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Microchip Technology 1N5341C/TR12
- Part No.:
- 1N5341C/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341C/TR12.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,732
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Product details
Overview
1N5341C/TR12 from Microsemi is a 6.2 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 200 mA maximum Zener current (IZM), exhibits 1.0 Ω dynamic impedance (ZZ) at 200 mA test current, and operates across –65°C to +150°C.
For engineers reviewing the 1N5341C/TR12 datasheet, 1N5341C/TR12 pinout, 1N5341C/TR12 application, or 1N5341C/TR12 equivalent, key selection criteria include its tight ±2% voltage tolerance, low 1.0 Ω dynamic impedance at rated current, 5 W steady-state power capability with proper heat sinking, and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current when the applied voltage exceeds its nominal 6.2 V Zener breakdown threshold. Its low 1.0 Ω dynamic impedance ensures minimal voltage variation (ΔVZ = 0.10 V) between 20 mA and 100 mA operating currents.
The 1N5341C/TR12 uses a void-free thermosetting epoxy T-18 package with cathode band polarity marking, rated for 260°C soldering (10 s), and achieves 25°C/W junction-to-lead thermal resistance at 10 mm lead length - enabling reliable 5 W operation with adequate heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±2% - precise reference voltage with guaranteed tolerance band for feedback stability |
| Test Current (IZT) | 200 mA - operating point where VZ and ZZ are specified; defines standard regulation condition |
| Dynamic Impedance (ZZ) | 1.0 Ω - low AC resistance ensures <0.1 V output variation across 10–50% IZM load changes |
| Max Regulator Current (IZM) | 765 mA - maximum continuous DC current at 25°C lead temperature; enables high-current clamping |
| Power Dissipation (Pd) | 5.0 W at TL < 25°C - requires thermal management (e.g., 10 mm lead length) to sustain full rating |
| Operating Temperature | –65°C to +150°C - supports industrial and automotive under-hood environments without derating |
| Forward Voltage (VF) | 1.2 V max @ 1.0 A - defines conduction loss during forward-biased transient events |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL; void-free UL94V-0 epoxy body; cathode indicated by band; leads plated with RoHS-compliant matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink in reverse bias / forward conduction terminal | Connected to lower-potential node; carries full Zener current during regulation |
| Cathode | Current source in reverse bias / anode in forward bias | Banded end; connected to higher-potential node; defines regulated output reference point |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback loop control vs. ±5% (B) or ±10% (A) variants, reducing system calibration overhead |
| 5.0 W power rating with 25°C/W thermal resistance | Supports high-energy transient suppression without external heatsink when leads are extended ≥10 mm |
| Moisture sensitivity Level 1 (IPC/JEDEC J-STD-020B) | Eliminates dry-pack requirement and bake-out prior to assembly, lowering manufacturing cost |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Permits handling in standard workstations without special ESD controls during board assembly |
| RoHS-compliant (e3 suffix) | Meets global environmental compliance mandates without performance trade-offs or material substitution |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 6.2 V threshold for TL431 or optocoupler LED drive. Use Value: ±2% tolerance ensures output accuracy within ±1% over line/load/temperature, reducing need for post-production trimming. | Use Scenario: Clamps rail voltage during load dump or inductive kick events in 12 V automotive systems. IC Role / Device Role / Timing Role: Two-terminal crowbar element diverting excess energy to ground before downstream ICs exceed absolute maximum ratings. Use Value: 765 mA IZM and 5 W rating absorb 100 ms transients up to 120 J without degradation, per SAE J1113-11. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Provides stable excitation voltage for precision RTD or strain gauge bridges requiring low-drift references. IC Role / Device Role / Timing Role: Low-noise, low-impedance DC reference source replacing higher-cost bandgap ICs in 4–20 mA transmitter front-ends. Use Value: 1.0 Ω ZZ and 0.10 V ΔVZ minimize bridge imbalance error, enabling <0.05% full-scale measurement accuracy. | Use Scenario: Supplies regulated bias to MEMS pressure sensors in process control transmitters operating at 85°C ambient. IC Role / Device Role / Timing Role: Temperature-stable shunt regulator maintaining constant 6.2 V across sensor Wheatstone bridge despite supply ripple. Use Value: –65°C to +150°C operating range and <10 ppm/°C TC (inferred from ΔVZ = 0.10 V over 20–100 mA) ensure <0.1% span drift over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5341B/TR12 | ±5% VZ tolerance (vs. ±2%); identical 6.2 V nominal, 200 mA IZT, 1.0 Ω ZZ, and 5 W rating | Suitable where system-level calibration compensates for initial tolerance; lower cost for non-critical references | Select when ±5% output accuracy is acceptable and BOM cost optimization is prioritized |
| MMBZ5231BS-7-F | Surface-mount SOD-123 package; 6.2 V ±5%; 200 mW rating (vs. 5 W); 17 Ω ZZ @ 20 mA | Limited to low-power signal-level regulation; cannot replace 1N5341C/TR12 in power-stage clamping or high-current references | Choose only for space-constrained PCBs with <50 mA regulation current and no surge energy requirements |
Compared with 1N5341B/TR12 and MMBZ5231BS-7-F, the 1N5341C/TR12 provides superior voltage accuracy and 25× higher power handling - making it the sole option for industrial-grade feedback regulation and transient suppression where ±2% tolerance and 5 W dissipation are mandatory design requirements.
