My Inquiry
My Account
onsemi 3EZ24D5RLG
- Part No.:
- 3EZ24D5RLG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
3EZ24D5RLG.pdf
- Description:
- DIODE ZENER 24V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,937
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3EZ24D5RLG from ON Semiconductor is a 3 W axial-lead Zener diode with nominal Zener voltage of 24 V (±5%), maximum Zener impedance of 31 Ω at 9 mA test current, and surge rating of 98 W for 1 ms. It operates across −65°C to +200°C and is used for overvoltage protection and voltage reference in DC power supplies.
For engineers reviewing the 3EZ24D5RLG datasheet, pinout, applications, or equivalent options, key selection factors include its DO−41 package thermal performance, 24 V regulation tolerance, 0.25 mA leakage at 18.2 V, and Class 3 ESD rating (>16 kV HBM).
Technical Context
This device uses silicon-oxide passivated junction technology to achieve stable Zener breakdown with low dynamic impedance and high surge robustness. Its thermal design relies on lead-to-ambient conduction, with steady-state power derating starting at 75°C for 3/8″ lead length.
The 3EZ24D5RLG exhibits a negative temperature coefficient typical of mid-voltage Zeners (~−1.5 mV/°C near 24 V), requiring junction temperature estimation via measured lead temperature and transient thermal resistance curves per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8 V min / 24 V nom / 25.2 V max at IZT = 9 mA - defines regulation band under standard test conditions |
| Zener Impedance (ZZT) | 31 Ω max at IZT = 9 mA - determines output voltage variation under load current changes |
| Leakage Current (IR) | 0.25 mA max at VR = 18.2 V - sets minimum reverse bias threshold before significant conduction |
| Surge Power Rating | 98 W for 1 ms pulse - enables transient overvoltage clamping without failure |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - ensures robustness during handling and board assembly |
| Operating Temperature | −65°C to +200°C - supports deployment in automotive engine compartments and industrial control enclosures |
Pinout & Package
Package: DO−41 (Case 59−10), axial-leaded plastic package with cathode indicated by polarity band. Lead length standardized at 3/8″ for thermal ratings; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration; carries forward current up to 200 mA |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; sustains reverse breakdown at 24 V and dissipates regulated power |
Key Features
| Feature | Design Value |
|---|---|
| 3 W steady-state power dissipation @ TL = 75°C | Enables compact overvoltage protection without heatsinking in space-constrained PCB layouts |
| Surmetic 30 silicon-oxide passivated junction | Delivers stable Zener voltage with low long-term drift and high reliability in humid environments |
| Pb-free compliant construction | Meets RoHS Directive 2011/65/EU without compromising thermal or electrical performance |
| Void-free transfer-molded plastic case | Provides mechanical integrity and moisture resistance for outdoor or industrial enclosure use |
Applications
| DC Power Supply Regulation | Overvoltage Clamp Circuit |
|---|---|
|
Use Scenario: Stabilizing 24 V rail in industrial PLC I/O modules where input voltage varies ±15%. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp output voltage and absorb excess energy. Use Value: Maintains 24 V ±0.5 V regulation under 10–100 mA load variations using only passive components. |
Use Scenario: Protecting microcontroller GPIO pins from 36 V transients induced by relay coil flyback. IC Role / Device Role / Timing Role: Fast-acting shunt element that conducts surge current away from sensitive inputs. Use Value: Limits pin voltage to ≤25.2 V during 1 ms surges up to 98 W, preventing latch-up or oxide damage. |
| Reference Voltage Source | Automotive Body Control Module |
|
Use Scenario: Providing stable 24 V reference for analog-to-digital converter calibration in battery management systems. IC Role / Device Role / Timing Role: Precision voltage reference with known temperature coefficient and low dynamic impedance. Use Value: Enables <1% full-scale error in 12-bit ADC measurements across −40°C to +125°C ambient range. |
Use Scenario: Suppressing load-dump spikes (up to 60 V, 100 ms) on 24 V vehicle power networks. IC Role / Device Role / Timing Role: Primary clamping device in parallel with bulk capacitance to limit bus voltage excursion. Use Value: Absorbs >95% of 60 V/100 ms spike energy within rated surge capability, protecting downstream regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352BRLG | Same 24 V nominal Zener voltage but 5 W rating; larger DO−15 package; ZZT = 11 Ω at 45 mA | Better suited for higher-power regulation where thermal margin is critical | Select when >3 W continuous dissipation or lower impedance is required; requires PCB layout change |
| BZX85C24 | 24 V Zener in DO−41 package but 1.3 W rating; ZZT = 40 Ω at 5 mA; no Class 3 ESD rating | Lower-cost option for non-critical, low-energy clamping | Choose only for cost-sensitive consumer applications with benign ESD environments |
Compared with 1N5352BRLG and BZX85C24, the 3EZ24D5RLG delivers optimal balance of 3 W power handling, 31 Ω impedance, and Class 3 ESD robustness in the industry-standard DO−41 footprint-making it preferred for industrial and automotive-grade 24 V regulation where reliability and surge immunity are prioritized over raw power or lowest cost.
