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onsemi 3EZ15D5RL
- Part No.:
- 3EZ15D5RL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
3EZ15D5RL.pdf
- Description:
- DIODE ZENER 15V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,915
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Product details
Overview
3EZ15D5RL from ON Semiconductor is a 3 W axial-lead Zener diode with nominal zener voltage of 15 V (±5% tolerance), 50 Ω maximum zener impedance at 5.5 mA test current, and 1.33 A maximum DC zener current - used for precision voltage regulation and overvoltage protection in power supply feedback loops and reference circuits.
For engineers reviewing the 3EZ15D5RL datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DO−41 package dimensions, thermal derating behavior, surge capability (98 W @ 1 ms), and ESD rating (>16 kV HBM) critical for robust design-in.
Technical Context
The 3EZ15D5RL operates as a silicon-oxide passivated junction Zener regulator in steady-state and transient conditions. Its 15 V nominal breakdown voltage is specified at IZT = 5.5 mA with ±5% tolerance, and it maintains regulation down to IZK = 0.25 mA where dynamic impedance rises to 700 Ω.
Thermal performance is defined by lead-length-dependent derating: full 3 W dissipation at TL = 75°C (3/8″ lead length), linearly derated to 1 W at TA = 50°C. Surge capability follows JEDEC non-repetitive 1/120 s sine-equivalent waveform standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.25–15.75 V @ IZT = 5.5 mA - defines regulated output range for feedback networks requiring tight voltage reference stability |
| Zener Impedance (ZZT) | 50 Ω max @ IZT = 5.5 mA - determines AC regulation error under load transients in shunt regulator topologies |
| Max DC Zener Current (IZM) | 1.33 A - sets absolute upper limit for continuous reverse conduction without thermal runaway |
| Surge Power Rating | 98 W @ 1 ms pulse - enables transient overvoltage clamping in input-stage protection circuits |
| ESD Rating (HBM) | >16 kV - ensures handling robustness during PCB assembly and field service without parametric shift |
| Operating Temperature | −65°C to +200°C - supports deployment in automotive engine compartments and industrial motor drives |
| Package | DO−41 (Case 59), axial-leaded plastic - compatible with through-hole wave soldering and manual rework using 230°C/10 s profile |
Pinout & Package
3EZ15D5RL uses the standard DO−41 axial-leaded package (Case 59), with cathode identified by a painted band on the body. Leads are tinned, corrosion-resistant, and solderable per IPC-J-STD-006. Maximum lead temperature is 230°C at 1/16″ from case for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in shunt configuration | Connected to ground or lower potential node; carries forward current up to 200 mA (VF ≤ 1.5 V) |
| Cathode | Zener breakdown terminal / high-side connection in shunt configuration | Connected to regulated node; sustains reverse bias up to 15.75 V and conducts IZM = 1.33 A continuously |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables stable leakage current (IR ≤ 0.5 μA @ VR = 11.4 V) and long-term parameter retention across temperature cycles |
| Surmetic 30 construction | Delivers 98 W non-repetitive surge rating - exceeds standard 1 W Zeners by >3× for transient suppression in AC line inputs |
| ±5% zener tolerance (D5 suffix) | Reduces need for post-production trimming in voltage reference designs targeting 1% system accuracy |
| Pb-free compliant packaging | Meets RoHS Directive 2011/65/EU without derating or performance compromise - suitable for export-controlled industrial systems |
| Void-free transfer-molded plastic case | Provides IP54-level environmental resistance against moisture, dust, and flux residue in unenclosed power supplies |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for Microcontroller I/O |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference element setting precise 15 V threshold for TL431-like control IC biasing. Use Value: Tight 14.25–15.75 V tolerance ensures <±1% output regulation across line/load variations without external trimming. | Use Scenario: Protecting 3.3 V or 5 V GPIO pins from accidental 12–24 V miswiring or ESD events. IC Role / Device Role / Timing Role: Shunt clamp absorbing transient energy before it reaches sensitive CMOS input structures. Use Value: 98 W surge rating handles 1 ms inductive kickback pulses without degradation, extending system MTBF. |
| Industrial Sensor Reference Voltage | DC Link Voltage Monitoring |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage source referenced to system ground with minimal temperature drift. Use Value: Low 50 Ω zener impedance minimizes output variation under sensor bridge current draw (≤5 mA), improving measurement resolution. | Use Scenario: Detecting overvoltage faults on 12–48 V DC bus lines in motor drives and battery management systems. IC Role / Device Role / Timing Role: Threshold detector triggering shutdown logic when bus exceeds safe operating window. Use Value: −65°C to +200°C operating range ensures reliable operation near heat-generating IGBTs without calibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5245BRLG | 500 mW rating, 15 V ±5%, DO−35 package, 17 Ω ZZT @ 10 mA | Lower power handling limits use to low-current references only; unsuitable for >100 mA shunt loads | Select when board space is constrained and thermal budget permits <0.5 W dissipation |
| BZX55C15-TR | 500 mW rating, 15 V ±5%, DO−35, 30 Ω ZZT @ 5 mA, 100 nA IR @ 12 V | Superior leakage performance but no surge rating specification - not recommended for transient-prone environments | Select when ultra-low leakage dominates over surge immunity in battery-powered sensor nodes |
Compared with 1N5245BRLG and BZX55C15-TR, the 3EZ15D5RL provides triple the power rating (3 W vs. 0.5 W), validated 98 W surge capability, and wider temperature range - making it the only option qualified for industrial power supply and motor drive protection roles.
