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Microchip Technology 1N5352CE3/TR13
- Part No.:
- 1N5352CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5352CE3/TR13.pdf
- Description:
- DIODE ZENER 15V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,929
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Product details
Overview
1N5352CE3/TR13 from Microsemi is a 15 V, ±2% tolerance, 5 W axial-leaded silicon Zener diode optimized for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation. It delivers 75 mA maximum Zener current (IZM) at 25°C with 2.5 Ω dynamic impedance (ZZ) and operates across –65°C to +150°C.
For engineers reviewing the 1N5352CE3/TR13 datasheet, 1N5352CE3/TR13 pinout, 1N5352CE3/TR13 application, or 1N5352CE3/TR13 equivalent, key selection criteria include its tight ±2% VZ tolerance, low 2.5 Ω Zener impedance at 75 mA test current, RoHS-compliant matte-tin plating, and T-18 axial package suitable for through-hole PCB mounting with minimal thermal derating on FR4.
Technical Context
This device functions as a two-terminal shunt regulator, maintaining stable 15 V output by conducting reverse current above its breakdown threshold. Its design supports high surge immunity (6.3 A IZSM, 8.3 ms half-sine) and exhibits minimal voltage drift (ΔVZ = 0.25 V) between 10% and 50% of IZM.
Thermal performance is defined by 25 °C/W junction-to-lead resistance at 10 mm lead length and 85 °C/W junction-to-ambient on standard FR4 (1 oz Cu, 4 mm² pad). Forward voltage is capped at 1.2 V @ 1.0 A, confirming robust conduction capability during transient forward bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±2% - precise regulation point for feedback networks requiring tight DC accuracy |
| Power Dissipation (Pd) | 5.0 W at TL < 25°C - enables high-current regulation without forced cooling when leads are heat-sunk |
| Zener Test Current (IZT) | 75 mA - operating point where VZ and ZZ are specified; matches typical SMPS feedback divider currents |
| Dynamic Impedance (ZZ) | 2.5 Ω - low AC impedance ensures minimal output voltage variation under load transients |
| Max Reverse Current (IR) | 1.0 μA @ 10.8 V - guarantees negligible leakage below regulation threshold, critical for low-power standby modes |
| Voltage Regulation (ΔVZ) | 0.25 V - difference between VZ measured at 7.5 mA and 37.5 mA, indicating stability across operating range |
| Surge Current (IZSM) | 6.3 A (8.3 ms half-sine) - withstands common AC line surges and inductive kickback without degradation |
Pinout & Package
Package: T-18 axial-leaded plastic case (Void-free UL94V-0 epoxy), cathode indicated by band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener breakdown terminal / regulation output node | Banded end; connected to regulated rail or error amplifier input; must be held >15 V relative to anode to activate regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Reduces need for post-production trimming in precision references and analog sensor interfaces |
| Moisture sensitivity Level 1 (J-STD-020B) | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT and manual assembly logistics |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables handling without special grounding protocols in standard production environments |
| High surge current rating (6.3 A) | Provides inherent transient overvoltage clamping without external TVS devices in industrial power inputs |
| e3 RoHS-compliant plating | Meets global environmental compliance requirements without sacrificing solderability or long-term reliability |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Protection |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Shunt reference providing stable 15 V reference to TL431 or similar error amplifier. Use Value: ±2% VZ tolerance ensures output accuracy within ±1% over line/load/temperature, reducing need for digital calibration. | Use Scenario: Clamps rail voltage during lightning-induced surges in 24 V PLC I/O modules. IC Role / Device Role / Timing Role: Primary shunt protector absorbing transient energy before downstream regulators fail. Use Value: 6.3 A surge rating handles 1 kV/500 A ring wave transients per IEC 61000-4-5 without degradation. |
| Programmable Logic Controller Reference | Automotive Body Control Module |
Use Scenario: Supplies stable 15 V bias to ADC reference buffers and analog front-end op-amps. IC Role / Device Role / Timing Role: Precision voltage source replacing more expensive bandgap ICs in cost-sensitive industrial controllers. Use Value: 2.5 Ω ZZ minimizes noise coupling into 16-bit ADC conversions, improving effective resolution by ≥1 LSB. | Use Scenario: Regulates 15 V supply for LIN transceiver and microcontroller peripherals in door module ECUs. IC Role / Device Role / Timing Role: Secondary shunt regulator stabilizing local rail against battery voltage fluctuations and load dump spikes. Use Value: –65°C to +150°C operating range meets AEC-Q101 temperature requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | ±5% VZ tolerance, same 15 V nominal, identical package and IZM | Lower accuracy acceptable in non-critical biasing or coarse overvoltage detection | Select when ±5% regulation suffices and cost is prioritized over precision |
| MMBZ5245BS-7-F | Surface-mount SOD-123 package, 15 V ±5%, 250 mW Pd, 100 mA IZM | Designed for space-constrained PCBs; unsuitable for 5 W continuous dissipation | Choose only for low-power signal-level referencing where board area is critical |
Compared with 1N5352B and MMBZ5245BS-7-F, the 1N5352CE3/TR13 uniquely combines ±2% tolerance, 5 W power handling, and axial T-18 packaging-making it the sole option for high-accuracy, high-energy shunt regulation in through-hole industrial power designs.
