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Microchip Technology SMBG5356BE3/TR13
- Part No.:
- SMBG5356BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5356BE3/TR13.pdf
- Description:
- DIODE ZENER 19V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,484
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Product details
Overview
SMBG5356BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 19 V, ±5% tolerance (B suffix), and DO-215AA gull-wing package. It delivers stable voltage regulation across wide current (65 mA test current) and temperature (–65 to +150 °C) ranges, and is used in overvoltage protection and reference circuits for industrial power supplies.
For engineers reviewing the SMBG5356BE3/TR13 datasheet, SMBG5356BE3/TR13 pinout, SMBG5356BE3/TR13 application, or SMBG5356BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (5.3 A), thermal resistance (90 °C/W junction-to-ambient), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates in reverse-biased breakdown mode, maintaining a stable 19 V output at IZT = 65 mA with dynamic impedance ZZT = 3.0 Ω and knee impedance ZZK = 250 Ω at 1 mA. Its low leakage (IR ≤ 0.5 µA at VR = 13.7 V) ensures minimal standby loss in precision bias networks.
The DO-215AA gull-wing package enables visible solder joints and supports reflow compatibility up to 260 °C for 10 s. With moisture sensitivity level 1 and no dry-pack requirement, it simplifies handling and storage in high-volume manufacturing environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19 V ±5% at IZT = 65 mA - defines precise clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management on FR4 board to sustain full rating |
| Max Regulator Current (IZM) | 5.3 mA - maximum continuous DC current before exceeding 5 W at upper VZ limit (20.1 V) |
| Dynamic Impedance (ZZT) | 3.0 Ω at IZT - ensures tight voltage regulation under varying load conditions |
| Surge Current (IZSM) | 5.3 A (8.3 ms half-sine) - withstands transient overvoltage events without degradation |
| Junction Temp Range | –65 to +150 °C - supports operation in extended-temperature industrial and automotive under-hood applications |
| Thermal Resistance RθJA | 90 °C/W on FR4 (1 oz Cu) - dictates PCB copper area and heatsinking requirements for thermal design |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end is positive during reverse-bias operation. Leads are RoHS-compliant annealed matte-tin plated per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/Return node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode | Regulated output node | Banded terminal; connected to protected circuit node requiring stable 19 V reference or clamp |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5356B equivalence | Identical electrical characteristics and testing to through-hole 1N5356B - enables drop-in replacement in legacy designs |
| Moisture Sensitivity Level 1 | No dry pack required - eliminates baking step and reduces assembly cost and risk of popcorn failure |
| Gull-wing lead form | Visible solder joints - enables automated optical inspection (AOI) and improves process yield verification |
| High surge capability | 5.3 A non-repetitive surge (8.3 ms) - protects downstream ICs from lightning-induced or inductive-switching transients |
| Low leakage current | ≤0.5 µA at 13.7 V - minimizes quiescent power loss in battery-backed or energy-sensitive systems |
Applications
| Industrial Power Supply Protection | Automotive ECU Reference |
|---|---|
Use Scenario: Clamping transient spikes on 24 V rail in programmable logic controller (PLC) power input stage. IC Role / Device Role / Timing Role: Overvoltage protection element limiting rail voltage to 19 V during load dump or inductive kickback. Use Value: Prevents damage to downstream DC-DC converters and microcontrollers rated for ≤20 V absolute maximum. |
Use Scenario: Providing stable 19 V reference for analog sensor signal conditioning in engine control unit (ECU). IC Role / Device Role / Timing Role: Precision voltage reference source for ADC biasing and op-amp feedback networks. Use Value: Maintains measurement accuracy across –40 to +125 °C ambient due to low tempco and stable VZ. |
| Telecom Line Card Surge Suppression | Medical Equipment Voltage Clamp |
Use Scenario: Secondary-level surge suppression on -48 V telecom line card inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt clamp absorbing energy between differential pair and chassis ground. Use Value: Survives 5.3 A 8.3 ms surges per ITU-T K.20/21 standards without parameter shift or failure. |
Use Scenario: Isolated voltage clamp on patient-connected monitoring circuitry to limit fault voltage to safe SELV levels. IC Role / Device Role / Timing Role: Safety-critical overvoltage limiter ensuring compliance with IEC 60601-1 creepage/clearance requirements. Use Value: Certified RoHS-compliant matte-tin plating avoids lead contamination in sterilizable medical assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5356B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZM specs; non-RoHS Sn/Pb plating standard | Requires axial-leaded PCB footprint and wave soldering; not suitable for high-density SMT layouts | Select when upgrading legacy through-hole designs or where manual repairability is prioritized over board space |
| SMBJ5356B | Same Zener parameters but in DO-214AA J-bend package; RθJA = 85 °C/W (slightly better thermal performance) | Lower profile than SMBG but less visible solder joint; different pad layout and reflow profile requirements | Prefer for space-constrained boards where gull-wing inspection is not mandatory and thermal margin is critical |
Compared with SMBG5356BE3/TR13, 1N5356B offers identical regulation performance but demands through-hole assembly, while SMBJ5356B provides marginally improved thermal resistance in a J-bend form factor-neither is pin-compatible, and both require PCB layout changes.
