My Inquiry
My Account
Diodes Incorporated DTVS22SP4UR-7
- Part No.:
- DTVS22SP4UR-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SOD-123F
- Datasheet:
-
DTVS22SP4UR-7.pdf
- Description:
- TVS DIODE 22VWM 35.5VC SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DTVS22SP4UR-7 from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for ESD and surge protection at battery contacts and power rails. It features a 22V standoff voltage (VRWM), 24.4V minimum breakdown voltage (VBR), 35.5V maximum clamping voltage (VC) at 11.3A peak pulse current (IPP), and meets IEC61000-4-2 ±30kV air/contact ESD standards.
For engineers reviewing the DTVS22SP4UR-7 datasheet, DTVS22SP4UR-7 pinout, DTVS22SP4UR-7 application, or DTVS22SP4UR-7 equivalent, this device is selected for compact, high-surge-capability overvoltage protection in space-constrained DC power interfaces where low clamping voltage and robust ESD immunity are critical design requirements.
Technical Context
This TVS operates as a unidirectional clamping device with cathode-anode polarity, triggered when reverse voltage exceeds its 22V standoff rating. Its silicon avalanche structure delivers fast response (<1 ns) to transients and maintains low dynamic impedance during clamping.
The SOD123F package enables high power density (400W peak, 1.5W steady-state) with thermal resistance of 70°C/W junction-to-solder point, supporting reliable operation across –55°C to +150°C ambient conditions without derating below 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 22 V - Maximum continuous reverse operating voltage before significant leakage or conduction begins. |
| Breakdown Voltage (VBR) | 24.4 V min @ 1 mA - Voltage at which device enters avalanche conduction under controlled test conditions. |
| Clamping Voltage (VC) | 35.5 V max @ 11.3 A - Maximum voltage seen across terminals during 10/1000 µs surge, limiting stress on downstream ICs. |
| Peak Pulse Power | 400 W (10/1000 µs) - Transient energy absorption capability without failure under standardized surge waveform. |
| ESD Rating | ±30 kV contact & air (IEC61000-4-2) - Confirmed immunity to human-body-model and system-level electrostatic discharge events. |
| Thermal Resistance (RθJS) | 70 °C/W - Junction-to-solder-point thermal path efficiency, enabling direct PCB heat sinking via cathode pad. |
Pinout & Package
Package: SOD123F - Surface-mount plastic case with molded "Green" compound (UL 94V-0), 0.018 g mass, moisture sensitivity level 1, matte tin-plated copper alloy leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected line (e.g., battery+ or VBUS); conducts during positive transients relative to cathode. |
| Cathode | Reference terminal / Clamping reference node | Connected to ground or lower-potential rail; defines clamping threshold and provides primary thermal path to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power (10/1000 µs) | Enables protection against high-energy surges (e.g., ISO 7637-2 Pulse 1/2a) in automotive and industrial power inputs. |
| ±30 kV IEC61000-4-2 ESD immunity | Eliminates need for external ESD diodes in handheld, portable, and battery-connected interfaces. |
| SOD123F footprint with 70°C/W RθJS | Supports high-density layout while maintaining thermal reliability on standard FR-4 with 2 oz copper pads. |
| Halogen- and antimony-free "Green" construction | Meets global environmental compliance mandates (RoHS 3, JEDEC J-STD-020 Level 1) without performance trade-offs. |
Applications
| Battery Contact Protection | USB Power Input Protection |
|---|---|
Use Scenario: Direct placement across battery terminals (e.g., Li-ion packs in wearables or medical devices) to suppress ESD and load-dump spikes during insertion/removal. IC Role / Device Role / Timing Role: Unidirectional clamping TVS absorbing transient energy before it reaches battery management ICs or fuel gauges. Use Value: Prevents latch-up or permanent damage to sensitive analog front-ends by limiting voltage to ≤35.5 V during 11.3 A surges. | Use Scenario: Integration on VBUS line of USB-C or micro-USB receptacles in portable chargers and accessories. IC Role / Device Role / Timing Role: First-line defense against hot-plug transients and ESD events introduced during cable mating/unmating. Use Value: Maintains signal integrity and prevents port controller reset by clamping surges within 1 ns while occupying <1.9 mm × 1.2 mm PCB area. |
| Automotive Body Control Module (BCM) Inputs | Industrial 24V DC Power Rail Protection |
