My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ54-E3/52
;;2.jpg)
- Part No.:
- SMBJ54-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ54-E3/52.pdf
- Description:
- TVS DIODE 54VWM 96.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,159
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ54-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 6.9 A peak pulse current (IPPM) under 10/1000 µs waveform, and clamps transients to ≤87.1 V - used in automotive power supply inputs, industrial sensor interfaces, and telecom line protection.
For engineers reviewing the SMBJ54-E3/52 datasheet, SMBJ54-E3/52 pinout, SMBJ54-E3/52 application, or SMBJ54-E3/52 equivalent, key selection criteria include its 600 W peak pulse power rating, low 0.057 %/°C VBR temperature coefficient, RoHS-compliant matte tin-plated leads, and suitability for automated SMT assembly on PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS diode operates as a unidirectional clamping device: reverse-biased during normal operation (blocking up to 54 V), then avalanche-conducting within nanoseconds when transient voltage exceeds VBR. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance across temperature (-55 °C to +150 °C).
The SMBJ54-E3/52 is rated for 600 W peak pulse power (10/1000 µs), derates linearly above 25 °C with RθJA = 100 °C/W, and meets MSL Level 1 per J-STD-020 (reflow peak 260 °C). Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 60.0 V / 66.3 V at IT = 1 mA - guaranteed avalanche onset range; determines minimum overvoltage threshold. |
| VC @ IPPM | ≤87.1 V at 6.9 A - clamped voltage during 10/1000 µs surge; directly limits stress on downstream ICs. |
| PPPM | 600 W - peak transient energy handling capacity; enables protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 6.9 A - maximum non-repetitive surge current; defines minimum trace width and fuse coordination. |
| TJ max. | +150 °C - maximum junction temperature; supports operation in under-hood automotive or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - standardized 2-pin SMD outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with JEDEC MS-012. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential point; completes clamping path during transient events. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 54 V rail); conducts avalanche current when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy transients like ISO 7637-2 Pulse 5a without external series impedance. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across 1000+ thermal cycles and humidity exposure. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; eliminates production delays in high-volume SMT lines. |
| RoHS-compliant, matte tin plating | Supports lead-free assembly with J-STD-002B-compliant wetting and zero whisker risk (JESD 201 Class 2). |
| 0.057 %/°C VBR tempco | Maintains tight clamping window across automotive (-40 °C to +125 °C ambient) and industrial temperature ranges. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power rail and ground, activated within <1 ns of overvoltage event. Use Value: Limits rail voltage to ≤87.1 V during 600 W surges, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: 4–20 mA analog sensor outputs routed through noisy factory floors with EMI and inductive switching noise. IC Role / Device Role / Timing Role: Reverse-biased TVS shunting transients on signal line to ground, preserving signal integrity below 54 V. Use Value: Clamps fast-rising spikes (<1 ns response) to protect precision ADC front-ends and op-amp buffers without loading the 4–20 mA loop. |
| Telecom DC Power Feeds | Consumer Device USB Power Ports |
|
Use Scenario: -48 V DC telecom rectifier outputs subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input stage, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 600 W pulses while maintaining VC ≤87.1 V, ensuring downstream DC/DC converters remain within absolute maximum ratings. |
Use Scenario: 5 V USB Type-A/C ports in set-top boxes and smart displays exposed to ESD and hot-plug transients. IC Role / Device Role / Timing Role: Secondary-level TVS after primary ESD diodes, handling higher-energy surges that bypass front-end protection. Use Value: Provides 6.9 A surge current handling at 54 V stand-off, extending system-level immunity beyond IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54A-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free BOM compliance is mandated (e.g., EU public infrastructure projects). | Choose SMBJ54A-M3/52 when halogen-free material declaration is required; otherwise, SMBJ54-E3/52 offers standard commercial-grade compliance. |
| SMCJ54A-E3/52 | Same VWM/VBR/VC, but SMC (DO-214AB) package - larger footprint (7.11 mm × 6.22 mm) and 1500 W PPPM. | Used where higher surge energy (e.g., outdoor telecom cabinets) demands >600 W rating and board space permits larger package. | Select SMCJ54A-E3/52 only if system-level surge testing requires >600 W capability; SMBJ54-E3/52 remains optimal for space-constrained 600 W applications. |
Compared with SMBJ54A-M3/52, SMBJ54-E3/52 differs only in halogen content and whisker test classification; compared with SMCJ54A-E3/52, it trades 2.5× surge power for 40 % smaller PCB area and lower thermal resistance to ambient (100 vs. 50 °C/W), making it preferable for dense, thermally constrained layouts.
Availability
SMBJ54-E3/52 is available at Aetrix Electronics and suitable for automotive power inputs, industrial sensor interfaces, telecom DC feeds, and consumer USB port protection requiring stable component supply and full traceability.
Supply support for SMBJ54-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The SMBJ series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom power and signal lines where fast response and stable clamping are critical.
FAQ
What is the maximum clamping voltage of SMBJ54-E3/52 under a 10/1000 µs surge?
The SMBJ54-E3/52 clamps to a maximum of 87.1 V when subjected to its rated 6.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across manufacturing lots and temperature range (-55 °C to +150 °C), and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMBJ54-E3/52 suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ54-E3/52 is the commercial-grade RoHS-compliant version. For AEC-Q101 qualified use, select SMBJ54HE3_B/H or SMBJ54HM3_B/H - these carry the HE3 or HM3 suffix, undergo extended stress testing, and are certified for under-hood automotive environments per AEC-Q101 Rev D.
What is the thermal resistance from junction to ambient for SMBJ54-E3/52?
The SMBJ54-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air conditions and defines the temperature rise per watt of steady-state power dissipation.
Does SMBJ54-E3/52 have bidirectional capability?
No, SMBJ54-E3/52 is strictly unidirectional. Its cathode band marks the terminal that connects to the protected line; it conducts only when the anode is at lower potential than the cathode. For bidirectional protection, use SMBJ54CA-E3/52 - the "CA" suffix denotes symmetrical breakdown in both polarities.
What is the reverse leakage current specification for SMBJ54-E3/52 at its stand-off voltage?
At VWM = 54 V and TA = 25 °C, the SMBJ54-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss and no measurable loading on 54 V DC rails during normal operation.
SMBJ54-E3/52 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 96.3V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
SMBJ54-E3/52 FAQ
1.How can I place an order for SMBJ54-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ54-E3/52 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 SMBJ54-E3/52 reliable?
The price and inventory of SMBJ54-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ54-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ54-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ54-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ54-E3/52?
SMBJ54-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ54-E3/52 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 SMBJ54-E3/52?
For technical support, including SMBJ54-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ54-E3/52 requirements.
6.How does Aetrix verify that SMBJ54-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ54-E3/52 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 SMBJ54-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ54-E3/52?
All SMBJ54-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ54-E3/52, 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 SMBJ54-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ54-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ54-E3/52 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 …
