HEROTEK Zero-Bias Schottky Diode Detectors 100kHz-50GHz | DZR50024A DZR400KA DZM265AA Supplier
The HEROTEK Zero-Bias Schottky Diode Detector Series is a family of high-performance RF and microwave detectors covering frequencies from 100 kHz to 50 GHz. Designed with advanced zero-bias Schottky diode technology, these detectors require no external bias supply, providing excellent sensitivity, low VSWR, and outstanding frequency flatness for precision power measurement applications.
HEROTEK's DZR, DZM, and DZ Series detectors are widely used in RF test equipment, transmitter monitoring, radar systems, laboratory measurements, and microwave communication systems.

Key Features
Frequency range from 100 kHz to 50 GHz
No external bias required
Excellent input matching and low VSWR
Extremely flat frequency response
High sensitivity output
Compact coaxial package design
Wide operating temperature range:
DZR Series: -55°C to +100°C
DZM & DZ Series: -45°C to +85°C
Shock rating: 50G, 11 ms
Vibration rating: 20G, 100–2000 Hz
CW input power up to 200 mW (DZR and DZM Series)
Typical Applications
Precision RF Test Equipment
RF Power and Signal Monitoring
Transmitter Monitoring Systems
Radar and Missile Guidance Systems
Laboratory Measurements
Microwave Communication Systems
Automatic Test Equipment (ATE)
5G mmWave Testing
Satellite Communications (SATCOM)
Electronic Warfare and Defense Systems
Models and Specifications
| MODEL | FREQUENCY RANGE | MAXIMUM VSWR | MAXIMUM FLATNESS (土dB) | LOW LEVEL SENSITIVITY (mV/μW) | CONNECTOR | SIZE (INCHES) | ||
| INPUT | OUTPUT | LENGTH | dia | |||||
| DZR124AA | 10 MHz-12.4 GHz | 1.25:1 | 0.3 | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZR124AC | SMA(M) | SMC(M) | 1.47 | 0.32 | ||||
| DZR185AA | 10 MHz-18.5 GHz | 1.25:1 | 0.5 | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZR185AC | SMA(M) | SMC(M) | 1.47 | 0.32 | ||||
| DZR265AA | 10 MHz-26.5 GHz | 1.3:1(to 18.5 GHz) 2.0:1 (to 26.5 GHz) | 0.5 (to 18.5GHz) 1.0 (to 26.5GHz) | 0.5 | SMA(M) | SMA(F | 1.05 | 0.32 |
| DZR265AC | SMA(M) | SMC(M) | 1.47 | 0.32 | ||||
| DZM020AA | 100 KHz-2.0 GHz | 1.3:1 | 0.1 (per 100KHz) 0.3(overall) | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZM020BB | BNC(M) | BNC(F) | 2.48 | 0.68 | ||||
| DZM040AA | 100KHZ-4.0GHz | SMA(M) | SMA (F) | 1.05 | 0.32 | |||
| DZM040BB | BNC(M) | BNC(F) | 2.48 | 0.68 | ||||
| DZM124AA | 10 MHz-12.4 GHz | 1.2:1 (to 4.5 GHz) 1.3:1 (to 7 GHz) 1.4:1 (to 12.4 GHz) | 0.2 (per octave) 0.5(overall) | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZM124AB | SMA(M) | BNC(F) | 2.50 | 0.56 | ||||
| DZM124NB | Type N(M) | BNC(F) | 2.46 | 0.75 | ||||
| DZM185AA | 10 MHz-18.5 GHz | 1.2:1(to 4 GHz) 1.5:1(to 18.5 GHz) | 0.2 (per octave to 8 GHz) 0.3 (for 10MHz to 8 GHz) 0.5(overll) | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZM185AB | SMA(M) | BNC(F) | 2.50 | 0.56 | ||||
| DZM185AB2 | SMA(M) | BNC(F) | 1.89 | 0.39 | ||||
| DZM185AC | SMA(M) | SMC(M) | 1.20 | 0.32 | ||||
| DZM185NB | Type N(M) | BNC(F) | 2.46 | 0.75 | ||||
| DZM1857B | APC-7 | BNC(F) | 2.59 | 0.75 | ||||
| DZM265AA | 10 MHz-26.5 GHz | 12:1(to 4 GHz) 1.5:1 (to 18 GHz) 1.8:1 (to 26.5 GHz) | 0.2 (per octave to 8 GHz) 0.5 (for 10 MHz to 18 GHz) 10(overall) | 0.5 | SMA(M) | SMA (F) | 1.05 | 0.32 |
| DZM265AB | SMA(M) | BNC(F) | 1.89 | 0.39 | ||||
| DZM265AC | SMA(M) | SMC(M) | 1.20 | 0.32 | ||||
| DZM2653B | APC3.5 (M) | BNC(F) | 1.89 | 0.39 | ||||
| DZM2653C | APC3.5 (M) | SMC(M) | 1.70 | 0.38 | ||||
| DZR400KA | 10 MHz-40 GHz | 1.3:1 (to 18 GHz) 1.8:1 (to 40 GHz) | 0.3(to 18 GHz) 0.6(to 26 GHz) 1.0(to 40 GHz) | 0.4 | K*(M)2.9mm) | SMA(F) | 1.30 | 0.32 |
| DZR400K | K*(M)(2.9mm) | BNC(F) | 1.89 | 0.39 | ||||
| DZR400KC | K* (M)(2.9mm) | SMC(M) | 1.35 | 0.32 | ||||
| DZR50024A | 10 MHz-50 GHz | 1.3:1 (to 18 GHz) 1.6:1 (to 26 GHz) 1.8:1 (to 40 GHz 2.0:1 (to 50 GHz) | 0.3(to 18 GHz) 0.6(to 26 GHz) 0.8 (to 40 GHz 1.0(to 50 GHz) | 0.5 | 2.4mm(M) | SMA(F | 1.32 | 0.32 |
| DZR50024B | 2.4mm(M) | BNC(F) | 1.91 | 0.39 | ||||
| DZR50024C | 2.4mm(M) | SMC(M) | 1.36 | 0.32 | ||||
| DZ1018 | 1 GHz-18.0 GHz | 8.0:1(Typical) | 1.0 (Typical) | 1.8 | SMA(M) | SMA (F) | 1.16 | 0.32 |
| DZ1026 | 1 GHz-26.0 GHz | 8.0:1(Typical) | 1.5(Typical) | 1.6 | SMA(M) | SMA (F) | 1.16 | 0.32 |
Herotek is an established American manufacturer of RF and microwave components. Its product range covers frequencies from DC to 75GHz, and its product line includes detectors, amplifiers, limiters, PIN switches, signal generators, etc. CORE is a distributor for HEROTEK's products,If you need to know more about and purchase DELTA inductor products, you can consult CORE customer service or fill out the RFQ.



