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Microchip Technology SMBG5366CE3/TR13
- Part No.:
- SMBG5366CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5366CE3/TR13.pdf
- Description:
- DIODE ZENER 39V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,774
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Product details
Overview
SMBG5366CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 39 V, ±2% tolerance (C suffix), and maximum Zener current of 170 mA at 25 °C. It uses DO-215AA gull-wing package, delivers low dynamic impedance (14 Ω at IZT = 30 mA), and is rated for surge current up to 170 A (8.3 ms half-sine). It serves as precision voltage reference and overvoltage clamp in DC power rails.
For engineers reviewing the SMBG5366CE3/TR13 datasheet, SMBG5366CE3/TR13 pinout, SMBG5366CE3/TR13 application, or SMBG5366CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), surge capability (IZSM = 170 A), moisture sensitivity level (MSL 1), and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse-biased breakdown mode with specified test current IZT = 30 mA and knee current IZK = 1.0 mA. Its dynamic impedance ZZT = 14 Ω is measured at 1 kHz with 10% rms ac modulation superimposed on IZT, ensuring stable regulation across load variations.
Thermal design relies on junction-to-lead resistance of 25 °C/W and junction-to-ambient resistance of 90 °C/W (on FR4, 1 oz Cu). Power derating begins above 25 °C ambient, maintaining 5 W dissipation only when lead temperature TL ≤ 25 °C - critical for high-current transient clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V ±2% at IZT = 30 mA - enables tight-regulation reference for 3.3 V–48 V systems. |
| Max Power Dissipation (PD) | 5.0 W at TL ≤ 25 °C - requires thermal management via PCB copper pour or heatsink attachment to leads. |
| Dynamic Impedance (ZZT) | 14 Ω at IZT = 30 mA - ensures minimal output voltage shift under ±10 mA load variation. |
| Max Zener Current (IZM) | 170 mA - defines absolute DC current limit before thermal runaway without forced cooling. |
| Surge Current (IZSM) | 170 A (8.3 ms half-sine) - withstands lightning-induced transients per IEC 61000-4-5 Level 3. |
| Junction Temp Range | −65 °C to +150 °C - supports operation in automotive under-hood and industrial motor drive environments. |
| Moisture Sensitivity | Level 1 per J-STD-020B - no dry pack or baking required prior to reflow soldering. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Lead finish is RoHS-compliant annealed matte-tin, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias operation | Connected to regulated rail or protection node; polarity must be observed to avoid forward conduction. |
| Anode | Reference/ground terminal | Typically tied to system ground or lower-potential node; forms return path for Zener current. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5366B equivalent | Identical electrical specs and test methods - allows drop-in replacement in legacy designs using axial 1N5366B. |
| Gull-wing lead form | Visible solder joints enable automated optical inspection (AOI) and reduce voiding risk vs. J-bend packages. |
| ±2% voltage tolerance (C suffix) | Reduces need for post-production trimming in precision reference circuits; tighter than standard ±5% (B) or ±10% (A). |
| Non-ESD-sensitive | Qualified per MIL-STD-750 Method 1020 - eliminates ESD handling controls during assembly. |
| High surge robustness | 170 A peak surge rating supports IEC 61000-4-5 compliance without external TVS cascading. |
Applications
| Power Supply Overvoltage Clamp | Industrial Sensor Reference |
|---|---|
Use Scenario: Protects 36 V DC input stage of PLC I/O module against load-dump transients up to 60 V. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage at 39 V ±0.78 V. Use Value: Limits stress on downstream DC-DC converter ICs by clamping excess energy into PCB copper pour, avoiding need for larger TVS. | Use Scenario: Provides stable 39 V reference for 16-bit ADC in factory-floor pressure transmitter. IC Role / Device Role / Timing Role: Precision shunt regulator supplying bias to op-amp buffer driving ADC reference input. Use Value: ±2% tolerance and 14 Ω dynamic impedance ensure <0.1% reference drift across 10–100 mA load range. |
| Automotive Body Control Unit | Telecom Line Card Protection |
