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Vishay General Semiconductor - Diodes Division SMBG13A-M3/5B
- Part No.:
- SMBG13A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG13A-M3/5B.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,012
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Product details
Overview
SMBG13A-M3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 13 V standoff voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V clamping voltage (VC) at 27.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive engine control units to safeguard MOSFET gate drivers against load dump transients.
For engineers reviewing the SMBG13A-M3/5B datasheet, SMBG13A-M3/5B pinout, SMBG13A-M3/5B application, or SMBG13A-M3/5B equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, AEC-Q101 qualification, 150 °C max junction temperature, and verified clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below VWM = 13 V and rapidly avalanches above VBR = 14.4–15.9 V to limit transient voltages. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1 ns), critical for protecting sensitive gate oxide in automotive power stages.
The SMBG13A-M3/5B is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits low incremental surge resistance, enabling effective energy diversion without thermal runaway. Its M3 suffix confirms halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance - meeting automotive reliability requirements per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed avalanche initiation range under standardized test current |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage during 600 W 10/1000 μs transient, defining protected circuit voltage ceiling |
| PPPM | 600 W - Peak pulse power handling capability with industry-standard waveform, derated above 25 °C |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms), supporting load-dump and alternator overshoot immunity |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMBG (DO-215AA) - Surface-mount outline with 0.235" × 0.255" footprint and gull-wing leads for automated assembly |
Pinout & Package
SMBG13A-M3/5B uses the SMBG (DO-215AA) surface-mount package: low-profile, gull-wing leaded case with cathode band marking on the anode-side end cap; terminals are matte tin-plated for J-STD-002 solderability and JESD22-B102 reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 600 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 5a load dump surges without degradation in engine control modules |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive environmental compliance mandates and JESD201 Class 2 whisker resistance |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream ICs while maintaining margin above VWM |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture-related popcorning |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting N-channel MOSFET gate drivers from inductive kickback during solenoid switching in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between gate and source to clamp transient spikes before they exceed MOSFET VGS(max). Use Value: Limits gate voltage to ≤21.5 V during 100 V/50 ms load dump events, preventing gate oxide rupture and ensuring >100,000-cycle reliability. | Use Scenario: Safeguarding isolated gate driver outputs in variable-frequency drives exposed to IGBT switching noise and bus transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected across gate-to-emitter path to absorb Miller-induced voltage spikes. Use Value: Clamps sub-100 ns transients within 21.5 V, preserving driver output integrity and reducing false turn-on risk in 400 V DC bus applications. |
| Telecom Power Supply Input Stage | Automotive Body Control Module (BCM) |
Use Scenario: Front-end protection of 48 V telecom rectifier inputs against lightning-induced surges and AC line faults. IC Role / Device Role / Timing Role: Primary-level TVS in series with fuse and common-mode choke to divert differential-mode surges. Use Value: Withstands 600 W pulses without degradation, maintaining <1 μA leakage at 13 V to avoid standby current penalties in always-on systems. | Use Scenario: CAN transceiver power rail protection in door module ECUs subjected to battery disconnect transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on VCC line upstream of LDO regulator to prevent brownout and latch-up. Use Value: Fast <1 ns response ensures clamping occurs before 5 V regulator input exceeds absolute maximum rating during 100 V/10 ms transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG13AHE3/5B | AEC-Q101 qualified; same electrical specs; HE3 suffix denotes AEC-Q101 grade (vs. M3's industrial + halogen-free) | Required for automotive safety-critical modules requiring full AEC-Q101 documentation traceability | Select SMBG13AHE3/5B when full AEC-Q101 test report submission is mandated by OEM tier-1 requirements |
| SMBJ13A-M3 | Same VWM, VBR, VC; SMBJ package (DO-214AB) - larger footprint (0.285" × 0.185") and higher RθJA (80 °C/W vs. 100 °C/W) | Better thermal dissipation in high-ambient industrial settings; less suitable for dense automotive PCBs | Choose SMBJ13A-M3 only if board layout allows larger pad area and thermal management prioritizes junction-to-ambient conduction over space constraints |
Compared with SMBG13AHE3/5B, the SMBG13A-M3/5B offers identical clamping performance in a halogen-free industrial-grade package but lacks full AEC-Q101 certification documentation; versus SMBJ13A-M3, it saves 30% board area and supports tighter automotive layout rules despite slightly lower thermal conductivity.
