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Vishay General Semiconductor - Diodes Division SMBG24C-E3/5B
- Part No.:
- SMBG24C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24C-E3/5B.pdf
- Description:
- TVS DIODE 24VWM 43VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,931
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Product details
Overview
SMBG24C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤38.9 V at 15.4 A peak surge current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG24C-E3/5B datasheet, SMBG24C-E3/5B pinout, SMBG24C-E3/5B application, or SMBG24C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical VBR, VC, and IPPM specifications for positive and negative transients. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD and inductive switching spikes.
The device meets UL 497B recognition (QVGQ2) and is rated for repetitive 600 W surges at 0.01% duty cycle. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation under sustained transient stress when mounted per recommended 0.2" × 0.2" pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - guaranteed breakdown threshold defining clamping onset |
| VC @ IPPM | ≤38.9 V at 15.4 A - peak clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling with standard 10/1000 µs waveform |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive and industrial environments |
| MSL Level | Level 1 (J-STD-020) - supports lead-free reflow up to 260 °C peak without baking |
Pinout & Package
DO-215AA (SMBG) surface-mount package: gull-wing leads, matte tin-plated, RoHS-compliant, no polarity marking (bi-directional). Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); cathode band omitted per bi-directional designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient clamp node | No polarity - either terminal serves as input/output for bidirectional surge suppression |
| Case (exposed metal slug) | Thermal path and mechanical anchor | Not electrically connected; provides low RθJL = 20 °C/W to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage performance across life cycle |
| 600 W peak pulse power (10/1000 µs) | Handles typical ISO 7637-2 pulse 1/2/5a surges without degradation |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protectors |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT, lightning-induced) |
Applications
| Automotive Sensor Protection | Industrial Digital I/O |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between signal line and ground, responding within <1 ns to transients. Use Value: Limits voltage to ≤38.9 V during 15.4 A surge, preventing damage to 3.3 V/5 V interface ICs while maintaining signal fidelity below 24 V. |
Use Scenario: Guarding PLC digital input modules against field-wiring induced surges from relay coils or motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, operating in parallel with optocoupler input stage. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling robust operation in factory automation environments with frequent switching noise. |
| Telecom Line Interface | Consumer Power Adapter Feedback Loop |
Use Scenario: Safeguarding Ethernet PHY magnetics bias lines and RS-485 transceiver pins against lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary gas discharge tube (GDT), providing fast clamping response. Use Value: Low clamping voltage (≤38.9 V) ensures compliance with 30 V absolute maximum rating of RS-485 receivers while surviving 10/1000 µs 1 kV tests. |
Use Scenario: Protecting optocoupler feedback path in isolated AC/DC adapters from secondary-side transients caused by output short-circuit recovery. IC Role / Device Role / Timing Role: Voltage clamp across TL431 reference input and phototransistor base, stabilizing regulation loop during fault events. Use Value: 24 V VWM aligns with typical 2.5–24 V feedback range; bi-directionality accommodates reverse-polarity transients during startup or fault recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA-E3/5B | Same DO-214AA (SMB) package but slightly higher VC (43.0 V @ 13.9 A); lower PPPM derating above 25 °C due to higher RθJA (125 °C/W) | Less suitable for space-constrained automotive modules where thermal margin is critical | Prefer SMBG24C-E3/5B when board area allows DO-215AA and thermal performance is prioritized |
| SMCJ24CA-E3/57T | Larger DO-214AB (SMC) package; higher PPPM (1500 W); VC = 38.9 V @ 38.9 A; same VWM/VBR range | Used where higher single-pulse energy absorption is required, e.g., main power rail protection | Select SMBG24C-E3/5B for signal-line applications needing compact size and AEC-Q101 validation; choose SMCJ24CA for bulk power clamping |
Compared with SMBJ24CA-E3/5B and SMCJ24CA-E3/57T, the SMBG24C-E3/5B offers optimal balance of AEC-Q101 qualification, low-profile DO-215AA packaging, and superior thermal resistance (100 °C/W vs. 125 °C/W), making it preferred for automotive sensor nodes and dense industrial PCB layouts.
Availability
SMBG24C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial digital I/O hardening, and telecom line interface applications requiring stable component supply, AEC-Q101 compliance, and RoHS-verified traceability.
Supply support for SMBG24C-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, power efficiency, and automotive qualification.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial systems, combining AEC-Q101 validation with optimized thermal performance in the DO-215AA footprint.
FAQ
What is the polarity configuration of SMBG24C-E3/5B?
The SMBG24C-E3/5B is a bi-directional transient voltage suppressor, meaning it has no polarity marking and functions identically in both directions. Unlike uni-directional variants (e.g., SMBG24A), this device clamps voltage transients regardless of polarity - ideal for AC-coupled or differential signal lines where voltage reversal may occur. Its electrical characteristics apply symmetrically across both terminals.
Does SMBG24C-E3/5B meet automotive qualification standards?
Yes, SMBG24C-E3/5B is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. This qualification confirms its suitability for automotive applications such as body control modules, ADAS sensor interfaces, and powertrain subsystems where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage for SMBG24C-E3/5B under surge conditions?
The SMBG24C-E3/5B clamps to a maximum of 38.9 V when subjected to its rated peak pulse current of 15.4 A (10/1000 µs waveform). This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during transient events - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces and analog front-ends.
How does the DO-215AA (SMBG) package of SMBG24C-E3/5B compare thermally to DO-214AA (SMB)?
The DO-215AA (SMBG) package of SMBG24C-E3/5B delivers a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, which is 20% lower than the 125 °C/W typical for DO-214AA (SMB) packages like SMBJ24CA. This improvement stems from enhanced thermal pad design and solder joint geometry, allowing SMBG24C-E3/5B to sustain higher repetitive surge duty cycles without exceeding TJ = 150 °C.
Is SMBG24C-E3/5B compatible with lead-free reflow processes?
Yes, SMBG24C-E3/5B is rated for MSL Level 1 per J-STD-020 and supports lead-free reflow profiles with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards, and the E3 suffix confirms compliance with JESD201 Class 1A whisker testing - ensuring robust interconnect reliability in high-volume SMT assembly.
SMBG24C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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)
SMBG24C-E3/5B FAQ
1.How can I place an order for SMBG24C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24C-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 SMBG24C-E3/5B reliable?
The price and inventory of SMBG24C-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 SMBG24C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG24C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24C-E3/5B?
SMBG24C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24C-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 SMBG24C-E3/5B?
For technical support, including SMBG24C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24C-E3/5B requirements.
6.How does Aetrix verify that SMBG24C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG24C-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 SMBG24C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG24C-E3/5B?
All SMBG24C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24C-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 SMBG24C-E3/5B part is unused and in its original packaging.
Return procedure for SMBG24C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24C-E3/5B Tags
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