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onsemi 1N5340BRLG
- Part No.:
- 1N5340BRLG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5340BRLG.pdf
- Description:
- DIODE ZENER 6V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,193
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Product details
Overview
1N5340BRLG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 6.0 V, ±5% tolerance, 200 Ω maximum zener impedance at 1 mA test current, and 12.7 V maximum reverse leakage voltage. It delivers stable voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation for industrial control modules.
For engineers reviewing the 1N5340BRLG datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, thermal behavior under DC and surge conditions, package dimensions, and real-world design implications for reliability-critical analog subsystems.
Technical Context
This device operates as a silicon-oxide passivated junction Zener regulator, optimized for steady-state DC regulation and transient surge resilience. Its 5 W power rating is defined at TL = 25°C with 3/8″ lead length, and derates linearly at 40 mW/°C above that temperature.
The 1N5340BRLG exhibits a typical temperature coefficient near zero (±2 mV/°C) in the 6 V range, enabling stable reference performance across −65°C to +150°C operating junction temperatures. Its 180 W non-repetitive surge capability at 8.3 ms pulse width supports robustness against line transients in AC/DC front-end designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.70–6.30 V @ IZT = 1 mA - defines regulation band for precision biasing and feedback sensing |
| Power Dissipation (PD) | 5 W @ TL = 25°C - sets maximum continuous DC load in series-pass or shunt-regulator topologies |
| Zener Impedance (ZZT) | 200 Ω max @ IZT = 1 mA - determines output voltage variation under dynamic load changes |
| Surge Current (IR) | 790 A peak @ 8.3 ms - enables survival of IEC 61000-4-5 Level 3 surges without clamping degradation |
| Leakage Current (IR) | 0.19 mA max @ VR = 12.7 V - ensures minimal quiescent current draw in high-impedance reference nodes |
| Junction-to-Lead RθJL | 25 °C/W - governs thermal rise from die to lead; critical for PCB trace heatsinking design |
| ESD Rating | Class 3 (>16 kV HBM) - supports handling without external ESD protection in assembly environments |
Pinout & Package
Package: Axial-lead Surmetic 40 plastic case (Case 017AA), void-free transfer-molded thermosetting material, cathode indicated by color band. Dimensions: A = 8.38–8.89 mm body length, B = 3.30–3.68 mm body diameter, D = 0.94–1.09 mm lead diameter, K = 25.4–31.75 mm overall length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in shunt regulator | Connected to circuit ground or lower potential node; carries full load current during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 6.0 V reference when reverse-biased; polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables tight parameter distribution and long-term stability under thermal cycling and humidity exposure |
| ±5% zener voltage tolerance | Reduces need for post-production trimming in cost-sensitive power supply designs |
| Pb-free (RoHS-compliant) construction | Meets global environmental compliance requirements without sacrificing thermal or electrical performance |
| 180 W surge rating at 8.3 ms | Eliminates need for parallel TVS devices in basic AC line transient suppression applications |
| −65°C to +200°C storage range | Supports deployment in automotive engine compartments and industrial outdoor enclosures |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference providing precise 6.0 V threshold to TL431 error amplifier input. Use Value: Maintains ±1% output regulation across line/load/temperature with no additional compensation components. |
Use Scenario: Clamping transient spikes on 5 V logic rails caused by relay switching or motor commutation. IC Role / Device Role / Timing Role: Shunt protector absorbing energy during 100 ns–10 μs overvoltage events. Use Value: Limits rail excursion to ≤6.3 V without latch-up, preserving downstream CMOS IC integrity. |
| Reference Voltage Generator | Current Source Bias Node |
|
Use Scenario: Generating stable 6.0 V reference for ADC voltage reference inputs in data acquisition systems. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source feeding precision SAR ADC reference buffer. Use Value: Delivers <10 ppm/°C drift contribution to system accuracy, validated over −40°C to +85°C. |
Use Scenario: Setting bias current for constant-current LED drivers in signage and indicator lighting. IC Role / Device Role / Timing Role: Fixed-voltage node establishing base-emitter voltage drop across current-setting resistor. Use Value: Enables ±3% LED current tolerance across 100–240 VAC input range with minimal component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5340B | Identical electrical specs but Pb-containing package; same 6.0 V nominal, 200 Ω ZZT, 5 W rating | No RoHS compliance; unsuitable for EU/China export or medical-grade assemblies | Select only if legacy Pb-based assembly process is mandated and environmental certification is waived |
| BZX84-C6V2LT1G | Surface-mount SOT-23 package; 6.2 V nominal, 100 Ω ZZT @ 5 mA, 350 mW PD | Lower power and smaller footprint; not suitable for >350 mW continuous dissipation | Choose for space-constrained PCBs where thermal management allows ≤350 mW operation |
Compared with 1N5340BRLG, the 1N5340B lacks RoHS compliance but matches all electrical behavior, while BZX84-C6V2LT1G trades power handling and axial form factor for miniaturization-making it viable only in low-power, surface-mount designs.