Availability
3EZ24D5RLG is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and embedded sensor interface circuits requiring stable component supply and long-term lifecycle support.
Supply support for 3EZ24D5RLG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ON Semiconductor is a global semiconductor supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud computing, and IoT applications.
The 3EZ24D5RLG belongs to the Surmetic 30 Zener regulator family, engineered for ruggedized voltage reference and transient suppression in harsh-environment power systems.
FAQ
What is the Zener voltage tolerance of the 3EZ24D5RLG?
3EZ24D5RLG has a Zener voltage tolerance of ±5%, specified as 22.8 V minimum, 24 V nominal, and 25.2 V maximum at 9 mA test current (IZT). This tolerance is guaranteed across the full operating temperature range and reflects the "D5" suffix designation per ON Semiconductor's ordering nomenclature.
Can the 3EZ24D5RLG be used in surface-mount designs?
No-the 3EZ24D5RLG is an axial-leaded DO−41 device (Case 59−10) and is not compatible with SMT reflow processes. It requires through-hole mounting with 3/8″ lead length for rated 3 W power dissipation. For SMT alternatives, consider ON Semiconductor's NZ9F24V or similar SOD-123 packaged Zeners.
What is the maximum reverse leakage current for the 3EZ24D5RLG?
The maximum reverse leakage current for 3EZ24D5RLG is 0.25 mA at VR = 18.2 V (75% of nominal Zener voltage), per the Electrical Characteristics table. This value is guaranteed at TA = 25°C and remains below 1 mA up to 125°C ambient per typical curves in the datasheet.
How does the 3EZ24D5RLG handle repetitive surge events?
The 3EZ24D5RLG is rated for non-repetitive 98 W surges at 1 ms duration. For repetitive pulses, derating must follow the transient thermal resistance curve (Figure 2) and duty cycle limits. Continuous operation above 3 W requires heatsinking or forced-air cooling to maintain TJ ≤ 200°C.
Is the 3EZ24D5RLG RoHS-compliant?
Yes-3EZ24D5RLG is manufactured in Pb-free compliance per JEDEC J-STD-609 and meets EU RoHS Directive 2011/65/EU. The "RLG" suffix explicitly denotes RoHS-compliant, halogen-free, and green packaging per ON Semiconductor's product marking convention.
3EZ24D5RLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 9 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 18.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
3EZ24D5RLG FAQ
1.How can I place an order for 3EZ24D5RLG through Aetrix?
Please submit a Request for Quotation (RFQ) for 3EZ24D5RLG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 3EZ24D5RLG reliable?
The price and inventory of 3EZ24D5RLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3EZ24D5RLG is usually 5 days.
3.What payment methods are accepted for 3EZ24D5RLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3EZ24D5RLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3EZ24D5RLG?
3EZ24D5RLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3EZ24D5RLG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 3EZ24D5RLG?
For technical support, including 3EZ24D5RLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3EZ24D5RLG requirements.
6.How does Aetrix verify that 3EZ24D5RLG is sourced from the original manufacturer or authorized distributors?
All 3EZ24D5RLG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 3EZ24D5RLG meets industry standards.
7.What is the process for return or replacement of 3EZ24D5RLG?
All 3EZ24D5RLG units undergo pre-shipment inspection (PSI). If there is an issue with 3EZ24D5RLG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 3EZ24D5RLG part is unused and in its original packaging.
Return procedure for 3EZ24D5RLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3EZ24D5RLG Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
