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Microchip Technology 1N5342CE3/TR13
- Part No.:
- 1N5342CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5342CE3/TR13.pdf
- Description:
- DIODE ZENER 6.8V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,441
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Product details
Overview
1N5342CE3/TR13 from Microsemi is a 5.0 W axial-leaded silicon Zener diode with a nominal regulation voltage of 6.8 V ±1% (C suffix), 175 mA test current (IZT), 1.0 Ω maximum dynamic impedance (ZZ), and 700 mA maximum Zener current (IZM) when adequately heat-sunk. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5342CE3/TR13 datasheet, 1N5342CE3/TR13 pinout, 1N5342CE3/TR13 application, or 1N5342CE3/TR13 equivalent, key selection criteria include tight ±1% voltage tolerance, low 1.0 Ω dynamic impedance at 175 mA, high 700 mA IZM capability, RoHS-compliant matte-tin plating, and T-18 axial package compatibility with through-hole PCB assembly.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse-biased breakdown mode. Its 6.8 V nominal Zener voltage is specified at 25 °C with ±1% tolerance (C suffix), measured at 175 mA DC test current (IZT) with 40 ±10 ms stabilization delay.
Thermal design relies on junction-to-lead thermal resistance of 25 °C/W at 10 mm lead length, enabling 5.0 W steady-state dissipation at TL < 25 °C. Voltage regulation (ΔVZ) is 0.15 V - defined as the difference between voltages measured at 10% and 50% of IZM - confirming stable regulation across its operating current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V ±1% at 175 mA, ensuring precise reference stability for feedback networks |
| Power Dissipation | 5.0 W at TL < 25 °C (3/8″ lead length), supporting robust overvoltage clamping |
| Dynamic Impedance (ZZ) | 1.0 Ω max at 175 mA, minimizing output voltage variation under load transients |
| Max Zener Current (IZM) | 700 mA, enabling high-energy transient suppression when heat-sunk |
| Reverse Leakage (IR) | 10 µA max at 5.2 V VR, ensuring low quiescent current in standby operation |
| Surge Current (IZSM) | 200 A peak (8.3 ms half-sine), providing immunity to short-duration line surges |
| Operating Temperature | –65 °C to +150 °C, suitable for industrial and automotive under-hood environments |
Pinout & Package
Package: T-18 axial-leaded plastic case per JEDEC DO-204AL; cathode indicated by band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to system ground or lower-potential rail; defines polarity for reverse-bias operation |
| Cathode | Zener breakdown terminal / Regulated output node | Banded end; connected to regulated voltage point; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±1% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming in analog power supplies |
| Low 1.0 Ω dynamic impedance | Reduces output voltage deviation during rapid load changes in feedback control paths |
| 200 A surge current rating (8.3 ms) | Withstands common-mode lightning-induced transients on DC rails without degradation |
| Moisture sensitivity Level 1 (J-STD-020B) | Eliminates dry-pack requirement and floor-life constraints for SMT reflow-compatible handling |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU and China RoHS II with annealed matte-tin plating |
Applications
| Switching Power Supply Feedback | Industrial Sensor Excitation |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference defining regulation setpoint for PWM controller error amplifier. Use Value: ±1% VZ tolerance and 1.0 Ω ZZ ensure ≤15 mV output deviation across 10–100% load steps. |
Use Scenario: Providing stable excitation voltage to resistive bridge sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-drift, low-noise bias source replacing higher-cost IC references in cost-sensitive analog front-ends. Use Value: 0.15 V ΔVZ and –65 °C to +150 °C operation maintain sensor accuracy across wide ambient ranges. |
| Overvoltage Protection Clamp | Programmable Threshold Detector |
Use Scenario: Clamping 12 V rail against ESD and load-dump events in automotive body electronics. IC Role / Device Role / Timing Role: Fast-response shunt protector diverting surge energy before downstream ICs reach breakdown. Use Value: 200 A IZSM rating and 25 °C/W θJL enable reliable single-event clamping without thermal runaway. |
Use Scenario: Setting trip threshold for comparator-based battery undervoltage lockout in portable medical devices. IC Role / Device Role / Timing Role: Stable, temperature-compensated reference input to LM393-type comparators. Use Value: Tight 6.8 V ±1% tolerance eliminates calibration during production, reducing test time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5342B | ±5% tolerance (B suffix), same 6.8 V nominal, 175 mA IZT, 1.0 Ω ZZ, but higher ΔVZ (0.15 V vs. 0.15 V - identical), no e3 RoHS marking | Acceptable where ±5% regulation suffices and RoHS compliance is not required | Select 1N5342B only if cost sensitivity outweighs precision and environmental compliance needs |
| MMSZ5234ET1G | Surface-mount SOD-123 package, 6.8 V ±5%, 20 mA IZT, 5.0 Ω ZZ, 500 mW power rating - not a drop-in replacement | Limited to low-power signal-level referencing; unsuitable for 5 W clamping or high-IZM applications | Choose MMSZ5234ET1G only for space-constrained PCBs where power dissipation ≤500 mW is guaranteed |
Compared with 1N5342B and MMSZ5234ET1G, the 1N5342CE3/TR13 uniquely delivers ±1% tolerance, 5.0 W power handling, and axial T-18 packaging - making it the sole option for high-precision, high-energy, through-hole Zener regulation where both accuracy and ruggedness are mandatory.
