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Vishay General Semiconductor - Diodes Division SMBJ13AHM3_B/I
- Part No.:
- SMBJ13AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13AHM3_B/I.pdf
- Description:
- 600W,13V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,945
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Product details
Overview
SMBJ13AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage at 27.9 A peak pulse current (10/1000 μs), and 600 W peak pulse power capability - enabling reliable surge suppression in automotive and industrial control interfaces.
For engineers reviewing the SMBJ13AHM3_B/I datasheet, SMBJ13AHM3_B/I pinout, SMBJ13AHM3_B/I application, or SMBJ13AHM3_B/I equivalent, this device is selected for high-reliability transient protection where low clamping voltage, fast response (<1 ns), and AEC-Q101 qualification are required in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 14.4–15.9 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable leakage performance (<1.0 μA at 13 V) and long-term reliability under repetitive transients.
Thermally, it delivers 5.0 W steady-state power dissipation on infinite heatsink at 50 °C and supports junction temperatures up to +150 °C. Its RθJA of 100 °C/W and RθJL of 20 °C/W define thermal limits for layout-dependent derating in real-world mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail voltage. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown threshold range defining turn-on consistency across production lots. |
| VC @ IPPM | 21.5 V at 27.9 A (10/1000 μs) - Clamping voltage limiting downstream IC stress during 600 W surge events. |
| PPPM | 600 W - Peak transient energy absorption capacity per IEC 61000-4-5 Level 4 compliance testing. |
| ID @ VWM | ≤1.0 μA - Ultra-low reverse leakage ensuring minimal standby power loss in battery-powered systems. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without thermal shutdown. |
| Package | SMB (DO-214AA) - Surface-mount footprint (5.21 mm × 4.06 mm) compatible with automated assembly and IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge or ESD events. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanches into low-impedance state when Vreverse > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD. |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-201 Class 2 whisker resistance and global environmental compliance mandates. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 combination wave surges up to ±1 kV (500 Ω source) without degradation. |
| Low clamping ratio (VC/VWM = 1.65) | Minimizes voltage overshoot during transients, protecting 15 V-tolerant ICs such as CAN transceivers and microcontrollers. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture-related popcorning or delamination. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and LDO input to limit transient excursions. Use Value: Clamps 12 V rail to ≤21.5 V during 600 W surges, preventing damage to downstream 15 V-rated regulators and MCU power domains. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface to shunt transients before reaching op-amp inputs. Use Value: Sub-1 nS response time and <1.0 μA leakage preserve signal integrity and measurement accuracy in precision 4–20 mA loops. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Line Protection |
|
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary TVS stage upstream of DC-DC converter, sized for 600 W surge handling per IEEE 802.3bt. Use Value: Withstands repeated 10/1000 μs surges up to 27.9 A while maintaining VC ≤21.5 V - critical for sustaining converter enable thresholds. |
Use Scenario: Adding secondary-level surge immunity to USB-C VBUS lines in portable docking stations. IC Role / Device Role / Timing Role: Secondary clamp after primary fuse and common-mode choke, targeting fast ESD (IEC 61000-4-2 ±15 kV). Use Value: Halogen-free construction and MSL Level 1 ensure compatibility with consumer-grade reflow processes and sustainability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13AHE3_B/I | Same electrical specs and SMB package, but RoHS-compliant commercial grade (non-AEC-Q101). | Lacks automotive qualification; suitable for industrial/commercial designs not requiring AEC validation. | Select when AEC-Q101 is not mandated and cost optimization is prioritized. |
| SMAJ13A-HF | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W), same VWM/VBR. | Reduced surge margin and thermal performance; limited to lower-energy transients or cooler ambient conditions. | Choose only if board space is critical and surge threat level is ≤400 W (e.g., non-automotive IoT endpoints). |
Compared with SMBJ13AHM3_B/I, SMBJ13AHE3_B/I offers identical protection performance without automotive qualification, while SMAJ13A-HF trades 33 % lower surge rating and inferior thermal behavior for smaller size - making SMBJ13AHM3_B/I the optimal choice for AEC-Q101–mandated or high-energy industrial applications.
Availability
SMBJ13AHM3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and USB-C PD accessories requiring stable component supply with full traceability and lifecycle support.
Supply support for SMBJ13AHM3_B/I 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 reliability and application-specific performance.
The SMBJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 600 W surge resilience are mandatory.
FAQ
What is the clamping voltage of SMBJ13AHM3_B/I under a 10/1000 μs surge?
The SMBJ13AHM3_B/I has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 27.9 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ13AHM3_B/I qualified for automotive applications?
Yes, SMBJ13AHM3_B/I is AEC-Q101 qualified, as confirmed in the Vishay ordering information table (page 3, footnote 1) and mechanical data section. The "HM3" suffix denotes halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing - making SMBJ13AHM3_B/I suitable for under-hood and chassis-mounted automotive modules including body control units and ADAS sensor interfaces.
What does the "B/I" suffix mean in SMBJ13AHM3_B/I?
The "B/I" suffix in SMBJ13AHM3_B/I indicates packaging configuration: "B" denotes the revision code (per Vishay's naming convention), and "I" specifies 13-inch diameter tape-and-reel delivery containing 3200 units. This format aligns with EIA-481 standards and enables compatibility with high-speed pick-and-place equipment used in volume manufacturing of automotive and industrial PCBs.
How does SMBJ13AHM3_B/I differ from bidirectional variants like SMBJ13CA?
SMBJ13AHM3_B/I is unidirectional and features polarity marking (cathode band), supporting DC rail protection where reverse conduction must be blocked. In contrast, SMBJ13CA is bidirectional with symmetric clamping in both directions and no polarity marking - suited for AC-coupled or differential signal lines. Electrical parameters including VBR, VC, and PPPM are identical, but circuit integration differs fundamentally due to polarity constraints.
What is the maximum operating temperature for SMBJ13AHM3_B/I?
The SMBJ13AHM3_B/I has a specified operating junction temperature range of –55 °C to +150 °C, per the "Maximum Ratings" table in Vishay document 88392. This allows deployment in extreme environments such as engine compartments, industrial motor drives, and outdoor telecom cabinets - provided PCB thermal design maintains junction temperature within this limit using appropriate copper pour and airflow.
SMBJ13AHM3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ13AHM3_B/I FAQ
1.How can I place an order for SMBJ13AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13AHM3_B/I 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 SMBJ13AHM3_B/I reliable?
The price and inventory of SMBJ13AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13AHM3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ13AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13AHM3_B/I?
SMBJ13AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13AHM3_B/I 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 SMBJ13AHM3_B/I?
For technical support, including SMBJ13AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13AHM3_B/I requirements.
6.How does Aetrix verify that SMBJ13AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ13AHM3_B/I 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 SMBJ13AHM3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ13AHM3_B/I?
All SMBJ13AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13AHM3_B/I, 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 SMBJ13AHM3_B/I part is unused and in its original packaging.
Return procedure for SMBJ13AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13AHM3_B/I Tags
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