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Microchip Technology 1N5352E3/TR13
- Part No.:
- 1N5352E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5352E3/TR13.pdf
- Description:
- DIODE ZENER 15V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,147
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Product details
Overview
1N5352E3/TR13 from Microsemi is a 15 V, ±5% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications. 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 1N5352E3/TR13 datasheet, 1N5352E3/TR13 pinout, 1N5352E3/TR13 application, or 1N5352E3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (6.3 A), reverse leakage (<1.0 µA at 10.8 V), and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage reference where the cathode (banded end) is held positive relative to the anode. Regulation occurs via controlled reverse breakdown, with voltage stability maintained over 10–50% of IZM and across wide temperature extremes.
Its low 25 °C/W thermal resistance enables stable 5 W operation when leads are mounted ≥10 mm from body; on FR4 PCBs with defined copper pads, derated power drops to 1.47 W. The e3 suffix confirms RoHS compliance, and TR13 denotes EIA-296 tape-and-reel packaging (1,000 pcs/reel).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±5% at 75 mA test current - defines nominal regulation point with tight tolerance for stable reference generation. |
| Power Dissipation | 5.0 W at 25°C lead temperature - supports high-current regulation when adequately heat-sunk. |
| Dynamic Impedance (ZZ) | 2.5 Ω max at 75 mA - ensures minimal output voltage shift under load transients. |
| Reverse Leakage (IR) | <1.0 µA at 10.8 V - guarantees low standby power loss in high-impedance bias networks. |
| Surge Current (IZSM) | 6.3 A peak (8.3 ms half-sine) - withstands transient overvoltage events without degradation. |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length) - enables predictable thermal design in chassis-mounted or through-hole layouts. |
| Operating Temperature | –65°C to +150°C - suitable for industrial, automotive under-hood, and aerospace environments. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free UL94V-0 epoxy), 0.7 g weight, cathode indicated by color band. Leads are annealed matte-tin plated per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential side of circuit; reverse-biased during regulation. |
| Anode (unbanded end) | Reference return path | Typically tied to system ground or lower-voltage rail; completes Zener conduction loop. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N53xxB series | Industry-standard footprint and electrical behavior enabling drop-in replacement across multiple suppliers. |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling in standard manufacturing environments without special ESD controls. |
| RoHS-compliant (e3 suffix) | Lead-free matte-tin plating meets global environmental compliance requirements. |
| Tape-and-reel packaging (TR13) | EIA-296 compliant format supporting automated SMT placement despite axial form factor. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converters using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Precision voltage reference for TL431-like error amplifier input or direct shunt regulation. Use Value: Maintains ±5% output accuracy over line/load/temperature with 2.5 Ω dynamic impedance minimizing feedback loop perturbation. | Use Scenario: Clamps transient surges on 12–24 V DC rails caused by inductive switching or load dump. IC Role / Device Role / Timing Role: Two-terminal crowbar element absorbing energy above 15 V threshold. Use Value: Withstands 6.3 A surge (8.3 ms) without failure while holding clamped voltage within 0.25 V of nominal. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Provides stable excitation for resistive bridge sensors (e.g., strain gauges, RTDs) in data acquisition systems. IC Role / Device Role / Timing Role: Low-drift, low-noise analog reference source replacing higher-cost IC references. Use Value: Delivers 15 V ±5% with <1 µA leakage at 10.8 V, minimizing self-heating and measurement offset errors. | Use Scenario: Supplies regulated bias to 4–20 mA transmitter front-ends operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary voltage stabilization element in analog signal conditioning stages. Use Value: Operates reliably from –65°C to +150°C and maintains regulation with minimal ΔVZ (0.25 V) across 10–50% IZM range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | No e3 RoHS suffix; SnPb lead finish; same VZ, IZM, ZZ, and package. | Not suitable for RoHS-compliant production; requires Pb-containing solder process. | Select when legacy Pb-based assembly is mandated or cost sensitivity outweighs environmental compliance. |
| MMSZ5245B-TP | Surface-mount SOD-123 package; 15 V ±5%; 500 mW rating; 17 Ω ZZ; 100 nA IR. | Limited to low-power applications; unsuitable for 5 W continuous dissipation or surge handling. | Choose only for space-constrained PCBs where power demand is ≤0.5 W and surge immunity is noncritical. |
Compared with 1N5352B and MMSZ5245B-TP, the 1N5352E3/TR13 uniquely combines full 5 W power capability, axial-leaded mechanical robustness, RoHS compliance, and industry-standard JEDEC registration-making it optimal for high-reliability, medium-power regulation where thermal management and regulatory compliance are both essential.
Availability
1N5352E3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and programmable voltage reference designs requiring stable component supply and long-term manufacturability.
Supply support for 1N5352E3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB series was engineered for ruggedized voltage regulation in mission-critical power systems, emphasizing thermal resilience, surge survivability, and long-term parametric stability under extreme environmental stress.
FAQ
What is the Zener voltage tolerance of the 1N5352E3/TR13?
The 1N5352E3/TR13 has a Zener voltage tolerance of ±5%, confirmed by its "B" suffix per Microsemi's documentation. This means its measured VZ falls between 14.25 V and 15.75 V at 75 mA test current and 25°C lead temperature. The e3 suffix indicates RoHS compliance but does not affect voltage tolerance.
Can the 1N5352E3/TR13 be used in surface-mount designs?
The 1N5352E3/TR13 is an axial-leaded T-18 package and is not a surface-mount device. While it ships in TR13 tape-and-reel format compatible with some automated feeders, physical mounting requires through-hole PCB holes and wave or selective soldering. For true SMT implementation, consider SMBJ5352B or MMSZ5245B-TP instead.
What is the maximum steady-state power dissipation of the 1N5352E3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz Cu) with 4 mm² copper pads and 1 mm × 25 mm traces, the 1N5352E3/TR13 is rated for 1.47 W steady-state power at 25°C ambient, per Microsemi's thermal resistance specification of 85°C/W junction-to-ambient. Full 5 W operation requires lead temperature control at ≤25°C via chassis mounting or extended leads.
Does the 1N5352E3/TR13 meet moisture sensitivity requirements without dry packing?
Yes-the 1N5352E3/TR13 carries IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 classification, meaning it may be stored indefinitely at ≤30°C/60% RH without dry pack or baking. This eliminates pre-assembly moisture mitigation steps and reduces handling complexity in manufacturing.
How does the 1N5352E3/TR13 handle transient overvoltage events?
The 1N5352E3/TR13 is rated for a peak surge current (IZSM) of 6.3 A for an 8.3 ms non-repetitive half-sine waveform. Its low dynamic impedance (2.5 Ω) and robust thermal design allow it to clamp transients effectively while maintaining regulation within 0.25 V (ΔVZ) across its operating current range.
1N5352E3/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:
- ±20%
- 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
1N5352E3/TR13 FAQ
1.How can I place an order for 1N5352E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5352E3/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 1N5352E3/TR13 reliable?
The price and inventory of 1N5352E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5352E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5352E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5352E3/TR13 transactions.
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4.How is shipping managed for 1N5352E3/TR13?
1N5352E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5352E3/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 1N5352E3/TR13?
For technical support, including 1N5352E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5352E3/TR13 requirements.
6.How does Aetrix verify that 1N5352E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5352E3/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 1N5352E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5352E3/TR13?
All 1N5352E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5352E3/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 1N5352E3/TR13 part is unused and in its original packaging.
Return procedure for 1N5352E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5352E3/TR13 Tags
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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MM5Z5V1ST1G
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