Availability
1N5341C/TR12 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and programmable voltage references requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5341C/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 markets.
The 1N53xx series was designed specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing wide temperature operation, high surge resilience, and JEDEC-standardized mechanical robustness.
FAQ
What is the Zener voltage tolerance of the 1N5341C/TR12?
The 1N5341C/TR12 has a Zener voltage tolerance of ±2%, as indicated by the "C" suffix in its part number. This means its actual breakdown voltage falls within 6.076 V to 6.324 V at 200 mA test current and 25°C lead temperature. This tighter tolerance supports higher-accuracy voltage references compared to ±5% (B suffix) or ±10% (A suffix) variants in the same 1N53xx family.
Can the 1N5341C/TR12 be used in surface-mount designs?
No, the 1N5341C/TR12 is an axial-leaded T-18 package device and is not compatible with surface-mount assembly processes. For SMT equivalents, Microsemi offers the SMBJ5341B series in DO-214AA (SMB) packages - but note these have different power ratings (400 W peak, 1.0 W average) and are not direct replacements for the 5 W continuous operation of the 1N5341C/TR12.
What is the maximum continuous Zener current for the 1N5341C/TR12?
The maximum continuous Zener current (IZM) for the 1N5341C/TR12 is 765 mA at 25°C lead temperature (TL), derived from P = VZ × IZM → 5.0 W / 6.2 V ≈ 765 mA. This value assumes adequate heat sinking - derating applies above 25°C TL per Figure 1 in the datasheet, reaching zero power at 150°C TL.
Does the 1N5341C/TR12 require dry packing before reflow soldering?
No, the 1N5341C/TR12 has IPC/JEDEC moisture sensitivity Level 1 classification, meaning it can be stored and processed indefinitely at ≤30°C/60% RH without dry packing or baking. Its void-free epoxy encapsulation eliminates moisture ingress risk, simplifying manufacturing logistics versus Level 2a or higher devices.
How does the dynamic impedance of the 1N5341C/TR12 affect regulation performance?
The 1N5341C/TR12 specifies 1.0 Ω dynamic impedance (ZZ) at 200 mA test current, meaning its output voltage varies by only ~0.1 V for a 100 mA change in Zener current. This low ZZ directly enables tight voltage regulation in feedback loops and reduces sensitivity to input ripple or load transients - critical for stable operation in precision power supplies.
1N5341C/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:
- ±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/TR12 FAQ
1.How can I place an order for 1N5341C/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341C/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 1N5341C/TR12 reliable?
The price and inventory of 1N5341C/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341C/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5341C/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341C/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341C/TR12?
1N5341C/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341C/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 1N5341C/TR12?
For technical support, including 1N5341C/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341C/TR12 requirements.
6.How does Aetrix verify that 1N5341C/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5341C/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 1N5341C/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5341C/TR12?
All 1N5341C/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341C/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 1N5341C/TR12 part is unused and in its original packaging.
Return procedure for 1N5341C/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341C/TR12 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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