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Vishay General Semiconductor - Diodes Division SMB10J24AHE3_A/H
- Part No.:
- SMB10J24AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24AHE3_A/H.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J24AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 24 V stand-off 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 - deployed in automotive sensor interfaces and industrial power supply inputs.
For engineers reviewing the SMB10J24AHE3_A/H datasheet, SMB10J24AHE3_A/H pinout, SMB10J24AHE3_A/H application, or SMB10J24AHE3_A/H equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VWM ≈ 1.62), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device triggered by overvoltage events exceeding its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping performance under repetitive transients up to 150 °C junction temperature.
The SMB10J24AHE3_A/H is rated for 100 A non-repetitive forward surge current (IFSM) and exhibits 1.0 µA max reverse leakage at VWM - critical for low-power sensor circuits where standby current integrity must be preserved during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 24 V systems. |
| VBR min/max | 26.7 V / 29.5 V - breakdown occurs within this range at 1 mA test current; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 38.9 V - clamping voltage at 25.7 A peak pulse current; limits downstream IC stress during 10/1000 µs surges. |
| PPPM | 1000 W - peak pulse power handling with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly mounted. |
| IFSM | 100 A - single half-sine surge rating (8.3 ms); withstands inrush or fault currents without bond wire failure. |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| Leakage ID | 1.0 µA max at VWM - negligible standby current draw; preserves battery life in always-on sensor nodes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL level 1 (260 °C reflow peak), UL 94 V-0 molding compound. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to system ground or return path; completes clamping loop during overvoltage event. |
| Cathode | Protected line input | Connected to protected line (e.g., 24 V supply rail or sensor output); absorbs surge energy into ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22 standards. |
| Glass passivated junction | Ensures stable VBR drift < ±5% over lifetime and eliminates moisture-induced parameter shift in humid environments. |
| Low clamping ratio (VC/VWM) | 1.62 - minimizes overvoltage exposure to downstream ICs while maintaining margin above nominal 24 V rail. |
| MSL Level 1 compliance | Enables standard SMT reflow without pre-baking; compatible with high-volume automated assembly lines. |
| 1000 W PPPM rating | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 combination wave surges in industrial control cabinets. |
Applications
| Automotive Sensor Protection | Industrial 24 V Power Input |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between sensor VCC line and chassis ground, activated within <1 ns of overvoltage onset. Use Value: Limits transient voltage to ≤38.9 V, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs powered from regulated 24 V supplies. | Use Scenario: Safeguarding programmable logic controllers (PLCs) and motor drives against surges induced by contactor switching and lightning coupling on 24 V DC control rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 24 V input, coordinated with upstream fuses and downstream DC-DC converters. Use Value: Absorbs 1000 W surge energy without degradation, maintaining system uptime in factory automation environments with frequent EMI events. |
| Telecom Remote I/O Module | Medical Diagnostic Equipment Interface |
Use Scenario: Shielding RS-485/RS-232 data lines and auxiliary 24 V bias rails in outdoor telecom base station remote I/O units exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on field-side connectors, placed before isolation barriers and line drivers. Use Value: Clamps 10/1000 µs surges to 38.9 V within nanoseconds, preserving signal integrity and preventing false triggering in timing-critical backhaul links. | Use Scenario: Securing external sensor ports (e.g., ECG lead inputs, temperature probes) connected to 24 V-powered diagnostic analyzers used in hospital settings. IC Role / Device Role / Timing Role: Patient-isolation boundary TVS on auxiliary power and signal paths, certified to meet IEC 60601-1 creepage/clearance requirements. Use Value: Provides 1.0 µA max leakage at 24 V - avoids interference with microvolt-level bio-signals while meeting AEC-Q101 reliability benchmarks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-E3/52 | Same VWM (24 V), same SMB package, but commercial-grade (non-AEC-Q101), higher leakage (5 µA max). | Lacks automotive qualification; suitable for cost-sensitive industrial or consumer designs without automotive lifecycle requirements. | Select when AEC-Q101 is not mandated and lower leakage is not critical. |
| SMCJ24AHE3_A/H | Same AEC-Q101 rating and VWM, but larger SMC (DO-214AB) package with 1500 W PPPM and 43.5 V VC. | Higher clamping voltage reduces protection margin for 24 V systems; requires larger PCB area and thermal pad. | Choose only if >1000 W surge capability is required and board space allows SMC footprint. |
Compared with SMBJ24A-E3/52 and SMCJ24AHE3_A/H, the SMB10J24AHE3_A/H uniquely balances AEC-Q101 compliance, low 38.9 V clamping, and compact SMB footprint - making it optimal for space-constrained automotive and industrial modules requiring validated reliability without over-engineering.
