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Microchip Technology 1N5341AE3/TR12
- Part No.:
- 1N5341AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5341AE3/TR12.pdf
- Description:
- DIODE ZENER 6.2V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,111
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Product details
Overview
1N5341AE3/TR12 from Microsemi is a 5.1 V, ±10% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications. It delivers 240 mA test current, 1.5 Ω dynamic impedance at IZT, and operates across –65°C to +150°C.
For engineers reviewing the 1N5341AE3/TR12 datasheet, 1N5341AE3/TR12 pinout, 1N5341AE3/TR12 application, or 1N5341AE3/TR12 equivalent, key selection criteria include Zener voltage tolerance (±10%), thermal resistance (25 °C/W junction-to-lead), surge current rating (14.4 A), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This discrete Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown. Its regulation performance is defined by specified Zener voltage (5.1 V), dynamic impedance (1.5 Ω at 240 mA), and voltage regulation (ΔVZ = 0.39 V between 10% and 50% of IZM).
It features a T-18 axial package with cathode band marking, moisture sensitivity level 1 (no dry pack required), and UL94V-0 epoxy encapsulation. Thermal design requires 3/8" (10 mm) lead length from body for full 5 W dissipation at 25°C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V ±10% - defines stable regulation point under reverse bias at 240 mA test current |
| Power Dissipation (Pd) | 5.0 W at TL = 25°C - maximum steady-state power with 3/8" lead length heat sinking |
| Dynamic Impedance (ZZ) | 1.5 Ω at IZT = 240 mA - low AC impedance ensures minimal voltage variation with load current changes |
| Maximum Regulator Current (IZM) | 930 mA - peak DC current before exceeding power limit at rated VZ tolerance high end |
| Surge Current (IZSM) | 14.4 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal modeling for PCB layout and heatsink requirements |
| Reverse Leakage (IR) | 1.0 μA at VR = 3.0 V - confirms low off-state conduction below knee voltage |
Pinout & Package
Package: T-18 axial-leaded plastic case (UL94V-0 epoxy), cathode indicated by band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side in regulation | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Reverse breakdown terminal / regulated output node | Banded end; connected to unregulated input rail to maintain 5.1 V at cathode-to-anode potential |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical dimensions and electrical behavior across global suppliers |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-protected workstations |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with lead-free matte-tin plating and halogen-free epoxy |
| High surge current capability | Withstands 14.4 A non-repetitive surges for robust overvoltage protection in industrial environments |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Zener reference sets error amplifier threshold; cathode connects to optocoupler LED anode. Use Value: Tight 5.1 V ±10% tolerance and low ΔVZ (0.39 V) ensure stable regulation across line/load variations. | Use Scenario: Placed across motor drive bus to clamp transients during inductive load switching. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbs energy during voltage spikes exceeding 5.1 V. Use Value: 14.4 A surge rating and 5 W steady-state dissipation enable reliable protection without derating. |
| Programmable Voltage Reference | Automotive Battery Monitor Threshold |
Use Scenario: Paired with resistor divider to generate precise 5.1 V reference for ADC input scaling. IC Role / Device Role / Timing Role: Provides stable, temperature-compensated reference independent of supply rail fluctuations. Use Value: Low dynamic impedance (1.5 Ω) minimizes reference error due to source impedance interaction. | Use Scenario: Detects battery overcharge condition (>5.1 V) in 12 V automotive systems with hysteresis. IC Role / Device Role / Timing Role: Reverse-biased Zener triggers comparator when battery voltage exceeds regulation threshold. Use Value: Wide operating temperature range (–65°C to +150°C) ensures reliability in under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5341B | ±5% tolerance (vs. ±10% for 1N5341AE3/TR12); same VZ, IZT, ZZ, and package | Higher precision regulation required where tighter voltage stability is critical | Select 1N5341B when ±5% tolerance is needed; otherwise 1N5341AE3/TR12 offers cost-effective standard tolerance |
| MMBZ5222BS | SOT-23 surface-mount package; 5.1 V ±5%, 225 mW power rating; not drop-in compatible | Space-constrained PCBs requiring automated placement instead of axial through-hole mounting | Choose MMBZ5222BS only for footprint-limited designs accepting reduced power handling (225 mW vs. 5 W) |
Compared with 1N5341B and MMBZ5222BS, the 1N5341AE3/TR12 provides optimal balance of axial-mount robustness, 5 W power handling, and RoHS compliance-making it preferred for industrial power supplies where thermal margin and mechanical reliability outweigh miniaturization needs.
Availability
1N5341AE3/TR12 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage clamps, and programmable voltage references requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5341AE3/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 thermal robustness, surge resilience, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of the 1N5341AE3/TR12?
The 1N5341AE3/TR12 has a Zener voltage tolerance of ±10%, as indicated by the "A" suffix in its part number. This means its nominal 5.1 V regulation point falls within 4.59 V to 5.61 V at 240 mA test current and 25°C lead temperature. The "e3" suffix confirms RoHS compliance, and "TR12" denotes tape-and-reel packaging per EIA-296 standard. This tolerance is verified in the manufacturer's published electrical characteristics table.
How much power can the 1N5341AE3/TR12 dissipate continuously?
The 1N5341AE3/TR12 is rated for 5.0 W continuous power dissipation at a lead temperature (TL) of 25°C with 3/8" (10 mm) lead length from the body. Derating is required above 25°C per Figure 1 in the datasheet, reaching zero dissipation at TL = 150°C. When mounted on FR4 with 1 oz copper, its steady-state power drops to 1.47 W at 25°C ambient due to higher junction-to-ambient thermal resistance (85°C/W).
What is the maximum surge current rating for the 1N5341AE3/TR12?
The 1N5341AE3/TR12 has a maximum non-repetitive surge current (IZSM) rating of 14.4 A for an 8.3 ms half-sine waveform. This value is specified in the Electrical Characteristics table and reflects the device's ability to absorb transient energy without failure-critical for overvoltage protection in motor drives and power supplies. Surge testing follows JEDEC standards and assumes proper PCB layout with adequate copper area for thermal relief.
Is the 1N5341AE3/TR12 suitable for automotive under-hood applications?
Yes, the 1N5341AE3/TR12 is suitable for automotive under-hood applications due to its guaranteed operating temperature range of –65°C to +150°C and moisture sensitivity level 1 (no dry pack required). Its UL94V-0 epoxy body and matte-tin plating meet automotive assembly requirements. However, system-level validation-including thermal cycling and vibration testing-is required before deployment, as the device itself is not AEC-Q200 qualified.
What does the "TR12" suffix mean in 1N5341AE3/TR12?
"TR12" indicates tape-and-reel packaging per EIA-296 standard, with 12 mm tape width and component spacing optimized for automated pick-and-place equipment. This packaging format ensures consistent feeding, reduces handling damage, and supports high-volume manufacturing. The base part 1N5341AE3 remains electrically and thermally identical; TR12 affects only logistics and assembly-not performance or specifications of the 1N5341AE3/TR12.
1N5341AE3/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:
- ±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/TR12 FAQ
1.How can I place an order for 1N5341AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5341AE3/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 1N5341AE3/TR12 reliable?
The price and inventory of 1N5341AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5341AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5341AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5341AE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5341AE3/TR12?
1N5341AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5341AE3/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 1N5341AE3/TR12?
For technical support, including 1N5341AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5341AE3/TR12 requirements.
6.How does Aetrix verify that 1N5341AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5341AE3/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 1N5341AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5341AE3/TR12?
All 1N5341AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5341AE3/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 1N5341AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5341AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5341AE3/TR12 Tags
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