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Vishay General Semiconductor - Diodes Division SMBJ13CAHM3_B/H
- Part No.:
- SMBJ13CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CAHM3_B/H.pdf
- Description:
- 600W,13V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,601
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Product details
Overview
SMBJ13CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 13 V standoff voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current, and 600 W peak pulse power rating with a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ13CAHM3_B/H datasheet, SMBJ13CAHM3_B/H pinout, SMBJ13CAHM3_B/H application, or SMBJ13CAHM3_B/H equivalent, key selection criteria include bidirectional transient suppression capability, 21.5 V clamping performance at rated surge current, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (HM3 suffix), and AEC-Q101 qualification readiness via HM3_X variant coding.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling robust protection against ESD, lightning-induced surges, and inductive switching transients without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), while the low incremental surge resistance supports consistent clamping under repetitive 10/1000 µs pulses at 0.01% duty cycle.
The SMBJ13CAHM3_B/H is thermally rated for TJ = –55 °C to +150 °C, with RθJA = 100 °C/W and RθJL = 20 °C/W, and is optimized for automated SMT placement on standard PCB copper pads (0.2" × 0.2"). Its unmarked bidirectional body eliminates polarity orientation concerns during assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 14.4–15.9 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 21.5 V at IPPM = 27.9 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines safe stress level for downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling per IEEE C62.35 10/1000 µs waveform; validates protection against common surge standards. |
| IPPM (Peak Pulse Current) | 27.9 A - Maximum non-repetitive surge current supported at rated clamping voltage; sets minimum trace/solder joint robustness requirements. |
| TJmax | +150 °C - Maximum junction temperature; enables operation in high-ambient environments like industrial motor drives or outdoor telecom enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm max length, 4.06 mm max width, and 2.20 mm max height; compatible with JEDEC MS-012AC. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional operation | Enables clamping conduction during either polarity of transient event; no fixed DC polarity required in circuit layout. |
| Cathode | Current exit terminal in forward bias; symmetrical with anode in bidirectional operation | Provides identical clamping behavior as Anode under reverse transient; eliminates need for orientation-aware placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-earth) surge immunity testing. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for industrial and automotive supply chains without compromising thermal or electrical performance. |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow at peak temperature up to 260 °C - simplifies manufacturing flow and reduces bake requirements. |
| AEC-Q101 qualification ready | Base HM3_X variants are qualified for automotive applications; this part shares identical die and construction with qualified versions. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback signal lines in variable-frequency drives exposed to inductive kickback from contactor switching. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting transient excursions to ≤21.5 V during 27.9 A surge events. Use Value: Prevents latch-up or oxide damage in isolated gate drivers (e.g., Si823x) and ADC front-ends by holding rail voltage within safe operating area. |
Use Scenario: Shielding LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Fast-response (<1 ns) symmetrical clamping element placed directly at connector interface. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (75 V/300 ms) events without requiring series impedance or timing delays. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 48 V DC input rails of PoE-powered switches and base stations. IC Role / Device Role / Timing Role: Standoff-rated (13 V) TVS absorbing induced surges from nearby AC mains coupling or lightning induction. Use Value: Limits voltage overshoot to <22 V during 600 W transients, preventing damage to DC-DC controllers and PMICs downstream. |
Use Scenario: Bidirectional surge guard on USB-C CC and VCONN lines subject to ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) clamping diode placed adjacent to connector. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) without distorting high-speed CC logic signaling due to symmetrical low-leakage design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-E3/52 | RoHS-compliant (E3), not halogen-free; commercial grade only; same VWM, VBR, VC, and PPPM. | Lacks halogen-free certification and AEC-Q101 qualification path; suitable for non-automotive industrial use. | Select when halogen-free content is not mandated and cost optimization is prioritized over extended qualification scope. |
| SMBJ13CAHM3_B/I | Identical electrical specs and construction; differs only in packaging - 3200-unit 13" tape-and-reel vs. 750-unit 7" reel (B/H). | No functional or application difference; purely logistics-driven choice based on production volume and SMT feeder compatibility. | Choose for high-volume automated assembly where larger reels reduce changeover frequency and improve line uptime. |
Compared with SMBJ13CAHM3_B/H, the E3 variant trades halogen-free compliance for lower unit cost in non-regulated environments, while the HM3_B/I offers identical performance in higher-reel-volume packaging - enabling scalable procurement without redesign or validation overhead.
