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Microchip Technology 1N5341A/TR8
- Part No.:
- 1N5341A/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341A/TR8.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,411
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Product details
Overview
1N5341A/TR8 from Microsemi is a silicon 5 W axial-leaded Zener diode with nominal regulation voltage of 6.2 V, ±10% tolerance (A suffix), 200 mA test current (IZT), 1.0 Ω maximum dynamic impedance (ZZ), and 765 mA maximum Zener current (IZM) at 25°C. It regulates voltage in power supply feedback loops and overvoltage protection circuits across industrial and telecom systems.
For engineers reviewing the 1N5341A/TR8 datasheet, 1N5341A/TR8 pinout, 1N5341A/TR8 application, or 1N5341A/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (12.4 A), reverse leakage behavior at VR = 3.0 V, and compatibility with T-18 axial package mounting on FR4 PCBs.
Technical Context
This device operates as a voltage reference and shunt regulator, maintaining stable output voltage under varying load and line conditions by conducting reverse current above its breakdown threshold. Its low dynamic impedance (1.0 Ω) ensures minimal voltage deviation across 10–50% of IZM, and its 25 °C/W thermal resistance enables reliable 5 W dissipation with 3/8″ lead length heat sinking.
The 1N5341A/TR8 features cathode band polarity marking, RoHS-compliant matte-tin plating, UL94V-0 epoxy encapsulation, and moisture sensitivity level 1-no dry pack required. It withstands 260 °C soldering for 10 s and exhibits ≤0.10 V voltage regulation (ΔVZ) between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±10% - defines regulated output voltage under specified IZT; actual range: 5.58–6.82 V |
| Test Current (IZT) | 200 mA - operating point where VZ and ZZ are guaranteed; used for stable reference calibration |
| Dynamic Impedance (ZZ) | 1.0 Ω max - low AC resistance ensures tight voltage regulation during transient load changes |
| Max Zener Current (IZM) | 765 mA - maximum continuous DC current at TL = 25°C; determines safe power handling with heatsinking |
| Surge Current (IZSM) | 12.4 A - peak non-repetitive half-sine (8.3 ms) capability for transient overvoltage clamping |
| Voltage Regulation (ΔVZ) | 0.10 V max - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
| Reverse Leakage (IR) | 10 μA max @ VR = 3.0 V - low off-state current minimizes standby power loss in bias networks |
Pinout & Package
Package: T-18 axial-leaded plastic case per JEDEC DO-204AL standard; void-free UL94V-0 epoxy body; cathode indicated by colored band; leads plated with RoHS-compliant matte tin; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener breakdown terminal / regulation output node | Banded end; connected to regulated voltage rail; sinks current to maintain VZ across load |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical dimensions, marking, and electrical test methodology across global supply chain |
| ±10% voltage tolerance (A suffix) | Cost-optimized regulation accuracy suitable for non-critical feedback and clamp applications |
| 25 °C/W junction-to-lead thermal resistance | Enables full 5 W dissipation with simple 3/8″ lead-length heatsinking-no PCB copper pour required |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for handling precautions or on-board ESD protection in assembly environments |
| Moisture sensitivity Level 1 | Zero dry-pack requirement and unlimited floor life-reduces manufacturing logistics overhead |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for Telecom Line Cards |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.2 V setpoint to optocoupler input. Use Value: Maintains ±1% output voltage stability across 10–100% load with 1.0 Ω ZZ minimizing loop gain variation. | Use Scenario: Protects line interface ICs from lightning-induced surges on -48 V DC distribution rails. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting >10 A transients away from sensitive PHY components. Use Value: 12.4 A IZSM rating and 0.10 V ΔVZ ensure clamping voltage stays within 6.2 ±0.15 V during 8.3 ms surges. |
| Industrial Sensor Excitation Reference | Programmable Current Source Bias Network |
Use Scenario: Supplies stable excitation voltage to resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Low-drift voltage reference establishing 6.2 V common-mode bias for instrumentation amplifiers. Use Value: ±10% VZ tolerance and <10 μA IR at 3.0 V enable sub-0.1% offset drift over -40°C to +85°C ambient. | Use Scenario: Sets reference voltage for op-amp-based constant-current sink driving LED arrays. IC Role / Device Role / Timing Role: Precision shunt element defining compliance voltage for MOSFET gate control loop. Use Value: 1.0 Ω ZZ ensures current regulation remains stable despite 200 mA ±10% IZT variation across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5341B/TR8 | ±5% VZ tolerance (6.2 V ±0.31 V); same IZT, ZZ, IZM, and package | Tighter regulation needed for precision feedback or low-tolerance references | Select when system-level voltage accuracy requirements exceed ±10% and cost premium is acceptable |
| MMBZ5234BS-7-F | Surface-mount SOD-123 package; 6.2 V ±5%; 200 mW rating; 100 mA IZM | Space-constrained PCBs requiring automated placement; not suitable for 5 W power dissipation | Choose only for low-power signal-level clamping where thermal management precludes axial devices |
Compared with 1N5341A/TR8, the 1N5341B/TR8 improves voltage accuracy without changing thermal or surge performance, while MMBZ5234BS-7-F trades power handling and robustness for miniaturization-neither is pin-compatible due to differing form factors and power classes.