Availability
SMBG5356BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive ECU reference, and telecom line card surge suppression requiring stable component supply, RoHS compliance, and traceable sourcing.
Supply support for SMBG5356BE3/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 suppression in harsh-environment power systems, emphasizing JEDEC compatibility, surge robustness, and moisture-insensitive packaging.
FAQ
What is the Zener voltage tolerance of SMBG5356BE3/TR13?
The 'B' suffix in SMBG5356BE3/TR13 indicates a ±5% Zener voltage tolerance. At 25 °C, its nominal VZ is 19 V, meaning the actual breakdown voltage falls between 18.05 V and 19.95 V when tested at IZT = 65 mA. This tolerance is verified per JEDEC JESD201 standards and applies across the full operating temperature range.
Is SMBG5356BE3/TR13 RoHS compliant?
Yes, SMBG5356BE3/TR13 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. It features annealed matte-tin plating per MIL-STD-750 method 2026 and meets Directive 2011/65/EU requirements. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed allowable thresholds.
What is the maximum surge current rating for SMBG5356BE3/TR13?
SMBG5356BE3/TR13 has a maximum non-repetitive peak surge current (IZSM) of 5.3 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0246-1. This rating assumes proper PCB thermal design and is validated per IEC 61000-4-5 surge immunity test conditions.
How does SMBG5356BE3/TR13 compare to the through-hole 1N5356B?
SMBG5356BE3/TR13 is the surface-mount DO-215AA equivalent of 1N5356B, sharing identical electrical specifications including VZ = 19 V ±5%, IZT = 65 mA, ZZT = 3.0 Ω, and PD = 5.0 W. The primary differences are package (gull-wing vs. axial), plating (RoHS matte-tin vs. Sn/Pb), and mounting method-no electrical performance trade-offs exist between them.
What is the thermal resistance of SMBG5356BE3/TR13 when mounted on FR4?
When mounted on a standard FR4 PCB with 1 oz copper and the recommended footprint, SMBG5356BE3/TR13 exhibits a junction-to-ambient thermal resistance (RθJA) of 90 °C/W. Its junction-to-lead resistance (RθJL) is 25 °C/W, indicating efficient heat conduction to the PCB pads if thermal vias and copper pour are implemented per Microsemi's pad layout guidelines.
SMBG5356BE3/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):
- 19 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 13.7 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)
SMBG5356BE3/TR13 FAQ
1.How can I place an order for SMBG5356BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5356BE3/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 SMBG5356BE3/TR13 reliable?
The price and inventory of SMBG5356BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5356BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5356BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5356BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5356BE3/TR13?
SMBG5356BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5356BE3/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 SMBG5356BE3/TR13?
For technical support, including SMBG5356BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5356BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5356BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5356BE3/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 SMBG5356BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5356BE3/TR13?
All SMBG5356BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5356BE3/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 SMBG5356BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5356BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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