Use Scenario: Protection of low-voltage sensor inputs (e.g., door lock actuators, interior lighting) exposed to ISO 7637-2 coupled transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of CAN/LIN transceivers or microcontroller GPIOs. Use Value: Ensures functional safety by holding clamped voltage below 35.5 V during 100 V/50 ms load-dump pulses, preserving MCU reset logic. | Use Scenario: Deployment on 24 V DC input rails of programmable logic controllers (PLCs) and motor drives subject to inductive switching noise. IC Role / Device Role / Timing Role: High-power transient absorber shunting surge current away from DC-DC converters and FPGA power supplies. Use Value: Delivers 400 W surge handling in minimal footprint, reducing need for larger DO-214AC packages and saving board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Higher clamping voltage (35.8 V vs. 35.5 V), same 400 W rating, SMA package (larger footprint, higher RθJA = 100°C/W) | Less suitable for ultra-thin portable designs due to 2.4 mm height and reduced thermal efficiency | Select when legacy SMA footprint compatibility is required and thermal margin allows higher junction temperature rise. |
| SMCJ22A | Same 22 V VRWM but rated for 1500 W peak power; significantly larger SMC package (7.1 mm × 6.2 mm) | Used in high-energy industrial systems where PCB space is not constrained and surge levels exceed 400 W | Choose only when validated surge profiles exceed 400 W; avoid in space-limited consumer or automotive modules. |
Compared with SMAJ22A and SMCJ22A, DTVS22SP4UR-7 offers superior thermal performance (70°C/W vs. ≥100°C/W) and smallest PCB footprint among 22 V TVS diodes with ±30 kV ESD rating, making it optimal for miniaturized, thermally demanding applications.
Availability
DTVS22SP4UR-7 is available at Aetrix Electronics and suitable for battery contact protection, USB power input hardening, and automotive body control module (BCM) inputs requiring stable component supply and RoHS-compliant sourcing.
Supply support for DTVS22SP4UR-7 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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and consumer markets.
DTVS22SP4UR-7 belongs to Diodes' DTVS series of ultra-compact TVS diodes engineered specifically for ESD and surge protection in space-constrained, high-reliability DC power interfaces.
FAQ
What is the polarity configuration of DTVS22SP4UR-7?
DTVS22SP4UR-7 is a unidirectional TVS diode with cathode-bar marking indicating the cathode terminal. It conducts in forward bias and clamps reverse transients above its 22 V standoff voltage. The anode connects to the protected line, and the cathode connects to ground or reference potential.
Does DTVS22SP4UR-7 meet automotive qualification standards?
While not AEC-Q200 qualified, DTVS22SP4UR-7 operates across –55°C to +150°C and supports automotive applications such as BCM inputs and infotainment power rails where its ±30 kV ESD rating and 400 W surge capability meet ISO 10605 and ISO 7637-2 Pulse 1/2a requirements when properly laid out.
How does the SOD123F package affect thermal performance?
The SOD123F package delivers 70°C/W junction-to-solder-point thermal resistance due to its optimized copper alloy leadframe and direct cathode thermal path to the PCB. This enables full 400 W surge rating without heatsinking on 2 oz copper pads, unlike larger packages with higher RθJA values.
Can DTVS22SP4UR-7 replace bidirectional TVS diodes in AC-coupled circuits?
No. DTVS22SP4UR-7 is unidirectional and unsuitable for AC signal lines or differential buses like RS-485. It must be used only in DC power or single-ended signal paths where polarity is fixed and reverse conduction is acceptable only during transient clamping.
DTVS22SP4UR-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SOD-123F
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 11.3A (8/20µs)
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
DTVS22SP4UR-7 FAQ
1.How can I place an order for DTVS22SP4UR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DTVS22SP4UR-7 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 DTVS22SP4UR-7 reliable?
The price and inventory of DTVS22SP4UR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DTVS22SP4UR-7 is usually 5 days.
3.What payment methods are accepted for DTVS22SP4UR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DTVS22SP4UR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DTVS22SP4UR-7?
DTVS22SP4UR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DTVS22SP4UR-7 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 DTVS22SP4UR-7?
For technical support, including DTVS22SP4UR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DTVS22SP4UR-7 requirements.
6.How does Aetrix verify that DTVS22SP4UR-7 is sourced from the original manufacturer or authorized distributors?
All DTVS22SP4UR-7 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 DTVS22SP4UR-7 meets industry standards.
7.What is the process for return or replacement of DTVS22SP4UR-7?
All DTVS22SP4UR-7 units undergo pre-shipment inspection (PSI). If there is an issue with DTVS22SP4UR-7, 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 DTVS22SP4UR-7 part is unused and in its original packaging.
Return procedure for DTVS22SP4UR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DTVS22SP4UR-7 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