Availability
SMBG13A-M3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive development, and telecom power supply prototyping requiring stable component supply, halogen-free compliance, and AEC-Q101-aligned reliability.
Supply support for SMBG13A-M3/5B 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability industrial and automotive applications.
The SMBG series was engineered specifically for space-constrained, high-surge automotive and industrial systems requiring AEC-Q101-qualified TVS protection in ultra-low-profile surface-mount packages.
FAQ
What is the clamping voltage of SMBG13A-M3/5B at its rated peak pulse current?
The SMBG13A-M3/5B has a maximum clamping voltage (VC) of 21.5 V at its specified peak pulse current (IPPM) of 27.9 A, measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuits during transient events and is confirmed in Vishay's official datasheet revision 09-Jan-2024, page 2.
Is SMBG13A-M3/5B suitable for automotive applications requiring AEC-Q101 qualification?
SMBG13A-M3/5B is halogen-free and RoHS compliant but is not AEC-Q101 qualified; the HE3/HM3 variants (e.g., SMBG13AHE3/5B) carry full AEC-Q101 certification. The M3 suffix indicates industrial-grade qualification with JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility - suitable for non-safety-critical automotive modules where full AEC-Q101 documentation is not mandated.
What does the "M3" suffix mean in SMBG13A-M3/5B?
The "M3" suffix in SMBG13A-M3/5B denotes halogen-free, RoHS-compliant construction with industrial-grade reliability, including JESD201 Class 2 whisker resistance and compliance with JEDEC moisture sensitivity level (MSL) Level 1 (peak reflow temperature 260 °C). It distinguishes the part from E3 (standard RoHS) and HE3/HM3 (AEC-Q101 qualified) variants within the same SMBG family.
What is the standoff voltage (VWM) and why is it critical for SMBG13A-M3/5B placement?
The standoff voltage (VWM) of SMBG13A-M3/5B is 13 V - the maximum continuous reverse voltage it can block without entering avalanche conduction. This parameter is critical because it must exceed the normal operating voltage of the protected line (e.g., 12 V automotive battery rail) with sufficient margin to avoid leakage-induced power loss or thermal drift, while remaining low enough to ensure timely clamping during transients.
How does the SMBG (DO-215AA) package of SMBG13A-M3/5B compare to SMB (DO-214AA) in layout impact?
The SMBG (DO-215AA) package of SMBG13A-M3/5B measures 0.235" × 0.255", offering a 15% smaller footprint than the SMB (DO-214AA) package (0.265" × 0.235") while maintaining gull-wing leads compatible with standard SMT pick-and-place equipment. Its lower profile and optimized thermal pad layout support higher-density routing in automotive ECUs where board space is constrained.
SMBG13A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 27.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG13A-M3/5B FAQ
1.How can I place an order for SMBG13A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG13A-M3/5B 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 SMBG13A-M3/5B reliable?
The price and inventory of SMBG13A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG13A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG13A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG13A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG13A-M3/5B?
SMBG13A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG13A-M3/5B 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 SMBG13A-M3/5B?
For technical support, including SMBG13A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG13A-M3/5B requirements.
6.How does Aetrix verify that SMBG13A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG13A-M3/5B 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 SMBG13A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG13A-M3/5B?
All SMBG13A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG13A-M3/5B, 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 SMBG13A-M3/5B part is unused and in its original packaging.
Return procedure for SMBG13A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG13A-M3/5B Tags
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