

Call Me

+86 152 6830 7576

Add.

No. 1376, Shunze Road, Nanhu District, Jiaxing City, Zhejiang Province