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onsemi 1N5336B
- Part No.:
- 1N5336B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5336B.pdf
- Description:
- DIODE ZENER 4.3V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,867
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Product details
Overview
1N5336B from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 4.3 V, ±5% tolerance, maximum zener impedance of 290 Ω at 2 mA test current, and 16.4 V reverse breakdown voltage at 1 mA leakage threshold - used for precision low-voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N5336B datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.3 V nominal regulation voltage, 290 Ω dynamic impedance at IZT = 2 mA, 1100 A maximum non-repetitive surge current (8.3 ms), ESD rating >16 kV HBM, and compatibility with lead-free reflow up to 260°C.
Technical Context
The 1N5336B operates as a silicon-oxide passivated junction Zener regulator, optimized for stable DC voltage reference under steady-state and transient conditions. Its thermal design relies on junction-to-lead resistance (θJL = 25 °C/W) and axial-lead mounting, enabling dissipation of up to 5 W at TL = 25°C with derating above that temperature.
It exhibits a negative temperature coefficient typical of low-voltage Zeners (<5 V), with voltage regulation validated at both 10% and 50% of IZM (1100 A). The device meets JEDEC JESD22-A114 Class 3 ESD requirements and supports surge currents up to 180 W for 8.3 ms per IEC 61000-4-5 derived testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.3 V nominal (min 4.09 V, max 4.52 V) - defines regulated output voltage under 2 mA test current |
| Power Dissipation (PD) | 5 W at TL = 25°C - sets maximum continuous DC power handling before thermal derating begins |
| Zener Impedance (ZZT) | 290 Ω max @ IZT = 2 mA - determines regulation stiffness and output voltage variation under load changes |
| Leakage Current (IR) | 0.49 µA max @ VR = 16.4 V - ensures minimal standby current in high-impedance bias networks |
| Surge Current (IR) | 1100 A peak @ 8.3 ms - enables robust transient suppression without failure in input-stage protection |
| ESD Rating | Class 3 (>16 kV) per HBM - provides intrinsic electrostatic immunity during board handling and assembly |
| Junction Temp Range | −65°C to +200°C - supports operation in automotive under-hood and industrial ambient environments |
Pinout & Package
Package: Axial-lead, transfer-molded plastic (Case 017AA), cathode indicated by band. Dimensions: 8.38–8.89 mm length (A), 3.30–3.68 mm diameter (B), 0.94–1.09 mm lead diameter (D), 25.4–31.75 mm lead length (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulation circuit; establishes reference ground for shunt regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to higher-potential rail; clamps voltage to 4.3 V when reverse-biased beyond breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables tight parameter distribution (±5% VZ) and long-term stability in humid or corrosive environments |
| 5 W steady-state power rating | Supports direct shunt regulation in low-current auxiliary supplies without external heat sinking |
| 290 Ω max ZZT @ 2 mA | Delivers <1% output deviation across 1–5 mA load range in precision reference applications |
| 16.4 V VR rating | Allows safe operation in 12 V systems with margin against line transients and ripple-induced overshoot |
| Pb-free compliant (G suffix) | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile requirements |
Applications
| Low-Voltage Reference | Input Surge Protection |
|---|---|
Use Scenario: Providing stable 4.3 V reference for ADC biasing, op-amp feedback, or microcontroller reset threshold detection in battery-powered sensors. IC Role / Device Role / Timing Role: Shunt voltage reference diode maintaining fixed potential across high-impedance nodes. Use Value: Enables accurate analog measurement and deterministic logic-level triggering with <±2% total error over −40°C to +85°C. |
Use Scenario: Clamping 12 V rail transients caused by relay switching or motor commutation in automotive body control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing energy spikes before they reach downstream regulators. Use Value: Withstands 1100 A surges (8.3 ms) and limits clamped voltage to ≤4.52 V, protecting 5 V logic interfaces. |
| Linear Regulator Feedback | Overvoltage Lockout |
Use Scenario: Setting output voltage of adjustable linear regulators (e.g., LM317) via resistive divider anchored to 1N5336B cathode. IC Role / Device Role / Timing Role: Precision voltage reference element defining regulation setpoint in closed-loop feedback path. Use Value: Achieves ±1% output accuracy with minimal temperature drift due to matched thermal coupling with regulator IC. |
Use Scenario: Enabling shutdown of DC-DC converters when input exceeds safe operating range in telecom power shelves. IC Role / Device Role / Timing Role: Threshold detector triggering comparator or supervisor IC when cathode voltage exceeds 4.52 V. Use Value: Provides fast, passive overvoltage response (<100 ns) with no external bias required, reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Same 5.1 V nominal voltage but 1 W rating, 17 Ω ZZT @ 49 mA, ±5% tolerance | Lower power handling and higher test current limit it to signal-level references, not power-shunt use | Select 1N5336B when ≥5 W dissipation or low-IZT impedance (<300 Ω) is required |
| BZX84-C4V3 | SOT-23 package, 4.3 V nominal, 300 mW rating, 90 Ω ZZT @ 5 mA, ±5% tolerance | Surface-mount form factor suits space-constrained PCBs but lacks surge robustness and thermal mass | Choose 1N5336B for through-hole reliability, high-energy transients, or legacy board compatibility |
Compared with 1N4733A and BZX84-C4V3, the 1N5336B delivers superior surge immunity (1100 A vs. <100 A), higher power headroom (5 W vs. ≤0.3 W), and lower dynamic impedance at low test currents - making it optimal for ruggedized 4.3 V shunt regulation where thermal and transient margins are critical.
