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Microchip Technology 1N5368BE3/TR13
- Part No.:
- 1N5368BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5368BE3/TR13.pdf
- Description:
- DIODE ZENER 47V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,698
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Product details
Overview
1N5368BE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 47 V, ±5% tolerance (B suffix), 25 Ω maximum dynamic impedance at 25 mA test current, and 210 mA maximum Zener current when adequately heat-sunk. 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 1N5368BE3/TR13 datasheet, 1N5368BE3/TR13 pinout, 1N5368BE3/TR13 application, or 1N5368BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (210 A), low voltage regulation drift (2.7 V ΔVZ), 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, maintaining stable output across wide current ranges (25 mA IZT to 210 mA IZM) with minimal dynamic impedance. Its T-18 axial package enables through-hole mounting on FR4 PCBs with 4 mm² copper pads, delivering 1.47 W steady-state power at 25 °C ambient.
The 1N5368BE3/TR13 exhibits tight voltage regulation (ΔVZ = 2.7 V between 10% and 50% IZM), low knee impedance (100 Ω at 1 mA), and withstands 8.3 ms half-sine surge currents up to 210 A - critical for transient suppression in DC bus lines and feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±5% - defines regulated output level under 25 mA test current; stable across temperature and load variations. |
| Power Dissipation | 5.0 W at 25 °C lead temperature - requires 3/8″ (10 mm) lead length from body for full rating; derates linearly above 25 °C. |
| Dynamic Impedance (ZZ) | 25 Ω max at IZT = 25 mA - ensures minimal output voltage shift during load transients in feedback networks. |
| Max Reverse Current (IR) | 0.5 μA at VR = 35.8 V - guarantees low leakage in high-impedance biasing and sensing circuits. |
| Surge Current (IZSM) | 210 A peak (8.3 ms half-sine) - provides robust clamping against ESD and line surges without degradation. |
| Voltage Regulation (ΔVZ) | 2.7 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity over operating range. |
| Thermal Resistance | 25 °C/W junction-to-lead - enables predictable thermal design with standard lead-forming and heatsinking practices. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-201AD; void-free UL94V-0 epoxy body; cathode indicated by band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node in Zener regulator configuration | Connected to system ground or lower-potential rail; forms return path for Zener current. |
| Cathode | Regulated output node | Banded end; connected to voltage source input; maintains 47 V relative to anode under reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical dimensions, marking, and reliability testing across global supply chain. |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling, storage, and assembly without baking preconditioning. |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special ESD controls during board assembly. |
| High surge current capability | 210 A peak rating enables use in primary-side transient suppression without external TVS stacking. |
| Stable regulation over temperature | –65 °C to +150 °C operating range supports deployment in automotive engine compartments and industrial motor drives. |
Applications
| Industrial Power Supply Feedback | DC Bus Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference establishing 47 V threshold for error amplifier comparison. Use Value: Maintains ±1% output stability across line/load/temperature with 25 Ω ZZ minimizing loop gain variation. | Use Scenario: Protecting 48 V DC distribution systems from load-dump transients. IC Role / Device Role / Timing Role: Shunt clamp absorbing surge energy before downstream MOSFETs or controllers fail. Use Value: Withstands 210 A 8.3 ms surges without parameter shift, eliminating need for parallel Zener strings. |
| Programmable Voltage Reference | Field-Adjustable Sensor Biasing |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in process instrumentation. IC Role / Device Role / Timing Role: Low-drift 47 V reference source for ratiometric ADC scaling and calibration. Use Value: ΔVZ = 2.7 V ensures <0.1% full-scale error contribution over 10–105 mA operating range. | Use Scenario: Setting adjustable bias points for analog front-end amplifiers in modular test equipment. IC Role / Device Role / Timing Role: Programmable shunt regulator enabling coarse voltage step selection via resistor network. Use Value: ±5% tolerance and 0.5 μA leakage at 35.8 V support accurate multi-range bias generation with minimal quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5368B | No e3 RoHS suffix; tin-lead plating instead of matte-tin; identical electrical specs and package. | Not suitable for RoHS-compliant production; requires leaded solder process compatibility. | Select 1N5368B only for legacy repair or non-RoHS environments where tin-lead assembly is mandated. |
| MMSZ5270B-TP | Surface-mount SOD-123 package; 47 V ±5%; 500 mW rating; 30 Ω ZZ; 100 mA IZM. | Limited to low-power signal-level regulation; cannot replace 1N5368BE3/TR13 in 5 W power applications. | Choose MMSZ5270B-TP only for space-constrained PCBs where thermal mass and power dissipation are secondary to footprint. |
Compared with 1N5368B and MMSZ5270B-TP, the 1N5368BE3/TR13 uniquely combines RoHS compliance, 5 W power handling, axial through-hole mountability, and 210 A surge capability - making it irreplaceable in high-reliability industrial power regulation where both regulatory compliance and ruggedness are mandatory.
Availability
1N5368BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply feedback, DC bus overvoltage clamp, and programmable voltage reference applications requiring stable component supply and long-term lifecycle support.
Supply support for 1N5368BE3/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 immunity, and long-term parametric stability under continuous DC stress.
FAQ
What is the Zener voltage tolerance of the 1N5368BE3/TR13?
The 1N5368BE3/TR13 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its nominal 47 V regulation voltage falls within 44.65 V to 49.35 V at 25 °C lead temperature under 25 mA test current, per Microsemi's REV D datasheet.
Does the 1N5368BE3/TR13 require dry packing before PCB assembly?
No, the 1N5368BE3/TR13 does not require dry packing. It carries Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored and assembled without baking or humidity-controlled packaging - simplifying logistics and reducing manufacturing overhead.
What is the maximum surge current rating for the 1N5368BE3/TR13?
The 1N5368BE3/TR13 is rated for a peak non-recurrent surge current of 210 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating applies under specified thermal conditions and is validated per Microsemi's test methodology in the 1N5333B–1N5388B datasheet.
Can the 1N5368BE3/TR13 be used in surface-mount designs?
No, the 1N5368BE3/TR13 uses a T-18 axial-leaded package and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5368B or SMBG5368B in DO-214AA packages - but these differ in thermal performance, surge rating, and mounting method from the 1N5368BE3/TR13.
What is the forward voltage specification for the 1N5368BE3/TR13?
The forward voltage of the 1N5368BE3/TR13 is specified as a maximum of 1.2 V at 1.0 A forward current. This parameter is relevant for applications where the device may experience brief forward conduction, such as during power-up sequencing or fault conditions.
1N5368BE3/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):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 33.8 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
1N5368BE3/TR13 FAQ
1.How can I place an order for 1N5368BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5368BE3/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 1N5368BE3/TR13 reliable?
The price and inventory of 1N5368BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5368BE3/TR13 is usually 5 days.
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1N5368BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5368BE3/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 1N5368BE3/TR13?
For technical support, including 1N5368BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5368BE3/TR13 requirements.
6.How does Aetrix verify that 1N5368BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5368BE3/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 1N5368BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5368BE3/TR13?
All 1N5368BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5368BE3/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 1N5368BE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5368BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5368BE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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