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Microchip Technology 1N5340AE3/TR12
- Part No.:
- 1N5340AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5340AE3/TR12.pdf
- Description:
- DIODE ZENER 6V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,343
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Product details
Overview
1N5340AE3/TR12 from Microsemi is a 6.0 V, ±10% 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 1N5340AE3/TR12 datasheet, 1N5340AE3/TR12 pinout, 1N5340AE3/TR12 application, or 1N5340AE3/TR12 equivalent, key selection criteria include its 6.0 V nominal Zener voltage, ±10% tolerance (A suffix), 790 mA maximum regulator current (IZM), 1.0 Ω Zener impedance at 200 mA, 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 (10%–50% of IZM) with minimal voltage variation (ΔVZ = 0.19 V). Its low thermal resistance (25 °C/W junction-to-lead at 10 mm lead length) enables reliable 5 W operation under adequate heat sinking.
The 1N5340AE3/TR12 exhibits robust surge capability (12.7 A peak half-sine, 8.3 ms), low reverse leakage (<1.0 µA at 4.9 V), and stable knee impedance (500 Ω at 1.0 mA), making it suitable for transient suppression and feedback loop stabilization where tight voltage control and high reliability are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.0 V nominal, ±10% tolerance - defines precise regulation point for feedback or clamping circuits. |
| Test Current (IZT) | 200 mA - operating point at which VZ and ZZ are specified; ensures stable regulation under typical load conditions. |
| Dynamic Impedance (ZZ) | 1.0 Ω at IZT - low AC resistance minimizes output voltage ripple and improves regulation accuracy. |
| Max Regulator Current (IZM) | 790 mA - maximum continuous DC current at 25°C lead temperature; determines safe power dissipation limit (5 W). |
| Reverse Leakage (IR) | <1.0 µA at 4.9 V - ensures negligible standby current in high-impedance bias networks. |
| Voltage Regulation (ΔVZ) | 0.19 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity. |
| Surge Current (IZSM) | 12.7 A (8.3 ms half-sine) - supports transient overvoltage handling without failure. |
Pinout & Package
Package: T-18 axial-leaded plastic case (Void-free UL94V-0 epoxy), cathode indicated by color band; leads plated with RoHS-compliant annealed matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes reference potential for Zener conduction. |
| Cathode | Regulated output node | Banded end; supplies stable 6.0 V when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions for interchangeability. |
| RoHS-compliant (e3 suffix) | Lead-free matte-tin plating meets environmental compliance requirements without solderability compromise. |
| Moisture sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly. |
| High surge current rating | 12.7 A non-recurrent surge withstand enables use in unregulated input stages exposed to line transients. |
| Low thermal resistance | 25 °C/W junction-to-lead (3/8″ lead length) supports full 5 W dissipation with minimal heatsinking. |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator or switching converter error amplifiers. IC Role / Device Role / Timing Role: Shunt reference providing fixed 6.0 V reference point for comparator or op-amp inputs. Use Value: Maintains ±10% regulation accuracy across 20–394 mA operating range, minimizing output drift due to load or temperature variation. |
Use Scenario: Clamping transient spikes on 5 V or 6 V rail in industrial control I/O modules. IC Role / Device Role / Timing Role: Passive overvoltage clamp absorbing energy during ESD or inductive kick events. Use Value: Withstands 12.7 A surge (8.3 ms) while limiting voltage to ≤6.6 V, protecting downstream logic and analog circuitry. |
| Current Source Biasing | Signal Level Translation |
Use Scenario: Generating stable bias current for transistor amplifier stages in analog sensor front-ends. IC Role / Device Role / Timing Role: Constant-voltage element establishing predictable emitter/base bias via series resistor. Use Value: Delivers <1.0 µA leakage at 4.9 V, ensuring minimal error in microamp-level bias networks. |
Use Scenario: Shifting TTL or CMOS logic levels to match mixed-voltage interface requirements (e.g., 3.3 V ↔ 5 V). IC Role / Device Role / Timing Role: Clamp diode defining upper voltage rail for level-shifting buffer circuits. Use Value: 1.0 Ω dynamic impedance ensures fast response to signal edges without overshoot or distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5340B | Same 6.0 V nominal, but ±5% tolerance (B suffix) and higher IZM (865 mA); no e3 RoHS marking. | Preferred where tighter voltage tolerance is required and RoHS compliance is not mandated. | Select 1N5340B for improved regulation accuracy in non-RoHS environments; verify lead finish compatibility with solder process. |
| MMBZ5234B-TP | Surface-mount SOT-23 package; 6.0 V, ±5%; lower power (500 mW), lower IZM (83 mA). | Suitable only for low-power biasing or signal conditioning-not for 5 W regulation or surge clamping. | Choose MMBZ5234B-TP only for space-constrained PCBs with sub-100 mA current demands; not a functional replacement for 1N5340AE3/TR12. |
Compared with 1N5340B and MMBZ5234B-TP, the 1N5340AE3/TR12 uniquely combines 5 W power handling, RoHS compliance, axial-leaded mounting flexibility, and ±10% tolerance-making it optimal for industrial power supply references where thermal robustness and regulatory compliance are jointly critical.
