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Microchip Technology 1N5356CE3/TR13
- Part No.:
- 1N5356CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5356CE3/TR13.pdf
- Description:
- DIODE ZENER 19V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,893
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Product details
Overview
1N5356CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 19 V, ±2% tolerance (C suffix), 3.0 Ω maximum dynamic impedance at 65 mA test current, and 75 mA maximum regulator current (IZM) at 25 °C lead temperature. It operates from −65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in DC power supplies.
For engineers reviewing the 1N5356CE3/TR13 datasheet, 1N5356CE3/TR13 pinout, 1N5356CE3/TR13 application, or 1N5356CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), reverse leakage performance at 14.4 V, and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage reference, operating in reverse breakdown with minimal voltage variation across its specified current range (10–50% of IZM). Its low dynamic impedance (3.0 Ω) and tight ±2% VZ tolerance enable stable regulation under varying load conditions.
The 1N5356CE3/TR13 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5.0 W steady-state dissipation at 25 °C lead temperature and derated linearly above that point. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19 V ±2% at 65 mA - ensures precise reference stability for feedback loops in regulated DC-DC converters. |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - supports high-current regulation when mounted with ≥10 mm lead length from body. |
| Dynamic Impedance (ZZ) | 3.0 Ω max at IZT = 65 mA - minimizes output voltage deviation during transient load changes. |
| Max Regulator Current (IZM) | 75 mA at TL = 25 °C - defines safe continuous reverse-bias operating limit before thermal runaway. |
| Reverse Leakage (IR) | 0.5 μA max at VR = 14.4 V - guarantees low standby power loss in always-on reference circuits. |
| Surge Current (IZSM) | 75 A peak (8.3 ms half-sine) - provides robust transient overvoltage clamping capability. |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables accurate thermal design when heatsinking via leads. |
Pinout & Package
Package: T-18 axial-leaded plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band; leads are RoHS-compliant annealed matte-tin plated per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse bias applied between cathode and anode. |
| Cathode | Zener breakdown terminal / voltage regulation output | Banded end; connected to regulated voltage rail; reverse voltage applied here relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback control in precision power supplies without external trimming. |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with matte-tin plating - no lead or hazardous substance restrictions in production. |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life tracking - simplifies SMT and through-hole handling. |
| High surge current rating (75 A) | Clamps ESD and lightning-induced transients without degradation in industrial I/O protection circuits. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model discharges up to ±15 kV - suitable for unshielded board-level deployment. |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Precision voltage reference in isolated flyback converter feedback network. IC Role / Device Role / Timing Role: Zener diode providing stable 19 V reference to optocoupler input for secondary-side regulation. Use Value: ±2% tolerance and 3.0 Ω dynamic impedance maintain <±0.5% output voltage drift across line/load/temperature. |
Use Scenario: Clamp circuit protecting microcontroller I/O pins from 24 V field wiring surges. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground during transients. Use Value: 75 A surge rating and 0.5 μA leakage at 14.4 V ensure reliable clamping without false triggering. |
| Automotive Body Control Module | Test Equipment Calibration Reference |
Use Scenario: Stable bias reference for analog sensor signal conditioning in 12 V vehicle systems. IC Role / Device Role / Timing Role: Zener-based voltage reference for ADC reference buffer in LIN bus node. Use Value: −65 °C to +150 °C operating range and low ΔVZ (0.40 V) ensure accuracy across engine bay thermal cycles. |
Use Scenario: Fixed-voltage calibration standard in portable multimeter internal reference divider. IC Role / Device Role / Timing Role: Primary 19 V reference element in precision resistive divider network. Use Value: Tight ±2% tolerance and minimal voltage regulation drift (ΔVZ = 0.40 V) support Class II metrology accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5356B | Same 19 V nominal VZ, but ±5% tolerance (B suffix) and higher ZZ (3.0 Ω vs. 3.0 Ω - identical spec, but B-grade may exhibit wider batch variation) | Acceptable where ±5% regulation is sufficient; not suitable for precision feedback requiring ±2%. | Select 1N5356B only if cost sensitivity outweighs tolerance requirements and thermal derating margin is adequate. |
| MMBZ5242B (SOT-23) | Surface-mount 15 V Zener, 0.25 W rating, ±5% tolerance - differs in voltage, power, package, and mounting method. | Used in space-constrained PCBs where axial T-18 lead spacing is incompatible with layout. | Choose MMBZ5242B only for low-power, high-density designs; not a functional replacement for 5 W regulation needs. |
Compared with 1N5356B and MMBZ5242B, the 1N5356CE3/TR13 uniquely delivers ±2% tolerance, 5 W power handling, and axial-leaded mechanical robustness - making it optimal for industrial power supply references where precision, thermal resilience, and through-hole reliability are jointly required.
Availability
1N5356CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection circuit, and automotive body control module applications requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant sourcing.
Supply support for 1N5356CE3/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 specifically for ruggedized 5 W voltage regulation in harsh-environment power systems - emphasizing thermal stability, surge resilience, and military-grade screening compatibility.
FAQ
What is the Zener voltage tolerance of the 1N5356CE3/TR13?
The 1N5356CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ at 65 mA test current falls within 18.62 V to 19.38 V at 25 °C lead temperature. This tight tolerance supports precision regulation in feedback networks where output accuracy is critical, such as in medical power supplies or calibrated instrumentation using the 1N5356CE3/TR13 as a reference.
Does the 1N5356CE3/TR13 require dry packing before PCB assembly?
No, the 1N5356CE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it does not require dry packing or floor-life controls prior to soldering. Its void-free epoxy T-18 package is inherently resistant to moisture absorption, allowing indefinite storage and immediate use in both wave and reflow processes - a key advantage for high-mix manufacturing using the 1N5356CE3/TR13.
What is the maximum surge current rating for the 1N5356CE3/TR13?
The 1N5356CE3/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 without parametric shift or failure, making it suitable for clamping inductive kickback or ESD events in motor drive interfaces where the 1N5356CE3/TR13 serves as primary overvoltage protection.
How does the thermal resistance of the 1N5356CE3/TR13 affect PCB layout?
The 1N5356CE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when leads are trimmed to 10 mm from the body. To maintain safe operation at full 5 W dissipation, PCB layout must ensure adequate copper mass on both leads - typically ≥4 mm² pads with ≥1 mm wide traces - or implement forced-air cooling. Poor thermal path design risks exceeding the 150 °C max junction temperature, degrading long-term reliability of the 1N5356CE3/TR13.
Is the 1N5356CE3/TR13 compatible with lead-free reflow profiles?
Yes, the 1N5356CE3/TR13 features RoHS-compliant matte-tin plating qualified for soldering at 260 °C for 10 seconds - fully compatible with standard lead-free reflow profiles (e.g., JEDEC J-STD-020). Its T-18 epoxy body meets UL94V-0 flammability requirements and withstands repeated thermal cycling without delamination, ensuring consistent solder joint integrity in production using the 1N5356CE3/TR13.
1N5356CE3/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):
- 19 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 13.7 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
1N5356CE3/TR13 FAQ
1.How can I place an order for 1N5356CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5356CE3/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 1N5356CE3/TR13 reliable?
The price and inventory of 1N5356CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5356CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5356CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5356CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5356CE3/TR13?
1N5356CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5356CE3/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 1N5356CE3/TR13?
For technical support, including 1N5356CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5356CE3/TR13 requirements.
6.How does Aetrix verify that 1N5356CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5356CE3/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 1N5356CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5356CE3/TR13?
All 1N5356CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5356CE3/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 1N5356CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5356CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5356CE3/TR13 Tags
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