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Microchip Technology 1N5341E3/TR12
- Part No.:
- 1N5341E3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341E3/TR12.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,462
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Product details
Overview
1N5341E3/TR12 from Microsemi is a 6.2 V, ±5% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications. It delivers 200 mA maximum Zener current (IZM) at 25°C with 1.0 Ω dynamic impedance (ZZ) and operates across –65°C to +150°C.
For engineers reviewing the 1N5341E3/TR12 datasheet, 1N5341E3/TR12 pinout, 1N5341E3/TR12 application, or 1N5341E3/TR12 equivalent, key selection criteria include its 6.2 V nominal Zener voltage, 5 W steady-state power rating at lead temperature <25°C, low 1.0 Ω dynamic impedance at 200 mA test current, RoHS-compliant matte-tin plating, and T-18 axial package compatibility with standard through-hole PCB assembly.
Technical Context
This device functions as a two-terminal shunt voltage regulator, maintaining stable output voltage by conducting reverse current when reverse bias exceeds its specified Zener breakdown threshold. Its design supports operation at high DC currents with adequate heat sinking, leveraging a low 25 °C/W junction-to-lead thermal resistance at 10 mm lead length.
The 1N5341E3/TR12 exhibits minimal voltage variation versus current-ΔVZ ≤ 0.10 V between 10% and 50% of IZM-and withstands non-repetitive 8.3 ms half-sine surge currents up to 12.4 A, making it suitable for transient suppression in industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±5% at 200 mA - defines precise regulation point for feedback or clamping |
| Power Dissipation | 5.0 W at TL < 25°C (3/8″ lead length) - sets maximum continuous DC power handling with proper heatsinking |
| Dynamic Impedance (ZZ) | 1.0 Ω max at IZT = 200 mA - ensures tight voltage stability under load current variation |
| Max Reverse Current (IR) | 10 μA max at VR = 3.0 V - guarantees low leakage below breakdown threshold |
| Surge Current (IZSM) | 12.4 A peak (8.3 ms half-sine) - enables robust transient energy absorption without failure |
| Thermal Resistance | 25 °C/W junction-to-lead - allows predictable temperature rise under rated current with standard lead mounting |
| Operating Temperature | –65°C to +150°C - supports deployment in automotive engine compartments and industrial enclosures |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL. Cathode indicated by band; device operated with banded end positive relative to unbanded end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail; establishes return path for Zener current |
| Cathode (banded end) | Regulated output node | Connected to voltage node requiring stabilization; sinks current to clamp excess voltage |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity; no dry pack required before reflow |
| Low dynamic impedance (1.0 Ω) | Minimizes output voltage deviation under varying load conditions in feedback networks |
| High surge current rating (12.4 A) | Provides single-event transient immunity without external TVS in cost-sensitive designs |
| Stable regulation over –65°C to +150°C | Enables use in uncontrolled ambient environments without derating penalties below –40°C |
| JEDEC-registered 1N53xx series | Ensures cross-manufacturer interchangeability and standardized mechanical/electrical behavior |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback loop via optocoupler interface. IC Role / Device Role / Timing Role: Shunt reference element providing stable 6.2 V reference to TL431 or similar error amplifier. Use Value: Maintains ±1% output accuracy across line/load/temperature with minimal component count. |
Use Scenario: Clamps 12 V rail against transients induced by relay coil de-energization in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Passive voltage clamp absorbing inductive kick energy before reaching downstream logic ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers without adding active circuitry. |
| Programmable Voltage Reference | DC-DC Converter Output Trim |
Use Scenario: Serves as adjustable reference in precision DAC-based calibration circuit for sensor signal conditioning. IC Role / Device Role / Timing Role: Stable Zener node setting baseline for resistor-divider scaling of analog outputs. Use Value: Delivers 6.2 V reference with <0.1 V drift over –40°C to +85°C, enabling 12-bit system accuracy. |
Use Scenario: Fine-tunes output of fixed 5 V buck regulator to meet exact 5.00 V ±10 mV specification in test equipment. IC Role / Device Role / Timing Role: Series-connected Zener in feedback divider network adjusting effective reference voltage. Use Value: Enables ±0.2% output adjustment resolution using standard 1% resistors and no trimming potentiometer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5341B | Same 6.2 V ±5%, but leaded version without e3 RoHS suffix; tin-lead plating | Not compliant with RoHS Directive 2011/65/EU; requires exemption documentation for EU shipments | Select only for legacy repair or non-RoHS-regulated markets where tin-lead solder is used |
| MMSZ5234B-TP | Surface-mount SOD-123 package; 6.2 V ±5%; 500 mW rating; higher ZZ (7 Ω) | Limited to low-power applications; unsuitable for >100 mA continuous regulation or surge events | Choose for space-constrained PCBs where thermal mass and surge immunity are secondary to footprint size |
Compared with 1N5341B and MMSZ5234B-TP, the 1N5341E3/TR12 uniquely combines full RoHS compliance, 5 W power handling, and axial T-18 form factor-enabling drop-in replacement in legacy through-hole designs while meeting modern environmental standards and industrial surge requirements.
