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Microchip Technology 1N5350CE3/TR13
- Part No.:
- 1N5350CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5350CE3/TR13.pdf
- Description:
- DIODE ZENER 13V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,697
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Product details
Overview
1N5350CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 13 V, ±2% tolerance (C suffix), 2.5 Ω maximum dynamic impedance at 100 mA test current, and 365 Ω maximum knee impedance at 1 mA. 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 1N5350CE3/TR13 datasheet, 1N5350CE3/TR13 pinout, 1N5350CE3/TR13 application, or 1N5350CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (7.0 A), voltage regulation (ΔVZ = 0.25 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-bias mode, maintaining stable output voltage across wide current (100 mA IZT to 7.0 A IZSM) and temperature ranges. Its low dynamic impedance ensures minimal voltage deviation under load transients.
The 1N5350CE3/TR13 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 260 °C soldering (10 s), and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±2% - precise regulation point for feedback networks requiring tight voltage stability |
| Power Dissipation (PD) | 5.0 W at 25 °C lead temperature - supports high-current regulation when mounted with ≥10 mm lead length |
| Dynamic Impedance (ZZ) | 2.5 Ω max @ 100 mA - low AC impedance ensures minimal ripple transmission in reference paths |
| Max Regulator Current (IZM) | 365 mA - maximum continuous DC current before thermal derating begins |
| Surge Current (IZSM) | 7.0 A (8.3 ms half-sine) - withstands transient overloads without degradation |
| Voltage Regulation (ΔVZ) | 0.25 V - difference between voltages measured at 10% and 50% of IZM, indicating line regulation quality |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables predictable thermal design with standard lead-mount heatsinking |
Pinout & Package
Package: T-18 axial-leaded plastic case (void-free UL94V-0 epoxy), cathode indicated by colored 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 reference node | Connected to ground or lower-potential rail in shunt regulator configuration |
| Cathode | Zener regulation terminal / high-voltage reference node | Banded end; connected to unregulated input; establishes stable 13 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables use in applications requiring tighter regulation than standard ±5% (B) or ±10% (A) parts |
| RoHS-compliant e3 suffix | Meets EU RoHS Directive 2011/65/EU with lead-free matte-tin plating and halogen-free epoxy |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints during PCB assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-protected workstations |
| High surge current capability (7.0 A) | Provides robustness against line transients and inductive switching spikes without external clamping |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Used in TL431-based or discrete op-amp feedback circuits to regulate 13 V output in 24 V-input DC-DC converters. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 13 V setpoint for error amplifier comparison. Use Value: ±2% tolerance ensures output accuracy remains within ±0.5% over line/load/temperature, meeting EN 62368-1 safety margin requirements. | Use Scenario: Supplies excitation voltage to bridge-based pressure sensors in factory automation systems operating at 85 °C ambient. IC Role / Device Role / Timing Role: Precision bias source replacing higher-cost IC references where 13 V stability suffices. Use Value: 25 °C/W junction-to-lead thermal resistance allows direct lead-mount heatsinking on metal chassis, avoiding thermal drift beyond ±0.01%/°C. |
| Overvoltage Protection Clamp | Programmable Logic Controller Input Conditioning |
Use Scenario: Placed across 12 V logic rails to clamp surges exceeding 13.26 V (13 V × 1.02) in motor drive control boards. IC Role / Device Role / Timing Role: Fast-acting crowbar element limiting transient voltage before downstream logic damage. Use Value: 7.0 A surge rating handles 100 V/μs transients per IEC 61000-4-4 level 4 without parameter shift or failure. | Use Scenario: Biasing optocoupler input LEDs in PLC digital input modules accepting 24 V nominal field signals. IC Role / Device Role / Timing Role: Stable 13 V reference defining turn-on threshold for signal detection circuitry. Use Value: Low ΔVZ (0.25 V) ensures consistent LED current across 10–30 V input range, eliminating false triggering during brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | Same 13 V nominal voltage 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 1N5350B if system-level calibration compensates for initial voltage variation |
| MMSZ5243ET1G | Surface-mount SOD-123 package; 13 V ±5%; 500 mW rating; 30 Ω ZZ @ 20 mA | Not suitable for 5 W dissipation; limited to low-power bias/reference roles | Choose MMSZ5243ET1G only for space-constrained PCBs where power < 0.5 W and thermal mass is insufficient for axial-leaded mounting |
Compared with 1N5350B and MMSZ5243ET1G, the 1N5350CE3/TR13 delivers tighter voltage accuracy and higher power handling in an axial-leaded form factor ideal for industrial power supplies requiring field-replaceability and mechanical robustness.
Availability
1N5350CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, overvoltage protection circuits, and programmable logic controller input conditioning requiring stable component supply and long-term obsolescence management.
Supply support for 1N5350CE3/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 for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal resilience, surge immunity, and long-term parametric stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5350CE3/TR13?
The 1N5350CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in the part number. This means its actual regulation voltage falls between 12.74 V and 13.26 V at 25 °C lead temperature with 100 mA test current. The tighter tolerance supports applications demanding higher initial accuracy without post-assembly calibration.
Can the 1N5350CE3/TR13 be used in surface-mount designs?
No-the 1N5350CE3/TR13 is an axial-leaded T-18 package and is not compatible with surface-mount assembly processes. For SMT equivalents, Microsemi offers the SMBJ5350B series in DO-214AA (SMB) package, which shares the same 13 V ±2% specification but requires reflow-compatible layout and thermal pad design.
What is the maximum steady-state power dissipation of the 1N5350CE3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5350CE3/TR13 has a steady-state power rating of 1.47 W at 25 °C ambient. This is derived from its 85 °C/W junction-to-ambient thermal resistance; exceeding this requires forced air or metal-core board enhancements.
Does the 1N5350CE3/TR13 require dry packing before PCB assembly?
No-the 1N5350CE3/TR13 carries IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, meaning it has no floor-life limitation and does not require dry packing or baking prior to reflow soldering. This simplifies inventory handling and reduces assembly process steps.
How is polarity marked on the 1N5350CE3/TR13?
The 1N5350CE3/TR13 uses a cathode band (colored stripe) to indicate polarity: the banded end is the cathode and must be connected to the higher-potential node in shunt regulation configurations. The opposite (unbanded) end is the anode and connects to ground or the lower-potential reference point.
1N5350CE3/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):
- 13 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.4 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
1N5350CE3/TR13 FAQ
1.How can I place an order for 1N5350CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5350CE3/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 1N5350CE3/TR13 reliable?
The price and inventory of 1N5350CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5350CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5350CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5350CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5350CE3/TR13?
1N5350CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5350CE3/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 1N5350CE3/TR13?
For technical support, including 1N5350CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5350CE3/TR13 requirements.
6.How does Aetrix verify that 1N5350CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5350CE3/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 1N5350CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5350CE3/TR13?
All 1N5350CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5350CE3/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 1N5350CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5350CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5350CE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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