My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB10J7.5AHM3/H
- Part No.:
- SMB10J7.5AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5AHM3/H.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,578
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB10J7.5AHM3/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 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1 mA, 12.9 V clamping voltage (VC) at 77.5 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J7.5AHM3/H datasheet, SMB10J7.5AHM3/H pinout, SMB10J7.5AHM3/H application, or SMB10J7.5AHM3/H equivalent, key selection criteria include AEC-Q101 qualification, halogen-free RoHS compliance (HM3 suffix), low clamping ratio (VC/VBR ≈ 1.55), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and stable clamping under repetitive transients. Its thermal resistance (RθJA = 72 °C/W) and junction temperature limit (TJ max = 150 °C) support sustained operation in enclosed automotive and industrial enclosures.
The SMB10J7.5AHM3/H meets J-STD-020 MSL Level 1 (260 °C peak reflow), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 for automotive-grade reliability - distinguishing it from commercial-grade E3/M3 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before significant leakage; sets safe DC rail margin for 9–12 V systems. |
| VBR (min/max) | 8.33 V / 9.21 V at IT = 1 mA - defines precise avalanche initiation window for predictable turn-on during fast transients. |
| VC @ IPPM | 12.9 V at 77.5 A - clamping voltage under 10/1000 µs surge; limits downstream IC stress to ≤13 V during 1000 W events. |
| PPPM | 1000 W - peak pulse power handling per 10/1000 µs waveform; enables protection against ISO 7637-2 Pulse 1/2a/5a surges. |
| ID @ VWM | 100 µA - reverse leakage at rated stand-off; ensures minimal quiescent power loss in battery-powered sensors. |
| TJ max | +150 °C - maximum junction temperature; supports under-hood automotive deployment without derating at 125 °C ambient. |
| AEC-Q101 | Qualified - validated for automotive reliability including HTOL, TC, UHAST, and ESD; required for engine control, ADAS, and body electronics. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile (max height 2.20 mm), with cathode band marking on terminal D. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry / surge return path | Connected to protected line ground or low-side return; carries full surge current during clamping. |
| Cathode (banded end) | Avalanche junction anode / clamping node | Connected to protected line (e.g., 12 V rail); defines polarity-sensitive placement - reversal causes open-circuit failure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity testing, and surge lifetime - eliminates need for additional qualification effort in Tier-1 designs. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-203; supports green manufacturing and export compliance without performance trade-offs. |
| Glass-passivated junction | Ensures stable VBR over 1000+ surge events and prevents moisture-induced parameter drift in humid environments. |
| MSL Level 1 rating | Enables single-pass reflow at 260 °C peak without preconditioning - compatible with standard high-volume SMT lines. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive kick from solenoid drivers), improving system-level EMI resilience. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp surges up to 1000 W. Use Value: Limits voltage excursion to ≤12.9 V during ISO 7637-2 Pulse 5a (100 V/100 ms), preventing LDO latch-up or regulator damage. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at sensor connector to absorb ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events. Use Value: Clamps transients within 1 ns while maintaining <100 µA leakage at 7.5 V - preserving 16-bit ADC accuracy and offset stability. |
| DC-DC Converter Input Stage | Motor Driver Gate Drive Line |
|
Use Scenario: Input protection for 24 V input buck converters in medical power supplies subject to EN 61000-4-5 surge. IC Role / Device Role / Timing Role: Primary surge limiter ahead of input filter capacitor and controller IC. Use Value: Absorbs 1000 W surges without degradation, enabling compliance with 2 kV common-mode surge immunity requirements. |
Use Scenario: Transient suppression on high-side gate drive traces of 48 V BLDC motor controllers. IC Role / Device Role / Timing Role: Fast-clamping diode referenced to gate driver IC's VDD to prevent overvoltage on logic inputs. Use Value: 12.9 V clamping ensures gate driver remains within absolute maximum ratings during MOSFET switching noise coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB10J7.5AHE3/H | Same electrical specs, but RoHS-compliant (E3) without halogen-free certification; MSL Level 1 and AEC-Q101 retained. | Acceptable for non-automotive industrial use where halogen-free mandate is absent; lower cost than HM3 variant. | Select when halogen-free compliance is not required by OEM or regional regulation (e.g., non-EU consumer products). |
| SMAJ7.5A | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W); same VWM/VBR/VC specs. | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD), not ISO 7637-2 load dump; limited thermal margin. | Choose only for space-constrained PCBs where surge energy is confirmed ≤400 W and ambient temperature stays <85 °C. |
Compared with SMB10J7.5AHE3/H, the SMB10J7.5AHM3/H adds halogen-free assurance without sacrificing AEC-Q101 or power rating; versus SMAJ7.5A, it delivers 2.5× higher surge capacity and superior thermal management - critical for automotive and industrial 12–24 V systems.
