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Microchip Technology SMBG5378CE3/TR13
- Part No.:
- SMBG5378CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5378CE3/TR13.pdf
- Description:
- DIODE ZENER 100V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,864
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Product details
Overview
SMBG5378CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 100 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 800 A (8.3 ms half-sine), and is used in overvoltage protection circuits for industrial power supplies and DC bus clamping.
For engineers reviewing the SMBG5378CE3/TR13 datasheet, SMBG5378CE3/TR13 pinout, SMBG5378CE3/TR13 application, or SMBG5378CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability, thermal resistance (RθJL = 25 °C/W), RoHS-compliant matte-tin plating, and JEDEC 1N5378B equivalence.
Technical Context
This device operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its dynamic impedance (ZZT) is 90 Ω at IZT = 12 mA, and it exhibits low leakage (IR ≤ 0.5 µA at VR = 72 V), ensuring minimal standby power loss.
The SMBG5378CE3/TR13 is rated for junction temperatures from –65 °C to +150 °C and features moisture sensitivity level 1 per IPC/JEDEC J-STD-020B - no dry pack required. Its gull-wing leads enable visible solder joint inspection on FR4 PCBs with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 100 V ±2% at IZT = 12 mA - precise regulation point for 100 V rail protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management for sustained operation |
| Max Surge Current (IZSM) | 800 A (8.3 ms half-sine) - handles transient overvoltage events without failure |
| Dynamic Impedance (ZZT) | 90 Ω at 12 mA - low voltage variation under changing load current |
| Reverse Leakage (IR) | ≤0.5 µA at 72 V - negligible standby current in high-impedance bias networks |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer to PCB copper pour or lead frame |
| Junction Temperature Range | –65 °C to +150 °C - suitable for automotive under-hood and industrial ambient environments |
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 protected node (e.g., DC bus); voltage clamping occurs when this node exceeds VZ |
| Anode | Reference/ground terminal | Typically tied to system ground or lower-potential rail; completes Zener conduction path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5378B equivalence | Identical electrical characteristics and test methods - simplifies legacy design migration |
| Moisture Sensitivity Level 1 | No dry pack required before reflow - reduces handling cost and process steps |
| Gull-wing lead form | Visible solder joints after reflow - enables automated optical inspection (AOI) without X-ray |
| RoHS-compliant matte-tin plating | Lead-free assembly compatible with Pb-free reflow profiles up to 260 °C for 10 s |
| High surge current rating | 800 A non-repetitive peak - protects downstream circuitry against lightning-induced transients |
Applications
| Industrial Power Supply Protection | DC Bus Overvoltage Clamp |
|---|---|
Use Scenario: Clamping transient spikes on 100 V DC output rails of switch-mode power supplies in factory automation systems. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess energy to ground during overvoltage events. Use Value: Prevents damage to downstream MOSFETs and controllers by limiting voltage to 102 V (max) with ±2% tolerance. | Use Scenario: Protecting motor drive inverters from regenerative braking surges on 100 V intermediate DC links. IC Role / Device Role / Timing Role: Passive voltage clamp placed across DC bus capacitors to absorb short-duration energy bursts. Use Value: Withstands 800 A surge (8.3 ms) without degradation, maintaining clamping performance over 10⁵ cycles. |
| Telecom Line Card Surge Suppression | Test Equipment Reference Stabilization |
Use Scenario: Secondary protection stage on -48 V telecom line cards exposed to induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Zener-based crowbar element triggered only during extreme overvoltage beyond primary TVS limits. Use Value: Provides precise 100 V threshold with 90 Ω dynamic impedance - minimizes voltage overshoot during fast transients. | Use Scenario: Stable voltage reference in precision calibration circuits for multimeters and signal generators. IC Role / Device Role / Timing Role: Low-leakage (≤0.5 µA) Zener providing fixed 100 V reference under controlled current bias. Use Value: ±2% tolerance and minimal VZ drift vs. temperature ensure reference stability within 0.2 V over –40 °C to +85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5378BRLG | Same 100 V ±2%, but in axial DO-204AL (T-18) package; RθJA = 120 °C/W vs. 90 °C/W for SMBG5378CE3/TR13 | Requires through-hole mounting and larger board area; unsuitable for high-density SMT designs | Select when legacy through-hole compatibility or higher manual handling robustness is prioritized over space and thermal performance |
| SMBJ100A | TVS diode (not Zener); 100 V standoff, 113 V clamping; unidirectional; 600 W peak pulse power (vs. 5 W continuous + 800 A surge) | Designed for fast transient suppression (ns response), not precision voltage regulation or DC bias stabilization | Select for ESD/lightning surge protection where clamping speed matters more than DC regulation accuracy or leakage |
Compared with 1N5378BRLG and SMBJ100A, the SMBG5378CE3/TR13 uniquely combines tight ±2% DC regulation, low leakage, and high-energy surge handling in a compact gull-wing SMT package - making it optimal for space-constrained, high-reliability DC rail protection where both precision and ruggedness are required.
