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onsemi 3EZ36D5RL
- Part No.:
- 3EZ36D5RL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
3EZ36D5RL.pdf
- Description:
- DIODE ZENER 36V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,900
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Product details
Overview
3EZ36D5RL from onsemi is a 3 W axial-lead Zener diode with nominal zener voltage of 36 V, ±5% tolerance, 21 Ω maximum zener impedance at 22 mA test current, and 75 μA reverse leakage at 27.4 V. It operates from −65°C to +200°C and delivers surge protection up to 98 W for 1 ms in power supply regulation and voltage reference circuits.
For engineers reviewing the 3EZ36D5RL datasheet, pinout, applications, or equivalent options, key selection criteria include steady-state power derating above 75°C, cathode-band polarity identification, DO−41 package compatibility with through-hole PCB layouts, and compliance with JEDEC surge standards for transient overvoltage clamping.
Technical Context
This device belongs to the Surmetic 30 family of silicon-oxide passivated Zener regulators, engineered for stable voltage reference under DC and pulsed load conditions. Its junction-to-lead thermal resistance enables reliable operation at lead temperatures up to 230°C during soldering and supports continuous dissipation of 3 W at TL = 75°C with 3/8″ lead length.
The 3EZ36D5RL exhibits a temperature coefficient of approximately +0.056 mV/°C (derived from Figure 6 for 36 V units), low dynamic impedance (21 Ω @ IZT), and Class 3 ESD robustness (>16 kV HBM). Its 22 mA zener test current and 0.25 mA minimum knee current ensure predictable turn-on behavior in feedback and clamp applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.2–37.8 V @ IZT = 22 mA; ensures precise 36 V regulation within ±5% tolerance across production lots |
| Power Dissipation (PD) | 3 W @ TL = 75°C; requires thermal management when mounted with ≤3/8″ lead length to heat sink |
| Zener Impedance (ZZT) | 21 Ω max @ IZT; maintains tight output voltage stability under varying load currents |
| Reverse Leakage (IR) | 75 μA max @ VR = 27.4 V; minimizes standby power loss in high-impedance bias networks |
| Surge Rating | 98 W @ 1 ms pulse; clamps transient overvoltages without degradation in industrial power rails |
| ESD Rating | Class 3 (>16 kV) per HBM; withstands handling and assembly electrostatic discharge without parameter shift |
| Operating Temperature | −65°C to +200°C; supports deployment in automotive engine compartments and industrial motor drives |
Pinout & Package
DO−41 (Case 59−10) axial-leaded plastic package with cathode indicated by a single color band. Leads are corrosion-resistant, readily solderable, and rated for 230°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated circuit; forms return path for zener current |
| Cathode | Zener breakdown terminal / voltage reference output | Marked with polarity band; supplies stable 36 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees 34.2–37.8 V regulation without post-production trimming in cost-sensitive power supplies |
| Surmetic 30 silicon-oxide passivation | Enables stable long-term VZ drift performance and high reliability in humid or chemically aggressive environments |
| 98 W non-repetitive surge capability | Clamps lightning-induced transients or inductive kickback without failure in AC/DC front-end protection |
| Pb-free packaging option | Meets RoHS Directive 2011/65/EU requirements without compromising thermal or electrical performance |
| DO−41 footprint compatibility | Replaces legacy 1 W Zeners on existing through-hole PCBs while delivering 3× power handling |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Reference |
|---|---|
|
Use Scenario: Stabilizing 36 V auxiliary rail in 48 V battery-powered industrial PLCs with wide ambient temperature swings. IC Role / Device Role / Timing Role: Zener diode providing precision shunt voltage reference for op-amp feedback and supervisor IC thresholds. Use Value: Maintains ±1.5% output accuracy from −40°C to +125°C due to low tempco and 21 Ω dynamic impedance. |
Use Scenario: Clamping CAN transceiver supply rail against load-dump transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting downstream logic from >100 V spikes lasting <100 ms. Use Value: Absorbs 98 W surges without parametric shift, enabling single-device overvoltage protection without TVS array complexity. |
| LED Driver Current Sensing | Programmable Logic Controller Input Protection |
|
Use Scenario: Setting reference voltage for constant-current LED string drivers in outdoor signage with 36 V bus architecture. IC Role / Device Role / Timing Role: Precision voltage reference for current-sense amplifier biasing and DAC output scaling. Use Value: Delivers <75 μA leakage at 27.4 V, minimizing error in high-gain sense paths and preserving driver efficiency. |
Use Scenario: Protecting 24 V digital input modules from field-wiring faults and induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary shunt regulator limiting input voltage to safe levels before optocoupler or MCU GPIO stages. Use Value: Withstands repeated 1 ms surges up to 98 W while maintaining <0.5% VZ shift after 1000 pulses per JEDEC test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | 36 V, ±5%, 5 W rating, DO−41 package, higher IZT = 50 mA, ZZT = 1.5 Ω | Higher power handling but larger thermal footprint; requires greater board area for heatsinking | Select when >3 W continuous dissipation is required and layout allows for enhanced thermal relief |
| BZX85C36 | 36 V, ±5%, 1.3 W rating, DO−41 package, ZZT = 50 Ω @ 20 mA, no surge rating specified | Limited to low-power bias networks; unsuitable for surge-clamp or high-current reference roles | Choose only for space-constrained, low-power analog references where 98 W surge immunity is unnecessary |
Compared with 1N5365B and BZX85C36, the 3EZ36D5RL offers optimal balance of 3 W power density, 21 Ω low-impedance regulation, and documented 98 W surge capability-making it preferred for industrial-grade 36 V reference and clamping where thermal and transient margins are critical.
