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Microchip Technology 1N5353CE3/TR8
- Part No.:
- 1N5353CE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353CE3/TR8.pdf
- Description:
- DIODE ZENER 16V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,781
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Product details
Overview
1N5353CE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 16 V, ±2% tolerance (C suffix), 75 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 6.0 V maximum voltage regulation (ΔVZ) - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5353CE3/TR8 datasheet, 1N5353CE3/TR8 pinout, 1N5353CE3/TR8 application, or 1N5353CE3/TR8 equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant plating details, tape-and-reel packaging (TR8), and direct alternatives for stable 16 V regulation under variable load and temperature conditions.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias connection where the banded end is positive relative to the anode. It maintains regulation across 10–50% of IZM (75 mA), with ΔVZ measured between those points.
Thermal performance is defined by junction-to-lead resistance of 25 °C/W at 3/8″ lead length, enabling 5.0 W dissipation at TL < 25 °C; on FR4 PCB (1 oz Cu, 4 mm² pad), steady-state power drops to 1.47 W at TA = 25 °C due to 85 °C/W junction-to-ambient resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±2% - tight tolerance enables stable reference in feedback networks without post-calibration. |
| Test Current (IZT) | 75 mA - operating point where VZ and ZZ are specified; design must ensure minimum bias current ≥10% IZM for regulation. |
| Dynamic Impedance (ZZ) | 2.5 Ω max - low impedance minimizes output voltage variation under changing load current. |
| Max Regulator Current (IZM) | 6.0 A - peak DC current capability when adequately heat-sunk; determines maximum power delivery before thermal runaway. |
| Voltage Regulation (ΔVZ) | 0.30 V max - difference between VZ at 10% and 50% of IZM; quantifies line regulation performance across operating range. |
| Reverse Leakage (IR) | 1.0 μA max at VR = 11.5 V - ensures minimal quiescent current in standby mode of voltage-monitoring circuits. |
| Surge Current (IZSM) | 75 A - non-repetitive 8.3 ms half-sine surge rating; supports transient overvoltage clamping in input protection stages. |
Pinout & Package
Package: Axial-leaded T-18 plastic case per JEDEC DO-201AD; void-free UL94V-0 epoxy body; matte-tin RoHS-compliant plating; cathode indicated by band; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink terminal in reverse-bias operation | Connected to lower-potential node (e.g., ground or return path); defines reference point for regulated output. |
| Cathode (banded end) | Regulated voltage output terminal | Delivers stable 16 V when reverse-biased; must be connected to higher-potential node (e.g., supply rail or error amplifier input). |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables single-supply 16 V reference accuracy without trimming resistors in industrial sensor interfaces. |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU; tin-plated leads compatible with Pb-free reflow and wave soldering at 260 °C for 10 s. |
| Level 1 moisture sensitivity | No dry-pack required; safe for standard SMT assembly without baking prior to use. |
| Low thermal resistance (25 °C/W) | Supports full 5 W dissipation with simple lead-length heat sinking-no heatsink needed for ≤1 W continuous operation. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model ESD events up to ±4 kV without parameter shift-reduces need for external protection in field-deployed equipment. |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp for 15 V Rail |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or forward converter feedback loop using TL431 auxiliary reference. IC Role / Device Role / Timing Role: Provides precise 16 V reference to optocoupler LED anode, setting primary-side regulation threshold. Use Value: ±2% tolerance ensures ±0.32 V absolute reference error, maintaining ±1% output regulation across line/load/temperature. |
Use Scenario: Protecting 15 V logic supply from transient surges exceeding 16.5 V during hot-swap or inductive kick events. IC Role / Device Role / Timing Role: Acts as shunt clamp, diverting excess current when rail exceeds 16 V + ΔVZ (≤16.3 V). Use Value: 75 A surge rating absorbs 8.3 ms transients without degradation; low ZZ limits clamping overshoot to <0.3 V. |
| Industrial Sensor Excitation Reference | Programmable Threshold Detector |
Use Scenario: Supplying excitation voltage to 4–20 mA current-loop pressure sensors requiring stable 16 V bias. IC Role / Device Role / Timing Role: Serves as low-drift, low-noise voltage source for bridge sensor biasing in analog front-end circuits. Use Value: 2.5 Ω ZZ and 0.30 V ΔVZ ensure <2 mV variation across 1–10 mA load changes-critical for 12-bit ADC resolution. |
