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onsemi 1N5353BRL
- Part No.:
- 1N5353BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353BRL.pdf
- Description:
- DIODE ZENER 16V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
1N5353BRL from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 16 V (±5%), maximum zener impedance of 75 Ω at 2.5 mA test current, and surge rating of 295 A at 8.3 ms. It operates from −65°C to +200°C and is used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N5353BRL datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance, thermal resistance (25°C/W), leakage current (0.3 mA at 12.2 V), and Pb-free axial package compatibility with wave soldering at 260°C.
Technical Context
This device uses silicon-oxide passivated junction technology to achieve tight voltage regulation and high ESD robustness (Class 3, >16 kV HBM). Its zener voltage is specified at IZT = 2.5 mA with guaranteed min/typ/max values of 15.2 V / 16 V / 16.8 V.
The 1N5353BRL exhibits a positive temperature coefficient above 5 V (≈+4.5 mV/°C per Figure 3), supports DC zener current up to 75 mA, and maintains stable regulation under transient surges up to 180 W for 8.3 ms with no degradation in performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal (15.2–16.8 V range); enables precise 16 V reference in feedback networks |
| Power Dissipation | 5 W at TL = 25°C; derates 40 mW/°C above 25°C for thermal design margin |
| Zener Impedance | 75 Ω max at IZT = 2.5 mA; ensures low dynamic resistance for stable regulation |
| Leakage Current | 0.3 mA max at VR = 12.2 V; minimizes standby power loss in high-impedance bias networks |
| Surge Current | 295 A peak at 8.3 ms; withstands line transients without failure |
| Junction-to-Lead RθJL | 25 °C/W; defines thermal path from junction to lead for heatsinking calculations |
| Operating Temp Range | −65°C to +200°C; supports automotive under-hood and industrial control environments |
Pinout & Package
Package: Axial-lead, transfer-molded plastic (Case 017AA), cathode indicated by band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter, leads 25.4–31.75 mm long.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential node in reverse-biased regulation configuration |
| Cathode | Zener breakdown terminal | Marked with band; connects to regulated output node in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables tighter voltage tolerance and improved long-term stability vs. non-passivated Zeners |
| ESD rating Class 3 (>16 kV HBM) | Eliminates need for external ESD protection in board-level handling and assembly |
| Surge rating up to 180 W @ 8.3 ms | Handles repetitive line surges without parameter shift or catastrophic failure |
| Pb-free plastic package | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 |
| Guaranteed six-parameter limits | Ensures full specification compliance across VZ, IZM, ZZT, ZZK, IR, and surge current |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated 48 V DC-DC converter to regulate output within ±1%. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 16 V threshold to TL431 error amplifier input. Use Value: Tight 5% VZ tolerance and low 75 Ω impedance ensure <±0.5% output voltage drift over load and line variations. | Use Scenario: Provides excitation voltage for 4–20 mA current-loop pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: Precision 16 V rail for sensor bridge biasing and ADC reference scaling. Use Value: Low 0.3 mA leakage at 12.2 V prevents loading of high-impedance sensor outputs and preserves measurement accuracy. |
| Overvoltage Clamp Protection | Microcontroller I/O Protection |
Use Scenario: Clamps 24 V industrial bus transients to safe levels before entering motor driver gate drivers. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between bus rail and ground, triggered at 16.8 V max. Use Value: 295 A surge capability absorbs 180 W pulses without degradation, protecting downstream MOSFETs. | Use Scenario: Protects 3.3 V microcontroller GPIO pins from accidental 12 V miswiring during field service. IC Role / Device Role / Timing Role: Reverse-biased clamp limiting pin voltage to 16.8 V while sinking fault current. Use Value: Class 3 ESD rating (>16 kV HBM) eliminates need for additional TVS devices on each I/O line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B | Same electrical specs but supplied in 1000-unit box (not tape-and-reel); identical axial Pb-free package | No difference in circuit function or layout; differs only in packaging format and reel orientation | Select 1N5353B for manual prototyping or low-volume hand-soldered builds |
| MMSZ5245B | Surface-mount SOD-123 package; 16 V nominal, 500 mW rating; 30 Ω ZZT at 5 mA | Requires PCB redesign for SMT placement; unsuitable for through-hole or high-power dissipation (>0.5 W) | Choose MMSZ5245B only when board space is constrained and power demand is ≤0.5 W |
Compared with 1N5353BRL, the 1N5353B offers identical performance in a different packaging format ideal for low-volume assembly, while MMSZ5245B trades power handling and thermal robustness for miniaturization-making it viable only in low-dissipation SMT designs.
Availability
1N5353BRL is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, overvoltage protection circuits, and embedded system voltage references requiring stable component supply and full traceability.
Supply support for 1N5353BRL 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1N53 Series belongs to onsemi's Surmetic™ 40 Zener regulator family, engineered for high-reliability voltage reference and clamping in harsh environments where thermal stability, surge immunity, and long-term parametric consistency are critical.
FAQ
What is the exact zener voltage tolerance for 1N5353BRL?
The 1N5353BRL has a ±5% zener voltage tolerance, with guaranteed minimum, nominal, and maximum values of 15.2 V, 16 V, and 16.8 V respectively, measured at IZT = 2.5 mA and TA = 25°C. This tolerance is defined per JEDEC standard and applies to all B-suffix devices in the 1N53 series.
Can 1N5353BRL be used in surface-mount designs?
No, the 1N5353BRL is an axial-lead through-hole device in Case 017AA plastic package and is not compatible with surface-mount assembly processes. For SMT alternatives, consider the MMSZ5245B (SOD-123) or NZ9F16V (SOD-323), both rated for 16 V but with lower power dissipation (500 mW).
What is the maximum continuous zener current for 1N5353BRL?
The maximum DC zener current (IZM) for 1N5353BRL is 75 mA, calculated as 5 W / 16.8 V (max VZ). At 16 V nominal, this corresponds to 312.5 mA - however, the datasheet specifies 75 mA as the absolute maximum to ensure reliability under worst-case voltage and thermal conditions.
Does 1N5353BRL require heatsinking in typical applications?
Heatsinking is not required for 1N5353BRL at ≤5 W dissipation if lead length is maintained at 3/8 inch (9.5 mm) from case to heatsink point, as its junction-to-lead thermal resistance is 25°C/W. For sustained operation near 5 W, mounting leads to a copper pour or chassis improves thermal margin and extends lifetime.
Is 1N5353BRL compliant with RoHS and REACH regulations?
Yes, the 1N5353BRL is Pb-free and fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The "G" suffix in the ordering code confirms Pb-free construction, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 for unlimited floor life at ≤30°C/60% RH.
1N5353BRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 12.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N5353BRL FAQ
1.How can I place an order for 1N5353BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353BRL 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 1N5353BRL reliable?
The price and inventory of 1N5353BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353BRL is usually 5 days.
3.What payment methods are accepted for 1N5353BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5353BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5353BRL?
1N5353BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353BRL 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 1N5353BRL?
For technical support, including 1N5353BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353BRL requirements.
6.How does Aetrix verify that 1N5353BRL is sourced from the original manufacturer or authorized distributors?
All 1N5353BRL 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 1N5353BRL meets industry standards.
7.What is the process for return or replacement of 1N5353BRL?
All 1N5353BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353BRL, 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 1N5353BRL part is unused and in its original packaging.
Return procedure for 1N5353BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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