Microchip Technology 1N5341AE3/TR8
- Part No.:
- 1N5341AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341AE3/TR8.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:3,115
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Product details
Overview
1N5341AE3/TR8 from Microsemi is a 5.0 W axial-leaded silicon 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 reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the 1N5341AE3/TR8 datasheet, 1N5341AE3/TR8 pinout, 1N5341AE3/TR8 application, or 1N5341AE3/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 (10 µA at 4.9 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a two-terminal voltage reference, conducting in reverse breakdown to maintain stable output voltage under varying load and line conditions. Its low dynamic impedance (1.0 Ω) ensures minimal voltage deviation across 10–50% of IZM, and its 25 °C/W junction-to-lead thermal resistance enables reliable 5.0 W dissipation with 3/8″ lead length heat sinking.
The 1N5341AE3/TR8 exhibits tight voltage regulation (ΔVZ = 0.10 V), defined as the difference between voltages measured at 10% and 50% of IZM. It meets JEDEC 1N53xxB registration, supports tape-and-reel packaging (TR8 suffix), and complies with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±10% - defines nominal regulation point for precision reference design |
| Test Current (IZT) | 200 mA - operating point where VZ and ZZ are specified; sets bias requirement |
| Dynamic Impedance (ZZ) | 1.0 Ω max - ensures <0.2 V deviation across 10–50% IZM variation |
| Max Zener Current (IZM) | 765 mA - maximum continuous reverse current before thermal runaway at TL = 25°C |
| Power Dissipation (Pd) | 5.0 W at TL < 25°C - requires ≥3/8″ lead length heat sinking for full rating |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct thermal path to PCB copper or chassis via leads |
| Reverse Leakage (IR) | 10 µA max at VR = 4.9 V - confirms low standby power loss in high-impedance bias networks |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free transfer-molded thermosetting epoxy, UL94V-0 rated); cathode indicated by band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit common; establishes polarity for reverse-bias operation |
| Cathode | Zener breakdown terminal / Regulated output node | Banded end; connected to unregulated rail; maintains 6.2 V relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized electrical behavior and interchangeability across qualified suppliers |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints during SMT assembly prep |
| 12.4 A surge current rating | Withstands 8.3 ms half-sine transients without degradation in overvoltage clamp applications |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables handling without special static control in standard production environments |
| e3 RoHS-compliant plating | Meets EU Directive 2011/65/EU and China RoHS II with annealed matte-tin finish |
Applications
| Linear Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in discrete linear regulators using LM317 or similar ICs. IC Role / Device Role / Timing Role: Zener reference element providing precise 6.2 V setpoint for error amplifier comparison. Use Value: Maintains ±10% output regulation across 0–1 A load with <0.1 V drift due to its 1.0 Ω ZZ and 0.10 V ΔVZ. | Use Scenario: Clamping transient spikes on 5 V logic rails during hot-plug or ESD events. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground when rail exceeds 6.2 V. Use Value: Absorbs 12.4 A surge (8.3 ms) without failure, protecting downstream 5 V CMOS logic from >7 V overstress. |
| Industrial Sensor Excitation | Programmable Current Source Bias |
Use Scenario: Providing stable excitation voltage for resistive temperature detectors (RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage source establishing known bias across RTD bridge arms. Use Value: Delivers 6.2 V ±10% over –65°C to +150°C, enabling <0.5% total system error in Class A RTD measurements. | Use Scenario: Setting reference voltage for op-amp-based constant-current sinks driving LED arrays. IC Role / Device Role / Timing Role: Stable voltage reference defining current magnitude via sense resistor. Use Value: Enables 1% current accuracy with 1% sense resistor, leveraging 1.0 Ω ZZ to minimize load-induced VZ shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5341B | Same 6.2 V nominal, but ±5% tolerance (B suffix) vs. ±10% (A suffix); identical package, IZT, ZZ, IZM | Higher precision reference needed where tighter regulation stability is critical | Select 1N5341B when ±5% VZ tolerance is required; otherwise 1N5341AE3/TR8 suffices for cost-sensitive clamping |
| MMBZ5234BS | Surface-mount SOD-123 package; 6.2 V ±5%; 200 mW rating (vs. 5 W); 100 Ω ZZ; 100 mA IZM | Low-power portable electronics where board space and thermal mass limit is critical | Choose MMBZ5234BS only for space-constrained, low-current (<100 mA) designs; not a thermal or surge-capable replacement |
Compared with 1N5341B, the 1N5341AE3/TR8 trades voltage precision for cost and availability in tape-and-reel; versus MMBZ5234BS, it delivers 25× higher power handling and 12× higher surge current, making it suitable for industrial power rail protection rather than signal-level biasing.