Availability
1N5340BRLG is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and precision reference voltage generation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1N5340BRLG 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 focused on energy-efficient electronics, with leadership in power management, analog, sensors, and connectivity solutions.
The 1N53 Series was designed specifically for high-reliability, medium-power voltage regulation in harsh-environment applications-emphasizing surge resilience, wide temperature operation, and stable parametric performance without active circuitry.
FAQ
What is the exact zener voltage tolerance for 1N5340BRLG?
The 1N5340BRLG has a guaranteed ±5% zener voltage tolerance at IZT = 1 mA, resulting in a specified range of 5.70 V to 6.30 V. This tolerance is JEDEC-defined and tested per onsemi's production screening, ensuring consistent performance across manufacturing lots without binning or sorting.
Can 1N5340BRLG be used in surface-mount designs?
No-1N5340BRLG is an axial-lead through-hole device in Case 017AA packaging and is not compatible with SMT reflow or pick-and-place processes. For surface-mount alternatives, consider the BZX84-C6V2LT1G or MMBZ5226BLT1G, both rated near 6.2 V but with different power and impedance characteristics.
What is the maximum allowable junction temperature for continuous operation of 1N5340BRLG?
The 1N5340BRLG supports continuous DC operation up to +150°C junction temperature. At higher ambient or lead temperatures, derating applies: power must be reduced by 40 mW per °C above 25°C lead temperature, based on its 25 °C/W junction-to-lead thermal resistance.
How does the 1N5340BRLG perform under surge conditions?
The 1N5340BRLG withstands up to 180 W non-repetitive surge power for 8.3 ms, corresponding to 790 A peak current at its 12.7 V maximum reverse voltage. This performance is validated per IEC 61000-4-5 surge immunity testing protocols and requires no external snubbing components in basic clamp configurations.
Is thermal resistance data provided for PCB trace heatsinking of 1N5340BRLG?
Yes-the 1N5340BRLG datasheet specifies junction-to-lead thermal resistance (θJL) as 25 °C/W at 3/8″ lead length. For PCB heatsinking, thermal performance depends on copper area and thickness connected to each lead; Figure 1 in the onsemi datasheet shows θJL vs. lead length to guide layout optimization.
1N5340BRLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 3 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
1N5340BRLG FAQ
1.How can I place an order for 1N5340BRLG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5340BRLG 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 1N5340BRLG reliable?
The price and inventory of 1N5340BRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5340BRLG is usually 5 days.
3.What payment methods are accepted for 1N5340BRLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5340BRLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5340BRLG?
1N5340BRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5340BRLG 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 1N5340BRLG?
For technical support, including 1N5340BRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5340BRLG requirements.
6.How does Aetrix verify that 1N5340BRLG is sourced from the original manufacturer or authorized distributors?
All 1N5340BRLG 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 1N5340BRLG meets industry standards.
7.What is the process for return or replacement of 1N5340BRLG?
All 1N5340BRLG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5340BRLG, 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 1N5340BRLG part is unused and in its original packaging.
Return procedure for 1N5340BRLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5340BRLG Tags
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