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onsemi 1N5353BG
- Part No.:
- 1N5353BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353BG.pdf
- Description:
- DIODE ZENER 16V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:456
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Product details
Overview
1N5353BG 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 across −65 °C to +200 °C, features Pb-free Surmetic 40 plastic packaging, and delivers stable voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N5353BG datasheet, pinout, applications, or equivalent options, key selection criteria include its 16 V nominal zener voltage, 75 Ω dynamic impedance at IZT, ±5% tolerance, ESD rating >16 kV (HBM), and 5 W steady-state power dissipation capability under lead-temperature-controlled conditions.
Technical Context
The 1N5353BG uses a silicon-oxide passivated junction for improved stability and low leakage. Its zener voltage is specified at IZT = 2.5 mA with tight ±5% tolerance and exhibits a positive temperature coefficient above 5 V, typical for 16 V devices.
It supports non-repetitive surge currents up to 295 A (8.3 ms), has a junction-to-lead thermal resistance of 25 °C/W, and maintains regulation down to IZK = 1 mA with ZZK ≤ 75 Ω - enabling reliable operation in transient-suppression and precision biasing roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2–16.8 V @ IZT = 2.5 mA; ensures stable 16 V reference under nominal bias |
| Power Dissipation (PD) | 5 W @ TL = 25 °C; defines maximum continuous DC power handling with 3/8″ lead length |
| Zener Impedance (ZZT) | 75 Ω max @ IZT = 2.5 mA; limits output voltage variation under load changes |
| Leakage Current (IR) | 0.3 mA max @ VR = 12.2 V; guarantees low standby power loss in high-impedance bias networks |
| Surge Current (IRM) | 295 A peak @ 8.3 ms; enables robust transient suppression without device failure |
| ESD Rating | Class 3 (>16 kV) per HBM; supports handling in uncontrolled assembly environments |
| Operating Temp Range | −65 °C to +200 °C; suitable for under-hood automotive, industrial, and aerospace applications |
Pinout & Package
Package: Axial-lead Surmetic 40 plastic case (JEDEC CASE 017AA), void-free transfer-molded thermosetting material with corrosion-resistant leads and cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common or lower-potential node; establishes reverse-bias orientation for regulation |
| Cathode | Zener voltage output terminal / regulated voltage source | Delivers stable 16 V reference when reverse-biased; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees tight 15.2–16.8 V regulation window without post-manufacture trimming |
| 75 Ω max Zener impedance at 2.5 mA | Minimizes output voltage sag under dynamic load steps in feedback and reference circuits |
| 295 A surge rating (8.3 ms) | Withstands IEC 61000-4-5 line transients without degradation in power rail protection |
| Pb-free Surmetic 40 package | Meets RoHS compliance and supports lead-free reflow/soldering at 260 °C (10 s) |
| −65 °C to +200 °C operating range | Enables deployment in extreme-environment applications including engine control and downhole electronics |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 16 V reference for linear regulator feedback or ADC reference buffer. IC Role / Device Role / Timing Role: Zener diode acting as two-terminal shunt voltage reference. Use Value: Delivers <±1% regulation error over temperature due to predictable 16 V nominal voltage and low ZZT. |
Use Scenario: Clamping 24 V rail against surges exceeding 18 V during load dump or inductive kick. IC Role / Device Role / Timing Role: Shunt protection device limiting voltage excursion to safe levels. Use Value: Absorbs 295 A transient energy (8.3 ms) without failure, protecting downstream MOSFETs and controllers. |
| Bias Network Stabilization | Temperature-Compensated Reference |
|
Use Scenario: Setting precise bias point for op-amp input stages or transistor amplifiers. IC Role / Device Role / Timing Role: Passive voltage-setting element in high-impedance DC bias network. Use Value: Low 0.3 mA leakage at 12.2 V ensures minimal current draw and stable quiescent point. |
Use Scenario: Paired with negative-tempco diode to create near-zero TC reference in sensor front-ends. IC Role / Device Role / Timing Role: Positive-TC component in complementary zener–diode compensation topology. Use Value: Exhibits +3.5 mV/°C tempco (typical for 16 V units), enabling accurate cancellation with silicon diodes. |
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 SnPb lead finish; not RoHS-compliant | Restricted to legacy non-RoHS production; incompatible with lead-free assembly | Select only if Pb-containing process is mandated and no reflow compatibility constraints exist |
| MMBZ5245BS | SOT-23 package, 15 V nominal, 500 mW rating, 17 Ω ZZT | Lower power, surface-mount only; unsuitable for 5 W dissipation or through-hole layouts | Choose for space-constrained PCBs where 500 mW suffices and layout allows SMT placement |
Compared with 1N5353BG, the 1N5353B lacks Pb-free compliance and requires SnPb soldering, while MMBZ5245BS trades power handling and through-hole compatibility for miniaturization - making 1N5353BG optimal for robust, high-power, RoHS-compliant axial designs.