Availability
1N5342CE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, industrial sensor excitation, and overvoltage protection clamp applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5342CE3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for high-power, high-stability voltage regulation in harsh-environment power systems - emphasizing low dynamic impedance, wide temperature operation, and surge resilience over general-purpose use.
FAQ
What is the Zener voltage tolerance of the 1N5342CE3/TR13?
The 1N5342CE3/TR13 has a Zener voltage tolerance of ±1%, designated by the "C" suffix in its part number. This means its actual breakdown voltage falls within 6.732 V to 6.868 V at 25 °C and 175 mA test current. This tight tolerance enables direct use in precision feedback circuits without calibration, distinguishing it from ±5% (B suffix) or ±10% (A suffix) variants of the same 6.8 V nominal family.
Can the 1N5342CE3/TR13 be used in surface-mount designs?
No - the 1N5342CE3/TR13 uses a T-18 axial-leaded package intended for through-hole mounting. It is not compatible with SMT reflow processes. For surface-mount equivalents, Microsemi offers the SMBJ5342B (SMB package) and SMBG5342B (SMBG package), both rated for 5 W but differing in thermal profile and footprint. The "TR13" suffix indicates tape-and-reel packaging for automated through-hole insertion, not SMT compatibility.
What is the maximum surge current rating for the 1N5342CE3/TR13?
The 1N5342CE3/TR13 has a maximum non-recurrent surge current (IZSM) rating of 200 A, specified for an 8.3 ms half-sine waveform. This value reflects its ability to absorb transient energy without failure, provided the average power remains within derated limits. Surge capability is enabled by its low thermal resistance (25 °C/W junction-to-lead) and robust silicon die construction - critical for protecting downstream circuitry from load dump or ESD events.
How does the 1N5342CE3/TR13 achieve low voltage regulation (ΔVZ)?
The 1N5342CE3/TR13 achieves a voltage regulation (ΔVZ) of 0.15 V by maintaining minimal variation between its Zener voltage measured at 10% and 50% of IZM (700 mA). This performance stems from its low 1.0 Ω dynamic impedance (ZZ) at 175 mA IZT and optimized doping profile, ensuring stable regulation across operating currents from ~70 mA to 350 mA - essential for consistent feedback accuracy in variable-load power supplies.
Is the 1N5342CE3/TR13 compliant with RoHS directives?
Yes - the "e3" suffix in 1N5342CE3/TR13 explicitly denotes RoHS compliance per EU Directive 2011/65/EU and China RoHS II. It features annealed matte-tin plating on leads (no lead or cadmium), void-free UL94V-0 epoxy encapsulation, and full documentation per Microsemi's public compliance statements. The e3 marking is laser-etched or molded into the package body and verified in manufacturing lot records.
1N5342CE3/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):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 4.9 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
1N5342CE3/TR13 FAQ
1.How can I place an order for 1N5342CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5342CE3/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 1N5342CE3/TR13 reliable?
The price and inventory of 1N5342CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5342CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5342CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5342CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5342CE3/TR13?
1N5342CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5342CE3/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 1N5342CE3/TR13?
For technical support, including 1N5342CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5342CE3/TR13 requirements.
6.How does Aetrix verify that 1N5342CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5342CE3/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 1N5342CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5342CE3/TR13?
All 1N5342CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5342CE3/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 1N5342CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5342CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5342CE3/TR13 Tags
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MM5Z5V1ST1G
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