Use Scenario: Setting trip point for comparator-based undervoltage lockout (UVLO) or brownout detection at 16 V. IC Role / Device Role / Timing Role: Delivers accurate threshold voltage to comparator inverter input; hysteresis added externally. Use Value: ±2% tolerance guarantees trip window of 15.68–16.32 V-tight enough to avoid nuisance tripping while ensuring system safety margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B | Same 16 V nominal VZ, but ±5% tolerance (B suffix) and no RoHS e3 marking; identical package and thermal specs. | Acceptable where tighter tolerance not required; not compliant with RoHS Directive 2011/65/EU. | Select 1N5353B only for legacy designs or non-RoHS environments; verify compliance requirements before substitution. |
| SMBJ5353CE3 | Surface-mount SMB package; same 16 V ±2%, 5 W rating, and e3 RoHS marking; 216 Ω junction-to-ambient vs. 85 Ω for axial version on FR4. | Used where board space is constrained and automated placement required; requires thermal pad design for full power handling. | Choose SMBJ5353CE3 for high-density layouts; confirm PCB copper area meets 1.47 W derating limit if no thermal pad. |
Compared with 1N5353B and SMBJ5353CE3, the 1N5353CE3/TR8 uniquely combines RoHS compliance, ±2% tolerance, axial-leaded ease of prototyping and repair, and proven reliability in through-hole power supply feedback paths-making it optimal for industrial OEMs prioritizing long-term supply stability and manual assembly compatibility.
Availability
1N5353CE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning circuits, and overvoltage protection systems requiring stable component supply with consistent parametric performance and RoHS compliance.
Supply support for 1N5353CE3/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 timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed for ruggedized voltage regulation in harsh-environment power systems-emphasizing wide temperature range (-65 °C to +150 °C), surge resilience, and MIL-qualified screening options.
FAQ
What is the Zener voltage tolerance of the 1N5353CE3/TR8?
The 1N5353CE3/TR8 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its actual regulation voltage falls within 15.68 V to 16.32 V at 25 °C when tested at 75 mA. The tighter tolerance supports precision reference applications where calibration overhead must be minimized.
Does the 1N5353CE3/TR8 require dry packing before use?
No, the 1N5353CE3/TR8 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not hygroscopic and does not require dry packing or baking prior to soldering. This simplifies manufacturing logistics and eliminates moisture-related popcorning risks during reflow.
What is the maximum continuous power dissipation for the 1N5353CE3/TR8 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pad, 1 mm track width, 25 mm length), the 1N5353CE3/TR8 has a junction-to-ambient thermal resistance of 85 °C/W and a steady-state power rating of 1.47 W at TA = 25 °C. Derating begins above 25 °C ambient per Figure 1 in the datasheet.
Can the 1N5353CE3/TR8 be used as a replacement for the 1N5353B?
Yes, the 1N5353CE3/TR8 is functionally compatible with the 1N5353B for 16 V regulation, but differs in tolerance (±2% vs. ±5%) and RoHS compliance (e3 suffix). No PCB layout change is needed, but verify that the tighter tolerance and lead-free plating meet your system's compliance and performance requirements.
What does the "TR8" suffix indicate in 1N5353CE3/TR8?
The "TR8" suffix indicates tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and 1,000 units per reel. This format supports automated pick-and-place assembly and is distinct from bulk or ammo-pack options-ensuring consistent feeding and traceability in high-volume production.
1N5353CE3/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:
- ±2%
- 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
1N5353CE3/TR8 FAQ
1.How can I place an order for 1N5353CE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353CE3/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 1N5353CE3/TR8 reliable?
The price and inventory of 1N5353CE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353CE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5353CE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5353CE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5353CE3/TR8?
1N5353CE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353CE3/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 1N5353CE3/TR8?
For technical support, including 1N5353CE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353CE3/TR8 requirements.
6.How does Aetrix verify that 1N5353CE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5353CE3/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 1N5353CE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5353CE3/TR8?
All 1N5353CE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353CE3/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 1N5353CE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5353CE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5353CE3/TR8 Tags
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