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onsemi 1N5341B
- Part No.:
- 1N5341B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341B.pdf
- Description:
- DIODE ZENER 6.2V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,036
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Product details
Overview
1N5341B from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 6.2 V, ±5% tolerance, maximum zener impedance of 200 Ω at 1 mA test current, and surge rating of 765 A at 8.3 ms. It operates as a precision voltage reference or shunt regulator in low-power DC power supplies, overvoltage protection circuits, and voltage-clamping applications.
For engineers reviewing the 1N5341B datasheet, pinout, applications, or equivalent options, key selection criteria include its 6.2 V nominal regulation, 200 Ω dynamic impedance at IZT = 1 mA, 0.1 µA leakage at VR = 12.4 V, 200 mA maximum DC zener current, and compatibility with standard axial-lead PCB mounting and wave soldering at 260°C for 10 seconds.
Technical Context
The 1N5341B uses a silicon-oxide passivated junction to achieve tight voltage tolerance and stable regulation across temperature. Its zener voltage is specified at two test currents (10% and 50% of IZM), ensuring consistent performance under varying load conditions.
Thermal management relies on junction-to-lead conduction through 3/8″ axial leads, with θJL = 25 °C/W at TL = 25°C. The device supports pulsed operation up to +200°C (non-repetitive) and continuous operation up to +150°C, with ESD robustness exceeding 16 kV per Human Body Model.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal, 5.89–6.51 V range (±5%); defines precise clamping threshold in shunt regulation |
| Power Dissipation (PD) | 5 W at TL = 25°C; sets maximum continuous power handling before thermal derating |
| Zener Impedance (ZZT) | 200 Ω max @ IZT = 1 mA; determines regulation stiffness and output voltage ripple sensitivity |
| Leakage Current (IR) | 0.1 µA max @ VR = 12.4 V; ensures minimal standby current in high-impedance bias networks |
| Surge Current (IR) | 765 A peak @ 8.3 ms; enables transient overvoltage suppression without failure |
| Max DC Zener Current (IZM) | 200 mA; derived from PD/VZ, limits sustained current in active regulation mode |
| ESD Rating | Class 3 (>16 kV HBM); provides robust handling during board assembly and field service |
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, lead diameter uncontrolled within 0.94–1.09 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in shunt configuration; establishes reference ground path |
| Cathode | Zener breakdown terminal / Regulation output node | Connected to regulated voltage rail; delivers stable 6.2 V when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables ±5% VZ tolerance and stable long-term regulation without parameter drift |
| Void-free thermosetting plastic case | Provides environmental sealing against moisture, dust, and chemical exposure in industrial enclosures |
| 260°C solderability | Supports automated wave and reflow processes without delamination or internal damage |
| Pb-free construction (G suffix) | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 3 moisture sensitivity |
Applications
| Low-Voltage Power Supply Reference | Overvoltage Clamp for Microcontroller I/O |
|---|---|
Use Scenario: Stabilizing feedback voltage in 5 V linear regulator circuits where cost-sensitive, fixed-voltage reference is required. IC Role / Device Role / Timing Role: Shunt regulator providing precise 6.2 V reference to error amplifier input. Use Value: Maintains ±1% output regulation despite ±10% input variation and 10–100 mA load changes due to low ZZT and tight VZ tolerance. | Use Scenario: Protecting 3.3 V or 5 V GPIO pins from accidental 12 V supply misconnection or ESD transients. IC Role / Device Role / Timing Role: Passive clamp limiting pin voltage to 6.2 V + forward drop, diverting excess current to ground. Use Value: Survives 765 A surge events at 8.3 ms while holding clamped voltage below IC absolute maximum ratings. |
| Temperature-Stable Bias Network | Programmable Threshold Detector |
Use Scenario: Generating stable bias current for op-amp input stages in automotive cabin sensors operating from −40°C to +125°C ambient. IC Role / Device Role / Timing Role: Zener-based current source with series resistor, leveraging low tempco region near 6.2 V. Use Value: Delivers <100 ppm/°C current variation over full temperature range due to favorable VZ tempco near zero crossing. | Use Scenario: Setting trip point for comparator-based battery undervoltage lockout at 6.0 V threshold in portable medical devices. IC Role / Device Role / Timing Role: Precision voltage reference feeding non-inverting input of rail-to-rail comparator. Use Value: Enables 50 mV hysteresis design with guaranteed 6.2 V ±310 mV accuracy, meeting IEC 60601-1 safety margin requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | Same 6.2 V nominal, but 1 W power rating and higher ZZT (10 Ω vs 200 Ω); TO-204AA package | Lower power dissipation limits use to ≤100 mA loads; less suitable for high-current clamping | Select 1N5341B when >1 W continuous regulation or high-surge immunity is required |
| BZX55-C6V2 | 6.2 V nominal, 500 mW rating, 60 Ω ZZT @ 5 mA; DO-35 glass package | Smaller footprint but lower surge rating (100 A vs 765 A); not rated for 260°C soldering | Choose 1N5341B for industrial environments requiring Pb-free compliance, high-temp soldering, and transient robustness |
Compared with 1N4735A and BZX55-C6V2, the 1N5341B delivers 5× higher power handling and 7.6× greater surge current capability-critical for automotive load-dump protection and industrial power supply reference stability under line surges.
