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Microchip Technology SMBG5342CE3/TR13
- Part No.:
- SMBG5342CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5342CE3/TR13.pdf
- Description:
- DIODE ZENER 6.8V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,561
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Product details
Overview
SMBG5342CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 6.8 V, ±2% tolerance (C suffix), and maximum Zener current of 700 mA at 25 °C. It features gull-wing DO-215AA packaging, 25 °C/W junction-to-lead thermal resistance, and is rated for operation from –65 °C to +150 °C. It serves as a precision voltage reference or overvoltage clamp in power supply feedback loops.
For engineers reviewing the SMBG5342CE3/TR13 datasheet, SMBG5342CE3/TR13 pinout, SMBG5342CE3/TR13 application, or SMBG5342CE3/TR13 equivalent, key selection criteria include its 6.8 V regulation point, ±2% tolerance, 5 W power rating under lead-temperature-limited conditions, DO-215AA gull-wing footprint compatibility, and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse-biased Zener breakdown mode, delivering stable voltage regulation across wide current (175 mA test current) and temperature ranges. Its dynamic impedance is 1.0 Ω at IZT, and it exhibits minimal voltage drift versus current due to low ZZT and high IZM capability.
The SMBG5342CE3/TR13 uses a void-free thermosetting epoxy case (UL94V-0), cathode band polarity marking, and is moisture-sensitive Level 1 per J-STD-020B-no dry pack required. It withstands non-repetitive 8.3 ms half-sine surge currents up to 11.5 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V ±2% at 175 mA - precise regulation point for feedback sensing or clamping. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via PCB copper pour or heatsinking to sustain full rating. |
| Dynamic Impedance (ZZT) | 1.0 Ω at 175 mA - ensures minimal output voltage variation under load transients. |
| Max Regulator Current (IZM) | 700 mA - defines absolute DC current limit before thermal runaway under proper lead-temperature control. |
| Junction-to-Lead RθJL | 25 °C/W - enables accurate thermal design when mounted on FR4 with recommended pad layout. |
| Surge Current (IZSM) | 11.5 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure. |
| Reverse Leakage (IR) | 10 µA at 5.2 V - guarantees low 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; device operated with banded end positive relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to reference or clamped node; voltage measured relative to anode. |
| Anode | Reference/ground return | Typically tied to system ground or power rail return path; completes Zener conduction loop. |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish meeting JEDEC/IPC standards for solderability and reliability. |
| Gull-wing DO-215AA leads | Enables visual solder joint inspection and robust mechanical attachment on FR4 boards. |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to reflow-reduces manufacturing overhead and risk of popcorning. |
| High surge current rating | 11.5 A non-repetitive surge capacity supports IEC 61000-4-5 compliance in industrial power inputs. |
| Low dynamic impedance | 1.0 Ω at 175 mA ensures tight regulation stability in closed-loop feedback applications. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Integrated into TL431-based or discrete op-amp feedback networks to set output voltage in AC/DC adapters and DC/DC converters. IC Role / Device Role / Timing Role: Precision voltage reference element defining regulation threshold. Use Value: ±2% tolerance and 1.0 Ω ZZT enable <±1% output accuracy over line/load/temperature in cost-sensitive designs. |
Use Scenario: Placed across sensitive IC inputs or bus lines to shunt transient energy during ESD or lightning-induced surges. IC Role / Device Role / Timing Role: Fast-acting voltage clamp limiting peak excursion to 6.8 V. Use Value: 11.5 A surge rating and 10 µA leakage at 5.2 V ensure protection without loading normal operation. |
| Industrial Sensor Signal Conditioning | Programmable Logic Controller Input Protection |
|
Use Scenario: Biasing and level-shifting analog sensor outputs (e.g., 4–20 mA transmitters) before ADC input stages. IC Role / Device Role / Timing Role: Stable reference for offset calibration and rail clamping. Use Value: –65 °C to +150 °C operating range and Level 1 moisture rating support deployment in harsh factory environments. |
Use Scenario: Protecting digital input channels from field-wiring transients in PLC backplanes and I/O modules. IC Role / Device Role / Timing Role: Primary overvoltage limiter on 24 V DC input rails. Use Value: Gull-wing DO-215AA footprint allows high-density placement near connectors, and 5 W rating sustains repeated surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5342B | Axial-leaded T-18 package; identical electrical specs but no RoHS e3 marking; higher RθJA (125 °C/W). | Requires through-hole assembly; unsuitable for high-density SMT layouts. | Select only for legacy through-hole designs or where axial form factor is mandated. |
| SMBJ5342B | DO-214AA (J-bend) package; same VZ, tolerance, and PD, but RθJL = 30 °C/W and IZM = 680 mA. | Lower thermal performance limits sustained power in compact layouts. | Choose when DO-214AA footprint is already standardized; verify thermal margin at full load. |
Compared with SMBG5342CE3/TR13, 1N5342B offers identical regulation but lacks SMT compatibility and RoHS compliance, while SMBJ5342B trades 20% lower thermal efficiency and 3% lower IZM for J-bend mount flexibility-making SMBG5342CE3/TR13 optimal for high-reliability, high-density, lead-free production.
