My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB10J30A-M3/52
;;2.jpg)
- Part No.:
- SMB10J30A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30A-M3/52.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,792
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB10J30A-M3/52 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 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 48.4 V clamping voltage (VC) at 20.7 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J30A-M3/52 datasheet, SMB10J30A-M3/52 pinout, SMB10J30A-M3/52 application, or SMB10J30A-M3/52 equivalent, this device delivers verified AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and low incremental surge resistance critical for robust ESD and load-dump immunity in safety-critical embedded systems.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping protector: under normal bias it presents <1 µA leakage at 30 V, then rapidly avalanches to clamp transients up to 48.4 V while sustaining 1000 W peak power. Its glass-passivated junction ensures stable VBR tolerance and fast response (<1 ns), with thermal resistance RθJL = 20 °C/W enabling reliable operation up to TJ = 150 °C.
The SMB10J30A-M3/52 is rated for non-repetitive 100 A forward surge (IFSM, 8.3 ms half-sine) and meets J-STD-020 MSL Level 1 (260 °C reflow peak). Its DO-214AA package supports automated placement and provides UL 94 V-0 flammability compliance via molded compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 3.3 V/5 V/12 V/24 V systems. |
| VBR (min/max) | 33.3 V / 36.8 V at 1 mA - tight 10.5% tolerance ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 48.4 V at 20.7 A - clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 1/2a/5a surges. |
| PPPM | 1000 W (10/1000 µs) - sustains high-energy transients common in automotive load-dump and inductive switching events. |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves battery life and avoids false triggering in always-on circuits. |
| TJ max. | +150 °C - enables deployment in under-hood automotive ECUs and industrial motor drives without derating. |
| Package | SMB (DO-214AA) - surface-mount footprint (5.59 mm × 3.94 mm × 2.20 mm) compatible with standard SMT assembly and IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by color band on one end. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; forms shunt path during overvoltage event. |
| Cathode | Protected line input | Connected to protected rail (e.g., 24 V supply); avalanche conduction occurs from cathode to anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for ASIL-B system power rails. |
| Halogen-free & RoHS-compliant (M3) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance - supports green manufacturing and long-term solder joint integrity. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 10605 ESD), improving protection margin for 3.3 V logic. |
| MSL Level 1 (260 °C) | Enables single-pass lead-free reflow without moisture sensitivity concerns - eliminates bake requirements pre-assembly. |
| Glass-passivated junction | Ensures stable VBR over lifetime and humidity exposure, critical for industrial field-deployed equipment with >10-year service life. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply input of body control module (BCM) against ISO 7637-2 load-dump pulses up to 60 V/100 ms. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at connector entry point to divert surge energy to chassis ground before reaching DC/DC converter. Use Value: Clamps peak voltage to ≤48.4 V at 20.7 A, preventing damage to upstream PMIC and ensuring uninterrupted MCU operation during engine cranking. |
Use Scenario: Safeguarding analog output (4–20 mA) line of pressure sensor in factory automation PLC I/O module. IC Role / Device Role / Timing Role: Bidirectional protection not applicable - SMB10J30A-M3/52 used unidirectionally between signal line and local ground to suppress ESD and inductive kickback. Use Value: Sub-1 µA leakage avoids loading precision current loop; 48.4 V clamping prevents op-amp input saturation during 4 kV contact ESD events. |
| Telecom DC Power Feeding | Consumer USB-C Power Delivery Interface |
|
Use Scenario: Securing -48 V DC feed line in remote radio head (RRH) base station against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-line, anode-to-ground to clamp negative-going transients while blocking normal -48 V bias. Use Value: 1000 W PPPM rating handles multi-kA induced surges; 150 °C junction rating supports operation inside sealed outdoor enclosures. |
Use Scenario: Protecting VBUS line in USB-C receptacle against hot-plug overshoot and cable ESD in portable docking stations. IC Role / Device Role / Timing Role: Placed inline between connector and USB PD controller to limit VBUS excursions during fault conditions. Use Value: 30 V VWM allows compatibility with 20 V PD3.1 extended power range; 48.4 V VC ensures downstream buck converter remains within absolute max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-M3/52 | Same VWM (30 V), identical SMB package, but lower PPPM (600 W vs. 1000 W) and higher VC (53.3 V vs. 48.4 V). | Not suitable for automotive load-dump where 1000 W rating is mandated; acceptable for consumer-grade ESD-only protection. | Select SMB10J30A-M3/52 when 1000 W surge handling and tighter clamping are required; SMBJ30A-M3/52 only if space-constrained and lower energy threats apply. |
| 1.5SMC33AHE3/A | Higher VWM (33 V), larger SMC (DO-214AB) package, same 1000 W PPPM but higher VC (59.3 V) and 1.5× footprint area. | Requires PCB redesign due to larger pad layout; less suitable for dense automotive modules where SMB footprint is standardized. | Choose SMB10J30A-M3/52 for drop-in replacement in existing SMB layouts; use 1.5SMC33AHE3/A only when higher VWM margin or legacy SMC tooling is mandatory. |
Compared with SMBJ30A-M3/52 and 1.5SMC33AHE3/A, SMB10J30A-M3/52 uniquely combines 1000 W surge capability, 48.4 V clamping, AEC-Q101 qualification, and compact SMB packaging - making it the optimal choice for next-generation automotive and industrial power rail protection where board space and performance are co-constrained.