Availability
1N5336B is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom power management requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 1N5336B 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 specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N53 Series belongs to onsemi's Surmetic™ 40 Zener regulator family, engineered for high-reliability voltage reference and transient suppression in harsh-environment applications demanding tight tolerance, high surge capability, and Pb-free compliance.
FAQ
What is the nominal zener voltage and tolerance of the 1N5336B?
The 1N5336B has a nominal zener voltage of 4.3 V with a guaranteed tolerance of ±5%, meaning its actual breakdown voltage falls between 4.09 V and 4.52 V when tested at IZT = 2 mA. This tight tolerance is achieved using silicon-oxide passivated junction technology and is specified per JEDEC standards for B-suffix devices.
Can the 1N5336B be used in surface-mount designs?
No - the 1N5336B uses an axial-lead, through-hole package (Case 017AA) and is not compatible with SMT assembly. For surface-mount alternatives with similar 4.3 V regulation, consider the BZX84-C4V3 (SOT-23) or MMBZ5225B (SOT-23), though these offer lower power ratings (300 mW) and reduced surge capability compared to the 5 W, 1100 A-rated 1N5336B.
What is the maximum non-repetitive surge current rating for the 1N5336B?
The 1N5336B is rated for a maximum non-repetitive surge current of 1100 A at a pulse width of 8.3 ms, corresponding to an energy absorption capability of up to 180 W. This rating is validated per IEC 61000-4-5 derived test conditions and reflects the device's suitability for input-stage transient suppression in 12 V systems.
How does thermal derating affect the 1N5336B's power handling above 25°C?
The 1N5336B's steady-state power dissipation must be derated by 40 mW/°C above TL = 25°C, based on its junction-to-lead thermal resistance of 25 °C/W. At 75°C lead temperature, its usable power drops to 3 W; at 125°C, it falls to 1 W. Proper lead length (≥3/8″) and heatsinking are essential to maintain safe junction temperatures.
Is the 1N5336B RoHS-compliant and lead-free?
Yes - the 1N5336B is offered in a Pb-free package (indicated by the "G" suffix in ordering codes such as 1N5336BG), fully compliant with the EU RoHS Directive 2011/65/EU. It supports standard lead-free reflow profiles with a maximum soldering temperature of 260°C at 1/16″ from the case for 10 seconds, as verified in onsemi's Soldering and Mounting Techniques Reference Manual.
1N5336B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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
1N5336B FAQ
1.How can I place an order for 1N5336B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5336B 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 1N5336B reliable?
The price and inventory of 1N5336B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5336B is usually 5 days.
3.What payment methods are accepted for 1N5336B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5336B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5336B?
1N5336B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5336B 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 1N5336B?
For technical support, including 1N5336B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5336B requirements.
6.How does Aetrix verify that 1N5336B is sourced from the original manufacturer or authorized distributors?
All 1N5336B 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 1N5336B meets industry standards.
7.What is the process for return or replacement of 1N5336B?
All 1N5336B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5336B, 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 1N5336B part is unused and in its original packaging.
Return procedure for 1N5336B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5336B 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
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