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Microchip Technology SMBG5378C/TR13
- Part No.:
- SMBG5378C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5378C/TR13.pdf
- Description:
- DIODE ZENER 100V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,603
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Product details
Overview
SMBG5378C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 100 V, ±2% tolerance (C suffix), and maximum Zener current IZM of 47.5 mA at TL < 25 °C. It uses DO-215AA gull-wing package, supports visible solder joints, and operates across –65 °C to +150 °C junction temperature range. It delivers stable voltage regulation in power supply overvoltage protection circuits.
For engineers reviewing the SMBG5378C/TR13 datasheet, SMBG5378C/TR13 pinout, SMBG5378C/TR13 application, or SMBG5378C/TR13 equivalent, this page provides verified electrical specs, thermal derating behavior, JEDEC-compliant Zener characteristics, RoHS-compliant matte-tin plating, and direct alternatives for 100 V ±2% regulation with 5 W dissipation capability.
Technical Context
This device functions as a precision shunt regulator operating in reverse-biased breakdown mode, with dynamic impedance ZZT of 90 Ω measured at 12 mA test current (IZT). Its Zener knee impedance ZZK is 44 Ω at 1.0 mA, indicating low-voltage-noise performance near conduction threshold.
Thermal resistance junction-to-lead is 25 °C/W, enabling effective heat transfer to PCB copper when mounted per recommended footprint; junction-to-ambient resistance is 90 °C/W on FR4 with 1 oz Cu, defining its power derating envelope above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 100 V ±2% at IZT = 12 mA - ensures tight regulation tolerance for reference and clamp applications |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - defines maximum continuous DC power handling with adequate heatsinking |
| Max Regulator Current (IZM) | 47.5 mA - derived from PD/VZmax (102 V), sets safe DC bias limit without thermal runaway |
| Dynamic Impedance (ZZT) | 90 Ω at IZT = 12 mA - quantifies AC impedance in regulation region; lower values improve ripple rejection |
| Reverse Leakage (IR) | 0.5 µA at VR = 72 V - confirms minimal off-state current under 72% of VZ, critical for low-power standby |
| Junction Temp Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial control environments |
| Surge Current (IZSM) | 800 A (8.3 ms half-sine) - enables transient overvoltage clamping in surge protection designs |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are accessible via two J-bend leads suitable for automated reflow assembly. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required prior to assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/ground node in shunt configuration | Connected to system ground or lowest potential point; forms return path for Zener current |
| Cathode | Regulated output node | Banded end; connected to input rail being clamped or referenced; carries full IZM during regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5378B equivalence | Fully compatible with legacy 1N5378B in electrical specs, test methods, and reliability screening |
| RoHS-compliant matte-tin plating | Meets lead-free soldering requirements per MIL-STD-750 Method 2026; compatible with SnPb and SAC305 |
| Gull-wing lead geometry | Enables visual post-reflow solder joint inspection and reduces tombstoning risk on fine-pitch layouts |
| Level 1 moisture sensitivity | Eliminates baking preconditioning; supports standard SMT floor life without dry pack or humidity control |
| High surge withstand | Rated for 800 A non-repetitive 8.3 ms surge - suitable for IEC 61000-4-5 Level 4 transient suppression |
Applications
| DC Power Supply Clamp | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Clamping unregulated 120 V DC bus against transients in industrial motor drives. IC Role / Device Role / Timing Role: Shunt regulator providing passive voltage limiting at 100 V threshold. Use Value: Prevents downstream SMPS controller damage by diverting >47.5 mA surge current before rail exceeds 102 V. |
Use Scenario: Protecting analog sensor inputs from ESD-induced voltage spikes in factory automation systems. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at connector entry point. Use Value: Limits peak voltage to ≤102 V with sub-µA leakage at 72 V, preserving signal integrity during normal operation. |
| Reference Voltage Source | Field-Programmable Gate Array (FPGA) Configuration Clamp |
Use Scenario: Providing stable 100 V reference for high-voltage ADC calibration in energy metering modules. IC Role / Device Role / Timing Role: Precision shunt reference with ±2% initial accuracy and low ZZT for low-noise biasing. Use Value: Enables 0.5% full-scale measurement accuracy over –40 °C to +85 °C due to tight VZ tolerance and stable thermal coefficient. |
