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Microchip Technology 1N5353AE3/TR8
- Part No.:
- 1N5353AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353AE3/TR8.pdf
- Description:
- DIODE ZENER 16V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:6,886
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Product details
Overview
1N5353AE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 16 V, ±10% tolerance (A suffix), 75 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 75 mA maximum Zener current (IZM) at 25 °C lead temperature. It operates from −65 °C to +150 °C and is used for voltage reference and overvoltage protection in DC power supplies.
For engineers reviewing the 1N5353AE3/TR8 datasheet, 1N5353AE3/TR8 pinout, 1N5353AE3/TR8 application, or 1N5353AE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (6.0 A), voltage regulation (ΔVZ = 0.30 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
The 1N5353AE3/TR8 functions as a two-terminal voltage regulator diode operating in reverse breakdown, maintaining stable 16 V output across a wide current range (1.0 mA to 75 mA). Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation under load changes, and its 25 °C/W thermal resistance enables reliable 5 W dissipation with proper lead-length heat sinking.
Designed for axial-lead through-hole mounting on FR4 PCBs, it features cathode band polarity marking, UL94V-0 epoxy encapsulation, and moisture sensitivity level 1-no dry pack required. The e3/TR8 suffix confirms RoHS compliance and tape-and-reel packaging per EIA-296.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±10% - defines nominal regulation point; high-end tolerance limit is 17.6 V for IZM calculation. |
| Test Current (IZT) | 75 mA - current at which VZ is measured; establishes baseline operating point for regulation accuracy. |
| Dynamic Impedance (ZZ) | 2.5 Ω max - low AC impedance ensures <0.30 V regulation shift between 10% and 50% of IZM. |
| Max Zener Current (IZM) | 75 mA - maximum continuous DC current at TL = 25 °C with 3/8″ lead length; derates linearly above 25 °C. |
| Surge Current (IZSM) | 6.0 A - peak non-repetitive 8.3 ms half-sine rating; supports transient overvoltage clamping. |
| Thermal Resistance | 25 °C/W junction-to-lead - enables full 5 W dissipation with minimal lead-length heatsinking. |
| Reverse Leakage (IR) | 1.0 μA max at VR = 11.5 V - ensures low standby power loss in high-impedance bias networks. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free thermosetting epoxy, UL94V-0), cathode indicated by color band. Leads are annealed matte-tin plated (RoHS compliant), solderable per MIL-STD-750 Method 2026. Weight: 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to circuit ground or lower potential; forward voltage ≤1.2 V @ 1.0 A. |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; operated positive relative to anode; delivers regulated 16 V when reverse-biased above knee. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Guarantees standardized electrical behavior and mechanical interchangeability across manufacturers. |
| ±10% voltage tolerance (A suffix) | Cost-optimized regulation accuracy suitable for non-critical reference and clamp applications. |
| RoHS-compliant e3 marking | Meets global environmental directives without performance trade-offs; matte-tin plating ensures solderability. |
| Level 1 moisture sensitivity | No dry-pack or baking required before assembly-reduces handling cost and process complexity. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly and testing. |
Applications
| DC Power Supply Regulation | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing unregulated 18–24 V DC input to deliver consistent 16 V rail for analog sensor biasing. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing passive regulation via current-limiting resistor. Use Value: Maintains ±0.30 V regulation across 7.5–37.5 mA load current swing without active feedback. |
Use Scenario: Protecting 16 V-rated microcontroller I/O pins against 24 V transients on shared bus lines. IC Role / Device Role / Timing Role: Fast-acting crowbar element that conducts above 17.6 V to divert surge energy. Use Value: Withstands 6.0 A non-repetitive surges (8.3 ms) while limiting clamped voltage to ≤17.6 V. |
| Industrial Sensor Excitation | Programmable Reference Divider |
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage source referenced to system ground, tolerant of ambient temperature shifts (−65 °C to +150 °C). Use Value: Delivers <0.30 V drift over full operating current range, enabling <0.1% measurement accuracy. |
Use Scenario: Generating adjustable reference voltages using series/parallel combinations with precision resistors. IC Role / Device Role / Timing Role: Fixed-voltage node in resistor-divider networks where tight tolerance is secondary to stability and surge robustness. Use Value: Low ZZ (2.5 Ω) minimizes loading error when driving high-impedance op-amp inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B | Same 16 V nominal VZ, but ±5% tolerance (B suffix) and higher IZM (75 mA vs. same value, but derived from tighter VZ tolerance). | Preferred where tighter regulation stability is required; slightly higher cost due to tighter binning. | Select 1N5353B when ΔVZ budget is <0.25 V or when operating near VZ upper limit. |
| 1N5353CE3/TR8 | Same 16 V nominal VZ, ±2% tolerance (C suffix), RoHS-compliant e3/TR8 packaging. | Suitable for precision references requiring <0.32 V total tolerance spread (15.68–16.32 V). | Choose 1N5353CE3/TR8 when reference accuracy outweighs cost sensitivity and surge margin remains sufficient. |
Compared with 1N5353AE3/TR8, the 1N5353B offers tighter voltage control at identical power rating, while the 1N5353CE3/TR8 provides enhanced precision for metrology-grade references-both retain identical package, thermal performance, and surge capability.
