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Diodes Incorporated SMBJ54A-13-F
- Part No.:
- SMBJ54A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ54A-13-F.pdf
- Description:
- TVS DIODE 54VWM 87.1VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:14,023
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Product details
Overview
SMBJ54A-13-F from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode in SMB package, designed for overvoltage protection of DC power rails and signal lines. It features a 54V reverse standoff voltage (VRWM), 60V minimum breakdown voltage (VBR), 87.1V maximum clamping voltage (VC) at 6.9A peak pulse current, and operates across –55°C to +150°C junction temperature range - deployed in industrial power supplies and automotive ECUs.
For engineers reviewing the SMBJ54A-13-F datasheet, SMBJ54A-13-F pinout, SMBJ54A-13-F application, or SMBJ54A-13-F equivalent, key selection criteria include clamping performance under 8.3ms surge, unidirectional polarity handling, SMB footprint compatibility, and RoHS-compliant lead-free plating for reflow assembly.
Technical Context
This TVS diode operates as a fast-acting shunt protector that remains high-impedance below VRWM = 54V and avalanches sharply above VBR ≥ 60V to clamp transients. Its glass-passivated silicon die ensures stable leakage (<5µA at VRWM) and repeatable breakdown behavior across temperature.
The device responds to standardized 10/1000µs waveform surges with VC = 87.1V at IPP = 6.9A, delivering predictable energy absorption without thermal runaway. Its SMB package supports 5.0W steady-state dissipation at TL = +75°C and complies with J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 8.3ms half-sine surge without failure |
| Reverse Standoff Voltage | 54V - maximum continuous DC voltage before conduction begins |
| Breakdown Voltage | 60.0–69.0V @ 1mA - precise avalanche onset for reliable clamping threshold |
| Clamping Voltage | 87.1V @ 6.9A - limits downstream circuit voltage during surge event |
| Junction Temperature Range | –55°C to +150°C - validated operation in under-hood automotive and industrial environments |
| Leakage Current | ≤5.0µA @ 54V - negligible standby power loss and signal integrity impact |
| Package | SMB - surface-mount outline with 5.00–5.59mm body length, compatible with IPC-7351B footprint |
Pinout & Package
Package: SMB (Surface Mount Body), molded plastic case rated UL 94V-0, 0.1g mass, matte tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band (Marked End) | Anode Reference / Polarity Indicator | Identifies cathode terminal; connects to protected line; anode ties to ground or lower-potential rail |
| Unmarked End | Anode | Low-impedance return path to reference plane during clamping; must be routed with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| 600W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4kV/2Ω) on 24V/48V systems |
| Glass Passivated Die | Ensures long-term parameter stability and resistance to humidity-induced degradation |
| Lead-Free & Halogen-Free | Meets RoHS 2 and JEDEC JS709C green standards; no Br/Cl >900ppm or Sb >1000ppm |
| Uni-Directional Configuration | Provides asymmetric clamping ideal for DC-biased signal lines and positive-rail protection |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24V digital input channels from load dump and inductive switching transients in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt TVS element placed between field input and optocoupler input, clamping spikes within 1ns response time. Use Value: Limits voltage to ≤87.1V during 6.9A surge, preventing damage to upstream interface ICs and maintaining functional safety integrity. | Use Scenario: Safeguarding LIN bus transceiver power pins against battery line transients during cold-cranking and jump-start events. IC Role / Device Role / Timing Role: Unidirectional clamp on VCC rail of LIN PHY, referenced to chassis ground with low-inductance layout. Use Value: Maintains transceiver operation during 100V/50ms load dump by holding rail voltage below absolute maximum rating. |
| Telecom Power Supply Input | Renewable Energy Inverter DC Link |
Use Scenario: Secondary overvoltage protection on 48V telecom rectifier output feeding backplane distribution. IC Role / Device Role / Timing Role: Final-stage TVS parallel to bulk capacitor, absorbing residual surges escaping primary MOV/clamp stage. Use Value: Clamps residual 1kV/0.5J transients to safe levels without degrading capacitor ESR or derating converter efficiency. | Use Scenario: DC link surge suppression in solar string inverters exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional-capable design not used; unidirectional SMBJ54A-13-F applied across +DC and GND to protect gate drivers. Use Value: Withstands repeated 600W pulses while maintaining <5µA leakage at 54V, ensuring minimal standby loss in 24/7 operation. |
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-E3/52 (Vishay) | Same SMB package, identical VRWM/VBR/VC specs, but lead finish is SnPb (non-RoHS) | Not suitable for new RoHS-compliant designs; requires exemption documentation | Select only if legacy SnPb assembly process mandates compatibility |
| P6SMB54A (ON Semiconductor) | Identical electrical specs and SMB footprint; differs in marking code and tape/reel packaging (3000 vs 5000 pcs/reel) | Drop-in replacement in layout; same thermal derating and surge capability | Preferred when sourcing flexibility or dual-source assurance is required |
Compared with SMBJ54A-13-F, the Vishay part lacks RoHS compliance and requires exemption handling, while the ON Semiconductor P6SMB54A offers identical protection performance with alternate packaging - making it a direct drop-in alternative for volume production continuity.
Availability
SMBJ54A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom power supply input stages requiring stable component supply and full RoHS compliance.
Supply support for SMBJ54A-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability DC rail and interface line protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the polarity configuration of SMBJ54A-13-F?
SMBJ54A-13-F is a unidirectional TVS diode, indicated by the absence of "C" in its part number. It features a cathode band marking on one end, with the banded terminal serving as the cathode - connected to the line being protected - and the unmarked end as the anode, tied to ground or reference potential.
Can SMBJ54A-13-F be used in bidirectional signal line protection?
No - SMBJ54A-13-F is strictly unidirectional and unsuitable for AC or bidirectional signal paths. For such applications, the bi-directional variant SMBJ54CA-13-F must be selected, which has symmetrical clamping in both polarities and no cathode marking.
What is the maximum allowable PCB trace inductance for effective clamping?
To achieve specified clamping voltage (87.1V), total loop inductance - including TVS leads, traces, and ground path - must remain below 15nH. This typically requires direct placement adjacent to the protected connector or IC, with wide, short ground traces and optional ground-plane stitching vias near the anode terminal.
How does SMBJ54A-13-F perform under repeated surge stress?
The device is rated for non-repetitive surges per JEDEC standards (max 4 pulses/minute). Under repetitive conditions, derating is required: peak pulse power drops to 4.8W/°C above +25°C ambient, and cumulative energy exposure must stay below 600W·ms per pulse to avoid parametric shift or thermal failure.
SMBJ54A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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:
- SMB
SMBJ54A-13-F FAQ
1.How can I place an order for SMBJ54A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ54A-13-F 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 SMBJ54A-13-F reliable?
The price and inventory of SMBJ54A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ54A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ54A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ54A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ54A-13-F?
SMBJ54A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ54A-13-F 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 SMBJ54A-13-F?
For technical support, including SMBJ54A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ54A-13-F requirements.
6.How does Aetrix verify that SMBJ54A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ54A-13-F 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 SMBJ54A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ54A-13-F?
All SMBJ54A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ54A-13-F, 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 SMBJ54A-13-F part is unused and in its original packaging.
Return procedure for SMBJ54A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ54A-13-F Tags
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