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Microchip Technology 1N5356E3/TR13
- Part No.:
- 1N5356E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5356E3/TR13.pdf
- Description:
- DIODE ZENER 19V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,226
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Product details
Overview
1N5356E3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 19 V ±5%, maximum dynamic impedance of 3.0 Ω at 65 mA test current, and maximum reverse leakage of 0.5 μA at 14.4 V. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5356E3/TR13 datasheet, 1N5356E3/TR13 pinout, 1N5356E3/TR13 application, or 1N5356E3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), voltage regulation (ΔVZ = 0.40 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-biased mode, where the cathode band denotes the positive terminal relative to the anode. Its low dynamic impedance (3.0 Ω) ensures stable regulation across 10–50% of IZM (65 mA), and its 25 °C/W thermal resistance enables reliable 5 W operation with 3/8″ lead length heat sinking.
The 1N5356E3/TR13 is part of the JEDEC-registered 1N53xxB series with e3 RoHS suffix and TR13 tape-and-reel packaging. It exhibits minimal voltage drift versus temperature (±0.08%/°C typical) and withstands 8.3 ms half-sine surge currents up to 75 A without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19 V ±5% at 65 mA - defines precise clamping threshold for 12–24 V rail protection |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - requires ≥3/8″ lead length for full-rated operation |
| Dynamic Impedance (ZZ) | 3.0 Ω max at IZT = 65 mA - ensures <0.2 V output variation across 10–50% load current |
| Reverse Leakage (IR) | 0.5 μA max at VR = 14.4 V - guarantees low standby power loss in high-impedance bias networks |
| Surge Current (IZSM) | 75 A peak (8.3 ms half-sine) - survives transient overvoltage events per IEC 61000-4-5 |
| Voltage Regulation (ΔVZ) | 0.40 V max - difference between VZ measured at 10% and 50% of IZM, confirming tight regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables direct thermal path to PCB copper or chassis mount |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free UL94V-0 epoxy), cathode indicated by single black band. Leads are annealed matte-tin plated per MIL-STD-750 Method 2026, RoHS compliant (e3 suffix), weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or lower-potential rail; reverse-bias current flows into cathode |
| Cathode (banded end) | Regulated output node | Provides stable 19 V reference when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB registration | Guarantees mechanical and electrical interchangeability across qualified manufacturers |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for SMT reflow compatibility |
| ESD robustness (MIL-STD-750 Method 1020) | Withstands >4 kV HBM without parameter shift-critical for handling in uncontrolled environments |
| Steady-state power @ TA = 25 °C on FR4 | 1.47 W with 4 mm² copper pads - enables board-level thermal design without external heatsink |
| Forward voltage @ 1.0 A | ≤1.2 V - supports use as clamp diode in bidirectional protection circuits |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Voltage |
|---|---|
Use Scenario: Stabilizing 19 V auxiliary rail in programmable logic controller (PLC) power module under variable load and temperature. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining constant voltage across feedback divider of DC-DC controller IC. Use Value: ΔVZ ≤ 0.40 V ensures <±2% output accuracy across –40 °C to +85 °C ambient, meeting IEC 61000-6-2 immunity requirements. |
Use Scenario: Providing stable 19 V reference for analog sensor signal conditioning in engine control unit (ECU) under battery transients. IC Role / Device Role / Timing Role: Precision voltage clamp protecting ADC input and biasing op-amp rails during load-dump events. Use Value: 75 A surge rating absorbs ISO 7637-2 Pulse 5a (load dump) energy without failure, eliminating need for parallel TVS devices. |
| Test Equipment Calibration Reference | Telecom Line Card Overvoltage Protection |
Use Scenario: Serving as traceable 19 V reference in portable multimeter calibration circuitry with minimal self-heating error. IC Role / Device Role / Timing Role: Primary voltage standard in resistive divider network feeding precision DAC and comparator stages. Use Value: ±5% tolerance and 3.0 Ω ZZ limit reference drift to <0.1% over 100–1000 hr aging, supporting metrology-grade stability. |
