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Vishay General Semiconductor - Diodes Division SMBG24CHE3/5B
- Part No.:
- SMBG24CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24CHE3/5B.pdf
- Description:
- TVS DIODE 24VWM 43VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,112
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Product details
Overview
SMBG24CHE3/5B from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) 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, 38.9 V clamping voltage (VC) at 15.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG24CHE3/5B datasheet, SMBG24CHE3/5B pinout, SMBG24CHE3/5B application, or SMBG24CHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), RoHS-compliant HE3 suffix marking, and DO-215AA mechanical dimensions to support layout, reliability, and compliance validation.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 24 V and rapidly transitions to low-impedance conduction above its 26.7–29.5 V breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling suppression of ESD, inductive switching spikes, and lightning-induced transients.
The SMBG24CHE3/5B is rated for 150 °C maximum junction temperature and supports repetitive surge duty cycles up to 0.01 %, with thermal resistance from junction-to-ambient at 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards.
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 - Confirmed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 38.9 V at 15.4 A - Clamped voltage during 600 W transient, limiting downstream stress |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform, critical for surge immunity |
| IFSM | 100 A - Surge current rating for 8.3 ms half-sine wave, supporting inrush and fault events |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance indicating required PCB copper area for thermal management |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing configuration with cathode band marking on the anode side - compatible with automated placement and reflow soldering per J-STD-020 MSL Level 1 (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point in forward bias; connected to protected line | Low-voltage reference node during clamping; must be routed with controlled impedance |
| Cathode (banded end) | Current exit point in forward bias; tied to ground or lower-potential rail | Primary return path for surge current; requires low-inductance grounding to minimize VC overshoot |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and lifetime |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without derating in standard layouts |
| MSL Level 1 moisture sensitivity | Enables direct use from reel without baking, reducing manufacturing overhead and risk of popcorning |
| HE3 suffix | Indicates RoHS-compliant construction with JESD 201 Class 2 whisker resistance for long-term interconnect integrity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and DC-DC converter input. Use Value: Limits voltage excursion to ≤38.9 V during 15.4 A surges, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bi-directional transient shunt installed at connector interface before signal conditioning circuitry. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amps or ADCs experience overstress. |
| Telecom Interface Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul modules exposed to induced lightning surges. IC Role / Device Role / Timing Role: Uni-directional TVS placed on differential pair lines referenced to local ground plane. Use Value: 600 W rating enables compliance with ITU-T K.20/21 secondary protection requirements. | Use Scenario: Adding secondary-level overvoltage protection on VBUS line of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Standoff-rated clamp positioned after primary fuse and upstream of USB PD controller. Use Value: 24 V VWM allows uninterrupted 5 V/9 V/15 V/20 V PD negotiation while blocking >38.9 V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3/5B | Same VWM (24 V), identical DO-214AA package, but lower PPPM (400 W) and higher VC (43.0 V) | Limited to lower-energy transients; not suitable for IEC 61000-4-5 Level 4 | Select SMBG24CHE3/5B when 600 W surge headroom and tighter clamping are required. |
| SMCJ24AHE3/5B | Same VWM (24 V), higher PPPM (1500 W), larger DO-214AB package (7.11 mm × 6.22 mm) | Requires PCB redesign due to 40 % larger footprint and different pad layout | Choose SMBG24CHE3/5B for space-constrained designs where 600 W suffices and DO-215AA compatibility is mandatory. |
Compared with SMBJ24AHE3/5B and SMCJ24AHE3/5B, the SMBG24CHE3/5B uniquely balances 600 W surge capability, DO-215AA compactness, and AEC-Q101 qualification - making it optimal for automotive and industrial modules where board area, reliability, and standardized test compliance are jointly constrained.
Availability
SMBG24CHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom interface circuits, and consumer USB power delivery systems requiring stable component supply and full traceability.
Supply support for SMBG24CHE3/5B 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 automotive, industrial, and computing applications.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained, thermally demanding environments - combining AEC-Q101 qualification, MSL Level 1 handling, and consistent 600 W pulse performance across the 5.0–188 V range.
FAQ
What is the clamping voltage of SMBG24CHE3/5B and how is it measured?
The SMBG24CHE3/5B has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards with the device mounted on 5.0 mm × 5.0 mm copper pads. The clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events, and SMBG24CHE3/5B maintains this specification across its full operating temperature range.
Is SMBG24CHE3/5B qualified for automotive applications?
Yes, SMBG24CHE3/5B carries the HE3 suffix, confirming it is RoHS-compliant and AEC-Q101 qualified. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114, making it suitable for under-hood and chassis-mounted automotive electronics. The SMBG24CHE3/5B data sheet explicitly lists AEC-Q101 qualification in its mechanical data section.
What does the "5B" in SMBG24CHE3/5B indicate?
The "5B" denotes the preferred package code specifying 13-inch diameter plastic tape and reel packaging with a base quantity of 3200 units per reel. This format supports high-volume SMT assembly lines and is distinct from the "52" code (7-inch reel, 750 units). The "HE3" portion confirms AEC-Q101 qualification and RoHS compliance, while "SMBG24CHE3/5B" as a whole identifies the exact orderable part number.
How does SMBG24CHE3/5B differ from SMBG24AHE3/5B?
SMBG24CHE3/5B and SMBG24AHE3/5B are identical in electrical specifications, package, and qualification - the "C" in SMBG24CHE3/5B is a legacy family designation retained for backward compatibility in Vishay's ordering system. Both share the same VWM = 24 V, VBR = 26.7–29.5 V, VC = 38.9 V, and AEC-Q101 qualification. No functional or parametric difference exists between them.
What is the thermal resistance of SMBG24CHE3/5B and why does it matter?
The SMBG24CHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value directly impacts safe power dissipation during repetitive surges: for example, at 0.01 % duty cycle, sustained average power must remain below ~0.6 W to avoid exceeding the 150 °C maximum junction temperature. Proper PCB copper area is essential to achieve this RθJA.
SMBG24CHE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG24CHE3/5B FAQ
1.How can I place an order for SMBG24CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24CHE3/5B 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 SMBG24CHE3/5B reliable?
The price and inventory of SMBG24CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG24CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24CHE3/5B?
SMBG24CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24CHE3/5B 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 SMBG24CHE3/5B?
For technical support, including SMBG24CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24CHE3/5B requirements.
6.How does Aetrix verify that SMBG24CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG24CHE3/5B 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 SMBG24CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG24CHE3/5B?
All SMBG24CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24CHE3/5B, 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 SMBG24CHE3/5B part is unused and in its original packaging.
Return procedure for SMBG24CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24CHE3/5B Tags
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