Availability
SMBJ13CAHM3_B/H is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom power supply input, and consumer USB-C port protection requiring stable component supply across long-lifecycle programs.
Supply support for SMBJ13CAHM3_B/H 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 reliability, power efficiency, and automotive-grade qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive electronics, and infrastructure equipment where robustness and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ13CAHM3_B/H at its rated peak pulse current?
The SMBJ13CAHM3_B/H has a maximum clamping voltage (VC) of 21.5 V at its rated peak pulse current (IPPM) of 27.9 A, measured using the standardized 10/1000 µs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuits during worst-case transient events and is confirmed in the Vishay SMBJ5.0A–SMBJ188A datasheet revision 09-Jan-2024, page 2. The SMBJ13CAHM3_B/H maintains this clamping performance across its full operating temperature range.
Is SMBJ13CAHM3_B/H suitable for automotive applications?
SMBJ13CAHM3_B/H uses the HM3 suffix indicating halogen-free, RoHS-compliant construction and is built on the same die and process as AEC-Q101-qualified variants (denoted HM3_X). While SMBJ13CAHM3_B/H itself is not individually certified, its design lineage and material compliance align with automotive stress requirements. For production automotive use, specify SMBJ13CAHM3_B/A (where "A" denotes AEC-Q101 qualification); the SMBJ13CAHM3_B/H serves as a drop-in-compatible commercial-grade alternative during prototyping and industrial deployment.
How does the bidirectional nature of SMBJ13CAHM3_B/H affect PCB layout?
The SMBJ13CAHM3_B/H has no polarity marking and functions identically in both directions, eliminating orientation constraints during PCB placement. Unlike unidirectional TVS diodes that require cathode alignment toward the protected rail, the SMBJ13CAHM3_B/H can be placed symmetrically across differential lines, AC-coupled paths, or floating interfaces without risk of reverse-bias failure. This simplifies layout, reduces assembly errors, and supports compact routing in space-constrained applications such as USB-C connectors or isolated CAN transceivers.
What is the maximum operating temperature for SMBJ13CAHM3_B/H?
The SMBJ13CAHM3_B/H is rated for an operating junction temperature (TJ) range of –55 °C to +150 °C, with thermal resistance values of RθJA = 100 °C/W and RθJL = 20 °C/W. This allows reliable operation in high-ambient environments such as under-hood automotive modules, industrial inverters, or outdoor telecom cabinets. Derating curves in the Vishay datasheet confirm usable power dissipation down to 50% at 125 °C ambient when mounted on recommended 0.2" × 0.2" copper pads - ensuring sustained performance of SMBJ13CAHM3_B/H in thermally demanding designs.
Does SMBJ13CAHM3_B/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBJ13CAHM3_B/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be subjected to standard lead-free reflow profiles without baking or dry-pack requirements, supporting uninterrupted SMT production. The device's molding compound complies with UL 94 V-0 flammability rating, and its matte tin-plated leads ensure solderability per J-STD-002 and JESD 22-B102 - all verified for the HM3 variant in the official Vishay documentation for SMBJ5.0A–SMBJ188A.
SMBJ13CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ13CAHM3_B/H FAQ
1.How can I place an order for SMBJ13CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CAHM3_B/H 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 SMBJ13CAHM3_B/H reliable?
The price and inventory of SMBJ13CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ13CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CAHM3_B/H?
SMBJ13CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CAHM3_B/H 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 SMBJ13CAHM3_B/H?
For technical support, including SMBJ13CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ13CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ13CAHM3_B/H 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 SMBJ13CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ13CAHM3_B/H?
All SMBJ13CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CAHM3_B/H, 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 SMBJ13CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ13CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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