Microchip Technology 1N5353E3/TR13
- Part No.:
- 1N5353E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353E3/TR13.pdf
- Description:
- DIODE ZENER 16V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:2,271
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Product details
Overview
1N5353E3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 16 V, ±5% tolerance (B-suffix equivalent), 75 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 6.0 V maximum voltage regulation (ΔVZ) across 10–50% of IZM. 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 1N5353E3/TR13 datasheet, 1N5353E3/TR13 pinout, 1N5353E3/TR13 application, or 1N5353E3/TR13 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), RoHS compliance (e3 suffix), and tape-and-reel packaging (TR13).
Technical Context
This device functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across a wide operating current range (1.0 mA to 75 mA). Its low dynamic impedance (2.5 Ω) and tight voltage regulation (ΔVZ = 6.0 V) ensure minimal deviation under load transients.
The 1N5353E3/TR13 uses a void-free thermosetting epoxy T-18 package with tin-lead or RoHS-compliant matte-tin plating, rated for 260 °C soldering (10 s), and features cathode polarity indicated by a band. It meets MIL-STD-750 Method 1020 for ESD insensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±5% - stable regulation point at 75 mA test current; supports 15.2–16.8 V tolerance window in production. |
| Power Dissipation | 5.0 W at TL = 25 °C (3/8″ lead length) - requires heat sinking above ambient to sustain full power. |
| Dynamic Impedance (ZZ) | 2.5 Ω max at IZT = 75 mA - ensures low AC voltage variation during current fluctuations. |
| Voltage Regulation (ΔVZ) | 6.0 V max - difference between VZ measured at 10% and 50% of IZM, defining regulation linearity. |
| Surge Current (IZSM) | 75 A peak (8.3 ms half-sine) - withstands transient overloads without degradation. |
| Thermal Resistance | 25 °C/W junction-to-lead - enables thermal design with predictable temperature rise per watt dissipated. |
| 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: T-18 axial-leaded plastic case (void-free UL94V-0 epoxy), 0.7 g weight, cathode identified by color band. Leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to circuit ground or lower-potential rail when used in shunt regulation. |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to input supply; delivers stable 16 V to load when reverse-biased. |
Key Features
| Feature | Design Value |
|---|---|
| RoHS compliance | e3 suffix confirms lead-free construction meeting EU Directive 2011/65/EU requirements. |
| Tape-and-reel packaging | TR13 suffix indicates EIA-296 standard 13-inch reel format for automated SMT placement compatibility. |
| Moisture sensitivity | IPC/JEDEC J-STD-020B Level 1 - no dry pack required; safe for standard assembly processes. |
| ESD robustness | Nonsensitive per MIL-STD-750 Method 1020 - survives handling without special precautions. |
| High surge capability | 75 A non-recurrent surge (8.3 ms) - protects downstream circuitry during line transients. |
Applications
| DC Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing unregulated 24 V DC rail for analog sensor biasing in industrial control modules. IC Role / Device Role / Timing Role: Shunt voltage regulator providing fixed 16 V reference to op-amp power rails and ADC reference inputs. Use Value: Maintains <±0.5% output variation across 5–70 mA load current due to low ΔVZ and ZZ. |
Use Scenario: Clamping transient spikes on 12 V automotive CAN bus power lines during load dump events. IC Role / Device Role / Timing Role: Crowbar element diverting excess energy to ground before reaching sensitive transceivers. Use Value: Absorbs 75 A surge (8.3 ms) without failure, preserving system-level EMC compliance. |
| Programmable Reference Source | Temperature-Stable Bias Network |
Use Scenario: Generating precise 16 V reference for DAC output scaling in programmable logic controller (PLC) analog outputs. IC Role / Device Role / Timing Role: Primary voltage reference in feedback loop of adjustable linear regulator stage. Use Value: Delivers ±5% initial accuracy and <0.05%/°C TC over –40 to +85 °C, verified per Microsemi characterization. |
Use Scenario: Setting base-emitter bias for high-side NPN transistor in temperature-compensated current source. IC Role / Device Role / Timing Role: Stable voltage node establishing fixed VBE multiplier ratio across operating temperature. Use Value: Low thermal resistance (25 °C/W) minimizes self-heating drift; ΔVZ <6.0 V ensures bias stability under current modulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B | No e3 or TR suffix; tin-lead leads, bulk packaging; same electrical specs and T-18 package. | Lacks RoHS compliance and automated placement support; suitable only for legacy through-hole assembly. | Select 1N5353B only if leaded solder process and manual insertion are required. |
| MMSZ5245B-TP | Surface-mount SOD-123 package; 16 V ±5%, 500 mW rating; higher ZZ (15 Ω), lower IZM (62.5 mA). | Not drop-in replaceable; limited power handling; suited for low-current portable electronics, not 5 W systems. | Choose MMSZ5245B-TP only for space-constrained PCBs where <1 W dissipation suffices. |
Compared with 1N5353B and MMSZ5245B-TP, the 1N5353E3/TR13 uniquely combines full 5 W power capability, RoHS compliance, tape-and-reel automation readiness, and axial-leaded mechanical robustness-making it optimal for industrial power supply and protection designs requiring reliability and manufacturability.
