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Renesas RD16M(0)-T1B-AT
- Part No.:
- RD16M(0)-T1B-AT
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
RD16M(0)-T1B-AT.pdf
- Description:
- RD16M(0)-T1B-AT - ZENER DIODES 2
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
RD16M(0)-T1B-AT from Renesas Electronics is a 200 mW, 3-pin mini-mold planar zener diode with a nominal zener voltage of 16.35–17.09 V (Class B3), dynamic impedance ≤40 Ω at 5 mA, and reverse current ≤2 μA at 12 V. It serves as a precision voltage reference or surge absorber in low-power analog signal conditioning and power rail stabilization circuits.
For engineers reviewing the RD16M(0)-T1B-AT datasheet, RD16M(0)-T1B-AT pinout, RD16M(0)-T1B-AT application, or RD16M(0)-T1B-AT equivalent, this device is selected for stable 16 V regulation in space-constrained consumer and industrial control modules where thermal derating above 25°C must be accounted for per its P–TA curve.
Technical Context
This zener diode uses a planar silicon process to achieve tight voltage tolerance (±3% typical for Class B3), low dynamic impedance, and repeatable breakdown characteristics. Its SC-59 (JEITA) package supports surface-mount assembly and provides defined thermal resistance for ambient temperature operation up to +125°C before power derating begins.
The device operates within a junction temperature range of −55°C to +150°C and exhibits a positive temperature coefficient (γZ ≈ +0.04 %/°C at 16 V), enabling predictable drift behavior in bias networks. Peak reverse surge capability is rated at 100 W for 10 μs pulses, supporting transient suppression in low-energy interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.35–17.09 V at IZ = 5 mA - defines stable regulation window for 16 V reference designs |
| Dynamic Impedance (ZZ) | ≤40 Ω at IZ = 5 mA - ensures minimal output voltage variation under load current changes |
| Power Dissipation (P) | 200 mW at TA = 25°C - sets maximum continuous DC power in still-air conditions |
| Reverse Current (IR) | ≤2 μA at VR = 12 V - guarantees low leakage in high-impedance bias or sensing nodes |
| Junction Temperature (Tj) | −55°C to +150°C - determines operating envelope for automotive interior or industrial enclosure use |
| Package | SC-59 (JEITA) - 3-pin mini-mold SMT footprint compatible with standard reflow profiles |
| Surge Rating | 100 W (tT = 10 μs) - enables clamping of short-duration ESD or inductive spikes |
Pinout & Package
Package: SC-59 (JEITA), 3-pin mini-mold, dimensions 2.9 × 1.5 × 0.95 mm (L × W × H), with marking "RD16M" on top surface. Pin 1 is NC (no connection), Pin 2 is anode (A), Pin 3 is cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No Connection (NC) | Electrically isolated; must not be soldered or tied to any net to avoid mechanical stress or parasitic coupling |
| Pin 2 | Anode (A) | Forward-biased terminal; connects to lower-potential node when used in reverse-bias regulation configuration |
| Pin 3 | Cathode (K) | Zener breakdown terminal; connects to higher-potential node and carries regulated output current |
Key Features
| Feature | Design Value |
|---|---|
| Planar silicon construction | Ensures consistent breakdown voltage distribution and long-term stability under thermal cycling |
| E24-standard zener voltage grading | Enables precise selection across 16 V nominal point with defined min/max bounds (16.35–17.09 V) |
| Low dynamic impedance (≤40 Ω) | Minimizes regulation error in feedback paths for op-amp references or LDO monitor circuits |
| SC-59 surface-mount package | Supports automated placement and reflow; footprint matches industry-standard 3-pin mini-mold land patterns |
| 100 W transient surge rating | Provides robustness against brief overvoltage events without requiring external TVS devices in low-energy nodes |
Applications
| Reference Voltage Source | Overvoltage Clamp |
|---|---|
|
Use Scenario: Generating a stable 16 V reference for ADC biasing or comparator hysteresis in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix voltage at cathode relative to anode ground. Use Value: Delivers <1% regulation shift over 0–5 mA load range due to ≤40 Ω dynamic impedance, reducing calibration drift. |
Use Scenario: Protecting microcontroller GPIO pins from 24 V field wiring transients in building automation controllers. IC Role / Device Role / Timing Role: Passive clamp limiting voltage excursion to ≤17.1 V during fast-rising surges. Use Value: Absorbs 100 W for 10 μs without failure, eliminating need for larger TVS while fitting same SC-59 footprint. |
| Current Regulator | Waveform Clipper |
|
Use Scenario: Setting constant LED drive current in indicator circuits using resistor-zener bias topology. IC Role / Device Role / Timing Role: Maintains fixed voltage drop to establish predictable emitter/base bias in transistor current source. Use Value: Enables ±3% current accuracy over temperature via tight VZ tolerance and known γZ drift profile. |
Use Scenario: Limiting audio signal peaks in line-level preamplifier stages to prevent op-amp saturation. IC Role / Device Role / Timing Role: Conducts above 16.35 V to clip positive excursions while remaining high-impedance below threshold. Use Value: Provides soft clipping onset with <2 μA leakage at 12 V, preserving signal integrity in high-Z input paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | 14 V nominal, 1 W rating, DO-41 through-hole package | Higher power but larger footprint; unsuitable for space-constrained SMT designs | Select only if board layout allows axial leaded components and >14 V regulation is acceptable |
| BZX55C16 | 16 V nominal, 500 mW rating, DO-35 glass package | Higher power dissipation but fragile glass body and no NC pin - incompatible with automated SMT assembly | Prefer RD16M(0)-T1B-AT for reflow-compatible, NC-isolated, miniaturized designs |
Compared with 1N4744A and BZX55C16, RD16M(0)-T1B-AT offers SC-59 SMT compatibility, a dedicated NC pin for mechanical stability, and tighter 16 V tolerance-making it optimal for compact, high-volume consumer electronics where board space and assembly yield are critical.
