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ZY24
Diotec Semiconductor
ZENERDIODE,DO-41,24V,2W,5%
30123 Pcs New Original In Stock
Zener Diode 24 V 2 W ±5% Through Hole DO-41/DO-204AC
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5.0 / 5.0
- (486 Ratings)
ZY24
Product Overview
12944690
DiGi Electronics Part Number
ZY24-DGManufacturer
Diotec Semiconductor
ZY24
Description
ZENERDIODE,DO-41,24V,2W,5%Inventory
30123 Pcs New Original In Stock
Zener Diode 24 V 2 W ±5% Through Hole DO-41/DO-204AC
Quantity
Minimum 1
Minimum 1
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ZY24 Technical Specifications
Category
Diodes, Zener, Single Zener Diodes
Packaging
Strip
Series
-
Product Status
Active
Voltage - Zener (Nom) (Vz)
24 V
Tolerance
±5%
Power - Max
2 W
Impedance (Max) (Zzt)
7 Ohms
Current - Reverse Leakage @ Vr
1 µA @ 12 V
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Through Hole
Package / Case
DO-204AC, DO-41, Axial
Supplier Device Package
DO-41/DO-204AC
Datasheet & Documents
Datasheets
Download ZY24 Product Specification (PDF)
HTML Datasheet
ZY24-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Additional Information
Other Names
2721-ZY24
Standard Package
30
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
他們的售後服務真的很貼心，任何問題都能得到快速解決，讓人很放心購買！
Dec 02, 2025
Ils offrent une gestion de stock exemplaire et un service après-vente très professionnel.
Dec 02, 2025
Delivery times are consistently met, which I truly appreciate.
Dec 02, 2025
The variety of options available from DiGi Electronics truly supports a wide range of customer needs.
Dec 02, 2025
DiGi Electronics always provides competitive prices and timely logistics, which keeps me coming back.
Dec 02, 2025
My order was dispatched promptly and arrived ahead of the estimated delivery date.
Dec 02, 2025
The diverse offerings at DiGi Electronics meet all my technological needs.
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Frequently Asked Questions (FAQ)
How does the ZY24 Zener diode's impedance of 7 Ohms affect voltage regulation stability in high-noise analog circuits?
The ZY24's maximum Zzt of 7 Ohms makes it suitable for moderate-noise environments, but in high-frequency or high-noise analog designs, this impedance can allow small ripple voltages to pass. For improved regulation, pair the ZY24 with a bypass capacitor (e.g., 10 µF tantalum + 100 nF ceramic) near the load. Be cautious in precision feedback loops—consider active regulation if load current varies significantly, as the ZY24's dynamic impedance may introduce regulation errors above 50 mA.
Can I replace a BZX85C24 with the ZY24 in an existing power supply design without adjusting current limiting resistors?
Yes, the ZY24 is a functionally equivalent alternative to the BZX85C24 with the same 24 V ±5%, 2 W rating and DO-41 package. However, verify the actual Zener current in your circuit. The ZY24 has a similar Zzt (7 Ohms max vs. 10 Ohms for BZX85C24), but slightly better thermal stability. Retain the original series resistor value if operating between 5 mA and 100 mA; beyond that, recalculate to stay within 80% of the 2 W power derating limit, especially above 75°C ambient.
What derating guidelines should I follow when using the ZY24 in industrial applications near 100°C ambient temperature?
For reliable operation of the ZY24 in high-temperature environments, apply a 50% power derating above 75°C ambient. At 100°C, limit power dissipation to 1 W instead of the full 2 W. Ensure adequate PCB copper for heat dissipation—attach the ZY24 to at least 100 mm² of 1 oz copper trace per lead or use short leads with airflow. Avoid enclosed enclosures without ventilation, as the 150°C max TJ can be reached quickly with sustained 24 V regulation at 60+ mA.
Is the ZY24 suitable for overvoltage protection in a 24 V DC sensor interface, and how does leakage current impact low-power standby modes?
The ZY24 can be used for overvoltage clamping in 24 V DC systems, but ensure peak transient power does not exceed 2 W. Use a series fuse or PTC for sustained faults. Its 1 µA leakage at 12 V is low, but in battery-powered sensor nodes, this may contribute to standby current drain. For energy-sensitive designs, add a series Schottky diode or low-leakage MOSFET switch to isolate the ZY24 during sleep modes, preventing cumulative leakage in multi-sensor arrays.
How does the ZY24 compare to the 1N4749A in terms of voltage accuracy and thermal performance for use in voltage reference circuits?
The ZY24 and 1N4749A both regulate at 24 V ±5% with 2 W power, but the ZY24 offers lower Zzt (7 Ohms max vs. 40 Ohms for 1N4749A), resulting in better line regulation and less output drift under varying loads. The ZY24’s tighter thermal resistance profile improves stability in fluctuating environments. For precision references, the ZY24 is preferable, but always regulate current via a constant current source to minimize thermal runaway risk, especially in sealed enclosures.
Quality Assurance (QC)
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ZY24 CAD Models
Diotec Semiconductor ZY24 PCB symbols & footprints
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