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Microchip Technology 1N5354CE3/TR13
- Part No.:
- 1N5354CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5354CE3/TR13.pdf
- Description:
- DIODE ZENER 17V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,381
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Product details
Overview
1N5354CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 17 V, ±2% tolerance (C suffix), 70 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 5.8 V maximum voltage regulation (ΔVZ) across 10–50% of IZM. It operates from –65°C to +150°C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5354CE3/TR13 datasheet, 1N5354CE3/TR13 pinout, 1N5354CE3/TR13 application, or 1N5354CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, with Zener voltage specified at 25 °C lead temperature using 70 mA dc test current. Its low dynamic impedance (≤2.5 Ω) ensures stable regulation under varying load currents, and its 25 °C/W junction-to-lead thermal resistance enables reliable 5 W dissipation with minimal heatsinking when leads are trimmed to 10 mm.
The 1N5354CE3/TR13 features a void-free thermosetting epoxy T-18 package rated UL94V-0, cathode band polarity marking, and moisture sensitivity level 1-no dry pack required. It withstands 8.3 ms half-sine surge currents up to 75 A and exhibits ≤0.35 V voltage regulation (ΔVZ) between 10% and 50% of maximum Zener current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17.0 V ±2% - precise reference point for feedback networks requiring tight regulation stability |
| Test Current (IZT) | 70 mA - operating point where VZ and ZZ are guaranteed; defines minimum bias for stable regulation |
| Dynamic Impedance (ZZ) | ≤2.5 Ω - low AC resistance ensures minimal output voltage variation under dynamic load changes |
| Max Voltage Regulation (ΔVZ) | ≤0.35 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Max Surge Current (IZSM) | 75 A (8.3 ms half-sine) - transient overvoltage clamping capability without failure |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables full 5 W power dissipation with 3/8″ (10 mm) lead length from body |
| Operating Temperature | –65°C to +150°C - suitable for industrial and aerospace environments with wide ambient swings |
Pinout & Package
Two-terminal axial-leaded T-18 package with cathode indicated by a colored band; leads are annealed matte-tin plated per MIL-STD-750 Method 2026 for solderability. No PCB footprint or pin numbering applies-device connects in series with load or shunt across regulated node.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to lower potential node; carries forward current up to 1.0 A (VF ≤1.2 V) |
| Cathode | Zener breakdown terminal / high-side connection | Banded end; connected to higher potential; regulates voltage when reverse biased above 17 V |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback loop control vs. ±5% (B) or ±10% (A) variants, reducing need for external trimming |
| RoHS-compliant e3 suffix | Meets EU RoHS Directive 2011/65/EU with matte-tin plating-no lead or hazardous substance restrictions in assembly |
| Level 1 moisture sensitivity | No dry pack or baking required before SMT/reflow; compatible with standard handling and storage protocols |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model ESD events without parameter shift-reduces handling precautions in production |
| High surge current rating (75 A) | Clamps transient overvoltages (e.g., inductive kickback or lightning-induced spikes) without degradation |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback path of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 17 V reference to TL431 or similar error amplifier. Use Value: ±2% tolerance ensures output regulation within ±1% over line/load/temperature, eliminating post-production calibration. | Use Scenario: Placed across motor driver outputs or relay coils to suppress inductive voltage spikes. IC Role / Device Role / Timing Role: Passive clamp limiting reverse transients to ≤17.35 V (VZ + ΔVZ) during turn-off. Use Value: 75 A surge rating absorbs 8.3 ms energy bursts without degradation, extending MOSFET/IGBT lifetime. |
| Industrial Sensor Excitation | Reference Voltage Source |
Use Scenario: Supplies stable excitation voltage to resistive bridge sensors (e.g., strain gauges) in harsh factory environments. IC Role / Device Role / Timing Role: Low-drift shunt regulator maintaining constant 17 V across sensor bridge despite supply ripple. Use Value: 25 °C/W thermal resistance allows direct mounting on metal chassis for stable thermal environment, minimizing drift. | Use Scenario: Provides clean 17 V reference for ADC front-end circuits in data acquisition modules. IC Role / Device Role / Timing Role: High-stability Zener reference replacing more expensive IC references where moderate accuracy suffices. Use Value: ≤2.5 Ω dynamic impedance reduces noise coupling into sensitive analog signal paths versus higher-Z alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5354B | Same 17 V nominal VZ but ±5% tolerance (B suffix); otherwise identical electrical specs and package | Acceptable where ±5% regulation is sufficient; lower cost due to relaxed tolerance screening | Select 1N5354B if system-level tolerance budget permits wider VZ variation and cost optimization is prioritized |