Availability
1N5341AE3/TR8 is available at Aetrix Electronics and suitable for industrial power supply references, overvoltage protection clamps, sensor excitation circuits, and programmable current source bias requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for 1N5341AE3/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 as a ruggedized, JEDEC-standard 5 W Zener platform for mission-critical voltage regulation in harsh-environment power systems where thermal stability and surge resilience are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5341AE3/TR8?
The 1N5341AE3/TR8 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual breakdown voltage falls between 5.58 V and 6.82 V at 200 mA test current and 25°C lead temperature. The e3 suffix confirms RoHS compliance, and TR8 denotes tape-and-reel packaging per EIA-296 standards. This tolerance is suitable for non-critical regulation and robust clamping applications.
Can the 1N5341AE3/TR8 be used in surface-mount designs?
No, the 1N5341AE3/TR8 is an axial-leaded T-18 package device and is not compatible with surface-mount assembly processes. For SMT equivalents, Microsemi offers the SMBJ5341B or SMBG5341B in DO-214AA/DO-214AB packages. The 1N5341AE3/TR8 requires through-hole mounting with ≥3/8″ lead length for full 5.0 W power dissipation, and its thermal path relies on lead conduction-not PCB pads.
What is the maximum surge current rating for the 1N5341AE3/TR8?
The 1N5341AE3/TR8 has a maximum non-recurrent surge current (IZSM) of 12.4 A, specified as the peak of an 8.3 ms half-sine waveform. This rating reflects its capability to absorb transient energy in overvoltage protection circuits without parametric shift or failure. The surge rating assumes proper lead heat sinking and is validated per JEDEC test methods referenced in Microsemi's 1N53xxB datasheet revision D.
How does the thermal resistance of the 1N5341AE3/TR8 affect its power handling?
The 1N5341AE3/TR8 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when mounted with 3/8″ (10 mm) lead length from the body. This allows full 5.0 W dissipation at TL ≤ 25°C. If leads are shorter or ambient temperature rises, derating is required-e.g., at TL = 75°C, max power drops to 3.75 W. Its 85 °C/W junction-to-ambient rating on FR4 applies only with defined 4 mm² copper pads and 1 mm trace width.
Is the 1N5341AE3/TR8 suitable for automotive applications?
The 1N5341AE3/TR8 operates across –65°C to +150°C and meets MIL-PRF-19500 screening levels when ordered with MQ/MX/MV prefixes, but the base 1N5341AE3/TR8 is not AEC-Q200 qualified. For automotive use, it may serve in non-safety-critical subsystems (e.g., cabin lighting power rails) if customer-qualified per internal stress testing; however, AEC-Q200-compliant alternatives like the BZX84-C6V2 should be verified for front-end modules or ADAS domains.
1N5341AE3/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
1N5341AE3/TR8 FAQ
1.How can I place an order for 1N5341AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341AE3/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 1N5341AE3/TR8 reliable?
The price and inventory of 1N5341AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341AE3/TR8 is usually 5 days.
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Once your 1N5341AE3/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 1N5341AE3/TR8?
For technical support, including 1N5341AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341AE3/TR8 requirements.
6.How does Aetrix verify that 1N5341AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5341AE3/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 1N5341AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5341AE3/TR8?
All 1N5341AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341AE3/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 1N5341AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5341AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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