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Microchip Technology 1N5341/TR12
- Part No.:
- 1N5341/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341/TR12.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:6,905
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Product details
Overview
1N5341/TR12 from Microsemi is a 6.2 V, ±5% 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 765 Ω dynamic impedance at 200 mA test current, supports 765 mA maximum regulator current with adequate heat sinking, and operates across –65°C to +150°C.
For engineers reviewing the 1N5341/TR12 datasheet, 1N5341/TR12 pinout, 1N5341/TR12 application, or 1N5341/TR12 equivalent, key selection criteria include its 6.2 V nominal Zener voltage, ±5% tolerance (B suffix), 5 W steady-state power rating at 25°C lead temperature, low 0.10 V voltage regulation (ΔVZ), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This discrete Zener diode functions as a two-terminal shunt voltage regulator, maintaining stable output voltage by conducting reverse current above its specified breakdown threshold. Its design centers on low dynamic impedance (1.0 Ω at IZT = 200 mA) and minimal voltage variation (ΔVZ = 0.10 V) between 10% and 50% of IZM.
It features a T-18 axial package with moisture sensitivity level 1 (no dry pack required), UL94V-0 epoxy body, and cathode polarity marked by a band. Thermal resistance is 25 °C/W junction-to-lead at 10 mm lead length, enabling high-current operation when properly heat-sunk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal at 200 mA - defines precise regulation point for feedback or clamping |
| Tolerance | ±5% (B suffix) - ensures tight voltage accuracy without calibration |
| Power Dissipation | 5.0 W at TL = 25°C - supports robust regulation under sustained load |
| Dynamic Impedance (ZZ) | 1.0 Ω at 200 mA - minimizes output voltage shift with load current changes |
| Max Regulator Current (IZM) | 765 mA - enables high-current shunt regulation with thermal management |
| Voltage Regulation (ΔVZ) | 0.10 V - difference between VZ measured at 10% and 50% of IZM |
| Reverse Current (IR) | 1.0 μA max at VR = 3.0 V - ensures low leakage below breakdown |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-41 outline; void-free UL94V-0 epoxy body; cathode indicated by color band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulation output node | Banded end; connected to regulated voltage rail; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N53xxB series | Industry-standard footprint and electrical behavior for drop-in compatibility in legacy designs |
| Moisture Sensitivity Level 1 | No dry pack or baking required before PCB assembly - reduces manufacturing overhead |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling in standard production environments without special ESD controls |
| High surge current rating (IZSM = 200 A) | Withstands 8.3 ms half-sine transients - suitable for transient overvoltage suppression |
| RoHS-compliant (e3 suffix) | Meets global environmental compliance requirements without performance trade-offs |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.2 V threshold for error amplifier comparison. Use Value: Enables ±1% output regulation stability across line/load/temperature with minimal external components. |
Use Scenario: Placed across sensitive IC inputs or bus lines to clamp transient spikes exceeding 6.2 V. IC Role / Device Role / Timing Role: Passive overvoltage clamp absorbing energy during ESD or inductive kick events. Use Value: Limits voltage excursions to safe levels using 200 A surge capability and low ΔVZ for predictable clamping. |
| Programmable Reference Voltage Source | Linear Regulator Output Setpoint |
Use Scenario: Combined with resistive dividers to generate adjustable reference voltages for ADCs or comparators. IC Role / Device Role / Timing Role: Stable, temperature-compensated voltage source defining system-level analog thresholds. Use Value: Delivers 6.2 V ±5% accuracy with <0.10 V regulation drift - eliminates need for trimming. |
Use Scenario: Sets output voltage of adjustable linear regulators (e.g., LM317) via resistor divider network. IC Role / Device Role / Timing Role: Precision Zener element establishing fixed reference node in feedback path. Use Value: Improves output voltage accuracy and load regulation versus internal bandgap references alone. |
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%, 5 W spec; no TR12 tape-and-reel packaging | Requires manual loading or bulk handling instead of automated pick-and-place | Select 1N5341/TR12 for SMT production lines requiring EIA-296 compliant tape-and-reel delivery |
| MMBZ5234B-TP | Surface-mount SOT-23 package; same 6.2 V, ±5%, but rated at 0.5 W only | Not suitable for >500 mA continuous regulation; limited thermal mass and dissipation | Choose MMBZ5234B-TP only for space-constrained low-power biasing where 5 W capability is unnecessary |
Compared with 1N5341B and MMBZ5234B-TP, the 1N5341/TR12 uniquely combines JEDEC-standard axial packaging, full 5 W power handling, and factory tape-and-reel readiness-making it optimal for industrial power supplies requiring reliability, serviceability, and automated assembly.
Availability
1N5341/TR12 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 RoHS-compliant sourcing.
Supply support for 1N5341/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 1N53xxB series was designed specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal resilience, surge immunity, and long-term parametric stability.
FAQ
What is the Zener voltage tolerance of the 1N5341/TR12?
The 1N5341/TR12 has a ±5% Zener voltage tolerance, confirmed by its "B" suffix per Microsemi's datasheet. This means its actual breakdown voltage falls within 5.9 V to 6.5 V at 200 mA test current and 25°C lead temperature. The 1N5341/TR12 maintains this tolerance across its full operating temperature range of –65°C to +150°C, supporting stable regulation without recalibration.
Can the 1N5341/TR12 be used in surface-mount designs?
No - the 1N5341/TR12 uses an axial T-18 (DO-41) package with 10 mm lead length and is intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5341B or SMBG5341B in DO-214AA/DO-214AB packages. The 1N5341/TR12 itself requires hole drilling and wave soldering or hand assembly, not reflow-compatible placement.
What is the maximum surge current rating for the 1N5341/TR12?
The 1N5341/TR12 has a maximum non-recurrent surge current (IZSM) of 200 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating is validated per Microsemi's test conditions and enables the 1N5341/TR12 to absorb transient energy in overvoltage protection applications without degradation, provided average power remains within 5 W limits.
Does the 1N5341/TR12 require dry packing before PCB assembly?
No - the 1N5341/TR12 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ambient conditions without desiccant or dry packing. This eliminates bake-out steps prior to reflow or wave soldering, reducing process complexity and cost for the 1N5341/TR12 in high-volume manufacturing.
How does the voltage regulation (ΔVZ) specification impact circuit performance for the 1N5341/TR12?
The 1N5341/TR12 specifies ΔVZ = 0.10 V - the difference between Zener voltage measured at 10% and 50% of its maximum regulator current (IZM). This low value ensures minimal output voltage variation across wide load current ranges, directly improving regulation accuracy in feedback networks and reference circuits where the 1N5341/TR12 is deployed.
1N5341/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
1N5341/TR12 FAQ
1.How can I place an order for 1N5341/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341/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 1N5341/TR12 reliable?
The price and inventory of 1N5341/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5341/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341/TR12?
1N5341/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341/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 1N5341/TR12?
For technical support, including 1N5341/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341/TR12 requirements.
6.How does Aetrix verify that 1N5341/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5341/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 1N5341/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5341/TR12?
All 1N5341/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341/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 1N5341/TR12 part is unused and in its original packaging.
Return procedure for 1N5341/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341/TR12 Tags
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