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Microchip Technology 1N5340BE3/TR12
- Part No.:
- 1N5340BE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5340BE3/TR12.pdf
- Description:
- DIODE ZENER 6V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,813
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Product details
Overview
1N5340BE3/TR12 from Microsemi is a 6.0 V, ±5% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply reference and overvoltage protection circuits. It delivers stable regulation at 200 mA test current with 1.0 Ω dynamic impedance, operates from –65°C to +150°C, and features RoHS-compliant matte-tin plating per MIL-STD-750.
For engineers reviewing the 1N5340BE3/TR12 datasheet, 1N5340BE3/TR12 pinout, 1N5340BE3/TR12 application, or 1N5340BE3/TR12 equivalent, key selection criteria include its 6.0 V nominal Zener voltage, 790 mA maximum regulator current (IZM), 1.0 Ω Zener impedance (ZZ), 0.19 V voltage regulation (ΔVZ), and T-18 axial package with cathode band polarity marking.
Technical Context
This device functions as a precision shunt voltage regulator, maintaining a stable 6.0 V reference across a wide operating current range (1.0 mA to 790 mA) and temperature span (–65°C to +150°C). Its low 1.0 Ω dynamic impedance ensures minimal voltage variation under load changes.
The 1N5340BE3/TR12 employs a void-free thermosetting epoxy case (UL94V-0), tin-lead or RoHS-compliant matte-tin leads, and meets moisture sensitivity Level 1 per J-STD-020B-no dry pack required. It withstands 18.7 A non-repetitive surge current (8.3 ms half-sine) and exhibits <0.19 V regulation shift between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.0 V ±5% - precise reference for feedback loops in linear regulators and DC-DC converters |
| Test Current (IZT) | 200 mA - defined operating point for guaranteed VZ and impedance specs |
| Dynamic Impedance (ZZ) | 1.0 Ω - low AC resistance ensures tight voltage stability under varying load currents |
| Max Regulator Current (IZM) | 790 mA - maximum continuous DC current at 25°C lead temperature with adequate heat sinking |
| Voltage Regulation (ΔVZ) | 0.19 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Surge Current (IZSM) | 18.7 A - peak non-repetitive current handling for transient overvoltage suppression |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead resistance enables thermal design with 3/8″ (10 mm) lead length |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated diode with cathode indicated by color band; void-free UL94V-0 epoxy body; 0.7 g weight; RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal during reverse bias | Connected to lower potential node; forms regulated reference node at cathode |
| Cathode | Regulated output terminal | Banded end; held at stable 6.0 V when reverse-biased above breakdown; referenced to system ground or return path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Industry-standard 1N53xxB series ensures cross-manufacturer compatibility and design continuity |
| ±5% voltage tolerance (B suffix) | Guarantees VZ within 5.7–6.3 V at 200 mA, enabling predictable feedback accuracy |
| RoHS-compliant (e3 suffix) | Meets global environmental compliance without performance trade-offs or derating |
| Level 1 moisture sensitivity | No dry pack or baking required before PCB assembly-reduces manufacturing overhead |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly and testing |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in adjustable linear regulators (e.g., LM317) and fixed-output DC-DC converter references. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.0 V setpoint for error amplifier input. Use Value: Enables ±1% output regulation accuracy with minimal external components and no trimming required. |
Use Scenario: Clamping transient surges on 5 V or 6 V logic rails, microcontroller I/O lines, or sensor signal paths. IC Role / Device Role / Timing Role: Passive crowbar element that conducts above 6.3 V to divert excess energy to ground. Use Value: Absorbs up to 18.7 A surge (8.3 ms) without failure, protecting downstream ICs rated for ≤6.5 V absolute max. |
| Industrial Sensor Excitation | Automotive Body Control Module |
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., pressure, load cells) in harsh environments. IC Role / Device Role / Timing Role: Low-drift voltage source ensuring consistent sensor output scaling across temperature. Use Value: Maintains <0.19 V regulation shift from 79 mA to 395 mA, minimizing measurement error due to supply variation. |
Use Scenario: Regulating auxiliary 6 V rail for interior lighting drivers, window motor controllers, or HVAC actuators. IC Role / Device Role / Timing Role: Primary shunt regulator in discrete LDO-like topology for cost-sensitive modules. Use Value: Operates reliably from –40°C to +125°C ambient with full 5 W dissipation capability when heatsinked. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5340B (non-e3) | Same electrical specs but SnPb lead finish; not RoHS-compliant | Permitted only in exempted industrial/military legacy designs | Select 1N5340BE3/TR12 for new RoHS-compliant production; use 1N5340B only if Pb exemption applies |
| MMBZ5234B (SOT-23) | Surface-mount, 500 mW rating, 6.0 V ±5%, 17 Ω ZZ | Limited to low-power signal-level regulation; unsuitable for >100 mA loads | Choose MMBZ5234B only for space-constrained PCBs where power dissipation ≤0.5 W is sufficient |
Compared with 1N5340B and MMBZ5234B, the 1N5340BE3/TR12 uniquely combines 5 W power handling, axial through-hole mounting for mechanical robustness, RoHS compliance, and sub-1 Ω impedance-making it optimal for high-current, high-reliability industrial power regulation where thermal management and regulatory compliance are critical.