Availability
1N5341B is available at Aetrix Electronics and suitable for low-voltage power supply references, overvoltage clamps, temperature-stable bias networks, and programmable threshold detectors requiring stable component supply and RoHS-compliant sourcing.
Supply support for 1N5341B 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 energy-efficient semiconductor solutions, specializing in analog, discrete, and power management devices for automotive, industrial, and cloud infrastructure markets.
The 1N53 Series is designed as a high-reliability, 5 W Zener regulator family targeting cost-sensitive yet robust voltage reference and protection functions in harsh-environment power systems.
FAQ
What is the nominal zener voltage and tolerance of the 1N5341B?
The 1N5341B has a nominal zener voltage of 6.2 V with a guaranteed tolerance of ±5%, corresponding to a minimum of 5.89 V and maximum of 6.51 V at IZT = 1 mA and TA = 25°C. This tight tolerance is achieved via silicon-oxide passivated junction technology and is validated across production lots per onsemi's quality standards.
Can the 1N5341B be used in surface-mount designs?
No, the 1N5341B is an axial-lead device in Case 017AA plastic package and is not compatible with SMT assembly. It requires through-hole mounting with 3/8″ lead length for thermal derating compliance. For SMT alternatives, consider the SMAZ6.2 or NZ9F6V2, but note differences in power rating and surge capability versus the 1N5341B.
What is the maximum allowable surge current for the 1N5341B?
The 1N5341B supports a peak non-repetitive surge current of 765 A at an 8.3 ms pulse width, as specified in the onsemi datasheet. This value is measured under standardized test conditions (TA = 25°C, mounting contact located 3/8″–1/2″ from diode body) and reflects its suitability for transient overvoltage suppression in power rails.
How does thermal derating affect the 1N5341B's power dissipation above 25°C?
The 1N5341B derates linearly at 40 mW/°C above TL = 25°C, reducing maximum steady-state power from 5 W to zero at TL = 150°C. This derating is based on its junction-to-lead thermal resistance of 25 °C/W and must be applied using measured lead temperature-not ambient-to ensure reliability in enclosed or high-temperature environments.
Is the 1N5341B RoHS compliant and what does the 'G' suffix indicate?
Yes, the 1N5341B is RoHS compliant. The 'G' suffix in ordering codes (e.g., 1N5341BG) explicitly denotes Pb-free packaging per JEDEC J-STD-609A, with no lead content in solderable terminations or mold compound. All 1N5341B units supplied by Aetrix Electronics carry this designation and meet EU Directive 2011/65/EU requirements.
1N5341B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.2 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
1N5341B FAQ
1.How can I place an order for 1N5341B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341B 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 1N5341B reliable?
The price and inventory of 1N5341B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341B is usually 5 days.
3.What payment methods are accepted for 1N5341B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341B?
1N5341B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341B 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 1N5341B?
For technical support, including 1N5341B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341B requirements.
6.How does Aetrix verify that 1N5341B is sourced from the original manufacturer or authorized distributors?
All 1N5341B 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 1N5341B meets industry standards.
7.What is the process for return or replacement of 1N5341B?
All 1N5341B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341B, 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 1N5341B part is unused and in its original packaging.
Return procedure for 1N5341B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341B 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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