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Renesas RKZ16TWAQE#H1
- Part No.:
- RKZ16TWAQE#H1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ16TWAQE#H1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
RKZ16TWAQE#H1 from Renesas Electronics is a silicon planar bi-directional Zener diode designed for transient voltage suppression on bidirectional signal lines, featuring a nominal zener voltage of 16 V (14.5–17.5 V at 1 mA), 200 mW power dissipation, 30 pF capacitance at 0 V, and 30 kV ESD immunity per IEC 61000-4-2 - widely deployed for CAN bus line protection in automotive ECUs.
For engineers reviewing the RKZ16TWAQE#H1 datasheet, RKZ16TWAQE#H1 pinout, RKZ16TWAQE#H1 application, or RKZ16TWAQE#H1 equivalent, key selection criteria include bidirectional clamping capability, low capacitance for high-speed data integrity, automotive-grade reliability, and CMPAK package compatibility with automated SMT assembly.
Technical Context
This device operates as a symmetrical avalanche clamp, delivering identical forward and reverse breakdown behavior to protect differential or bidirectional interfaces without polarity constraints. Its 30 kV ESD rating applies in both directions, with failure defined as IR > 0.1 µA at VR = 12 V after 10 pulses.
The RKZ16TWAQE#H1 is characterized at 1 mA test current with a 40 ms pulse, ensuring stable clamping under short-duration transients. Its 30 pF junction capacitance at 0 V and 1 MHz enables use on CAN FD (up to 5 Mbps) and legacy CAN (125 kbps–1 Mbps) without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.5–17.5 V at IZ = 1 mA; defines bidirectional clamping threshold for overvoltage events on CAN H/L lines |
| Power Dissipation (Pd) | 200 mW; limits sustained energy absorption capability during repetitive surges |
| Junction Temperature (Tj) | 150 °C maximum; supports operation in under-hood automotive environments |
| Capacitance (C) | 30 pF at VR = 0 V, f = 1 MHz; preserves signal rise/fall times on high-speed CAN buses |
| ESD Capability | 30 kV per IEC 61000-4-2 (±), 150 pF/330 Ω; meets automotive OEM immunity requirements |
| Reverse Current (IR) | ≤ 0.1 µA at VR = 12 V; ensures minimal leakage during normal bus operation |
Pinout & Package
CMPAK (JEITA code PTSP0003ZB-A, Renesas code N8) is a 3-pin surface-mount package measuring 2.0 × 1.25 × 0.9 mm (max), optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | One terminal of symmetrical Zener structure; connected to CAN H or CAN L depending on layout |
| 2 | Cathode (K) | Second terminal of symmetrical Zener structure; forms bidirectional clamp pair with Pin 1 |
| 3 | Case / Heat Sink | Exposed thermal pad (connected internally to cathode); improves thermal dissipation and grounding |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional Zener Structure | Identical forward/reverse breakdown enables single-device protection of differential bus lines without polarity concerns |
| Automotive-Qualified Construction | Rated for –55 °C to +150 °C storage and operation; compliant with AEC-Q101 stress test requirements |
| Low-Junction Capacitance | 30 pF ensures <1% signal attenuation on 1 Mbps CAN waveforms and maintains timing margins for CAN FD |
| High ESD Robustness | 30 kV contact discharge rating exceeds ISO 10605 (30 kV air/25 kV contact) for automotive electronics |
Applications
| Automotive CAN Bus Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting CAN H and CAN L lines in engine control units, body controllers, and ADAS modules against ESD and load dump transients. IC Role / Device Role / Timing Role: Bidirectional TVS diode providing low-clamping-voltage surge suppression without affecting 125 kbps–5 Mbps data integrity. Use Value: Eliminates need for separate unidirectional devices per line, reducing BOM count and PCB area by 50% versus dual-diode solutions. | Use Scenario: Safeguarding RS-485/RS-422 transceivers in factory automation PLCs and motor drives exposed to cable-induced surges. IC Role / Device Role / Timing Role: Symmetrical clamping element placed across differential pairs to limit common-mode and differential-mode transients. Use Value: Maintains signal fidelity up to 20 Mbps due to 30 pF capacitance and fast response time (<1 ns). |
| Automotive LIN Bus Protection | Medical Diagnostic Equipment Interfaces |
Use Scenario: Shielding LIN bus nodes in door modules and seat controls from battery disconnect spikes and ESD events. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 µA) bidirectional clamp operating below LIN's 19.5 V max supply rail. Use Value: Prevents false wake-up or reset events while drawing negligible quiescent current during sleep mode. | Use Scenario: Protecting USB-to-CAN adapters and patient monitor communication ports from handling-related ESD in clinical environments. IC Role / Device Role / Timing Role: IEC 61000-4-2-compliant transient suppressor integrated into medical-grade isolation barriers. Use Value: Achieves 30 kV ESD immunity without compromising creepage/clearance distances required for Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional Zener TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF16AT1G (ON Semiconductor) | Same 16 V nominal VZ, but 200 mW Pd and 35 pF C; SOD-123FL package (larger footprint) | Higher capacitance may degrade >2 Mbps CAN FD eye diagrams; requires PCB redesign for footprint | Select when legacy SOD-123FL placement exists and 35 pF is acceptable for target data rate |
| TPD2E001DRYR (Texas Instruments) | Lower 12 V VZ, 500 mW Pd, 12 pF C; dual-channel array in UQFN-6 | Designed for USB/USB-C; not rated for automotive temperature range or IEC 61000-4-2 30 kV | Prefer for consumer electronics with space constraints and lower voltage rails; not suitable for automotive CAN |
Compared with SMF16AT1G and TPD2E001DRYR, the RKZ16TWAQE#H1 uniquely balances automotive-grade temperature range, 30 kV ESD robustness, and 30 pF capacitance in a compact CMPAK package - making it the only option qualified for AEC-Q101-compliant CAN bus protection at 5 Mbps.
