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Vishay General Semiconductor - Diodes Division SMBJ13A-M3/52
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- Part No.:
- SMBJ13A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13A-M3/52.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,618
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Product details
Overview
SMBJ13A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of DC power rails and signal lines. It features a 13 V standoff voltage (VWM), 14.4–15.9 V breakdown range at 1 mA, clamps transients to ≤21.5 V at 27.9 A (10/1000 µs), and delivers 600 W peak pulse power in the SMB (DO-214AA) package - widely deployed in industrial motor drives and automotive body control modules.
For engineers reviewing the SMBJ13A-M3/52 datasheet, SMBJ13A-M3/52 pinout, SMBJ13A-M3/52 application, or SMBJ13A-M3/52 equivalent, this page provides verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, and direct alternatives qualified for commercial-grade surge suppression in 12 V–24 V systems.
Technical Context
This TVS diode operates as a unidirectional clamping device: reverse-biased during normal operation with <1.0 µA leakage at 13 V, then avalanche-conducting within nanoseconds when transient voltage exceeds its breakdown threshold. Its low incremental surge resistance (typical Rdyn ≈ 0.3 Ω) ensures minimal voltage overshoot during high-current surges.
Thermally, it uses a glass-passivated junction mounted in an SMB package with RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and maximum junction temperature of +150 °C. The M3 suffix confirms halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected circuit's nominal rail. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - Confirmed breakdown window; defines minimum trigger margin above VWM. |
| VC @ IPPM | ≤21.5 V at 27.9 A (10/1000 µs) - Clamped voltage seen by downstream ICs during worst-case surge; determines safe margin for 15 V logic. |
| PPPM | 600 W - Peak pulse power handling per single transient; supports repeated 0.01% duty cycle surges without degradation. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); validates robustness against inrush or fault currents. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMD outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference terminal | Connected to ground or return path; forms current loop during clamping event. |
| Cathode (banded end) | High-side surge input terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables reliable suppression of ISO 7637-2 Pulse 1/2a/5a transients in automotive 12 V systems without thermal runaway. |
| Clamping voltage ≤21.5 V at 27.9 A | Provides ≥3.5 V headroom for 18 V-rated microcontrollers and CAN transceivers operating on 12 V supplies. |
| Glass-passivated junction | Ensures stable VBR and low leakage (<1 µA) across -55 °C to +150 °C; eliminates parameter drift in harsh environments. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without popcorn cracking or delamination; no pre-bake required. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects 12 V supply inputs of BCM microcontrollers from load-dump transients (ISO 7637-2 Pulse 5a) and inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between fused 12 V rail and LDO input; responds in <1 ns to clamp surges before LDO overvoltage shutdown. Use Value: Limits voltage excursion to ≤21.5 V, preserving LDO integrity and preventing MCU brownout or latch-up during 100 V/50 ms load dump events. |
Use Scenario: Shields 24 V digital input optocoupler circuits from field-wiring induced surges (IEC 61000-4-5 Level 3) in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge shunt on 24 V input line upstream of series resistor and opto-LED; conducts >27 A transient current away from sensitive LED junction. Use Value: Maintains optocoupler forward voltage compliance by clamping to ≤21.5 V, ensuring consistent CTR and avoiding LED degradation during repeated 2 kV surges. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Board |
|
Use Scenario: Guards AC/DC adapter output rails against lightning-induced surges coupled via shared building wiring (IEC 61000-4-5 1.2/50 µs). IC Role / Device Role / Timing Role: Secondary-level TVS on regulated 12 V output, coordinated with primary-side MOV and Y-cap filtering to meet EN 61000-4-5 immunity. Use Value: Absorbs residual 600 W energy not filtered upstream, limiting post-regulator voltage to safe levels for downstream PMICs and memory ICs. |
Use Scenario: Safeguards H-bridge gate driver ICs from back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Localized TVS across motor terminals and VDD pins of half-bridge drivers; activated within nanoseconds of commutation-induced dV/dt. Use Value: Prevents gate oxide rupture in MOSFET drivers by clamping flyback voltages to ≤21.5 V, extending driver lifetime in high-cycle appliance applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-E3/52 | Same electrical specs and SMB package; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Approved for commercial-grade industrial use where halogen content is unrestricted; not suitable for automotive or green-certified products. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 qualification is unnecessary. |
| SMBJ13AHM3_B/H | Identical electrical and thermal specs; adds AEC-Q101 qualification and enhanced reliability screening (HTOL, TC, UHAST). | Qualified for automotive powertrain and chassis applications requiring zero-defect reliability and extended temperature validation (-40 °C to +125 °C case). | Choose for automotive OEM designs needing formal qualification evidence and long-term supply assurance beyond commercial grade. |
Compared with SMBJ13A-M3/52, the E3 variant offers identical surge performance at lower cost but lacks halogen-free compliance, while the HM3_B/H version adds AEC-Q101 validation for mission-critical automotive use - neither is pin-compatible drop-in replacements without reviewing qualification and material declarations.