Use Scenario: Safeguarding FPGA configuration pins during hot-plug insertion in telecom line cards. IC Role / Device Role / Timing Role: Input rail clamp preventing latch-up or gate oxide damage during plug-in surges. Use Value: Absorbs 800 A surge energy without degradation, maintaining functional safety compliance per IEC 61508 SIL-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5378B | Same VZ (100 V), ±5% tolerance (B suffix); higher IR (5 µA at 72 V); identical DO-215AA package | Lower cost for non-critical regulation where ±5% tolerance is acceptable | Select when tighter tolerance is unnecessary and legacy qualification is required |
| SMBJ5378C | Same VZ and tolerance; DO-214AA package (J-bend); RθJA = 100 °C/W vs. 90 °C/W; same IZM (47.5 mA) | Higher board-level thermal resistance requires larger copper area for equivalent power handling | Choose for compatibility with existing DO-214AA footprints or when gull-wing inspection is not required |
Compared with SMBG5378C/TR13, 1N5378B trades ±2% tolerance for wider leakage and lower cost, while SMBJ5378C retains identical regulation specs but shifts thermal management burden to PCB layout due to higher junction-to-ambient resistance.
Availability
SMBG5378C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protectors, and high-voltage sensor interfaces requiring stable component supply with RoHS compliance and JEDEC-standard Zener performance.
Supply support for SMBG5378C/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 5 W Zener regulation in space-constrained, high-surge environments-emphasizing visible solder joints, moisture resilience, and JEDEC interoperability.
FAQ
What is the Zener voltage tolerance for SMBG5378C/TR13?
The "C" suffix in SMBG5378C/TR13 specifies a ±2% Zener voltage tolerance at 12 mA test current. This yields a guaranteed VZ range of 98.0 V to 102.0 V under standard test conditions (TL = 25 °C), making SMBG5378C/TR13 suitable for precision clamping where tighter regulation is required compared to ±5% (B) or ±10% (A) variants.
Does SMBG5378C/TR13 require dry packing before reflow soldering?
No, SMBG5378C/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored and processed under standard factory conditions without dry pack or baking. Its void-free epoxy body and Level 1 rating eliminate preconditioning steps, reducing manufacturing overhead versus higher MSL-rated components.
What is the maximum surge current rating for SMBG5378C/TR13?
SMBG5378C/TR13 is rated for 800 A peak non-repetitive surge current (IZSM) under an 8.3 ms half-sine waveform. This rating is validated per Microsemi's test methodology and supports compliance with IEC 61000-4-5 Level 4 surge immunity testing when used with appropriate series impedance in the protection circuit.
How does the thermal resistance of SMBG5378C/TR13 affect PCB layout?
SMBG5378C/TR13 has RθJA = 90 °C/W on FR4 with 1 oz Cu and recommended footprint. To sustain 5 W continuously, the PCB must provide sufficient copper area and thermal vias to keep junction temperature below 150 °C. Derating begins above 25 °C ambient-e.g., only ~3.5 W allowed at TA = 50 °C-so layout must prioritize thermal relief.
Is SMBG5378C/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5378C/TR13 features RoHS-compliant annealed matte-tin plating and is qualified for solder reflow up to 260 °C for 10 seconds. It supports standard SAC305 profiles and remains compatible with mixed-technology assemblies containing both leaded and lead-free components without intermetallic concerns.
SMBG5378C/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)
SMBG5378C/TR13 FAQ
1.How can I place an order for SMBG5378C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5378C/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 SMBG5378C/TR13 reliable?
The price and inventory of SMBG5378C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5378C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5378C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5378C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5378C/TR13?
SMBG5378C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5378C/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 SMBG5378C/TR13?
For technical support, including SMBG5378C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5378C/TR13 requirements.
6.How does Aetrix verify that SMBG5378C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5378C/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 SMBG5378C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5378C/TR13?
All SMBG5378C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5378C/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 SMBG5378C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5378C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5378C/TR13 Tags
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