My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB10J30AHE3_A/I
- Part No.:
- SMB10J30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30AHE3_A/I.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,283
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB10J30AHE3_A/I 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), 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 electronics, industrial sensor interfaces, and DC-DC converter input protection.
For engineers reviewing the SMB10J30AHE3_A/I datasheet, SMB10J30AHE3_A/I pinout, SMB10J30AHE3_A/I application, or SMB10J30AHE3_A/I equivalent, this part delivers AEC-Q101 qualified transient suppression for 12 V/24 V automotive systems, meets MSL level 1 reflow compatibility, and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents <1.0 µA reverse leakage at 30 V, then rapidly avalanches when transient voltage exceeds its 33.3–36.8 V breakdown threshold. Its low incremental surge resistance enables fast response (<1 ns) and stable clamping performance across temperature (−55 °C to +150 °C junction).
Designed for robustness in harsh environments, SMB10J30AHE3_A/I uses glass-passivated pellet chip junction construction, achieves 72 °C/W junction-to-ambient thermal resistance, and sustains 100 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave - making it suitable for load-dump and ISO 7637-2 pulse 5a/b protection in automotive ECUs.
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 24 V nominal systems. |
| VBR (min/max) | 33.3 V / 36.8 V - guaranteed avalanche onset range at 1.0 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 48.4 V at 20.7 A - clamped voltage during 10/1000 µs surge; limits downstream IC stress below 50 V threshold. |
| PPPM | 1000 W - peak pulse power handling capability; supports high-energy transients per ISO 7637-2 Level 5a (100 V, 1 Ω source). |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at rated stand-off; preserves battery life and avoids false triggering in always-on circuits. |
| TJ max. | +150 °C - maximum junction temperature rating; enables operation in engine bay or under-hood automotive modules. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line (e.g., 24 V rail); conducts surge current to ground when overvoltage occurs. |
| Anode | Low-side reference terminal | Connected to system ground or return path; completes shunt path during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable avalanche characteristics and long-term reliability under repeated surge stress without parameter drift. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture-related popcorn failure; eliminates pre-bake requirement for production lines. |
| AEC-Q101 qualification | Validates suitability for automotive applications including powertrain, body control, and ADAS modules requiring zero-defect reliability. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin for sensitive MOSFETs. |
| RoHS-compliant & halogen-free option | HE3 suffix indicates RoHS compliance; HM3 variant adds halogen-free molding compound for stricter environmental compliance programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of engine control units (ECUs) against load-dump transients per ISO 7637-2 Pulse 5a (up to 100 V, 1 Ω source). IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, clamping surges within nanoseconds. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤48.4 V, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across signal and return paths to absorb ESD and switching noise. Use Value: Maintains signal integrity with <1.0 µA leakage at 30 V, avoiding offset errors while surviving 8 kV contact ESD per IEC 61000-4-2. |
| DC-DC Converter Input Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Front-end protection of isolated 48 V input stage in telecom DC-DC modules exposed to lightning-induced surges on PoE or base station feeds. IC Role / Device Role / Timing Role: Primary clamping device upstream of input filter capacitors and active rectifiers. Use Value: Absorbs 1000 W peak pulses without degradation, enabling compact design versus multi-stage protection schemes. |
Use Scenario: Secondary-side 12 V rail protection in optical line terminals (OLTs) where space-constrained PCB layout demands low-profile SMT devices. IC Role / Device Role / Timing Role: Standoff-rated TVS placed adjacent to voltage regulators feeding FPGAs and SerDes PHYs. Use Value: SMB footprint allows dense placement near ICs; 48.4 V clamping ensures logic-level safety margins for 3.3 V/1.8 V core supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Same VWM (30 V), VBR (33.3–36.8 V), and VC (48.4 V), but commercial-grade (non-AEC-Q101) and RoHS-compliant only (no halogen-free option). | Lacks automotive qualification; unsuitable for under-hood or safety-critical modules requiring AEC-Q101 traceability. | Select when cost sensitivity outweighs automotive qualification requirements and environment is non-automotive. |
| 1.5KE30A | Through-hole DO-15 package; same electrical specs but higher RθJA (60 °C/W vs. 72 °C/W), lower surge current rating (19.2 A vs. 20.7 A), and no MSL level 1 rating. | Requires manual or wave soldering; incompatible with high-speed SMT lines and reflow-only processes. | Choose only for legacy through-hole designs or prototyping where board real estate and assembly method permit larger footprint. |
Compared with SMBJ30A-E3/52 and 1.5KE30A, SMB10J30AHE3_A/I uniquely combines AEC-Q101 qualification, MSL level 1 reflow compatibility, and SMB footprint - enabling drop-in use in automotive production lines without layout or process changes, while delivering identical clamping performance.