Use Scenario: Clamping 48 V telecom distribution bus against lightning-induced surges in remote radio head (RRH) line cards. IC Role / Device Role / Timing Role: Primary shunt protector diverting surge current away from downstream DC-DC converters and FET drivers. Use Value: Low RθJL (25 °C/W) enables rapid thermal dissipation of 5 W surge energy, preventing thermal runaway during repeated 10/700 µs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5356B | No e3 RoHS suffix; SnPb plating; same VZ, ZZ, IZM, and package | Not suitable for RoHS-compliant production; requires exemption documentation | Select only for legacy repair or non-RoHS military programs requiring JAN/JANTX screening prefixes |
| MMSZ5247B-TP | Surface-mount SOD-123 package; 19 V ±5%; 500 mW rating; ZZ = 25 Ω at 20 mA | Lower power and higher impedance limit use to low-current bias/reference roles, not 5 W clamping | Choose for space-constrained PCBs where thermal mass is sufficient for <0.5 W continuous dissipation |
Compared with 1N5356B and MMSZ5247B-TP, the 1N5356E3/TR13 uniquely delivers 5 W axial-leaded regulation with RoHS compliance, 3.0 Ω impedance, and 75 A surge capability-making it irreplaceable for high-energy industrial and automotive clamping where leaded thermal performance and regulatory alignment are mandatory.
Availability
1N5356E3/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage, and telecom line card overvoltage protection requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5356E3/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 designed specifically for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge survivability, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5356E3/TR13?
The 1N5356E3/TR13 has a Zener voltage tolerance of ±5%, as indicated by the "B" suffix in its part number. This means its regulated voltage falls within 19 V ±0.95 V (18.05 V to 19.95 V) when tested at 65 mA and 25 °C lead temperature. The e3 suffix confirms RoHS compliance but does not affect voltage tolerance.
Can the 1N5356E3/TR13 be used in surface-mount designs?
No-the 1N5356E3/TR13 is an axial-leaded T-18 package device intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5356B or SMBG5356B in DO-214AA/DO-214AB packages. These share the same 19 V ±5% rating but differ in thermal resistance, surge rating, and footprint.
What is the maximum steady-state power dissipation of the 1N5356E3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper) with 4 mm² copper pads and 1 mm track width, the 1N5356E3/TR13 delivers 1.47 W steady-state power at 25 °C ambient. This derates linearly above 25 °C per the curve in Figure 1 of the datasheet, reaching zero at ~125 °C ambient due to its 85 °C/W junction-to-ambient thermal resistance.
How does the 1N5356E3/TR13 handle surge events?
The 1N5356E3/TR13 is rated for a peak non-recurrent surge current (IZSM) of 75 A for an 8.3 ms half-sine waveform. This capability allows it to absorb energy from IEC 61000-4-5 combination wave surges or ISO 7637-2 load-dump transients without parametric shift or catastrophic failure, provided leads are adequately heat-sunk.
Is the 1N5356E3/TR13 suitable for precision voltage reference applications?
Yes-the 1N5356E3/TR13 supports precision reference use via its low dynamic impedance (3.0 Ω), tight ΔVZ (0.40 V), and stable temperature coefficient (~0.08%/°C). However, for sub-0.1% accuracy over wide temperature ranges, additional compensation or trimming is recommended, as the ±5% initial tolerance applies to absolute VZ at 25 °C.
1N5356E3/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):
- 19 V
- Tolerance:
- ±20%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 13.7 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
1N5356E3/TR13 FAQ
1.How can I place an order for 1N5356E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5356E3/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 1N5356E3/TR13 reliable?
The price and inventory of 1N5356E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5356E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5356E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5356E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5356E3/TR13?
1N5356E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5356E3/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 1N5356E3/TR13?
For technical support, including 1N5356E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5356E3/TR13 requirements.
6.How does Aetrix verify that 1N5356E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5356E3/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 1N5356E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5356E3/TR13?
All 1N5356E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5356E3/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 1N5356E3/TR13 part is unused and in its original packaging.
Return procedure for 1N5356E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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