My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ5.0A/52
;;2.jpg)
- Part No.:
- SMBJ5.0A/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0A/52.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,901
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ5.0A/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps transients to ≤9.2 V at 65.2 A IPPM - deployed in consumer power supplies, industrial sensor interfaces, and automotive ECUs.
For engineers reviewing the SMBJ5.0A/52 datasheet, SMBJ5.0A/52 pinout, SMBJ5.0A/52 application, or SMBJ5.0A/52 equivalent, this page delivers verified package mapping (SMB/DO-214AA), confirmed unidirectional polarity with cathode band marking, clamping performance under standardized surge waveforms, and AEC-Q101-qualified alternatives for automotive-grade designs.
Technical Context
The SMBJ5.0A/52 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and lightning-induced transients. Its low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.3–1.45) ensure minimal let-through voltage during 600 W surges.
Thermal design relies on its RθJA of 100 °C/W and RθJL of 20 °C/W, with derating required above TA = 25 °C per Fig. 2. The device is rated for TJ = –55 °C to +150 °C and meets MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 5 V systems. |
| VBR (min/max) | 6.40 V / 7.07 V at IT = 10 mA - Confirmed breakdown range ensures reliable triggering without premature conduction. |
| VC @ IPPM | 9.2 V at 65.2 A - Clamped voltage during 600 W, 10/1000 µs surge; limits stress on downstream ICs like microcontrollers or RS-485 transceivers. |
| PPPM | 600 W - Peak pulse power handling per standard 10/1000 µs waveform; supports IEC 61000-4-5 Level 3/4 surge immunity. |
| ID @ VWM | 800 µA max - Low reverse leakage preserves efficiency in battery-powered or high-impedance sensor circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or industrial enclosures without thermal shutdown. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" x 0.155" footprint; compatible with automated pick-and-place and J-STD-002 soldering. |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, cathode indicated by a band on the body. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per datasheet Fig. 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V rail); band-marked end enables unambiguous PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without degradation. |
| Glass-passivated chip junction | Ensures stable VBR and low leakage over temperature and lifetime; critical for long-term reliability in industrial deployments. |
| MSL Level 1 rating (260 °C peak) | Enables single-reflow assembly without moisture-related popcorning or delamination. |
| AEC-Q101 qualification option (HE3/HM3 suffixes) | Validates suitability for automotive powertrain and body electronics where failure modes must meet stringent stress testing. |
| Low profile (0.096" height max) | Reduces board stack height in space-constrained modules such as USB-C PD adapters or IoT edge nodes. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) from inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ADC input to clamp fast-rising transients before they saturate the converter. Use Value: Prevents ADC saturation and firmware lockup during relay coil de-energization, maintaining system uptime in 24/7 operations. |
Use Scenario: Safeguarding LIN bus transceiver power pins against load dump and jump-start surges in door module ECUs. IC Role / Device Role / Timing Role: Primary rail protector on 12 V supply input, triggered within <1 ns to limit voltage excursion below 13.2 V. Use Value: Eliminates need for secondary LDO overvoltage cutoff, reducing BOM count and improving startup reliability after battery replacement. |
| USB Power Delivery Adapter | Consumer Smart Home Hub |
Use Scenario: Clamping induced surges on 5 V/9 V/15 V/20 V PD output rails caused by cable hot-plug or ESD discharge. IC Role / Device Role / Timing Role: Final-stage TVS on each output rail, positioned after DC-DC converter and before connector to absorb residual transients. Use Value: Maintains USB-IF compliance by limiting conducted emissions and preventing port disablement during repeated plug/unplug cycles. |
Use Scenario: Shielding Zigbee/Z-Wave RF transceiver power inputs from electrostatic discharge during user handling of smart switches or sensors. IC Role / Device Role / Timing Role: Low-leakage TVS on 3.3 V supply rail, selected for <800 µA ID to avoid draining coin-cell backup during sleep mode. Use Value: Extends shelf life and field battery life while preserving RF sensitivity through consistent supply rail integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-E3/52 | Same electrical specs, RoHS-compliant commercial grade, tape-and-reel packaging (750 pcs/7″ reel). | No AEC-Q101 qualification; suitable for non-automotive industrial or consumer use. | Select when cost-sensitive volume production requires standard commercial-grade assurance without automotive validation overhead. |
| SMBJ5.0AHE3_B/H | Identical VWM/VBR/VC/PPPM, but AEC-Q101 qualified and RoHS-compliant; same SMB package. | Validated for automotive under-hood environments (–40 °C to +125 °C ambient, extended life testing). | Choose for body electronics, lighting modules, or ADAS subsystems requiring OEM-compliant component traceability and stress screening. |
Compared with SMBJ5.0A/52, the SMBJ5.0A-E3/52 offers identical protection performance at lower qualification cost, while SMBJ5.0AHE3_B/H adds automotive-grade reliability with no layout or schematic change - enabling scalable platform design across consumer and automotive product lines.