Availability
1N5340BE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and sensor interface circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5340BE3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed for ruggedized voltage regulation in mission-critical power systems-emphasizing wide temperature operation, surge resilience, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5340BE3/TR12?
The 1N5340BE3/TR12 has a ±5% Zener voltage tolerance, meaning its nominal 6.0 V breakdown voltage is guaranteed between 5.7 V and 6.3 V when tested at 200 mA and 25°C lead temperature. This tolerance is designated by the "B" suffix in the part number and is confirmed in Microsemi's official datasheet revision D.
Can the 1N5340BE3/TR12 be used in surface-mount designs?
No-the 1N5340BE3/TR12 uses a T-18 axial-leaded package and is not surface-mount compatible. For SMT equivalents, Microsemi offers the SMBJ5340B or SMBG5340B in DO-214AA/DO-214AB packages. The 1N5340BE3/TR12 requires through-hole mounting with ≥10 mm lead length for thermal derating compliance.
What is the maximum continuous current the 1N5340BE3/TR12 can handle?
The 1N5340BE3/TR12 supports a maximum continuous Zener current (IZM) of 790 mA at 25°C lead temperature with adequate heat sinking. At ambient temperature on FR4 PCB (1 oz Cu, 4 mm² pads), its steady-state power drops to 1.47 W-requiring thermal design review per Figure 1 in the datasheet.
Does the 1N5340BE3/TR12 require moisture preconditioning before reflow?
No-the 1N5340BE3/TR12 has IPC/JEDEC moisture sensitivity Level 1, meaning it may be stored indefinitely at ≤30°C/60% RH without dry packing or baking. Its void-free epoxy encapsulation eliminates moisture ingress risk, simplifying PCB assembly logistics.
How does the 1N5340BE3/TR12 compare to the 1N4735A in terms of regulation performance?
The 1N5340BE3/TR12 offers superior regulation versus the 1N4735A: it delivers 1.0 Ω dynamic impedance (vs. 15 Ω for 1N4735A), 0.19 V voltage regulation (ΔVZ) across 10–50% IZM (vs. ~1.0 V), and 5 W power rating (vs. 1 W). These attributes make the 1N5340BE3/TR12 suitable for higher-current, tighter-regulation applications where the 1N4735A would thermally saturate or drift.
1N5340BE3/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 V
- Tolerance:
- ±5%
- 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
1N5340BE3/TR12 FAQ
1.How can I place an order for 1N5340BE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5340BE3/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 1N5340BE3/TR12 reliable?
The price and inventory of 1N5340BE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5340BE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5340BE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5340BE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5340BE3/TR12?
1N5340BE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5340BE3/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 1N5340BE3/TR12?
For technical support, including 1N5340BE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5340BE3/TR12 requirements.
6.How does Aetrix verify that 1N5340BE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5340BE3/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 1N5340BE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5340BE3/TR12?
All 1N5340BE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5340BE3/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 1N5340BE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5340BE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5340BE3/TR12 Tags
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MM5Z5V1ST1G
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