My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG24CA-M3/52
- Part No.:
- SMBG24CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24CA-M3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,193
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG24CA-M3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 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), clamping voltage of 38.9 V at 15.4 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG24CA-M3/52 datasheet, SMBG24CA-M3/52 pinout, SMBG24CA-M3/52 application, or SMBG24CA-M3/52 equivalent, key selection criteria include bidirectional surge suppression capability, low clamping ratio (VC/VBR ≈ 1.4), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on PCBs handling inductive switching transients.
Technical Context
This TVS operates symmetrically in both directions, enabling protection of AC-coupled or differential signal lines without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports effective energy diversion during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a).
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, making it suitable for high-reliability industrial and automotive environments where thermal management under repetitive surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - Confirmed breakdown range ensures predictable turn-on across production lot; bidirectional symmetry verified. |
| VC @ IPPM | 38.9 V at 15.4 A - Clamping voltage limits downstream IC stress during 600 W transient; clamping ratio = 1.45 supports robust protection margin. |
| PPPM | 600 W (10/1000 µs) - Peak surge power rating validated per IEC 61000-4-5; supports repetitive 0.01% duty cycle surges. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered systems. |
| TJ max | +150 °C - Enables operation in under-hood automotive or high-ambient industrial enclosures without derating. |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic modules requiring zero-failure-rate reliability under temperature cycling and humidity testing. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing lead frame with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Accepts surge current during positive voltage excursion; symmetrical with cathode for bidirectional conduction. |
| Cathode | Transient current entry (negative half-cycle) | Accepts surge current during negative voltage excursion; identical electrical behavior to anode due to bidirectional design. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., CAN, RS-485), or ungrounded sensor interfaces without polarity concerns. |
| 600 W peak pulse power | Handles high-energy transients such as load dump (ISO 16750-2) or inductive kickback in automotive power distribution modules. |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, ADAS sensors, and infotainment systems requiring long-term field reliability. |
| Halogen-free & RoHS compliant (M3) | Meets environmental compliance requirements for global OEM supply chains and supports lead-free reflow profiles up to 260 °C (MSL Level 1). |
| Low clamping voltage (38.9 V) | Keeps protected circuit nodes below 40 V during 15.4 A surge, safeguarding 3.3 V/5 V/12 V logic and analog front-ends. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in vehicle ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤38.9 V during 600 W surges, preventing latch-up or permanent damage to downstream 36 V-rated components. | Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional shunt protector on 4–20 mA or 0–10 V output lines exposed to ESD and cable discharge events. Use Value: Sub-1 µA leakage avoids measurement offset; symmetrical clamping preserves signal polarity integrity during ±2 kV contact ESD (IEC 61000-4-2). |
| Telecom Data Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Safeguarding RS-485 transceivers in telecom base station backhaul links subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Differential-line TVS pair (one per line) referenced to common-mode ground. Use Value: 38.9 V clamping ensures transceiver I/O stays within absolute maximum ratings even during 10/1000 µs 1 kV common-mode transients. | Use Scenario: Protecting USB 2.0 D+/D− lines in smart home hubs against user-handling ESD and hot-plug transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector, before ESD filter or PHY IC. Use Value: 24 V VWM allows full USB signaling swing (±0.3 V) with headroom; 38.9 V clamping prevents PHY latch-up during ±8 kV air discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG24CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs M3). | Preferred for non-automotive industrial use where halogen-free requirement is absent. | Select E3 if halogen-free mandate does not apply; M3 required for automotive Tier 1 compliance. |
| SMBJ24CA-M3 | Same VWM/VBR/VC, but SMB (DO-214AA) package (larger footprint, higher PPPM = 600 W same, but different thermal profile). | Used where board space permits larger package or higher thermal mass is needed for sustained surge duty. | Choose SMBJ24CA-M3 only if layout allows DO-214AA; SMBG offers tighter pitch and lower profile for dense automotive PCBs. |
Compared with SMBG24CA-E3/52 and SMBJ24CA-M3, the SMBG24CA-M3/52 uniquely combines halogen-free construction, AEC-Q101 qualification, and SMBG's compact DO-215AA footprint-making it optimal for space-constrained, automotive-grade 24 V system protection where regulatory and thermal constraints converge.
Availability
SMBG24CA-M3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor transmitters, telecom data line interfaces, and consumer USB port protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG24CA-M3/52 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 performance.
The SMBG series was engineered for high-reliability surface-mount transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping behavior across temperature and surge repetition rates.
FAQ
What is the clamping voltage of SMBG24CA-M3/52 and how is it measured?
The SMBG24CA-M3/52 has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM), tested with a 10/1000 µs waveform per IEC 61000-4-5. This value is measured across the device terminals during surge conduction and reflects the upper voltage limit imposed on protected circuits during transient events. The SMBG24CA-M3/52 maintains this clamping performance bidirectionally, ensuring consistent protection regardless of surge polarity.
Is SMBG24CA-M3/52 suitable for automotive applications?
Yes, SMBG24CA-M3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its -55 °C to +150 °C operating range, halogen-free (M3) construction, and validation against temperature cycling, humidity, and mechanical shock meet Tier 1 OEM requirements. The SMBG24CA-M3/52 is listed in Vishay's AEC-Q101 qualified product matrix with full test report traceability.
How does the M3 suffix differ from E3 in SMBG24CA-M3/52?
The M3 suffix denotes halogen-free, RoHS-compliant, industrial-grade construction, whereas E3 is RoHS-compliant but contains brominated flame retardants. Both share identical electrical specifications and SMBG (DO-215AA) packaging, but M3 meets stricter environmental mandates (e.g., EU ELV, Japanese JGPSSI) and is required for automotive supply chains. The SMBG24CA-M3/52 also passes JESD 201 class 2 whisker testing, confirming long-term solder joint reliability under thermal cycling.
What is the reverse leakage current of SMBG24CA-M3/52 at its stand-off voltage?
At its 24 V stand-off voltage (VWM), the SMBG24CA-M3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, per the Vishay datasheet (Document Number: 88456). This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in always-on automotive modules. Leakage remains <5 µA up to 125 °C, supporting stable operation across full industrial temperature range.
Can SMBG24CA-M3/52 be used in bidirectional signal lines like RS-485 or CAN?
Yes, SMBG24CA-M3/52 is specifically designed for bidirectional protection and is commonly deployed on differential bus lines including RS-485, CAN, and LIN. Its symmetrical VBR (26.7–29.5 V) and matched clamping in both polarities ensure balanced protection without distorting differential signaling. The SMBG24CA-M3/52's low capacitance (<100 pF at 0 V, typical) avoids signal edge degradation at standard bus data rates up to 1 Mbps.
SMBG24CA-M3/52 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 15.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG24CA-M3/52 FAQ
1.How can I place an order for SMBG24CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24CA-M3/52 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 SMBG24CA-M3/52 reliable?
The price and inventory of SMBG24CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG24CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24CA-M3/52?
SMBG24CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24CA-M3/52 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 SMBG24CA-M3/52?
For technical support, including SMBG24CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24CA-M3/52 requirements.
6.How does Aetrix verify that SMBG24CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG24CA-M3/52 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 SMBG24CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG24CA-M3/52?
All SMBG24CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24CA-M3/52, 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 SMBG24CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG24CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24CA-M3/52 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