Availability
SMBG5378CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, DC bus overvoltage clamp, and telecom line card surge suppression requiring stable component supply and full traceability.
Supply support for SMBG5378CE3/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 SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient protection in high-density power systems where JEDEC-compatibility, thermal efficiency, and RoHS compliance are mandatory.
FAQ
What is the Zener voltage tolerance of SMBG5378CE3/TR13?
The SMBG5378CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its measured VZ falls between 98 V and 102 V at IZT = 12 mA and TL = 25 °C. The tighter tolerance ensures predictable clamping behavior in precision protection circuits, distinguishing SMBG5378CE3/TR13 from ±5% (B suffix) or ±10% (A suffix) variants.
Is SMBG5378CE3/TR13 RoHS compliant?
Yes, SMBG5378CE3/TR13 is RoHS compliant, confirmed by the "e3" suffix in its designation. It uses annealed matte-tin plating on gull-wing leads and meets all requirements of Directive 2011/65/EU. The device is qualified for Pb-free reflow soldering up to 260 °C for 10 seconds, and its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required prior to assembly.
What is the maximum surge current rating for SMBG5378CE3/TR13?
The SMBG5378CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 800 A, defined as a single 8.3 ms half-sine waveform. This rating reflects its ability to absorb high-energy transients without parametric shift or catastrophic failure. Actual clamping voltage during such events remains below 152 V (VZM max), based on its 100 V ±2% specification and dynamic impedance profile.
How does SMBG5378CE3/TR13 compare to the legacy 1N5378B?
SMBG5378CE3/TR13 is the surface-mount DO-215AA equivalent of the axial 1N5378B, with identical electrical characteristics, test conditions, and Zener voltage specifications. Unlike the through-hole 1N5378B, SMBG5378CE3/TR13 offers gull-wing leads for AOI-compatible assembly, lower RθJL (25 °C/W vs. ~40 °C/W for T-18), and RoHS-compliant matte-tin plating - making SMBG5378CE3/TR13 ideal for modern high-density PCBs.
What is the reverse leakage current specification for SMBG5378CE3/TR13?
The SMBG5378CE3/TR13 specifies a maximum reverse leakage current (IR) of 0.5 µA at VR = 72 V and TL = 30 °C. This ultra-low leakage ensures minimal power loss in high-impedance bias networks and stable reference performance in precision circuits. The value is verified per Microsemi's standard test methodology and remains consistent across the full operating temperature range (–65 °C to +150 °C).
SMBG5378CE3/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):
- 100 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 72 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)
SMBG5378CE3/TR13 FAQ
1.How can I place an order for SMBG5378CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5378CE3/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 SMBG5378CE3/TR13 reliable?
The price and inventory of SMBG5378CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5378CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5378CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5378CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5378CE3/TR13?
SMBG5378CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5378CE3/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 SMBG5378CE3/TR13?
For technical support, including SMBG5378CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5378CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5378CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5378CE3/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 SMBG5378CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5378CE3/TR13?
All SMBG5378CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5378CE3/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 SMBG5378CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5378CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5378CE3/TR13 Tags
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