Availability
SMBJ13A-M3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power front-ends, and consumer appliance designs requiring stable component supply with halogen-free compliance and MSL Level 1 assembly support.
Supply support for SMBJ13A-M3/52 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, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-power, and automotive-qualified components.
The SMBJ series is engineered for robust transient suppression in demanding DC power and signal line applications, balancing high pulse power, fast response, and standardized SMD packaging for automated manufacturing.
FAQ
What is the maximum clamping voltage of SMBJ13A-M3/52 under standard test conditions?
The SMBJ13A-M3/52 has a maximum clamping voltage (VC) of 21.5 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 27.9 A. This value is measured per ANSI/IEEE C62.35 and reflects the actual voltage imposed on protected circuitry during surge events - critical for verifying margin against downstream IC absolute maximum ratings. The SMBJ13A-M3/52 maintains this clamping performance across its full operating temperature range.
Does SMBJ13A-M3/52 meet automotive qualification standards?
No, SMBJ13A-M3/52 is a commercial-grade part with halogen-free RoHS compliance and MSL Level 1 reflow rating, but it is not AEC-Q101 qualified. For automotive applications requiring formal qualification, Vishay offers the SMBJ13AHM3_B/H variant, which undergoes extended reliability testing including HTOL, temperature cycling, and unbiased HAST. The SMBJ13A-M3/52 remains suitable for non-safety-critical automotive subsystems where qualification is not mandated.
How does the M3 suffix affect the construction and compliance of SMBJ13A-M3/52?
The M3 suffix on SMBJ13A-M3/52 indicates halogen-free, RoHS-compliant construction using bromine- and chlorine-free flame retardants in the molding compound, meeting IPC-1752A and EU Directive 2015/863 requirements. It also certifies compliance with JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow profile (260 °C peak). This distinguishes it from the E3 suffix, which is RoHS-compliant but not halogen-free.
What is the thermal resistance from junction to ambient for SMBJ13A-M3/52 in standard mounting?
The SMBJ13A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per JEDEC standards. This value governs steady-state power dissipation limits and transient thermal response - for example, at 5.0 W continuous power (PD), junction temperature rise is ~500 °C above ambient, confirming that SMBJ13A-M3/52 is intended for pulsed, not continuous, power dissipation.
Can SMBJ13A-M3/52 be used in bidirectional protection applications?
No, SMBJ13A-M3/52 is strictly a unidirectional TVS diode, identified by its cathode band marking and specified breakdown only in reverse bias. For bidirectional protection, Vishay offers the SMBJ13CA variant (e.g., SMBJ13CA-M3/52), which provides symmetrical clamping in both polarities. Using SMBJ13A-M3/52 in bidirectional circuits risks forward conduction and failure during negative transients - always match device polarity to system surge directionality.
SMBJ13A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ13A-M3/52 FAQ
1.How can I place an order for SMBJ13A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13A-M3/52 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 SMBJ13A-M3/52 reliable?
The price and inventory of SMBJ13A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ13A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13A-M3/52?
SMBJ13A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13A-M3/52 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 SMBJ13A-M3/52?
For technical support, including SMBJ13A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13A-M3/52 requirements.
6.How does Aetrix verify that SMBJ13A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ13A-M3/52 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 SMBJ13A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ13A-M3/52?
All SMBJ13A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13A-M3/52, 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 SMBJ13A-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ13A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13A-M3/52 Tags
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