Availability
SMBJ5.0A/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and USB power delivery adapters requiring stable component supply, consistent lead-time visibility, and full traceability from wafer lot to shipment.
Supply support for SMBJ5.0A/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, power efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in compact surface-mount formats, engineered for automotive, industrial, and computing applications demanding repeatable clamping performance and AEC-Q101 compliance.
FAQ
What is the maximum clamping voltage of SMBJ5.0A/52 under a 600 W surge?
The SMBJ5.0A/52 clamps to a maximum of 9.2 V at its rated peak pulse current of 65.2 A, measured using the standardized 10/1000 µs waveform. This VC value is guaranteed across the full operating temperature range and ensures downstream ICs see less than 10 V during worst-case transients - critical for protecting 5 V logic and analog front-ends in SMBJ5.0A/52-based designs.
Does SMBJ5.0A/52 have automotive qualification?
The base SMBJ5.0A/52 part is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the functionally identical SMBJ5.0AHE3_B/H variant with full AEC-Q101 qualification for automotive applications. Both share identical VWM, VBR, VC, and package - only the suffix and qualification documentation differ. Engineers selecting SMBJ5.0A/52 for automotive use should specify the HE3 or HM3 suffix variants.
How does the SMBJ5.0A/52 compare to SMAJ5.0A in terms of power handling?
The SMBJ5.0A/52 delivers 600 W peak pulse power, whereas the SMAJ5.0A is rated for 400 W under the same 10/1000 µs waveform. This 50 % higher power capacity allows SMBJ5.0A/52 to withstand more severe surges - such as those from inductive load switching in motor drives - without degradation. The larger SMB package also provides better thermal dissipation than the smaller SMA (DO-214AC) outline used by SMAJ5.0A.
What is the reverse leakage current specification for SMBJ5.0A/52 at its 5.0 V stand-off voltage?
The SMBJ5.0A/52 exhibits a maximum reverse leakage current (ID) of 800 µA at VWM = 5.0 V and TA = 25 °C. This low leakage preserves power efficiency in always-on circuits and avoids false triggering in high-impedance monitoring paths - a key advantage over higher-leakage alternatives when designing battery-backed or energy-harvesting SMBJ5.0A/52 applications.
Can SMBJ5.0A/52 be used in bidirectional protection configurations?
No - SMBJ5.0A/52 is strictly unidirectional, with polarity marked by a cathode band. For bidirectional protection, Vishay specifies the SMBJ5.0CA variant, which has symmetrical breakdown in both directions and no polarity marking. Using SMBJ5.0A/52 in AC or floating signal lines risks forward conduction and failure; correct selection requires matching device polarity to circuit topology in all SMBJ5.0A/52 implementations.
SMBJ5.0A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ5.0A/52 FAQ
1.How can I place an order for SMBJ5.0A/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0A/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 SMBJ5.0A/52 reliable?
The price and inventory of SMBJ5.0A/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0A/52 is usually 5 days.
3.What payment methods are accepted for SMBJ5.0A/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0A/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0A/52?
SMBJ5.0A/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0A/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 SMBJ5.0A/52?
For technical support, including SMBJ5.0A/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0A/52 requirements.
6.How does Aetrix verify that SMBJ5.0A/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0A/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 SMBJ5.0A/52 meets industry standards.
7.What is the process for return or replacement of SMBJ5.0A/52?
All SMBJ5.0A/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0A/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 SMBJ5.0A/52 part is unused and in its original packaging.
Return procedure for SMBJ5.0A/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0A/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 …