Availability
1N5353AE3/TR8 is available at Aetrix Electronics and suitable for DC power supply regulation, overvoltage protection clamping, and industrial sensor excitation requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5353AE3/TR8 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 discrete components for aerospace, defense, and industrial markets.
The 1N53xx series was designed for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5353AE3/TR8?
The 1N5353AE3/TR8 has a nominal Zener voltage of 16 V with ±10% tolerance, as indicated by the "A" suffix per Microsemi's documentation. This means the actual measured VZ falls between 14.4 V and 17.6 V at 75 mA test current and 25 °C lead temperature. The tolerance directly impacts regulation accuracy in reference circuits and must be accounted for in worst-case design margins.
How much power can the 1N5353AE3/TR8 dissipate continuously?
The 1N5353AE3/TR8 is rated for 5.0 W continuous power dissipation at TL = 25 °C with 3/8″ (10 mm) lead length from the body. Its thermal resistance is 25 °C/W junction-to-lead, so power must be derated linearly above 25 °C-e.g., 3.75 W at TL = 50 °C. On FR4 PCBs with standard copper pads, steady-state power drops to 1.47 W at TA = 25 °C.
What does the "e3/TR8" suffix mean on the 1N5353AE3/TR8?
The "e3" suffix on 1N5353AE3/TR8 certifies RoHS compliance with lead-free matte-tin plating per MIL-STD-750 Method 2026. The "TR8" indicates tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and component orientation optimized for automated pick-and-place assembly.
Can the 1N5353AE3/TR8 replace the 1N5353B in existing designs?
The 1N5353AE3/TR8 can functionally replace the 1N5353B in most applications, but its ±10% tolerance (vs. ±5% for the B version) results in wider VZ spread (14.4–17.6 V vs. 15.2–16.8 V). Designers should verify that downstream circuitry tolerates the broader regulation window and confirm thermal layout supports identical 5 W dissipation.
What is the maximum surge current rating for the 1N5353AE3/TR8?
The 1N5353AE3/TR8 has a maximum non-repetitive surge current (IZSM) of 6.0 A for an 8.3 ms half-sine waveform, as specified in Microsemi's datasheet. This rating enables effective transient suppression in power rails and interface lines, provided the surge event is infrequent and energy-limited per the device's SOA curve.
1N5353AE3/TR8 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):
- 16 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 11.5 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
1N5353AE3/TR8 FAQ
1.How can I place an order for 1N5353AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353AE3/TR8 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 1N5353AE3/TR8 reliable?
The price and inventory of 1N5353AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353AE3/TR8 is usually 5 days.
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1N5353AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353AE3/TR8 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 1N5353AE3/TR8?
For technical support, including 1N5353AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353AE3/TR8 requirements.
6.How does Aetrix verify that 1N5353AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5353AE3/TR8 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 1N5353AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5353AE3/TR8?
All 1N5353AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353AE3/TR8, 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 1N5353AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5353AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5353AE3/TR8 Tags
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