Availability
3EZ36D5RL is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU voltage reference, and LED driver current sensing requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 3EZ36D5RL 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 3EZ36D5RL belongs to the Surmetic 30 Zener regulator product line, designed specifically for high-reliability voltage reference and transient suppression in harsh-environment power systems where long-term stability and surge resilience are mandatory.
FAQ
What is the zener voltage tolerance of the 3EZ36D5RL?
The 3EZ36D5RL has a nominal zener voltage of 36 V with a guaranteed tolerance of ±5%, corresponding to a range of 34.2 V to 37.8 V when measured at IZT = 22 mA and TA = 25°C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (3EZ4.3D5/D Rev. 4).
Does the 3EZ36D5RL support Pb-free assembly processes?
Yes, the 3EZ36D5RL is available in Pb-free packaging compliant with RoHS Directive 2011/65/EU. The datasheet explicitly states that specifications apply to both standard and Pb-free versions, and the device is rated for soldering at 230°C for 10 seconds at 1/16″ from the case-fully compatible with lead-free reflow and wave soldering profiles.
What is the maximum non-repetitive surge power rating for the 3EZ36D5RL?
The 3EZ36D5RL is rated for 98 W non-repetitive surge power at 1 ms pulse width, as specified in the "Specification Features" section and verified in Figure 3 of the datasheet. This rating applies to single half-sine or rectangular waveforms per JEDEC standards and reflects its suitability for transient overvoltage clamping in industrial power rails.
How is polarity identified on the 3EZ36D5RL package?
The 3EZ36D5RL uses a cathode band marking on the DO−41 plastic body to indicate polarity: the banded end is the cathode terminal, and the unmarked end is the anode. This matches JEDEC DO−41 outline requirements and is confirmed in the "Mechanical Characteristics" and "Marking Diagram" sections of the datasheet.
What is the zener impedance of the 3EZ36D5RL at its test current?
The 3EZ36D5RL has a maximum zener impedance (ZZT) of 21 Ω at its specified test current of IZT = 22 mA, as listed in the Electrical Characteristics table on page 3. This low dynamic impedance ensures minimal output voltage variation under changing load conditions in precision reference applications.
3EZ36D5RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 22 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 27.4 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
3EZ36D5RL FAQ
1.How can I place an order for 3EZ36D5RL through Aetrix?
Please submit a Request for Quotation (RFQ) for 3EZ36D5RL 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 3EZ36D5RL reliable?
The price and inventory of 3EZ36D5RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3EZ36D5RL is usually 5 days.
3.What payment methods are accepted for 3EZ36D5RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3EZ36D5RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3EZ36D5RL?
3EZ36D5RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3EZ36D5RL 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 3EZ36D5RL?
For technical support, including 3EZ36D5RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3EZ36D5RL requirements.
6.How does Aetrix verify that 3EZ36D5RL is sourced from the original manufacturer or authorized distributors?
All 3EZ36D5RL 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 3EZ36D5RL meets industry standards.
7.What is the process for return or replacement of 3EZ36D5RL?
All 3EZ36D5RL units undergo pre-shipment inspection (PSI). If there is an issue with 3EZ36D5RL, 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 3EZ36D5RL part is unused and in its original packaging.
Return procedure for 3EZ36D5RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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