Microchip Technology SMBG5340CE3/TR13
- Part No.:
- SMBG5340CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5340CE3/TR13.pdf
- Description:
- DIODE ZENER 6V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBG5340CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 6.0 V, ±2% tolerance (C suffix), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 12.7 A (8.3 ms half-sine), and is used in power supply overvoltage protection and reference circuits.
For engineers reviewing the SMBG5340CE3/TR13 datasheet, SMBG5340CE3/TR13 pinout, SMBG5340CE3/TR13 application, or SMBG5340CE3/TR13 equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant plating details, and direct alternative part comparisons for stable BOM design.
Technical Context
This device operates in reverse breakdown mode with a specified test current (IZT) of 200 mA at 6.0 V, exhibiting dynamic impedance (ZZT) ≤1.0 Ω and knee impedance (ZZK) ≤300 Ω at 1.0 mA. Its thermal resistance junction-to-lead is 25 °C/W, enabling reliable 5 W dissipation when lead temperature (TL) remains below 25 °C.
The SMBG5340CE3/TR13 features moisture sensitivity level 1 per IPC/JEDEC J-STD-020B, requires no dry pack, and withstands 260 °C soldering for 10 s. Cathode polarity is marked by a band; operation requires cathode bias positive relative to anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.0 V ±2% at IZT = 200 mA - precise regulation point for low-voltage reference and clamp circuits |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - full rating achievable only with controlled lead temperature, not ambient |
| Max Regulator Current (IZM) | 790 mA - maximum continuous DC current before exceeding 5 W at upper-tolerance VZ (6.12 V) |
| Surge Current (IZSM) | 12.7 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
| Dynamic Impedance (ZZT) | ≤1.0 Ω at IZT - low AC impedance ensures stable regulation under varying load conditions |
| Junction Temp Range | –65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
| Reverse Leakage (IR) | ≤1.0 µA at VR = 3.0 V - minimal standby power loss in high-impedance bias networks |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: anode and cathode. Cathode identified by molded band; leads are RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node / low-side connection | Connected to circuit ground or lower potential; defines current entry path during forward conduction |
| Cathode | Zener regulation node / high-side connection | Banded terminal; connected to protected rail or reference point; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5340B equivalent | Identical electrical characteristics and testing - enables drop-in replacement in legacy designs |
| Gull-wing lead form | Visible solder joints on FR4 PCB - supports automated optical inspection (AOI) and rework accessibility |
| Moisture Sensitivity Level 1 | No dry pack required - eliminates baking step and reduces assembly cost and risk |
| RoHS-compliant matte-tin plating | e3 suffix indicates lead-free finish meeting EU RoHS Directive 2011/65/EU - compliant for global shipments |
| High surge current capability | 12.7 A non-repetitive peak - protects downstream ICs from ESD and lightning-induced transients |
Applications
| Power Supply Overvoltage Clamp | Low-Voltage Reference Circuit |
|---|---|
Use Scenario: Protects 5 V logic rails from input surges in industrial DC-DC converters. IC Role / Device Role / Timing Role: Zener clamping element shunting excess energy to ground when input exceeds 6.0 V. Use Value: Limits rail excursion to ≤6.12 V (max VZ), preventing latch-up or damage to 5 V microcontrollers and interface ICs. | Use Scenario: Provides stable 6.0 V reference for ADC biasing in sensor signal conditioning modules. IC Role / Device Role / Timing Role: Precision voltage reference source with ±2% tolerance and low ZZT for minimal load regulation error. Use Value: Enables 12-bit ADC accuracy by holding reference within ±120 mV over 1–200 mA operating range. |
| ESD Protection Node | Automotive Body Control Module Clamp |
Use Scenario: Installed at connector interface of USB-C or CAN bus lines to absorb fast transients. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 8.3 ms surges up to 12.7 A without degradation. Use Value: Passes ISO 10605 ESD immunity testing (±30 kV air, ±25 kV contact) without parameter shift. | Use Scenario: Clamps 12 V battery line against load dump spikes in BCM power inputs. IC Role / Device Role / Timing Role: Primary overvoltage clamp activated during ISO 7637-2 Pulse 5a (120 V/400 ms). Use Value: Sustains 5 W dissipation for >100 ms at TL ≤ 25 °C, limiting rail to 6.12 V while surviving repeated pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5340BRLG | Same 6.0 V ±2%, but in axial DO-204AL (T-18) package; higher RθJA (150 °C/W), no RoHS e3 marking | Requires through-hole mounting; unsuitable for high-density SMT layouts or AOI-based production | Select only for legacy repair or prototyping where footprint change is acceptable |
