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Vishay General Semiconductor - Diodes Division SMBJ15AHM3_A/H
- Part No.:
- SMBJ15AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ15AHM3_A/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,007
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Product details
Overview
SMBJ15AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 24.4 V maximum clamping voltage (VC) at 24.6 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - deployed for protecting MOSFETs, ICs, and sensor signal lines in industrial motor drives and telecom power supplies.
For engineers reviewing the SMBJ15AHM3_A/H datasheet, SMBJ15AHM3_A/H pinout, SMBJ15AHM3_A/H application, or SMBJ15AHM3_A/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, UL 497B recognition, and halogen-free RoHS-compliant construction - all critical for automotive-grade ESD/surge protection design-in and long-term supply assurance.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its 100 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL) define PCB pad layout requirements for sustained 5.0 W power dissipation at TA = 50 °C.
The SMBJ15AHM3_A/H meets MSL Level 1 per J-STD-020 (peak reflow ≤ 260 °C), supports automated placement, and is qualified to AEC-Q101 for automotive applications - indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and AEC-Q101-qualified construction with revision code "A/H".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 15 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 16.7–18.5 V at IT = 1 mA - Confirmed breakdown range defining reliable turn-on under transient stress. |
| VC (Clamping Voltage) | 24.4 V at IPPM = 24.6 A - Peak voltage seen by protected circuit during 600 W transient; determines safe IC/MOSFET stress level. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 µs waveform - Sustains high-energy surges without failure; duty cycle limited to 0.01 %. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial environments with thermal margin. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-band marked end. Dimensions: 5.21 mm × 4.06 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 15 V rail or signal input); band denotes cathode end per JEDEC DO-214AA standard. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 15 V rails without derating. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics where reliability over temperature cycling and vibration is mandatory. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life compliance. |
| UL 497B recognized (QVGQ2, E136766) | Approved for use in telecom and industrial surge protective devices requiring third-party safety certification. |
| MSL Level 1 (260 °C peak) | Permits single-pass lead-free reflow without moisture-induced damage; eliminates bake-out requirement pre-assembly. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Suppressing inductive kickback from relay coils and solenoid drivers on 12–24 V DC control boards. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil terminals to clamp flyback spikes to ≤24.4 V. Use Value: Prevents gate oxide damage to driving MOSFETs and ensures microcontroller GPIO integrity during switching events. |
Use Scenario: Protecting LIN bus transceivers and window lift motor drivers from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 12 V supply rail upstream of LDO regulators. Use Value: Maintains system uptime during ISO 7637-2 Pulse 5a (load dump up to 60 V) by limiting rail overshoot to safe levels. |
| Telecom Power Supplies | Consumer Sensor Signal Lines |
|
Use Scenario: Safeguarding AC/DC adapter output stages against lightning-induced surges entering via mains input. IC Role / Device Role / Timing Role: Secondary-side TVS on +15 V bias rail feeding PoE controller ICs. Use Value: Limits transient energy coupled into isolated feedback paths, preserving regulation accuracy and preventing latch-up. |
Use Scenario: Shielding analog outputs of temperature/humidity sensors from ESD events on USB or I²C interface cables. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on sensor VOUT line referenced to local ground. Use Value: Clamps human-body-model (HBM) ESD pulses to <25 V within <1 ns, avoiding ADC saturation or data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15AHE3_A/H | Same electrical specs and SMB package; RoHS-compliant but not halogen-free (E3 vs HM3). | Lacks halogen-free certification; unsuitable for automotive OEMs mandating IEC 61249-2-21 compliance. | Select when halogen content is unrestricted and cost sensitivity outweighs material compliance requirements. |
| SMAJ15A-HF | Lower PPPM (400 W), larger VBR tolerance (16.7–20.6 V), SMA package (smaller footprint, higher RθJA = 140 °C/W). | Insufficient surge margin for IEC 61000-4-5 Level 4; thermal performance limits sustained power handling. | Acceptable only for space-constrained consumer designs with lower surge threat profiles and ambient <70 °C. |
Compared with SMBJ15AHM3_A/H, SMBJ15AHE3_A/H offers identical protection performance but lacks halogen-free status required for Tier 1 automotive programs, while SMAJ15A-HF trades 33 % lower pulse power and inferior thermal resistance for reduced board area - making SMBJ15AHM3_A/H the optimal choice for AEC-Q101-compliant, high-reliability 15 V rail protection.
Availability
SMBJ15AHM3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply, long-term lifecycle support, and certified halogen-free materials.
Supply support for SMBJ15AHM3_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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 qualification, UL recognition, and consistent clamping performance are non-negotiable.
FAQ
What is the maximum clamping voltage of SMBJ15AHM3_A/H at its rated peak pulse current?
The SMBJ15AHM3_A/H has a maximum clamping voltage (VC) of 24.4 V at its specified peak pulse current (IPPM) of 24.6 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in Vishay's datasheet Document Number 88392, page 2. The SMBJ15AHM3_A/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ15AHM3_A/H qualified for automotive applications?
Yes, SMBJ15AHM3_A/H is AEC-Q101 qualified, as indicated by the "HM3" suffix in its part number - denoting halogen-free, RoHS-compliant, and automotive-grade qualification. It is approved for use in body electronics, infotainment power rails, and sensor interfaces where extended temperature operation and reliability under thermal cycling are required. Certification documentation is available under Vishay's QPL listing for SMBJ series devices.
What does the "A/H" suffix signify in SMBJ15AHM3_A/H?
The "A/H" suffix in SMBJ15AHM3_A/H indicates the revision code per Vishay's ordering nomenclature: "A" is the revision level, and "H" denotes the preferred package code for 7″ tape-and-reel delivery (750 units per reel). This suffix does not affect electrical or thermal specifications but identifies the manufacturing lot and packaging format - critical for traceability and procurement alignment in production programs.
How does SMBJ15AHM3_A/H differ from SMBJ15A-E3/52?
SMBJ15AHM3_A/H and SMBJ15A-E3/52 share identical electrical characteristics (VWM = 15 V, VC = 24.4 V, PPPM = 600 W) and SMB package, but differ in material compliance: HM3 denotes halogen-free construction meeting IEC 61249-2-21, while E3 is RoHS-compliant only. Both are AEC-Q101 qualified, but HM3 is mandated for Tier 1 automotive programs with strict halogen restrictions - making SMBJ15AHM3_A/H the compliant choice where E3 falls short.
What is the thermal resistance profile of SMBJ15AHM3_A/H, and how does it impact PCB layout?
SMBJ15AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2″ × 0.2″ copper pads. To sustain its 5.0 W power dissipation rating at TA = 50 °C, PCB layout must provide minimum recommended pad areas per Vishay's outline drawing - undersized pads increase thermal impedance, risking premature thermal runaway during repetitive surge events. The SMBJ15AHM3_A/H datasheet specifies exact copper land patterns on page 5.
SMBJ15AHM3_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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 24.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ15AHM3_A/H FAQ
1.How can I place an order for SMBJ15AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ15AHM3_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 SMBJ15AHM3_A/H reliable?
The price and inventory of SMBJ15AHM3_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 SMBJ15AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ15AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ15AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ15AHM3_A/H?
SMBJ15AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ15AHM3_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 SMBJ15AHM3_A/H?
For technical support, including SMBJ15AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ15AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ15AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ15AHM3_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 SMBJ15AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ15AHM3_A/H?
All SMBJ15AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ15AHM3_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 SMBJ15AHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ15AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ15AHM3_A/H Tags
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