Availability
1N5352CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage protection circuits, and programmable logic controller reference designs requiring stable component supply and long-term obsolescence management.
Supply support for 1N5352CE3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was engineered for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and extended temperature operation without derating.
FAQ
What is the Zener voltage tolerance of the 1N5352CE3/TR13?
The 1N5352CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its actual breakdown voltage falls within 14.7 V to 15.3 V at 75 mA test current and 25°C lead temperature. This tighter tolerance supports precision regulation tasks where ±5% variants like the 1N5352B would introduce unacceptable error margins in feedback paths or reference circuits.
Can the 1N5352CE3/TR13 be used in surface-mount designs?
No, the 1N5352CE3/TR13 uses a T-18 axial-leaded package and is designed exclusively for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5352B (DO-214AA) and SMBG5352B (DO-214AB) variants, but these differ in thermal performance, surge rating, and footprint. The 1N5352CE3/TR13 itself requires axial insertion and lead forming for PCB assembly.
What is the maximum steady-state power dissipation of the 1N5352CE3/TR13 on a standard FR4 board?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5352CE3/TR13 has a steady-state power dissipation limit of 1.47 W at 25°C ambient temperature. This is derived from its 85°C/W junction-to-ambient thermal resistance. Exceeding this requires either enhanced copper area, heatsinking, or derating per Figure 1 in the datasheet.
Does the 1N5352CE3/TR13 meet RoHS requirements?
Yes, the "e3" suffix in 1N5352CE3/TR13 explicitly indicates RoHS compliance per EU Directive 2011/65/EU. Its leads are plated with annealed matte tin (no lead or cadmium), and its void-free epoxy body meets UL94V-0 flammability standards. This makes the 1N5352CE3/TR13 suitable for export to EU, China, and other RoHS-regulated markets without additional compliance documentation.
How does the voltage regulation (ΔVZ) specification impact circuit performance for the 1N5352CE3/TR13?
The 1N5352CE3/TR13 specifies ΔVZ = 0.25 V-the difference between its Zener voltage measured at 10% (7.5 mA) and 50% (37.5 mA) of maximum Zener current. This low value confirms minimal voltage shift across its usable current range, directly improving regulation stability in variable-load applications such as unregulated DC-DC converter outputs or sensor excitation rails where current draw fluctuates significantly.
1N5352CE3/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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.8 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
1N5352CE3/TR13 FAQ
1.How can I place an order for 1N5352CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5352CE3/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 1N5352CE3/TR13 reliable?
The price and inventory of 1N5352CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5352CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5352CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5352CE3/TR13 transactions.
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4.How is shipping managed for 1N5352CE3/TR13?
1N5352CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5352CE3/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 1N5352CE3/TR13?
For technical support, including 1N5352CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5352CE3/TR13 requirements.
6.How does Aetrix verify that 1N5352CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5352CE3/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 1N5352CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5352CE3/TR13?
All 1N5352CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5352CE3/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 1N5352CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5352CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5352CE3/TR13 Tags
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