Availability
1N5341E3/TR12 is available at Aetrix Electronics and suitable for switching power supplies, overvoltage protection circuits, and programmable voltage references requiring stable component supply, long-term obsolescence management, and traceable sourcing for industrial control systems.
Supply support for 1N5341E3/TR12 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial applications.
The 1N53xx series was designed specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and long-term parametric stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance for 1N5341E3/TR12?
The 1N5341E3/TR12 has a nominal Zener voltage of 6.2 V with a tolerance of ±5%, as indicated by the "B" suffix in its base part number (1N5341B). The "E3" denotes RoHS compliance, and "TR12" specifies tape-and-reel packaging per EIA-296. This tolerance ensures consistent regulation performance across production lots without requiring post-assembly calibration.
Can 1N5341E3/TR12 be used in surface-mount designs?
No, the 1N5341E3/TR12 uses a T-18 axial-leaded package and is not compatible with surface-mount assembly processes. For SMT equivalents, Microsemi offers the SMBJ5341B series in DO-214AA (SMB) package. The 1N5341E3/TR12 requires through-hole mounting with minimum 10 mm lead length from body to achieve its rated 5 W power dissipation.
What is the maximum surge current rating for 1N5341E3/TR12?
The 1N5341E3/TR12 is rated for a non-repetitive peak surge current (IZSM) of 12.4 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating is validated per JEDEC standards and enables reliable clamping of inductive switching transients in motor drives and relay interfaces without degradation.
How does thermal resistance affect 1N5341E3/TR12's power handling?
The 1N5341E3/TR12 has a junction-to-lead thermal resistance of 25 °C/W at 10 mm lead length. At 25°C ambient, this allows full 5 W dissipation only if leads act as effective heat paths; on FR4 board with 4 mm² copper pads, derating reduces usable power to 1.47 W. Proper lead bending and copper pour design are essential to maintain safe junction temperatures.
Is 1N5341E3/TR12 suitable for automotive under-hood applications?
Yes, the 1N5341E3/TR12 operates from –65°C to +150°C and meets MIL-STD-750 ESD testing (Method 1020), making it suitable for under-hood automotive applications such as engine control unit voltage supervision. Its moisture sensitivity level 1 eliminates bake requirements prior to assembly, and its robust surge rating handles load-dump transients when used with appropriate series impedance.
1N5341E3/TR12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±20%
- 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 ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5341E3/TR12 FAQ
1.How can I place an order for 1N5341E3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341E3/TR12 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 1N5341E3/TR12 reliable?
The price and inventory of 1N5341E3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341E3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5341E3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341E3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341E3/TR12?
1N5341E3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341E3/TR12 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 1N5341E3/TR12?
For technical support, including 1N5341E3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341E3/TR12 requirements.
6.How does Aetrix verify that 1N5341E3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5341E3/TR12 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 1N5341E3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5341E3/TR12?
All 1N5341E3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341E3/TR12, 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 1N5341E3/TR12 part is unused and in its original packaging.
Return procedure for 1N5341E3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341E3/TR12 Tags
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MM5Z5V1ST1G
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