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Microchip Technology 1N5341C/TR8
- Part No.:
- 1N5341C/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341C/TR8.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,224
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Product details
Overview
1N5341C/TR8 from Microsemi is a 5.1 V, ±2% tolerance, 5 W axial-leaded silicon Zener diode optimized for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation. It delivers stable regulation at 240 mA test current with 1.5 Ω dynamic impedance and operates across –65°C to +150°C.
For engineers reviewing the 1N5341C/TR8 datasheet, 1N5341C/TR8 pinout, 1N5341C/TR8 application, or 1N5341C/TR8 equivalent, key selection criteria include its tight ±2% VZ tolerance, low 1.5 Ω ZZ at IZT, 930 mA maximum Zener current (IZM), and compatibility with standard T-18 axial packaging for through-hole PCB mounting.
Technical Context
This device functions as a two-terminal shunt regulator, maintaining a stable 5.1 V reverse breakdown voltage across a wide operating current range (10%–50% of IZM). Its voltage regulation (ΔVZ) is specified at 0.39 V - the difference between VZ measured at 10% and 50% of IZM.
Thermal performance is defined by junction-to-lead resistance of 25 °C/W (at 10 mm lead length) and junction-to-ambient resistance of 85 °C/W on FR4 with 4 mm² copper pads. The cathode is marked by a band; operation requires the banded end to be positive relative to the anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V ±2% - ensures precise reference accuracy for feedback control in regulated DC-DC converters |
| Test Current (IZT) | 240 mA - defines the nominal operating point where VZ and ZZ are guaranteed |
| Dynamic Impedance (ZZ) | 1.5 Ω - low impedance minimizes output voltage variation under load transients |
| Max Regulator Current (IZM) | 930 mA - maximum continuous DC current when adequately heat-sunk at TL ≤ 25°C |
| Power Dissipation (PD) | 5.0 W at 25°C - derates linearly above 25°C per Figure 1; supports high-current regulation without external heatsink at moderate ambient |
| Reverse Leakage (IR) | 1.0 μA max at VR = 3.0 V - ensures minimal quiescent current in standby or low-power modes |
| Voltage Regulation (ΔVZ) | 0.39 V - quantifies stability across 10–50% IZM; critical for high-accuracy references |
Pinout & Package
Package: T-18 axial-leaded plastic case (Void-free transfer-molded thermosetting epoxy, UL94V-0 rated); leads are tin-lead or RoHS-compliant matte tin; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink terminal in reverse bias | Connected to circuit ground or lower-potential node; carries full Zener current during regulation |
| Cathode (banded end) | Regulated voltage output node | Provides stable 5.1 V reference; must be held positive relative to anode to maintain conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without post-calibration in industrial power supplies |
| JEDEC-registered T-18 package | Ensures mechanical interchangeability and soldering compatibility across legacy and new designs |
| Moisture sensitivity Level 1 (IPC/JEDEC J-STD-020B) | Eliminates dry-pack requirement and floor-life constraints-ready for immediate SMT/reflow or hand-soldering |
| High surge current rating (IZSM = 14.4 A) | Withstands 8.3 ms half-sine surges common in automotive load-dump or AC line transient events |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-safe workstations in assembly |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Used in the optocoupler feedback path of isolated 12 V/5 V DC-DC converters to regulate output voltage within ±1%. IC Role / Device Role / Timing Role: Shunt reference providing precise 5.1 V threshold to error amplifier input. Use Value: Tight ±2% VZ and low ΔVZ (0.39 V) minimize output drift across line/load/temperature variations. | Use Scenario: Placed across 5 V rail to clamp transients exceeding 5.5 V in microcontroller-based industrial controllers. IC Role / Device Role / Timing Role: Passive overvoltage clamp protecting downstream logic inputs and ADC references. Use Value: 14.4 A surge rating absorbs repetitive 8.3 ms line transients without degradation; low ZZ ensures fast clamping response. |
| Programmable Reference Voltage Source | Temperature-Stable Bias Generator |
Use Scenario: Paired with a potentiometer in a lab-grade bench power supply to generate adjustable 4–6 V reference outputs. IC Role / Device Role / Timing Role: Primary voltage reference element in a buffered, trimmed reference subsystem. Use Value: ±2% initial tolerance and <0.0005%/°C typical TC allow sub-10 mV drift over –40°C to +85°C without trimming. | Use Scenario: Biases the base of a PNP transistor in a constant-current LED driver for outdoor signage. IC Role / Device Role / Timing Role: Stable bias voltage source setting emitter current independent of supply fluctuations. Use Value: Low thermal resistance (25 °C/W) and wide –65°C to +150°C operating range ensure consistent bias under high-ambient conditions. |