Availability
SMB10J30AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC-DC converter manufacturing requiring stable component supply with full AEC-Q101 traceability and extended lifecycle support.
Supply support for SMB10J30AHE3_A/I 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, power density, and application-specific validation.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density transient suppression in automotive, industrial, and telecom infrastructure where space, thermal performance, and qualification rigor are critical.
FAQ
What is the clamping voltage of SMB10J30AHE3_A/I at its rated peak pulse current?
The SMB10J30AHE3_A/I has a maximum clamping voltage (VC) of 48.4 V at its specified peak pulse current (IPPM) of 20.7 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and guarantees that downstream circuitry will not experience voltages exceeding 48.4 V during such transient events - a key parameter for protecting 3.3 V or 5 V logic interfaces powered from a 24 V rail.
Is SMB10J30AHE3_A/I qualified for automotive applications?
Yes, SMB10J30AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation (Document Number: 88422, Revision: 09-Jan-2024). The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making SMB10J30AHE3_A/I suitable for engine control, body electronics, and ADAS modules.
What does the "_A/I" suffix mean in SMB10J30AHE3_A/I?
The "_A/I" suffix in SMB10J30AHE3_A/I indicates packaging configuration: "A" is the revision code per Vishay's internal documentation, and "I" specifies 13-inch diameter plastic tape and reel delivery mode with 3200 units per reel. This matches the ordering information table in the datasheet (page 3), where "I" corresponds to the preferred package code for high-volume SMT assembly lines requiring extended reel lengths.
Can SMB10J30AHE3_A/I replace SMBJ30A in an existing design?
SMB10J30AHE3_A/I shares identical electrical specifications (VWM = 30 V, VBR = 33.3–36.8 V, VC = 48.4 V) and SMB (DO-214AA) package dimensions with SMBJ30A, but adds AEC-Q101 qualification and MSL level 1 reflow rating. If the original design requires automotive qualification or lead-free reflow compatibility, SMB10J30AHE3_A/I is a direct functional and mechanical upgrade - however, validation per AEC-Q100 stress testing is recommended for safety-critical deployments.
What is the maximum operating temperature for SMB10J30AHE3_A/I?
The SMB10J30AHE3_A/I has a maximum junction temperature (TJ max.) of +150 °C and an operating junction/storage temperature range of −55 °C to +150 °C. This rating is verified per thermal characterization data in the datasheet and supports deployment in under-hood automotive environments, industrial motor drives, and telecom base stations where ambient temperatures exceed 105 °C - provided PCB copper pad area meets the 0.2" × 0.2" (5.0 mm × 5.0 mm) minimum recommendation.
SMB10J30AHE3_A/I 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J30AHE3_A/I FAQ
1.How can I place an order for SMB10J30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30AHE3_A/I 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 SMB10J30AHE3_A/I reliable?
The price and inventory of SMB10J30AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30AHE3_A/I?
SMB10J30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30AHE3_A/I 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 SMB10J30AHE3_A/I?
For technical support, including SMB10J30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30AHE3_A/I requirements.
6.How does Aetrix verify that SMB10J30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J30AHE3_A/I 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 SMB10J30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J30AHE3_A/I?
All SMB10J30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30AHE3_A/I, 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 SMB10J30AHE3_A/I part is unused and in its original packaging.
Return procedure for SMB10J30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30AHE3_A/I 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