Availability
1N5341A/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line protection circuits, and sensor excitation references requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N5341A/TR8 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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxA/B series was designed for ruggedized voltage regulation in harsh-environment power systems-emphasizing surge resilience, wide temperature operation (-65°C to +150°C), and MIL-qualified screening options.
FAQ
What is the Zener voltage tolerance of the 1N5341A/TR8?
The 1N5341A/TR8 has a Zener voltage tolerance of ±10%, meaning its nominal 6.2 V regulation point falls between 5.58 V and 6.82 V at 200 mA test current and 25°C lead temperature. This tolerance is designated by the "A" suffix per Microsemi's documentation and applies across the full operating temperature range of -65°C to +150°C.
Can the 1N5341A/TR8 be used without a heatsink?
The 1N5341A/TR8 can dissipate up to 1.47 W continuously at 25°C ambient when mounted on a standard FR4 PCB with 4 mm² copper pads and 1 mm track width, per its 85°C/W junction-to-ambient thermal resistance. For full 5 W operation, it requires 3/8″ (10 mm) lead length heat sinking to achieve 25°C/W junction-to-lead resistance-so no external heatsink is needed if lead length is properly managed.
What does the "TR8" suffix indicate in 1N5341A/TR8?
"TR8" indicates tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and component orientation optimized for automated pick-and-place assembly. This format supports high-volume manufacturing and is distinct from bulk or ammo-pack options-no change to electrical or thermal specifications versus the bare device.
How does the 1N5341A/TR8 perform under surge conditions?
The 1N5341A/TR8 is rated for 12.4 A peak non-repetitive surge current (IZSM) in an 8.3 ms half-sine waveform, making it suitable for clamping lightning-induced transients and inductive switching spikes. Its low 0.10 V voltage regulation (ΔVZ) ensures clamping voltage remains tightly bounded between 10% and 50% of its 765 mA maximum Zener current.
Is the 1N5341A/TR8 RoHS compliant?
Yes, the 1N5341A/TR8 is RoHS compliant, as confirmed by the "e3" designation in Microsemi's official documentation and its matte-tin lead plating meeting J-STD-609A Class 3 requirements. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits and requires no dry pack due to IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
1N5341A/TR8 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:
- ±10%
- 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
1N5341A/TR8 FAQ
1.How can I place an order for 1N5341A/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341A/TR8 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 1N5341A/TR8 reliable?
The price and inventory of 1N5341A/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341A/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5341A/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341A/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341A/TR8?
1N5341A/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341A/TR8 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 1N5341A/TR8?
For technical support, including 1N5341A/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341A/TR8 requirements.
6.How does Aetrix verify that 1N5341A/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5341A/TR8 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 1N5341A/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5341A/TR8?
All 1N5341A/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341A/TR8, 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 1N5341A/TR8 part is unused and in its original packaging.
Return procedure for 1N5341A/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341A/TR8 Tags
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