Use Scenario: Guards microcontroller reset line against battery reversal and jump-start spikes in BCM. IC Role / Device Role / Timing Role: Bidirectional clamping element (with series resistor) limiting voltage to safe logic levels. Use Value: MSL Level 1 and −65 °C to +150 °C rating support uncontrolled storage and under-hood mounting without derating. | Use Scenario: Shields Ethernet PHY interface from induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Primary shunt protector absorbing fast-rising common-mode transients before they reach PHY IC. Use Value: 170 A surge rating handles 8.3 ms half-sine events per IEC 61000-4-5, reducing reliance on secondary TVS arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5366B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and PD; non-RoHS (Sn/Pb) plating. | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts. | Select when retrofitting legacy through-hole designs or where manual repair access is prioritized over density. |
| SMBJ5366B | DO-214AA J-bend package; same VZ and tolerance but higher RθJA (100 °C/W); RoHS-compliant. | Lower thermal performance limits continuous IZ on standard FR4; less suitable for sustained 150 mA operation. | Select when existing footprint uses DO-214AA or when gull-wing inspection is not required. |
Compared with SMBG5366CE3/TR13, 1N5366B offers identical regulation but demands through-hole assembly, while SMBJ5366B fits J-bend footprints but sacrifices 10 °C/W in junction-to-ambient thermal resistance - making SMBG5366CE3/TR13 optimal for thermally constrained SMT power-clamp designs.
Availability
SMBG5366CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom line card protection, and precision sensor reference circuits requiring stable component supply and full RoHS compliance.
Supply support for SMBG5366CE3/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 Corporation (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 SMBG53xxB series was designed specifically for surface-mount 5 W Zener regulation in space-constrained, high-surge environments - emphasizing visible gull-wing solder joints, MSL Level 1 handling, and JEDEC 1N53xxB compatibility.
FAQ
What is the Zener voltage tolerance of SMBG5366CE3/TR13?
The "C" suffix in SMBG5366CE3/TR13 denotes ±2% Zener voltage tolerance at IZT = 30 mA and TL = 25 °C. This yields a guaranteed VZ range of 38.22 V to 39.78 V, enabling tighter regulation than ±5% (B) or ±10% (A) variants in precision reference applications.
Does SMBG5366CE3/TR13 require dry packing before reflow soldering?
No. SMBG5366CE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level (MSL) 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This simplifies manufacturing logistics and eliminates pre-reflow bake cycles.
What is the maximum continuous Zener current for SMBG5366CE3/TR13 at 70 °C ambient?
At 70 °C ambient on FR4 (1 oz Cu), SMBG5366CE3/TR13's power derating reduces its usable dissipation to ~2.8 W. Using P = VZ × IZ, the maximum continuous current is approximately 72 mA - well below its 170 mA IZM rating at 25 °C, confirming thermal derating is essential.
How does the DO-215AA gull-wing package of SMBG5366CE3/TR13 improve manufacturability?
The DO-215AA gull-wing leads of SMBG5366CE3/TR13 provide coplanar solder joints visible for AOI, reduce tombstoning risk compared to J-bend leads, and offer lower thermal resistance (RθJL = 25 °C/W) than DO-214AA alternatives - enhancing both yield and thermal reliability in high-power SMT applications.
Is SMBG5366CE3/TR13 compatible with JEDEC 1N5366B in circuit design?
Yes. SMBG5366CE3/TR13 is explicitly documented as electrically equivalent to JEDEC 1N5366B, with identical VZ, IZT, ZZT, IZM, and surge ratings. It serves as a direct surface-mount replacement, though mechanical footprint and assembly process differ.
SMBG5366CE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-215AA, SMB Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 28.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG5366CE3/TR13 FAQ
1.How can I place an order for SMBG5366CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5366CE3/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 SMBG5366CE3/TR13 reliable?
The price and inventory of SMBG5366CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5366CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5366CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5366CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5366CE3/TR13?
SMBG5366CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5366CE3/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 SMBG5366CE3/TR13?
For technical support, including SMBG5366CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5366CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5366CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5366CE3/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 SMBG5366CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5366CE3/TR13?
All SMBG5366CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5366CE3/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 SMBG5366CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5366CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5366CE3/TR13 Tags
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