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Vishay General Semiconductor - Diodes Division SMB8J13CA-E3/52
- Part No.:
- SMB8J13CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J13CA-E3/52.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,823
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Product details
Overview
SMB8J13CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features a 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage (VC) at 37.2 A peak pulse current (IPPM), 800 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB8J13CA-E3/52 datasheet, SMB8J13CA-E3/52 pinout, SMB8J13CA-E3/52 application, or SMB8J13CA-E3/52 equivalent, key selection criteria include bidirectional clamping behavior, low leakage (<1.0 µA at VWM), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its breakdown threshold (VBR = 14.4–15.9 V at 1.0 mA). Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, enabling consistent clamping performance under repetitive surge stress.
Designed per ANSI/IEEE C62.35 standards, it delivers symmetrical bidirectional protection without polarity dependency-ideal for AC-coupled or floating signal paths. Thermal resistance (RθJA = 72 °C/W) and junction temperature rating (TJ = –55 to +150 °C) support reliable operation in automotive under-hood and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 14.4 V / 15.9 V at 1.0 mA - Ensures precise turn-on threshold with tight manufacturing tolerance |
| VC @ IPPM | 21.5 V at 37.2 A - Limits downstream voltage stress during 800 W transient events |
| IPPM | 37.2 A (10/1000 µs) - Sustains high-current surges without degradation when mounted on 5.0 mm × 5.0 mm pads |
| Leakage (ID) | <1.0 µA at 13 V - Minimizes standby power loss and avoids false triggering in low-power sensor interfaces |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with standard reflow profiles and J-STD-020 MSL Level 1 handling |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Two-terminal device in SMB (DO-214AA) package: anode and cathode terminals are symmetrically arranged with no polarity marking for bidirectional operation. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during either polarity overvoltage event |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode; no color band or marking required for bidirectional types |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and clamping performance across thermal and humidity stress |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during surge events, improving margin for downstream ICs rated to 24 V absolute max |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-defect reliability |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at sensor connector to clamp fast-rising spikes before reaching ADC input or signal conditioner. Use Value: Maintains signal integrity by limiting transient voltage to ≤21.5 V while supporting full automotive temperature range (–40 to +125 °C ambient). | Use Scenario: Safeguarding CANH/CANL pins of ISO 11898-2 transceivers against ESD and coupled surges in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus pair to absorb common-mode and differential transients without disrupting DC bias. Use Value: Prevents transceiver latch-up or damage during 800 W surge events while adding <1.0 pF capacitance at 0 V bias (per typical curve Fig. 4). |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level protection for USB 2.0 data lines in set-top boxes subjected to system-level IEC 61000-4-2 ESD events. IC Role / Device Role / Timing Role: Low-capacitance shunt device located after primary polymer-based TVS to handle residual high-energy pulses. Use Value: Clamps 15 kV contact discharge to <21.5 V within <1 ns, preserving signal rise time due to minimal parasitic capacitance. | Use Scenario: Primary surge protection on twisted-pair DSL subscriber lines exposed to lightning-induced surges in outdoor cabinets. IC Role / Device Role / Timing Role: High-power bidirectional suppressor installed at line interface to divert >37 A surges away from line driver/receiver ICs. Use Value: Withstands repeated 10/1000 µs surges up to 800 W without parameter shift, verified per Telcordia GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-E3/52 | 1000 W unidirectional rating vs. 800 W bidirectional; same VWM/VC but asymmetric conduction | Requires polarity-aware layout; unsuitable for AC or floating lines | Select only if circuit topology guarantees unidirectional surge polarity and higher power margin is needed |
| SMCJ13CA-E3/52 | Larger SMC (DO-214AB) package; 1500 W rating; RθJA = 35 °C/W vs. 72 °C/W | Higher thermal mass supports longer surge duration but occupies 2.5× PCB area | Prefer when sustained surge energy exceeds SMB8J13CA-E3/52 capability or board space allows larger footprint |
Compared with SMBJ13CA-E3/52 and SMCJ13CA-E3/52, SMB8J13CA-E3/52 offers optimal balance of bidirectional protection, compact SMB footprint, and automotive qualification-making it the preferred choice for space-constrained, polarity-agnostic, and AEC-Q101–mandated designs.
Availability
SMB8J13CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB ports, and telecom DSL line protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB8J13CA-E3/52 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 reliability, efficiency, and application-specific optimization.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, surface-mount surge suppression in automotive, industrial, and communications infrastructure where bidirectional clamping and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of SMB8J13CA-E3/52 and under what test condition is it specified?
The maximum clamping voltage (VC) of SMB8J13CA-E3/52 is 21.5 V, measured at a peak pulse current (IPPM) of 37.2 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case clamping performance when mounted on the recommended 5.0 mm × 5.0 mm copper pad layout.
Is SMB8J13CA-E3/52 suitable for automotive applications, and what qualification does it hold?
Yes, SMB8J13CA-E3/52 is explicitly qualified to AEC-Q101 for automotive use. The "HE3" suffix variant (e.g., SMB8J13CAHE3) carries this qualification, and the -E3/52 packaging denotes RoHS-compliant commercial grade with AEC-Q101 validation confirmed in Vishay document 88422. It is approved for under-hood and cabin modules requiring zero-defect reliability.
How does the bidirectional nature of SMB8J13CA-E3/52 affect its circuit implementation compared to unidirectional TVS diodes?
SMB8J13CA-E3/52 requires no polarity orientation during placement-its symmetrical structure protects both positive and negative transients across the same two terminals. Unlike unidirectional TVS diodes such as SMBJ13CA-E3/52, it eliminates risk of reverse installation and enables direct placement across AC-coupled, differential, or floating signal paths without additional blocking components.
What is the leakage current specification for SMB8J13CA-E3/52 at its stand-off voltage?
SMB8J13CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its rated stand-off voltage (VWM) of 13 V and tested at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes power loss in battery-operated systems.
Does SMB8J13CA-E3/52 require special handling or baking prior to reflow soldering?
No-SMB8J13CA-E3/52 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be processed using standard Pb-free or SnPb reflow profiles without pre-baking. Its moisture sensitivity is mitigated by the molded SMB package and robust lead finish, simplifying SMT line integration.
SMB8J13CA-E3/52 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 37.2A
- Power - Peak Pulse:
- 800W
- 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 (SMB)
SMB8J13CA-E3/52 FAQ
1.How can I place an order for SMB8J13CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J13CA-E3/52 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 SMB8J13CA-E3/52 reliable?
The price and inventory of SMB8J13CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J13CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J13CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J13CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J13CA-E3/52?
SMB8J13CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J13CA-E3/52 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 SMB8J13CA-E3/52?
For technical support, including SMB8J13CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J13CA-E3/52 requirements.
6.How does Aetrix verify that SMB8J13CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J13CA-E3/52 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 SMB8J13CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J13CA-E3/52?
All SMB8J13CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J13CA-E3/52, 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 SMB8J13CA-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J13CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J13CA-E3/52 Tags
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