Availability
3EZ15D5RL is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and DC bus monitoring systems requiring stable component supply with full traceability and lifecycle support.
Supply support for 3EZ15D5RL 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 (now onsemi) is a global semiconductor supplier focused on energy-efficient electronics, delivering power management, analog, sensor, and connectivity solutions.
The 3EZ15D5RL belongs to the Surmetic 30 Zener series - engineered for high-reliability voltage regulation in harsh environments, with emphasis on surge resilience, wide temperature operation, and Pb-free manufacturability.
FAQ
What is the zener voltage tolerance for 3EZ15D5RL?
The 3EZ15D5RL has a nominal zener voltage of 15 V with a guaranteed tolerance of ±5%, meaning its actual breakdown voltage falls between 14.25 V and 15.75 V when measured at IZT = 5.5 mA and TA = 25°C. This tolerance is indicated by the "D5" suffix in the part number and applies to all units in the production lot without binning.
Can 3EZ15D5RL be used in surface-mount designs?
No, the 3EZ15D5RL is exclusively offered in the axial-leaded DO−41 (Case 59) package and is not available in SMD variants. It requires through-hole mounting with 3/8″ lead length for full 3 W power dissipation. For SMT alternatives, consider the 1SMA5925BT3G (15 V, 1.5 W, SMA package), but note its lower surge rating and narrower temperature range compared to the 3EZ15D5RL.
What is the maximum allowable surge current for 3EZ15D5RL?
The 3EZ15D5RL supports a non-repetitive peak reverse surge current of 1.33 A, derived from its 98 W surge power rating at 1 ms pulse width. This value corresponds to the maximum instantaneous current the device can withstand without parametric shift or bond-wire failure, assuming proper lead-to-heat-sink thermal path and ambient conditions per Figure 3 in the official datasheet.
How does thermal derating work for 3EZ15D5RL at elevated temperatures?
The 3EZ15D5RL derates linearly above 75°C lead temperature: its steady-state power dissipation drops by 24 mW/°C beyond that point. At 100°C lead temperature, maximum allowable PD is 2.4 W. Derating is based on 3/8″ lead length to heat sink; shorter leads increase thermal resistance and require more aggressive derating per Figure 1 in the datasheet.
Is 3EZ15D5RL RoHS-compliant and halogen-free?
Yes, the 3EZ15D5RL is manufactured in a Pb-free, RoHS-compliant process and meets JESD204B halogen-free requirements. The plastic encapsulant contains no brominated flame retardants or chlorine-based additives, and the tinned copper leads comply with EU Directive 2011/65/EU Annex II maximum concentration values for restricted substances.
3EZ15D5RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 5.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 11.4 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
3EZ15D5RL FAQ
1.How can I place an order for 3EZ15D5RL through Aetrix?
Please submit a Request for Quotation (RFQ) for 3EZ15D5RL 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 3EZ15D5RL reliable?
The price and inventory of 3EZ15D5RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3EZ15D5RL is usually 5 days.
3.What payment methods are accepted for 3EZ15D5RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3EZ15D5RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3EZ15D5RL?
3EZ15D5RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3EZ15D5RL 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 3EZ15D5RL?
For technical support, including 3EZ15D5RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3EZ15D5RL requirements.
6.How does Aetrix verify that 3EZ15D5RL is sourced from the original manufacturer or authorized distributors?
All 3EZ15D5RL 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 3EZ15D5RL meets industry standards.
7.What is the process for return or replacement of 3EZ15D5RL?
All 3EZ15D5RL units undergo pre-shipment inspection (PSI). If there is an issue with 3EZ15D5RL, 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 3EZ15D5RL part is unused and in its original packaging.
Return procedure for 3EZ15D5RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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