| MMBZ5246BS | Surface-mount SOD-123 package; 16 V nominal VZ, ±5%; max 200 mW power; not drop-in replaceable | Used in space-constrained PCBs where axial leads are impractical; unsuitable for 5 W dissipation | Choose MMBZ5246BS only for low-power, high-density layouts-requires redesign for thermal management and layout |
Compared with 1N5354B and MMBZ5246BS, the 1N5354CE3/TR13 delivers tighter voltage control (±2% vs. ±5%) and full 5 W power handling in an axial package, making it optimal for industrial power supplies and ruggedized protection circuits where precision and robustness are jointly required.
Availability
1N5354CE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and industrial sensor excitation requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5354CE3/TR13 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 as a JEDEC-registered family of 5 W axial Zeners for general-purpose voltage regulation and transient suppression, emphasizing thermal robustness, military-grade screening options, and broad voltage coverage (3.3–200 V).
FAQ
What is the Zener voltage tolerance of the 1N5354CE3/TR13?
The 1N5354CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its measured VZ at 70 mA and 25 °C lead temperature falls within 16.66 V to 17.34 V. This tighter tolerance supports higher-accuracy regulation than ±5% (B suffix) or ±10% (A suffix) variants, reducing system-level calibration needs.
Does the 1N5354CE3/TR13 require dry packing before use?
No, the 1N5354CE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored and processed under standard ambient conditions without baking or desiccant packaging. This simplifies handling and eliminates pre-reflow moisture mitigation steps in manufacturing.
What is the maximum surge current rating for the 1N5354CE3/TR13?
The 1N5354CE3/TR13 is rated for a maximum non-recurrent surge current (IZSM) of 75 A, defined as the peak of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy-such as inductive kickback or ESD-induced spikes-without parametric shift or catastrophic failure, supporting robust overvoltage protection designs.
How is polarity marked on the 1N5354CE3/TR13?
The 1N5354CE3/TR13 uses a cathode band marking: a single colored band near one end of the axial body identifies the cathode terminal. The diode must be operated with this banded end held at a higher potential than the anode to achieve Zener breakdown and regulation. Forward conduction occurs when the anode is positive relative to the banded cathode end.
What does the "TR13" suffix indicate in 1N5354CE3/TR13?
The "TR13" suffix indicates tape-and-reel packaging per EIA-296 standard, with 1,300 units per reel. This format supports automated pick-and-place assembly and ensures consistent orientation and spacing for high-volume SMT production. The base part 1N5354CE3 remains electrically and mechanically identical-only the packaging differs.
1N5354CE3/TR13 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):
- 17 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 12.2 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
1N5354CE3/TR13 FAQ
1.How can I place an order for 1N5354CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5354CE3/TR13 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 1N5354CE3/TR13 reliable?
The price and inventory of 1N5354CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5354CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5354CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5354CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5354CE3/TR13?
1N5354CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5354CE3/TR13 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 1N5354CE3/TR13?
For technical support, including 1N5354CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5354CE3/TR13 requirements.
6.How does Aetrix verify that 1N5354CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5354CE3/TR13 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 1N5354CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5354CE3/TR13?
All 1N5354CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5354CE3/TR13, 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 1N5354CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5354CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5354CE3/TR13 Tags
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