Availability
SMB10J7.5AHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and DC-DC converter input staging requiring stable component supply across multi-year production cycles.
Supply support for SMB10J7.5AHM3/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 reliability, power density, and automotive qualification.
The SMB10J series targets high-power transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, automated assembly, and robust clamping performance in 12 V and 24 V vehicle architectures.
FAQ
What is the clamping voltage of SMB10J7.5AHM3/H at its rated peak pulse current?
The SMB10J7.5AHM3/H has a maximum clamping voltage (VC) of 12.9 V at 77.5 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is guaranteed per Vishay Document Number 88422 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J7.5AHM3/H maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C) when mounted on specified 5.0 mm × 5.0 mm copper pads.
Is SMB10J7.5AHM3/H suitable for automotive applications?
Yes, SMB10J7.5AHM3/H is AEC-Q101 qualified and explicitly designated for automotive use via the HM3 suffix (halogen-free, RoHS-compliant, AEC-Q101). It passes stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making it appropriate for engine control, body electronics, and ADAS subsystems. The SMB10J7.5AHM3/H data sheet confirms qualification per AEC-Q101 Rev H, with no derating required up to TJ = 150 °C.
How does the HM3 suffix differ from the E3 or M3 suffixes in the SMB10J7.5A family?
The HM3 suffix on SMB10J7.5AHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. In contrast, E3 denotes RoHS-compliant only (no halogen-free claim), and M3 denotes halogen-free + RoHS but without AEC-Q101. All three share identical electrical parameters and SMB package dimensions, but only HM3 and HE3 meet automotive reliability standards. The SMB10J7.5AHM3/H is therefore the preferred choice for Tier-1 automotive designs requiring full material and qualification compliance.
What is the reverse leakage current of SMB10J7.5AHM3/H at its stand-off voltage?
The SMB10J7.5AHM3/H exhibits a maximum reverse leakage current (ID) of 100 µA at its 7.5 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal power loss in always-on circuits such as automotive wake-up receivers or battery-backed sensor nodes. Leakage remains below 500 µA up to TJ = 125 °C, supporting reliable operation in thermally demanding environments without compromising system standby current budgets.
Can SMB10J7.5AHM3/H be used in bidirectional configurations?
No, SMB10J7.5AHM3/H is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional variants (e.g., SMB10J7.5CA) exist in the same family but have different breakdown symmetry and clamping behavior. Using SMB10J7.5AHM3/H in a bidirectional application would result in forward conduction during negative transients, causing failure. For AC or dual-polarity protection, select SMB10J7.5CAHM3/H or equivalent bidirectional part.
SMB10J7.5AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 77.5A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J7.5AHM3/H FAQ
1.How can I place an order for SMB10J7.5AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5AHM3/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 SMB10J7.5AHM3/H reliable?
The price and inventory of SMB10J7.5AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5AHM3/H is usually 5 days.
3.What payment methods are accepted for SMB10J7.5AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5AHM3/H?
SMB10J7.5AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5AHM3/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 SMB10J7.5AHM3/H?
For technical support, including SMB10J7.5AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5AHM3/H requirements.
6.How does Aetrix verify that SMB10J7.5AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5AHM3/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 SMB10J7.5AHM3/H meets industry standards.
7.What is the process for return or replacement of SMB10J7.5AHM3/H?
All SMB10J7.5AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5AHM3/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 SMB10J7.5AHM3/H part is unused and in its original packaging.
Return procedure for SMB10J7.5AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5AHM3/H 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 …