Availability
SMBG5342CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and programmable logic controller input protection requiring stable component supply, consistent RoHS compliance, and gull-wing surface-mount reliability.
Supply support for SMBG5342CE3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding power systems-emphasizing manufacturability, moisture resilience, and JEDEC-compatibility.
FAQ
What is the Zener voltage tolerance of SMBG5342CE3/TR13?
The SMBG5342CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in the part number. This means its breakdown voltage is guaranteed between 6.664 V and 6.936 V when tested at 175 mA and 25 °C. The tighter tolerance supports precision regulation in feedback circuits where output accuracy is critical, and the SMBG5342CE3/TR13 maintains this spec across its full operating temperature range.
Does SMBG5342CE3/TR13 require dry packing before reflow soldering?
No, SMBG5342CE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity Level 1 classification, meaning it can be stored indefinitely at ambient conditions without baking. This eliminates pre-reflow baking steps and reduces risk of popcorn cracking during reflow-key for high-yield SMT production of the SMBG5342CE3/TR13.
What is the maximum continuous Zener current for SMBG5342CE3/TR13?
The maximum continuous Zener current (IZM) for SMBG5342CE3/TR13 is 700 mA when lead temperature (TL) is maintained below 25 °C. This value assumes proper thermal design using the recommended DO-215AA pad layout on FR4. At ambient temperature (TA = 25 °C), the derated IZM drops to approximately 138 mA due to higher thermal resistance to ambient-so SMBG5342CE3/TR13 must be used with attention to PCB copper area and airflow.
How does the gull-wing lead frame of SMBG5342CE3/TR13 benefit manufacturing?
The gull-wing lead frame of SMBG5342CE3/TR13 enables optical inspection of solder joints after reflow, improving process yield and field reliability. Its geometry provides strong mechanical anchoring on FR4 substrates and supports automated optical inspection (AOI) without shadowing. Unlike J-bend packages, the SMBG5342CE3/TR13's gull-wing leads also reduce tombstoning risk during reflow-critical for consistent assembly of the SMBG5342CE3/TR13 in high-volume production.
Is SMBG5342CE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5342CE3/TR13 is fully compatible with standard lead-free reflow profiles. Its matte-tin (e3) plating meets J-STD-002 and MIL-STD-750 Method 2026 for solderability, and its package withstands peak temperatures up to 260 °C for 10 seconds. The SMBG5342CE3/TR13 has been qualified for Pb-free assembly per JEDEC J-STD-020D, making it suitable for RoHS-compliant manufacturing lines handling the SMBG5342CE3/TR13.
SMBG5342CE3/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):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 4.9 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)
SMBG5342CE3/TR13 FAQ
1.How can I place an order for SMBG5342CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5342CE3/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 SMBG5342CE3/TR13 reliable?
The price and inventory of SMBG5342CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5342CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5342CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5342CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5342CE3/TR13?
SMBG5342CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5342CE3/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 SMBG5342CE3/TR13?
For technical support, including SMBG5342CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5342CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5342CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5342CE3/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 SMBG5342CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5342CE3/TR13?
All SMBG5342CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5342CE3/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 SMBG5342CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5342CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5342CE3/TR13 Tags
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