Availability
SMB10J24AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial 24 V power inputs, and telecom remote I/O modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J24AHE3_A/H 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 high-reliability, high-power-density solutions.
The SMB10J series targets automotive and industrial transient suppression, engineered specifically to meet AEC-Q101 stress testing and deliver consistent clamping performance in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMB10J24AHE3_A/H at its rated peak pulse current?
The SMB10J24AHE3_A/H has a maximum clamping voltage (VC) of 38.9 V at 25.7 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and verified across production lots; it ensures protected circuits remain below critical overvoltage thresholds during standardized surge events. The SMB10J24AHE3_A/H maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C).
Is SMB10J24AHE3_A/H qualified for automotive applications?
Yes, SMB10J24AHE3_A/H is AEC-Q101 qualified, with full test reports covering temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing (uHAST), and mechanical shock. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. This makes SMB10J24AHE3_A/H suitable for under-hood and cabin ECU applications where automotive-grade reliability is mandatory.
What is the standoff voltage (VWM) and why is it important for SMB10J24AHE3_A/H?
The standoff voltage (VWM) of SMB10J24AHE3_A/H is 24 V - the maximum continuous reverse voltage the device blocks without entering breakdown. This parameter defines the upper limit of normal operating voltage on the protected line. Selecting a VWM equal to the system's nominal rail (e.g., 24 V) ensures reliable blocking during steady-state operation while allowing sufficient margin for ripple and tolerance before clamping initiates. The SMB10J24AHE3_A/H's 24 V VWM aligns precisely with common industrial and automotive 24 V architectures.
How does the SMB10J24AHE3_A/H compare to bidirectional TVS diodes with the same VWM?
The SMB10J24AHE3_A/H is unidirectional, meaning it protects only against positive transients on the cathode line relative to anode (ground). Bidirectional variants like SMB8J24CA have symmetric clamping for AC or floating lines but lower PPPM (800 W vs. 1000 W) and higher VC (38.9 V same, but at lower IPPM). For DC-powered 24 V systems - such as sensor supplies or PLC inputs - the unidirectional SMB10J24AHE3_A/H delivers superior surge energy handling and tighter leakage control (1.0 µA vs. 1.0 µA, but with better VBR consistency).
What PCB layout guidance applies to SMB10J24AHE3_A/H for optimal surge performance?
For optimal transient response, mount SMB10J24AHE3_A/H with minimum trace length between cathode and protected line, and anode and solid ground plane. Vishay specifies 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated PPPM. Avoid thermal relief on anode pad; use direct copper pour to maximize heat dissipation during surge events. The SMB10J24AHE3_A/H's low RθJL (20 °C/W) relies on this layout to sustain repeated surges without junction overheating.
SMB10J24AHE3_A/H 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:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 25.7A
- 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)
SMB10J24AHE3_A/H FAQ
1.How can I place an order for SMB10J24AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24AHE3_A/H 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 SMB10J24AHE3_A/H reliable?
The price and inventory of SMB10J24AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J24AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24AHE3_A/H?
SMB10J24AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24AHE3_A/H 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 SMB10J24AHE3_A/H?
For technical support, including SMB10J24AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24AHE3_A/H requirements.
6.How does Aetrix verify that SMB10J24AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J24AHE3_A/H 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 SMB10J24AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J24AHE3_A/H?
All SMB10J24AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24AHE3_A/H, 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 SMB10J24AHE3_A/H part is unused and in its original packaging.
Return procedure for SMB10J24AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24AHE3_A/H Tags
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