My Inquiry
My Account
Taiwan Semiconductor Corporation P6SMB47H
- Part No.:
- P6SMB47H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47H.pdf
- Description:
- 600W, 47V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,377
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB47H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 42.3–51.7V, stand-off voltage of 38.1V, and clamping voltage of 67.8V at 9.2A peak pulse current; it protects automotive lighting and industrial control circuits against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB47H datasheet, P6SMB47H pinout, P6SMB47H application, or P6SMB47H equivalent, key selection criteria include its DO-214AA (SMB) package, AEC-Q101 qualification, 1μA max reverse leakage at VWM, <1.0ps response time, and compliance with J-STD-020 Level 1 moisture sensitivity.
Technical Context
The P6SMB47H uses a glass-passivated silicon junction to achieve fast transient suppression with low capacitance and stable clamping behavior under 10/1000μs surge waveforms. Its thermal design supports 150°C maximum junction temperature and features RθJC = 10°C/W and RθJA = 55°C/W for reliable power dissipation in compact PCB layouts.
It operates as a unidirectional clamp-cathode-banded-requiring correct polarity placement in series with protected IC inputs or power rails. The device meets ISO 7637-2 immunity requirements for automotive electronics and delivers consistent clamping performance across -55°C to +150°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 42.3V / 51.7V - defines guaranteed breakdown initiation window under 1mA test current |
| VWM | 38.1V - maximum continuous reverse working voltage before leakage exceeds 1μA |
| VC@IPPM | 67.8V @ 9.2A - clamped voltage during 10/1000μs surge, limiting stress on downstream components |
| PPPSM | 600W - peak pulse power rating determines transient energy absorption capability |
| TJ max | +150°C - enables operation in under-hood automotive environments without derating |
| Response time | <1.0ps - ensures suppression activates before transient-induced damage occurs |
| Moisture sensitivity | Level 1 per J-STD-020 - allows standard SMT reflow without baking preconditioning |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode indicated by band; dimensions conform to JEDEC DO-214AA standard with 0.090g mass and UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection | Connected to signal/power line being safeguarded; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under thermal stress |
| Clamping ratio (VC/VBR) | ~1.33 - low ratio indicates efficient voltage limiting with minimal overshoot margin |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ESD-like noise) |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained designs |
Applications
| Automotive Lighting Systems | Industrial PLC I/O Protection |
|---|---|
Use Scenario: LED headlamp drivers exposed to load-dump transients during battery disconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground to clamp 12V system surges up to ±100V. Use Value: Limits voltage to ≤67.8V during 9.2A 10/1000μs pulses, preventing gate oxide rupture in MOSFET drivers. | Use Scenario: Digital input modules receiving 24V DC signals from field sensors in factory automation. IC Role / Device Role / Timing Role: Standoff protection at connector entry point, absorbing EFT bursts per IEC 61000-4-4. Use Value: Maintains 38.1V working margin while suppressing 4kV EFT pulses with sub-nanosecond response. |
| Automotive Body Control Modules | Power Supply Input Stage |
Use Scenario: CAN/LIN transceiver power rails subjected to ISO 7637-2 Pulse 2b (battery feed interruption). IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5V/3.3V regulator input, placed upstream of LDOs. Use Value: Prevents regulator shutdown or latch-up by clamping transients before they exceed absolute maximum ratings. | Use Scenario: AC-DC adapter secondary-side output filtering where 47V-rated DC bus requires surge margin. IC Role / Device Role / Timing Role: Secondary-side TVS across bulk capacitor to absorb reflected switching spikes. Use Value: Absorbs 600W peak energy without degradation, enabling single-device protection instead of RC snubber networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47A | Same DO-214AA package; bidirectional variant with symmetric clamping in both polarities | Required where bidirectional transients (e.g., data lines) or AC-coupled signals need protection | Select SMBJ47A only if polarity-agnostic clamping is needed; P6SMB47H offers lower leakage and tighter VBR tolerance for DC rail use |
| 1.5SMC47A | Higher 1500W rating in larger DO-214AB (SMC) package; VC = 77V @ 19.5A | Suitable for higher-energy transients where board space permits larger footprint | Choose 1.5SMC47A when surge energy exceeds 600W limits; P6SMB47H provides better density and AEC-Q101 validation for automotive PCBs |
Compared with SMBJ47A and 1.5SMC47A, the P6SMB47H delivers optimal balance of AEC-Q101 compliance, DO-214AA footprint efficiency, and precise unidirectional clamping for 12V/24V automotive and industrial power rails.
