Microchip Technology SMBG5365CE3/TR13
- Part No.:
- SMBG5365CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5365CE3/TR13.pdf
- Description:
- DIODE ZENER 36V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBG5365CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 36 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5365CE3/TR13 datasheet, SMBG5365CE3/TR13 pinout, SMBG5365CE3/TR13 application, or SMBG5365CE3/TR13 equivalent, this part delivers stable 36 V regulation at 30 mA test current with 11 Ω dynamic impedance, low leakage (<0.5 µA at 25.9 V), and high surge capability (160 A @ 8.3 ms).
Technical Context
This device operates as a precision shunt regulator in reverse-biased breakdown mode, maintaining 36 V ±0.72 V across 1.0 mA to 30 mA operating current. Its thermal resistance junction-to-lead is 25 °C/W, enabling reliable 5 W dissipation at lead temperature <25 °C.
The DO-215AA gull-wing package provides visible solder joints and IPC/JEDEC Level 1 moisture sensitivity-no dry pack required. Cathode polarity is marked by a band; operation requires cathode-positive bias relative to anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±2% at 30 mA - precise reference for feedback loops and clamp thresholds |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports high-energy transient suppression with adequate heatsinking |
| Dynamic Impedance (ZZT) | 11 Ω at IZT = 30 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | <0.5 µA at VR = 25.9 V - negligible standby current in battery-backed or low-power systems |
| Surge Current (IZSM) | 160 A (8.3 ms half-sine) - withstands IEC 61000-4-5 line surges without degradation |
| Junction Temperature Range | –65 °C to +150 °C - suitable for automotive under-hood and industrial ambient environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct thermal path to PCB copper for passive cooling |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by a band on the body. Anode and cathode terminals are formed as symmetrical gull-wing leads for visual solder inspection and automated optical alignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node / ground return | Connected to system ground or lower-potential rail; carries full Zener current during regulation |
| Cathode | Regulated output node | Banded end; held at stable 36 V above anode; used for voltage reference or clamping |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5365B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish meeting IPC-J-STD-020B Level 1 - no dry pack needed pre-reflow |
| Gull-wing lead form | DO-215AA package enables AOI-compatible solder joint inspection and high-density PCB layout |
| Level 1 moisture sensitivity | No bake requirement before reflow - reduces manufacturing overhead and avoids thermal stress |
| High surge current rating | 160 A non-repetitive peak - protects downstream circuitry against lightning-induced transients |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides stable 36 V reference for optocoupler-based feedback in 48 V input DC-DC converters. IC Role / Device Role / Timing Role: Shunt regulator establishing precise error amplifier reference voltage. Use Value: Maintains ±2% output regulation across –40 °C to +125 °C ambient with <11 Ω dynamic impedance. |
Use Scenario: Supplies excitation voltage to 4–20 mA current-loop pressure sensors in factory automation. IC Role / Device Role / Timing Role: Precision voltage reference source for sensor bridge biasing. Use Value: Delivers <0.5 µA leakage at 25.9 V, minimizing offset error in low-current analog signal chains. |
| Overvoltage Clamp for CAN Transceivers | Automotive ECU Power Rail Protection |
Use Scenario: Clamps transients on CAN_H/CAN_L lines during load dump events in vehicle networks. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting bus voltage to 36 V. Use Value: Withstands 160 A surge (8.3 ms) without parametric shift-meets ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Guards microcontroller I/O rails against 12 V battery spikes up to 36 V during cold-crank conditions. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on 3.3 V/5 V LDO inputs. Use Value: Stable 36 V clamping threshold with ±2% tolerance ensures consistent trip point across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Same 36 V ±2%, 5 W rating but axial DO-204AL (T-18) package; Sn/Pb plating | Through-hole mounting only; not suitable for SMT-only assembly | Select when legacy through-hole design or manual repair is required |
| SMBJ5365B | Identical electrical specs but DO-214AA (J-bend) package; same RoHS e3 option available | Lower profile than DO-215AA; different pad layout and thermal path (RθJA = 90 °C/W) | Select when board space constraints favor J-bend geometry or existing footprint reuse is needed |
Compared with SMBG5365CE3/TR13, 1N5365B requires through-hole assembly and lacks gull-wing visibility, while SMBJ5365B offers identical regulation but different thermal performance and solder joint inspection capability-choice depends on packaging, manufacturability, and thermal management priorities.
Availability
SMBG5365CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, CAN bus protection, automotive ECUs, and surge-protected I/O interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5365CE3/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial applications.
The SMBG53xxB series targets surface-mount Zener regulation in space-constrained, high-surge environments-optimized for stable voltage reference and robust overvoltage protection in mission-critical power systems.
FAQ
What is the Zener voltage tolerance of SMBG5365CE3/TR13?
The SMBG5365CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its regulated voltage falls within 35.28 V to 36.72 V at the specified test current of 30 mA and lead temperature of 25 °C, ensuring tight reference accuracy for feedback and protection circuits.
Does SMBG5365CE3/TR13 require dry packing before reflow soldering?
No, SMBG5365CE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking-reducing process steps and avoiding thermal stress on the DO-215AA package.
What is the maximum surge current rating for SMBG5365CE3/TR13?
The SMBG5365CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 160 A, defined as an 8.3 ms half-sine waveform. This rating enables reliable protection against IEC 61000-4-5 surge events and automotive load-dump transients without parameter shift or failure.
How does the DO-215AA package of SMBG5365CE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5365CE3/TR13 uses gull-wing leads for visible solder joints and improved AOI compatibility, whereas DO-214AA (used in SMBJ5365B) employs J-bend leads. DO-215AA also offers lower thermal resistance junction-to-lead (25 °C/W vs. ~35 °C/W typical for DO-214AA), enhancing power handling in thermally constrained layouts.
Is SMBG5365CE3/TR13 compatible with JEDEC 1N5365B in terms of electrical performance?
Yes, SMBG5365CE3/TR13 is electrically equivalent to JEDEC 1N5365B per Microsemi documentation: identical Zener voltage (36 V ±2%), test current (30 mA), dynamic impedance (11 Ω), and power rating (5 W). The only differences are package (DO-215AA vs. DO-204AL) and plating (RoHS matte-tin vs. Sn/Pb), making it a functional replacement where SMT is required.
SMBG5365CE3/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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25.9 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)
SMBG5365CE3/TR13 FAQ
1.How can I place an order for SMBG5365CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5365CE3/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 SMBG5365CE3/TR13 reliable?
The price and inventory of SMBG5365CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5365CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5365CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5365CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5365CE3/TR13?
SMBG5365CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5365CE3/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 SMBG5365CE3/TR13?
For technical support, including SMBG5365CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5365CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5365CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5365CE3/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 SMBG5365CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5365CE3/TR13?
All SMBG5365CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5365CE3/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 SMBG5365CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5365CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5365CE3/TR13 Tags

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