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Vishay General Semiconductor - Diodes Division SMBG13CAHE3/52
- Part No.:
- SMBG13CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG13CAHE3/52.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
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Product details
Overview
SMBG13CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), <1.0 μA reverse leakage at VWM, and 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG13CAHE3/52 datasheet, SMBG13CAHE3/52 pinout, SMBG13CAHE3/52 application, or SMBG13CAHE3/52 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AA mechanical dimensions, bidirectional clamping behavior, and real-world use cases in CAN/LIN bus nodes and 12 V power rail protection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM ratings in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs surges at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" Cu pads) and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system supply rails. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage during 600 W surge; protects downstream ICs rated ≤24 V. |
| IPPM | 27.9 A - Peak pulse current capability with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 immunity. |
| PPPM | 600 W - Peak pulse power rating; defines energy-handling capacity for transient suppression. |
| Leakage (ID) | <1.0 μA at 13 V - Negligible standby current; avoids loading of high-impedance sensor or communication lines. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in engine control units and power converters. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts negative-going surges; forms symmetrical clamping path with Cathode terminal. |
| Cathode | Transient current entry (positive polarity) | Accepts positive-going surges; completes bidirectional conduction path with Anode terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| 600 W peak pulse power | Handles IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 42 Ω load) without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage stress on protected ICs - critical for 12 V logic and CAN transceivers. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at peak 260 °C without popcorn cracking or delamination. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and humidity stress. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, absorbing transients before they reach the IC input stage. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 1/2a/5a conditions while preserving sub-μA bias current requirements of sensor front-ends. | Use Scenario: Safeguarding PLC digital input channels connected to 24 V DC field devices subject to relay contact bounce and cable ESD events. IC Role / Device Role / Timing Role: Standoff voltage clamp on each input channel, shunting surge energy to chassis ground during fast-rising transients. Use Value: Enables >100,000 actuation cycles without degradation; eliminates need for external series resistors or RC filters in cost-sensitive designs. |
| 12 V Power Rail Protection | CAN Bus Node Protection |
Use Scenario: Secondary overvoltage protection on 12 V supply lines feeding microcontrollers and PMICs in infotainment head units. IC Role / Device Role / Timing Role: Parallel-connected TVS that activates only during abnormal overvoltage (>13 V), leaving normal regulation unaffected. Use Value: Limits rail excursions to ≤21.5 V during load dump events, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: Transient suppression on CAN_H/CAN_L differential pair in body control modules exposed to battery disconnect transients and ESD. IC Role / Device Role / Timing Role: Symmetric bidirectional clamp across differential lines, referenced to common-mode ground. Use Value: Preserves CAN signal rise/fall times (<500 ps added capacitance) while meeting ISO 11898-2 EMC immunity 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 |
|---|---|---|---|
| SMBJ13CA | Same VWM/VBR/VC specs but rated for 600 W with larger SMB (DO-214AA) package; RθJA = 85 °C/W vs. 100 °C/W. | Higher thermal mass suits higher ambient temp environments; less suitable for ultra-dense PCB layouts. | Select SMBJ13CA when board space allows and junction temperature margin is critical above 105 °C ambient. |
| 1.5KE13CA | Through-hole TO-218 package; same 13 V VWM but 1500 W PPPM; slower response due to higher junction capacitance (~200 pF). | Used in legacy power supplies and industrial panels where manual assembly and higher surge margin are prioritized. | Choose 1.5KE13CA only for through-hole designs requiring >1 kW surge handling and where layout density is not constrained. |
Compared with SMBJ13CA and 1.5KE13CA, SMBG13CAHE3/52 offers optimal balance of AEC-Q101 compliance, compact DO-215AA footprint, and precise 21.5 V clamping - making it preferred for modern automotive ECUs and space-constrained industrial controllers where automated SMT assembly and thermal management are key.
Availability
SMBG13CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and 12 V power rail safeguarding requiring stable component supply and full traceability.
Supply support for SMBG13CAHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The SMBG series targets high-reliability transient suppression in automotive and industrial systems, engineered specifically to meet AEC-Q101 stress tests and IEC/ISO surge immunity standards without derating.
FAQ
What is the clamping voltage of SMBG13CAHE3/52 and how does it protect downstream circuits?
The SMBG13CAHE3/52 has a maximum clamping voltage (VC) of 21.5 V at 27.9 A peak pulse current. This limits transient overvoltage seen by protected ICs to a safe level well below typical 24 V logic or CAN transceiver absolute maximum ratings. Its low clamping ratio (VC/VBR ≈ 1.43) ensures minimal overshoot during fast 10/1000 μs surges, directly preventing latch-up or gate oxide failure in downstream silicon.
Is SMBG13CAHE3/52 suitable for automotive applications?
Yes, SMBG13CAHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use. It passes temperature cycling, highly accelerated life testing (HALT), and ESD stress per the AEC-Q101 standard. The HE3 suffix denotes RoHS-compliant, AEC-Q101-qualified construction, and its DO-215AA package meets MSL Level 1 for lead-free reflow - making SMBG13CAHE3/52 appropriate for engine control units, body electronics, and ADAS sensor modules.
How does SMBG13CAHE3/52 differ from unidirectional versions like SMBG13AHE3/52?
SMBG13CAHE3/52 is bidirectional, meaning it clamps symmetrically for both positive and negative transients, with identical VBR, VC, and IPPM in either polarity. In contrast, SMBG13AHE3/52 is unidirectional and conducts only in reverse bias - requiring correct cathode orientation and offering no protection against negative surges. SMBG13CAHE3/52 is used where AC-coupled signals or differential buses (e.g., CAN, LIN) demand dual-polarity suppression.
What is the thermal resistance of SMBG13CAHE3/52 and how does it affect PCB layout?
SMBG13CAHE3/52 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. To maintain TJ ≤ 150 °C under worst-case surge duty, designers must ensure adequate copper area and avoid excessive trace length or isolation. Reducing pad size or using thinner copper increases RθJA, potentially causing thermal runaway during repetitive surges.
Does SMBG13CAHE3/52 require polarity marking on the PCB?
No, SMBG13CAHE3/52 does not require polarity marking because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMBG13A), it has no cathode band or orientation dependency - both terminals are functionally identical. This simplifies automated placement and eliminates risk of reverse installation during SMT assembly, which is especially valuable in high-volume automotive manufacturing.
SMBG13CAHE3/52 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG13CAHE3/52 FAQ
1.How can I place an order for SMBG13CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG13CAHE3/52 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 SMBG13CAHE3/52 reliable?
The price and inventory of SMBG13CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG13CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG13CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG13CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG13CAHE3/52?
SMBG13CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG13CAHE3/52 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 SMBG13CAHE3/52?
For technical support, including SMBG13CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG13CAHE3/52 requirements.
6.How does Aetrix verify that SMBG13CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG13CAHE3/52 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 SMBG13CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG13CAHE3/52?
All SMBG13CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG13CAHE3/52, 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 SMBG13CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG13CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG13CAHE3/52 Tags
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