Availability
1N5340AE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and analog bias networks requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5340AE3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and JEDEC-standardized interchangeability across military and commercial applications.
FAQ
What is the Zener voltage tolerance of the 1N5340AE3/TR12?
The 1N5340AE3/TR12 has a nominal Zener voltage of 6.0 V with a ±10% tolerance, as indicated by the "A" suffix in the part number. This means the actual measured VZ falls between 5.4 V and 6.6 V at 200 mA test current and 25°C lead temperature. The tolerance is verified per JEDEC standard testing conditions and applies across the full operating temperature range.
Is the 1N5340AE3/TR12 RoHS compliant?
Yes, the 1N5340AE3/TR12 is RoHS compliant, confirmed by the "e3" suffix in the part number. It uses annealed matte-tin plating on leads per MIL-STD-750 Method 2026 and void-free UL94V-0 epoxy encapsulation. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed EU RoHS Directive limits.
What is the maximum continuous current rating for the 1N5340AE3/TR12?
The 1N5340AE3/TR12 has a maximum regulator current (IZM) of 790 mA at 25°C lead temperature, corresponding to its 5 W power rating. This value assumes 3/8″ (10 mm) lead length from the body; derating is required above 25°C per the published thermal curve. At 100°C lead temperature, IZM drops to approximately 3.0 A × (1 − (100−25)/125) = ~2.4 A equivalent, but power is capped at 5 W.
Does the 1N5340AE3/TR12 have a defined surge current rating?
Yes, the 1N5340AE3/TR12 is rated for a non-recurrent surge current (IZSM) of 12.7 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating is validated per JEDEC test methods and reflects the device's ability to absorb transient energy without parametric shift or catastrophic failure-critical for overvoltage protection in industrial power rails.
How is polarity marked on the 1N5340AE3/TR12?
The 1N5340AE3/TR12 uses a cathode band marking: a single colored band near one end of the axial package identifies the cathode terminal. The diode must be operated with the banded end held positive relative to the anode (i.e., reverse-biased) to achieve Zener conduction. This marking is consistent across all 1N53xx series devices and aligns with JEDEC T-18 package standards.
1N5340AE3/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:
- ±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
1N5340AE3/TR12 FAQ
1.How can I place an order for 1N5340AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5340AE3/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 1N5340AE3/TR12 reliable?
The price and inventory of 1N5340AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5340AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5340AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5340AE3/TR12 transactions.
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4.How is shipping managed for 1N5340AE3/TR12?
1N5340AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5340AE3/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 1N5340AE3/TR12?
For technical support, including 1N5340AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5340AE3/TR12 requirements.
6.How does Aetrix verify that 1N5340AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5340AE3/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 1N5340AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5340AE3/TR12?
All 1N5340AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5340AE3/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 1N5340AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5340AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5340AE3/TR12 Tags
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