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 vs. ±2% for 1N5341C/TR8; otherwise identical electrical specs and package | Suitable where cost-sensitive designs tolerate wider output voltage spread (±5% → ±0.255 V at 5.1 V) | Select 1N5341B/TR8 only if system-level testing confirms ±5% regulation meets functional safety or accuracy requirements |
| MMBZ5222BS-7-F | Surface-mount SOD-123 package; 5.1 V ±5%; 250 mW power rating; not drop-in compatible | Used in space-constrained, high-density PCBs where axial T-18 footprint is prohibitive | Choose MMBZ5222BS-7-F only when board layout mandates SMT and thermal/power demands are ≤250 mW |
Compared with 1N5341B/TR8, the 1N5341C/TR8 provides tighter regulation for precision feedback paths; compared with MMBZ5222BS-7-F, it offers 20× higher power handling and proven robustness in surge-prone environments, but requires axial through-hole mounting.
Availability
1N5341C/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and programmable reference voltage sources requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5341C/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized, high-power Zener regulation in mission-critical power systems where long-term stability, surge immunity, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5341C/TR8?
The 1N5341C/TR8 has a Zener voltage tolerance of ±2%, as indicated by the "C" suffix in its part number. This means its nominal 5.1 V breakdown voltage is guaranteed between 5.00 V and 5.20 V at 240 mA test current and 25°C lead temperature. This tighter tolerance supports precision regulation where ±5% devices like the 1N5341B/TR8 would introduce unacceptable output variation.
Can the 1N5341C/TR8 be used in surface-mount designs?
No, the 1N5341C/TR8 uses a T-18 axial-leaded package and is intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5341B series in DO-214AA (SMB) packages. The 1N5341C/TR8 itself requires hole drilling and wave/soldering processes-not reflow-compatible-and cannot be substituted directly into SMT layouts without mechanical redesign.
What is the maximum continuous Zener current for the 1N5341C/TR8?
The maximum continuous Zener current (IZM) for the 1N5341C/TR8 is 930 mA when operated at a lead temperature (TL) of 25°C with adequate heat sinking (3/8″ lead length). At ambient temperature on FR4, steady-state power drops to 1.47 W, limiting usable IZM to approximately 288 mA unless additional copper area or forced cooling is applied.
How does the 1N5341C/TR8 handle transient overvoltage events?
The 1N5341C/TR8 is rated for a peak non-recurrent surge current (IZSM) of 14.4 A for an 8.3 ms half-sine waveform - matching automotive load-dump and industrial AC line surge profiles. Its low dynamic impedance (1.5 Ω) and robust epoxy package enable reliable clamping without parameter shift, provided surge energy remains within the single-pulse I2t limit derived from its thermal mass and lead-frame design.
Is the 1N5341C/TR8 RoHS compliant?
Yes, the 1N5341C/TR8 is RoHS compliant, as confirmed by the "e3" suffix in Microsemi's official documentation. Its terminals use RoHS-compliant annealed matte-tin plating, and the void-free epoxy body meets UL94V-0 flammability standards. No exemptions are required, and the device conforms fully to Directive 2011/65/EU Annex II substance restrictions.
1N5341C/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:
- ±2%
- 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
1N5341C/TR8 FAQ
1.How can I place an order for 1N5341C/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341C/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 1N5341C/TR8 reliable?
The price and inventory of 1N5341C/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341C/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5341C/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341C/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341C/TR8?
1N5341C/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341C/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 1N5341C/TR8?
For technical support, including 1N5341C/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341C/TR8 requirements.
6.How does Aetrix verify that 1N5341C/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5341C/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 1N5341C/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5341C/TR8?
All 1N5341C/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341C/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 1N5341C/TR8 part is unused and in its original packaging.
Return procedure for 1N5341C/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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