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Vishay General Semiconductor - Diodes Division SMBG13CA-E3/5B
- Part No.:
- SMBG13CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG13CA-E3/5B.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,563
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Product details
Overview
SMBG13CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 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), clamping voltage of 21.5 V at 27.9 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG13CA-E3/5B datasheet, SMBG13CA-E3/5B pinout, SMBG13CA-E3/5B application, or SMBG13CA-E3/5B equivalent, this device is selected for high-reliability ESD and surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line drivers where bidirectional clamping, low leakage (<1.0 μA at VWM), and MSL Level 1 solderability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, IPPM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive 10/1000 μs transients up to 0.01% duty cycle.
The device is rated for TJ = –55 °C to +150 °C, features RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads), and meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance - confirming suitability for harsh-environment automotive and industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - Tight breakdown tolerance ensures predictable turn-on during fast transients. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamping voltage limits downstream IC stress during 600 W surge events. |
| IPPM | 27.9 A - Peak pulse current capability with 10/1000 μs waveform; derates above 25 °C per Fig. 2. |
| Leakage ID | <1.0 μA at 13 V - Minimal standby power loss and signal integrity impact on high-impedance lines. |
| Package | SMBG (DO-215AA) - Surface-mount, low-profile (1.96 mm max height), RoHS-compliant, MSL Level 1 (260 °C reflow). |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMBG (DO-215AA), bidirectional configuration - no polarity marking; symmetrical terminals with cathode/anode roles interchangeable per direction of transient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no band marking required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing symmetrical clamping path; enables protection on AC-coupled or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy surges common in automotive load-dump and inductive switching without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot during clamping - critical for protecting 15 V-tolerant interface ICs. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning or special handling. |
| UL 497B recognized (QVGQ2) | Validated for use in telecom and industrial protectors requiring third-party safety certification. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector entry point to shunt surge energy before it reaches MCU or signal conditioner. Use Value: AEC-Q101 qualification and 21.5 V clamping ensure compliance with automotive EMC requirements while preserving signal fidelity below 13 V. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., THVD1550) against lightning-induced surges on field wiring in factory automation. IC Role / Device Role / Timing Role: Line-side TVS connected between A/B differential pair and ground to clamp common-mode transients without disrupting DC bias. Use Value: Symmetrical VBR and low capacitance (<50 pF typical) prevent data corruption at 250 kbps+ signaling rates. |
| Telecom DSL Line Driver | Consumer USB Port ESD |
Use Scenario: Overvoltage protection for ADSL/VDSL line drivers exposed to induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at line interface, upstream of transformer and driver IC. Use Value: 600 W rating and UL 497B recognition meet GR-1089-CORE and ITU-T K.20/K.21 immunity standards. |
Use Scenario: Secondary-level ESD protection for USB 2.0 D+/D− lines in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Fast-response TVS placed after series impedance to absorb ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-1 ns response time and <1.0 μA leakage preserve signal rise time and reduce standby current drain. |
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-E3/5B | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA); 2.4 mm height vs. SMBG's 1.96 mm. | SMB footprint requires PCB pad revision; slightly higher RθJA (110 °C/W) reduces thermal margin in dense layouts. | Select when legacy SMB layout exists or when higher mechanical robustness is prioritized over profile. |
| 1.5KE13CA | Higher PPPM = 1500 W, axial DO-15 package; VC = 22.5 V at 66.7 A; no AEC-Q101 or MSL Level 1 rating. | Through-hole mounting only; unsuitable for automated SMT lines or automotive under-hood environments. | Choose only for cost-sensitive, non-automotive, low-volume prototyping where manual assembly is acceptable. |
Compared with SMBJ13CA-E3/5B and 1.5KE13CA, SMBG13CA-E3/5B delivers optimal balance of ultra-low profile, AEC-Q101 compliance, and industry-standard SMT process compatibility - making it the preferred choice for space-constrained automotive and industrial PCBs requiring zero-layout change from DO-215AA.
Availability
SMBG13CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 gateways, and telecom line card designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG13CA-E3/5B 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 SMBG TransZORB® series targets high-surge, high-reliability applications in automotive, industrial, and telecom infrastructure - engineered for consistent clamping performance under thermal stress and repetitive transient exposure.
FAQ
What is the maximum clamping voltage of SMBG13CA-E3/5B under a 10/1000 μs surge?
The SMBG13CA-E3/5B clamps to 21.5 V at its rated peak pulse current of 27.9 A (10/1000 μs waveform). This value is measured per Figure 1 in Vishay document 88456 and represents the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG13CA-E3/5B suitable for automotive applications?
Yes, SMBG13CA-E3/5B is AEC-Q101 qualified (per ordering code HE3/HM3 variants), and the E3/5B variant shares identical electrical and thermal specs. It is explicitly validated for automotive use cases including sensor protection, infotainment interfaces, and body control modules where temperature cycling, humidity resistance, and surge immunity are mandated.
Does SMBG13CA-E3/5B have polarity markings on the package?
No - SMBG13CA-E3/5B is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows either terminal to serve as anode or cathode depending on transient polarity, simplifying layout for AC-coupled or floating signal lines.
What is the thermal resistance of SMBG13CA-E3/5B in standard mounting conditions?
The SMBG13CA-E3/5B 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, as specified in Vishay document 88456. This value assumes standard FR-4 PCB with 1 oz copper and no internal planes - derating applies above 25 °C ambient.
How does SMBG13CA-E3/5B differ from unidirectional SMBG13A-E3/5B?
SMBG13CA-E3/5B is bidirectional with matched VBR and VC in both directions, while SMBG13A-E3/5B is unidirectional (cathode-banded) and conducts only in reverse. The "CA" suffix denotes bidirectional functionality - essential for protecting AC signals, differential buses, or floating grounds where polarity reversal occurs.
SMBG13CA-E3/5B 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG13CA-E3/5B FAQ
1.How can I place an order for SMBG13CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG13CA-E3/5B 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 SMBG13CA-E3/5B reliable?
The price and inventory of SMBG13CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG13CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG13CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG13CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG13CA-E3/5B?
SMBG13CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG13CA-E3/5B 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 SMBG13CA-E3/5B?
For technical support, including SMBG13CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG13CA-E3/5B requirements.
6.How does Aetrix verify that SMBG13CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG13CA-E3/5B 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 SMBG13CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG13CA-E3/5B?
All SMBG13CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG13CA-E3/5B, 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 SMBG13CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG13CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG13CA-E3/5B Tags
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