Availability
SMB10J30A-M3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power feeding systems, and USB-C power delivery interfaces requiring stable component supply and full traceability.
Supply support for SMB10J30A-M3/52 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, efficiency, and application-specific optimization.
The SMB10J series is engineered for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low clamping voltage, and robust surge handling are non-negotiable.
FAQ
What is the maximum clamping voltage of SMB10J30A-M3/52 at its rated peak pulse current?
The SMB10J30A-M3/52 has a maximum clamping voltage (VC) of 48.4 V at its specified peak pulse current (IPPM) of 20.7 A, measured using the 10/1000 µs waveform. This value is guaranteed across temperature and production lots per Vishay Document 88422, ensuring consistent overvoltage protection for downstream circuitry in the SMB10J30A-M3/52 design.
Is SMB10J30A-M3/52 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SMB10J30A-M3/52 is explicitly AEC-Q101 qualified per Vishay's documentation and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade qualification. It is approved for use in automotive power distribution modules, body electronics, and ADAS sensors where SMB10J30A-M3/52 must withstand temperature cycling, HTRB, and surge stress per AEC test standards.
What does the "M3" suffix mean in SMB10J30A-M3/52?
The "M3" suffix in SMB10J30A-M3/52 denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21 and JESD201 Class 2 whisker resistance requirements. It also confirms compliance with Vishay's material categorization standard (Document 99912) and qualifies the SMB10J30A-M3/52 for green manufacturing and long-life reliability in industrial and automotive deployments.
Can SMB10J30A-M3/52 be used in bidirectional protection configurations?
No, SMB10J30A-M3/52 is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical characteristics - including breakdown voltage symmetry and clamping behavior - are defined only for cathode-to-anode conduction. For bidirectional protection, Vishay specifies separate parts such as SMB8J30CA; using SMB10J30A-M3/52 in reverse-biased mode risks failure or undefined clamping performance.
What is the thermal resistance from junction to lead (RθJL) for SMB10J30A-M3/52?
The SMB10J30A-M3/52 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as specified in Vishay Document 88422. This low value enables efficient heat transfer from the silicon die to the PCB copper pads, supporting sustained operation at +150 °C junction temperature and enhancing reliability in thermally constrained layouts where the SMB10J30A-M3/52 is deployed.
SMB10J30A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 20.7A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMB10J30A-M3/52 FAQ
1.How can I place an order for SMB10J30A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30A-M3/52 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 SMB10J30A-M3/52 reliable?
The price and inventory of SMB10J30A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J30A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30A-M3/52?
SMB10J30A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30A-M3/52 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 SMB10J30A-M3/52?
For technical support, including SMB10J30A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30A-M3/52 requirements.
6.How does Aetrix verify that SMB10J30A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J30A-M3/52 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 SMB10J30A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J30A-M3/52?
All SMB10J30A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30A-M3/52, 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 SMB10J30A-M3/52 part is unused and in its original packaging.
Return procedure for SMB10J30A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30A-M3/52 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 …