Availability
P6SMB47H is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O protection, and body control module designs requiring stable component supply with full traceability and lifecycle management.
Supply support for P6SMB47H 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability protection devices and power management solutions.
The P6SMB47H belongs to TSC's AEC-Q101-qualified P6SMBxH series of 600W SMB-packaged TVS diodes, engineered specifically for robust transient immunity in automotive and harsh-environment industrial applications.
FAQ
What is the breakdown voltage range of the P6SMB47H?
The P6SMB47H has a specified breakdown voltage (VBR) range of 42.3V to 51.7V at 1mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable turn-on during overvoltage events while maintaining sufficient margin above its 38.1V stand-off voltage. The P6SMB47H achieves this performance using a glass-passivated junction for stable parametric consistency across temperature and lifetime.
Is the P6SMB47H suitable for automotive applications?
Yes, the P6SMB47H is AEC-Q101 qualified and explicitly designed for automotive use, meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements. Its DO-214AA package, -55°C to +150°C operating range, and J-STD-020 Level 1 moisture sensitivity make it appropriate for under-hood and body-control module deployments. The P6SMB47H is commonly used in LED lighting drivers and CAN transceiver power rails.
What is the clamping voltage of the P6SMB47H under peak pulse conditions?
The P6SMB47H clamps to a maximum of 67.8V at 9.2A peak pulse current (IPPM) under the standard 10/1000μs waveform. This value represents the upper limit of voltage seen by protected circuitry during surge events and is critical for ensuring downstream ICs remain within their absolute maximum ratings. The P6SMB47H achieves this with a clamping ratio of approximately 1.33 relative to its nominal VBR.
Does the P6SMB47H have polarity markings, and how is it oriented on the PCB?
Yes, the P6SMB47H is unidirectional and marked with a cathode band on the DO-214AA package body. During PCB layout, the banded end must connect to the line being protected (e.g., 12V rail), while the anode connects to ground. Incorrect orientation prevents clamping action and may cause catastrophic failure under reverse bias. The P6SMB47H's polarity marking aligns with JEDEC DO-214AA mechanical standards.
How does the P6SMB47H compare to the P6SMB47AH variant?
The P6SMB47AH offers tighter VBR tolerance (44.7–49.4V vs. 42.3–51.7V for P6SMB47H) and slightly higher stand-off voltage (40.2V vs. 38.1V), resulting in improved noise immunity for precision 47V systems. Both share identical package, power rating, and AEC-Q101 qualification. The P6SMB47H remains preferred for cost-sensitive applications where broader VBR spread is acceptable, while P6SMB47AH suits designs demanding tighter voltage control.
P6SMB47H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- Power - Peak Pulse:
- 600W
- 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)
P6SMB47H FAQ
1.How can I place an order for P6SMB47H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47H 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 P6SMB47H reliable?
The price and inventory of P6SMB47H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47H is usually 5 days.
3.What payment methods are accepted for P6SMB47H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47H?
P6SMB47H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47H 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 P6SMB47H?
For technical support, including P6SMB47H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47H requirements.
6.How does Aetrix verify that P6SMB47H is sourced from the original manufacturer or authorized distributors?
All P6SMB47H 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 P6SMB47H meets industry standards.
7.What is the process for return or replacement of P6SMB47H?
All P6SMB47H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47H, 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 P6SMB47H part is unused and in its original packaging.
Return procedure for P6SMB47H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47H 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
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…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