Availability
1N5353E3/TR13 is available at Aetrix Electronics and suitable for DC power supply regulation, overvoltage protection circuits, and programmable reference sources requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for 1N5353E3/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 discrete components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized 5 W Zener regulation in harsh-environment power systems, emphasizing thermal performance, surge resilience, and extended temperature operation (–65 °C to +150 °C).
FAQ
What is the Zener voltage tolerance of the 1N5353E3/TR13?
The 1N5353E3/TR13 has a ±5% Zener voltage tolerance, confirmed by its "B"-equivalent specification in Microsemi's 1N5333B–1N5388B family documentation. This yields a guaranteed regulation range of 15.2 V to 16.8 V at 75 mA test current and 25 °C lead temperature, directly traceable to JEDEC-registered electrical characteristics tables.
Does the 1N5353E3/TR13 support automated assembly?
Yes-the "TR13" suffix denotes EIA-296-compliant tape-and-reel packaging on a 13-inch reel, enabling compatibility with standard pick-and-place equipment. The axial T-18 package is designed for through-hole auto-insertion, and the RoHS-compliant matte-tin plating ensures reliable solder wetting per MIL-STD-750 Method 2026.
What is the maximum steady-state power dissipation for the 1N5353E3/TR13 on a PCB?
When mounted on an FR4 board with 1 oz copper, 4 mm² pads, and 1 mm × 25 mm traces, the 1N5353E3/TR13 is rated for 1.47 W at 25 °C ambient, per Microsemi's thermal resistance specification of 85 °C/W junction-to-ambient. Derating is required above 25 °C ambient per Figure 1 in the official datasheet.
How does the 1N5353E3/TR13 handle surge conditions?
The 1N5353E3/TR13 is rated for 75 A peak non-recurrent surge current (8.3 ms half-sine waveform), verified per Microsemi's test methodology in Note 5. This enables reliable clamping of load-dump transients in automotive and industrial power systems without parametric shift or catastrophic failure.
Is the 1N5353E3/TR13 suitable for high-temperature environments?
Yes-the 1N5353E3/TR13 is specified for continuous operation from –65 °C to +150 °C, with thermal resistance data validated at elevated temperatures. Its UL94V-0 epoxy body and annealed tin plating maintain mechanical and solderability integrity across this full range, making it appropriate for under-hood automotive and downhole industrial applications.
1N5353E3/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):
- 16 V
- Tolerance:
- ±20%
- 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
1N5353E3/TR13 FAQ
1.How can I place an order for 1N5353E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353E3/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 1N5353E3/TR13 reliable?
The price and inventory of 1N5353E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353E3/TR13 is usually 5 days.
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Once your 1N5353E3/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 1N5353E3/TR13?
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6.How does Aetrix verify that 1N5353E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5353E3/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 1N5353E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5353E3/TR13?
All 1N5353E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353E3/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 1N5353E3/TR13 part is unused and in its original packaging.
Return procedure for 1N5353E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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