Availability
1N5353BG is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and bias network stabilization requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5353BG 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 supplier of high-performance silicon solutions, specializing in energy-efficient power management, analog, sensing, and connectivity technologies.
The 1N53 series belongs to onsemi's Surmetic 40 Zener regulator family, designed for high-reliability voltage reference and transient suppression in automotive, industrial, and telecom power systems.
FAQ
What is the nominal zener voltage and tolerance of the 1N5353BG?
The 1N5353BG has a nominal zener voltage of 16 V with a guaranteed tolerance of ±5%, meaning its actual zener voltage falls between 15.2 V and 16.8 V when tested at IZT = 2.5 mA and TA = 25 °C. This tight tolerance eliminates need for external trimming in most reference applications and is confirmed in onsemi's Rev. 19 datasheet, Table on page 3.
What is the maximum steady-state power dissipation for the 1N5353BG?
The 1N5353BG is rated for 5 W maximum steady-state power dissipation at lead temperature (TL) = 25 °C with 3/8″ lead length. Derating is required above 25 °C at 40 mW/°C, and junction-to-lead thermal resistance is fixed at 25 °C/W - all values verified in the "Maximum Ratings" table of the official onsemi datasheet.
Does the 1N5353BG have a Pb-free package?
Yes, the 'G' suffix in 1N5353BG explicitly denotes a Pb-free Surmetic 40 axial package compliant with RoHS Directive 2011/65/EU. The device uses lead-free terminations and meets onsemi's Pb-free strategy, with maximum soldering temperature rated at 260 °C for 10 seconds at 1/16″ from case - per datasheet Mechanical Characteristics section.
What is the zener impedance of the 1N5353BG and why does it matter?
The 1N5353BG has a maximum zener impedance (ZZT) of 75 Ω at IZT = 2.5 mA. This value directly determines how much the output voltage varies with changes in current - lower ZZT means tighter regulation. At 75 Ω, the 1N5353BG maintains stable 16 V output even under moderate load transients, as confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet.
Can the 1N5353BG be used for surge protection?
Yes, the 1N5353BG is rated for up to 295 A non-repetitive surge current at 8.3 ms pulse width, making it suitable for clamping transient overvoltages in DC power rails. Its 5 W power rating and robust Surmetic 40 package allow repeated surge absorption without parametric shift - validated in Figure 5 and the "Maximum Ratings" table of the onsemi 1N53 Series datasheet.
1N5353BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- 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
1N5353BG FAQ
1.How can I place an order for 1N5353BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353BG 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 1N5353BG reliable?
The price and inventory of 1N5353BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353BG is usually 5 days.
3.What payment methods are accepted for 1N5353BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5353BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5353BG?
1N5353BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353BG 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 1N5353BG?
For technical support, including 1N5353BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353BG requirements.
6.How does Aetrix verify that 1N5353BG is sourced from the original manufacturer or authorized distributors?
All 1N5353BG 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 1N5353BG meets industry standards.
7.What is the process for return or replacement of 1N5353BG?
All 1N5353BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353BG, 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 1N5353BG part is unused and in its original packaging.
Return procedure for 1N5353BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5353BG Tags
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