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Vishay General Semiconductor - Diodes Division SMB10J24HE3/5B
- Part No.:
- SMB10J24HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24HE3/5B.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,565
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Product details
Overview
SMB10J24HE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 24 V standoff voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 38.9 V clamping voltage (VC) at 25.7 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMB10J24HE3/5B datasheet, SMB10J24HE3/5B pinout, SMB10J24HE3/5B application, or SMB10J24HE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs transients, unidirectional polarity for DC rail protection, AEC-Q101 qualification for automotive environments, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (≤1.0 µA at VWM), while its low incremental surge resistance enables effective energy absorption without thermal runaway.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing - confirming robustness for high-reliability reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail voltage ceiling. |
| VBR (min/max) | 26.7 V / 29.5 V - breakdown occurs within this range at 1 mA test current; ensures predictable turn-on margin above VWM. |
| VC @ IPPM | 38.9 V - clamped voltage at 25.7 A peak pulse current; determines maximum stress imposed on protected ICs during surge. |
| PPPM | 1000 W - peak pulse power handling with 10/1000 µs waveform; quantifies single-event surge energy capacity. |
| ID @ VWM | ≤1.0 µA - reverse leakage at 24 V; critical for low-power sensor or battery-backed circuits where standby current matters. |
| TJ max. | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments. |
| Package | DO-214AA (SMB) - surface-mount outline with cathode band marking; compatible with standard SMB footprint and reflow profiles. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode indicated by a color band on one end. Designed for automated placement and soldering per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential node; completes conduction path during reverse avalanche. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V supply rail); receives transient energy and initiates clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, body electronics, and ADAS modules. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift versus epoxy-passivated alternatives. |
| MSL Level 1 rating | Allows unlimited floor life and exposure to 260 °C peak reflow without preconditioning - simplifies manufacturing logistics. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during surge events, reducing risk of latch-up or damage to 3.3 V/5 V logic interfaces downstream. |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal stress, eliminating latent short-circuit risk in long-life automotive applications. |
Applications
| Automotive Power Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary shunt clamp on main power rail upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤38.9 V during 1000 W surges, preventing damage to 40 V-rated input stages of PMICs and MCUs. |
Use Scenario: Analog input channels (4–20 mA, 0–10 V) in programmable logic controllers subjected to field-wiring induced surges. IC Role / Device Role: Front-end protection element placed before precision op-amps and ADC drivers. Use Value: Clamps fast-rising transients (<1 ns rise time) with <1.0 µA leakage at 24 V, preserving signal integrity and offset accuracy. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
Use Scenario: -48 V telecom rectifier outputs feeding base station backplanes vulnerable to lightning-induced surges. IC Role / Device Role: Secondary protection stage after bulk MOVs, providing precise clamping near system rail voltage. Use Value: Delivers 1000 W pulse handling with 24 V VWM - matches common -48 V system derating margins while minimizing standby loss. |
Use Scenario: Isolated gate drive supplies (e.g., for SiC MOSFETs) in servo inverters experiencing shoot-through-induced voltage spikes. IC Role / Device Role: Clamp across isolated DC/DC output to protect gate driver ICs from secondary-side transients. Use Value: Fast response (<1 ps) and low VC ensure gate oxide stress remains below 10 V, avoiding driver failure during 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 |
|---|---|---|---|
| SMBJ24A-E3/5B | Same DO-214AA package, identical VWM/VBR/VC specs, but commercial-grade (non-AEC-Q101) and JESD201 Class 1A whisker rating. | Lacks automotive qualification; suitable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and full lifecycle traceability is not needed. |
| SMCJ24AHE3/5B | DO-214AB (SMC) package - larger footprint, higher PPPM (1500 W), same VWM/VBR/VC, but 30% larger board area and different thermal profile. | Better suited for higher-energy surges (e.g., ISO 16750-2) but requires PCB redesign and increased layout space. | Choose only if 1000 W is insufficient and mechanical redesign is acceptable; otherwise SMB10J24HE3/5B offers optimal power density. |
Compared with SMBJ24A-E3/5B, SMB10J24HE3/5B adds AEC-Q101 qualification and Class 2 whisker resistance for automotive use; compared with SMCJ24AHE3/5B, it delivers equivalent protection in 40% less PCB area - making it the preferred choice for space-constrained, high-reliability 24 V systems.
Availability
SMB10J24HE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power distribution systems requiring stable component supply and long-term lifecycle support.
Supply support for SMB10J24HE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of SMB10J24HE3/5B at its rated peak pulse current?
The SMB10J24HE3/5B has a maximum clamping voltage (VC) of 38.9 V at 25.7 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMB10J24HE3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMB10J24HE3/5B suitable for automotive applications?
Yes, SMB10J24HE3/5B is AEC-Q101 qualified and tested for automotive-grade reliability, including temperature cycling, highly accelerated life testing (HALT), and ESD immunity. Its HE3 suffix confirms compliance with JESD201 Class 2 whisker resistance and MSL Level 1 reflow capability - making SMB10J24HE3/5B appropriate for engine control modules, body control units, and ADAS power supplies.
How does the SMB10J24HE3/5B differ from the SMBJ24A-E3/5B?
SMB10J24HE3/5B and SMBJ24A-E3/5B share identical electrical specifications (VWM = 24 V, VBR = 26.7–29.5 V, VC = 38.9 V) and DO-214AA package, but SMB10J24HE3/5B carries the HE3 suffix indicating AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas SMBJ24A-E3/5B is commercial-grade with Class 1A. Both are unidirectional, but only SMB10J24HE3/5B is approved for automotive use.
What is the maximum reverse leakage current for SMB10J24HE3/5B at 24 V?
The SMB10J24HE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 24 V standoff voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power loss in always-on automotive modules and preserves accuracy in high-impedance sensor interfaces. Leakage remains within specification up to +125 °C junction temperature per derating curves in the Vishay datasheet.
Can SMB10J24HE3/5B be used in bi-directional configurations?
No, SMB10J24HE3/5B is a unidirectional TVS diode, indicated by the "J" (not "JC") in its part number and confirmed by its single cathode band marking. For bi-directional protection at 24 V, Vishay offers the SMB8J24CA variant - which has symmetric breakdown in both polarities and no polarity marking. Using SMB10J24HE3/5B in reverse-biased AC applications would result in forward conduction and failure.
SMB10J24HE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J24HE3/5B FAQ
1.How can I place an order for SMB10J24HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24HE3/5B 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 SMB10J24HE3/5B reliable?
The price and inventory of SMB10J24HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24HE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J24HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24HE3/5B?
SMB10J24HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24HE3/5B 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 SMB10J24HE3/5B?
For technical support, including SMB10J24HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24HE3/5B requirements.
6.How does Aetrix verify that SMB10J24HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J24HE3/5B 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 SMB10J24HE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J24HE3/5B?
All SMB10J24HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24HE3/5B, 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 SMB10J24HE3/5B part is unused and in its original packaging.
Return procedure for SMB10J24HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24HE3/5B Tags
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