Availability
RKZ16TWAQE#H1 is available at Aetrix Electronics and suitable for automotive ECU design, industrial fieldbus interface development, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for RKZ16TWAQE#H1 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and mixed-signal ICs for automotive, industrial, and infrastructure markets.
The RKZ16TWAQE#H1 belongs to Renesas' CMPAK-series bi-directional Zener TVS portfolio, engineered specifically for high-reliability transient suppression on automotive serial buses including CAN, LIN, and FlexRay.
FAQ
What is the exact zener voltage tolerance of RKZ16TWAQE#H1 at 1 mA test current?
The RKZ16TWAQE#H1 has a specified zener voltage range of 14.5 V to 17.5 V at IZ = 1 mA and 40 ms pulse condition, yielding ±15.6% tolerance around the nominal 16 V rating. This wide tolerance accommodates process variation while maintaining effective clamping for automotive transients defined in ISO 7637-2 and ISO 16750-2.
Does RKZ16TWAQE#H1 meet AEC-Q101 qualification requirements?
Yes, the RKZ16TWAQE#H1 is built to AEC-Q101 stress test standards for discrete semiconductors. Its guaranteed operation from –55 °C to +150 °C junction temperature, 30 kV ESD rating, and automotive-grade construction confirm compliance - though final qualification documentation must be obtained directly from Renesas for audit purposes.
Can RKZ16TWAQE#H1 be used for protecting USB 2.0 data lines?
No, RKZ16TWAQE#H1 is not recommended for USB 2.0 protection. Its 30 pF capacitance exceeds the 5–10 pF typical limit for full-speed (12 Mbps) and high-speed (480 Mbps) USB signals, risking signal integrity degradation. Use dedicated low-capacitance USB TVS arrays like SP1003 or ESD56081 instead.
What is the thermal pad connection requirement for RKZ16TWAQE#H1 in the CMPAK package?
The exposed thermal pad (Pin 3) of RKZ16TWAQE#H1 is internally connected to the cathode and must be soldered to a PCB copper pour tied to the system ground plane. This connection provides critical thermal conduction and reduces junction-to-board thermal resistance by ~40%, enabling reliable 200 mW power dissipation during transient events.
How does RKZ16TWAQE#H1 differ from standard unidirectional Zener diodes in surge protection?
RKZ16TWAQE#H1 features a symmetrical silicon planar structure that delivers identical breakdown characteristics in both forward and reverse bias - essential for protecting bidirectional differential buses like CAN where voltage polarity reverses during signaling. Unidirectional Zeners would require two devices per line and fail to clamp negative transients on the "anode-side" conductor.
RKZ16TWAQE#H1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RKZ16TWAQE#H1 FAQ
1.How can I place an order for RKZ16TWAQE#H1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ16TWAQE#H1 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 RKZ16TWAQE#H1 reliable?
The price and inventory of RKZ16TWAQE#H1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ16TWAQE#H1 is usually 5 days.
3.What payment methods are accepted for RKZ16TWAQE#H1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ16TWAQE#H1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ16TWAQE#H1?
RKZ16TWAQE#H1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ16TWAQE#H1 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 RKZ16TWAQE#H1?
For technical support, including RKZ16TWAQE#H1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ16TWAQE#H1 requirements.
6.How does Aetrix verify that RKZ16TWAQE#H1 is sourced from the original manufacturer or authorized distributors?
All RKZ16TWAQE#H1 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 RKZ16TWAQE#H1 meets industry standards.
7.What is the process for return or replacement of RKZ16TWAQE#H1?
All RKZ16TWAQE#H1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ16TWAQE#H1, 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 RKZ16TWAQE#H1 part is unused and in its original packaging.
Return procedure for RKZ16TWAQE#H1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ16TWAQE#H1 Tags
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