| SMBJ5340B | Same electrical specs, but DO-214AA (J-bend) package; RθJL = 30 °C/W vs. 25 °C/W; identical e3 RoHS compliance | Lower thermal performance limits sustained 5 W operation; requires larger copper area for equivalent cooling | Prefer SMBG5340CE3/TR13 when lead-temperature-controlled 5 W operation is critical |
Compared with 1N5340BRLG and SMBJ5340B, SMBG5340CE3/TR13 offers superior thermal resistance (25 °C/W), visible gull-wing solder joints for process control, and guaranteed RoHS compliance - making it optimal for high-reliability SMT production requiring repeatable 5 W regulation.
Availability
SMBG5340CE3/TR13 is available at Aetrix Electronics and suitable for power supply clamping, precision voltage reference, and automotive transient suppression requiring stable component supply, consistent RoHS compliance, and verified surge performance.
Supply support for SMBG5340CE3/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 SMBG53xx series targets surface-mount Zener regulation in space-constrained, thermally demanding systems where JEDEC compatibility, visible solder joints, and moisture-insensitive packaging are essential.
FAQ
What is the Zener voltage tolerance of SMBG5340CE3/TR13?
The SMBG5340CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its measured VZ at 200 mA test current falls between 5.88 V and 6.12 V at TL = 25 °C. The tighter tolerance supports precision reference and clamp applications where regulation window must remain under ±120 mV.
Can SMBG5340CE3/TR13 be used in place of 1N5340B?
Yes, SMBG5340CE3/TR13 is electrically equivalent to 1N5340B per Microsemi documentation and meets identical JEDEC test standards. However, SMBG5340CE3/TR13 uses a surface-mount DO-215AA gull-wing package versus the axial T-18 package of 1N5340B - requiring PCB footprint redesign but enabling higher density and AOI-compatible assembly.
What is the maximum continuous current SMBG5340CE3/TR13 can handle?
The SMBG5340CE3/TR13 supports a maximum continuous Zener current (IZM) of 790 mA when operated at its upper-tolerance Zener voltage (6.12 V) and with lead temperature maintained below 25 °C. At higher lead temperatures, derating applies per Figure 1 in the datasheet - e.g., ~630 mA at TL = 50 °C.
Does SMBG5340CE3/TR13 require dry packing before reflow?
No, SMBG5340CE3/TR13 has a moisture sensitivity level (MSL) of 1 per IPC/JEDEC J-STD-020B, meaning it is not moisture-sensitive and does not require dry packing or baking prior to reflow soldering. This simplifies handling, reduces floor life constraints, and lowers manufacturing overhead.
What is the surge current rating for SMBG5340CE3/TR13?
The SMBG5340CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 12.7 A, defined as a single 8.3 ms half-sine waveform. This rating enables robust transient suppression in applications such as automotive load dump protection and industrial ESD clamping without parametric shift or failure.
SMBG5340CE3/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):
- 6 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 3 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)
SMBG5340CE3/TR13 FAQ
1.How can I place an order for SMBG5340CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5340CE3/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 SMBG5340CE3/TR13 reliable?
The price and inventory of SMBG5340CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5340CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5340CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5340CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5340CE3/TR13?
SMBG5340CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5340CE3/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 SMBG5340CE3/TR13?
For technical support, including SMBG5340CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5340CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5340CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5340CE3/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 SMBG5340CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5340CE3/TR13?
All SMBG5340CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5340CE3/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 SMBG5340CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5340CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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