Zy18
Overview
Product sourcing insights & recommendations
The phrase ZY18 primarily refers to a high-power 2.0W Zener diode manufactured by Diotec Semiconductor, commonly housed in a DO-41 axial lead package DiotecDigikeyMouser.
Key Product Insights
- Technical Capabilities: The ZY18 provides precise 18V regulation (16.8V–19.1V range) with a high power dissipation rating of 2.0 Watts, significantly higher than standard 0.5W or 1W models DiotecMouser.
- Core Applications: It is a critical component for industrial controls, battery management systems (BMS), and automotive power delivery units due to its high-temperature resilience (-50°C to +150°C) DigikeyHtec.
- Competitive Edge: While the market shifts toward surface-mount devices (SMD), the ZY18 maintains demand in high-reliability industrial sectors where the mechanical stability of through-hole axial leads is preferred Htec.
Market Trends & Outlook (2026)
- Efficiency Revolution: By 2026, the semiconductor industry is projected to pivot toward power efficiency (performance-per-watt) rather than just raw speed. This trend favors robust regulation components like the ZY18 that minimize standby leakage HtecLinkedin.
- Edge AI & Industrial Growth: The rise of "Physical AI" (robotics and autonomous factory equipment) is a major growth driver, as these systems require local, surge-protected power management at the hardware level HtecRootsanalysis.
- Supply Resilience: Major suppliers like Diotec are expanding European production to mitigate supply chain fragmentation, focusing on Automotive Grade (AEC-Q101) certifications to capture the surging EV infrastructure market Htec.
I have identified several commercial options for 18V Zener diodes and related components. Detailed pricing and supplier information can be found in the attached file.
I've detailed the ZY18 Zener diode's technical profile and market trends. You can continue with:
Zy18 Zener Diode
Products · Top picks & verified manufacturers

Zener Diode SMAZ18 SMAZ18-13-F 1W 18V Marking Code ZJF DO-214AC SMD NEW & Original
Shenzhen Jiexing Weiye Electronic Co., Ltd.🇨🇳CN17 yrs
TZMC3V3-GS18 DIODE ZENER 3.3V 500MW SOD80 2026 New Original

50PCS BZX84C18 BZX84-C18 SOT23 18V Y6 Zener Diode Y6 BZX84C 3V0 3V3 3V6 3V9 4V3 5V1 6V2 7V5 8V2 9V1 Z13 Z14 Z15 Z16 Z1 Y10 Y11

50PCS BZX84C18 BZX84-C18 SOT23 18V Y6 Zener Diode Y6 BZX84C 3V0 3V3 3V6 3V9 4V3 5V1 6V2 7V5 8V2 9V1 Z13 Z14 Z15 Z16 Z1 Y10 Y11
Shenzhen Lonten Technology Co., Limited🇨🇳CN13 yrs
Buy Electronics Components Online DO-204AC, DO-41, Axial ZPY18 Diodes In Stock
Shenzhen Cico Technology Co., Ltd.🇨🇳CN10 yrs
Quanyuantong ZMM18 LL-34 18V 0.5W Glass Chip Zener Voltage Regulator Diode BOM Matching
Shenzhen Quanyuantong Electronics Co., Ltd.verified🇨🇳CN17 yrs
PDZ18B SOD-323 15V Single SMD Zener Diode Voltage Regulator Original in Stock
Shenzhen Kaiyan Technology Co., Ltd.🇨🇳CN1 yr
Manufacturer Channel Single Zener Diodes SOD-123 BZT52C18 WL Buy Online Electronic Components
Shenzhen Yima Yuantian Electronic Technology Co., Ltd.🇨🇳CN1 yr
THJ 1.5W Zener Diode 831B 18V 1SMA5931BT3G/1 5931BT3 DO-214AC
Shenzhen Thj Technology Limited🇨🇳CN13 yrs
SMB5918B Zener diode SMB
Related Searches
Explore more sourcing topics & related categories
Sources & References
23 sources cited · Verified industry data & reports
ZY18 - Zener Diodes
Diotec Semiconductor Germany
ZY18 - Type: Axial - Package: Zener, DO-41, 18V, 2W, ±5% Minimum order. Lead free No Halogen free … 180V, 2W, ±5%
ZY18 Diotec Semiconductor
Mouser Electronics
Specifications ; Ir - Reverse Current: 1 uA ; Length: 5.1 mm ; Product Type: Zener Diodes ; Factory Pack Quantity: Factory Pack Quantity: 5000.
ZY18 Diotec Semiconductor | Single Zener Diodes
DigiKey
ZY18 - Zener Diode 18 V 2 W ±5% Through Hole DO-204AC (DO-41) from Diotec Semiconductor. to Ship 1-3 Days. In-Stock: 2,073 10 $0.24400. Price Ext Price 5,000 $ ...
ZY18 Datasheet(PDF) - Diodes Incorporated
ALLDATASHEET.COM
Description: SILICON POWER ZENER DIODE. ZY18 Product details Features 2 Watt Power Dissipation Zener Voltages from 11V - 200V Graded per International E24 ...
ZY18 DIOTEC SEMICONDUCTOR - Diode: Zener | 2W; 18V
TME
DIOTEC SEMICONDUCTOR ZY18 | Diode: Zener; 2W; 18V; DO41; single diode; Ammo Pack; ZY - This product is available in Transfer Multisort Elektronik.
Diotec Zener diode ZY18 Enclosure type (semiconductors) ...
Conrad Electronic
Technical specifications ; Type. ZY18 ; Product type. Zener diode ; Manufacturer. Diotec ; Z voltage U(Z). 18 V ; Power (max) P(TOT). 2 W.