Availability
RD16M(0)-T1B-AT is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, current regulation, and waveform clipping applications requiring stable component supply and JEDEC-compliant SMT packaging.
Supply support for RD16M(0)-T1B-AT 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 global semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The RD16M(0)-T1B-AT belongs to Renesas' legacy RD-series zener diodes, designed for cost-sensitive, high-reliability voltage regulation in consumer and industrial equipment operating within standard quality grade requirements.
FAQ
What is the exact zener voltage range for RD16M(0)-T1B-AT?
The RD16M(0)-T1B-AT has a guaranteed zener voltage range of 16.35 V to 17.09 V at 5 mA test current, per Class B3 specification in the official Renesas datasheet D14716EJ7V0DS. This range reflects the tightest tolerance bin for the RD16M family and is measured under pulse conditions (40 ms) to avoid self-heating effects. RD16M(0)-T1B-AT maintains this specification across its qualified operating temperature range.
Is RD16M(0)-T1B-AT RoHS compliant?
Yes, RD16M(0)-T1B-AT meets EU RoHS Directive requirements as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits. RD16M(0)-T1B-AT is suitable for use in environmentally regulated markets including the EU and China.
Can RD16M(0)-T1B-AT replace RD16M-T1B in a design?
Yes, RD16M(0)-T1B-AT is a direct replacement for RD16M-T1B. Both share identical electrical specifications, SC-59 package, pinout (Pin 1 NC, Pin 2 Anode, Pin 3 Cathode), and thermal ratings. The "(0)" suffix denotes a minor internal process revision with no functional or parametric impact. RD16M(0)-T1B-AT maintains full form-fit-function compatibility with RD16M-T1B in all applications.
What is the maximum allowable ambient temperature for full 200 mW operation of RD16M(0)-T1B-AT?
RD16M(0)-T1B-AT delivers its full 200 mW power rating only at TA = 25°C. Above this temperature, power must be linearly derated at 1.6 mW/°C, reaching zero dissipation at 150°C ambient. This derating is defined in Figure 1 (P–TA Rating) of the RD2.0M–RD47M datasheet. RD16M(0)-T1B-AT remains functional up to 150°C junction temperature, but sustained 200 mW operation requires active cooling or reduced ambient.
Does RD16M(0)-T1B-AT have a specified temperature coefficient?
Yes, RD16M(0)-T1B-AT exhibits a positive temperature coefficient (γZ) of approximately +0.04 %/°C at 16 V, as shown in Figure 3 of the datasheet. This translates to ~+6.4 mV/°C drift near nominal VZ, enabling predictable compensation in temperature-sensitive references. RD16M(0)-T1B-AT's γZ is stable across its operating current range and aligns with other B3-class devices in the RD-series.
RD16M(0)-T1B-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59
RD16M(0)-T1B-AT FAQ
1.How can I place an order for RD16M(0)-T1B-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for RD16M(0)-T1B-AT 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 RD16M(0)-T1B-AT reliable?
The price and inventory of RD16M(0)-T1B-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD16M(0)-T1B-AT is usually 5 days.
3.What payment methods are accepted for RD16M(0)-T1B-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD16M(0)-T1B-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD16M(0)-T1B-AT?
RD16M(0)-T1B-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD16M(0)-T1B-AT 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 RD16M(0)-T1B-AT?
For technical support, including RD16M(0)-T1B-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD16M(0)-T1B-AT requirements.
6.How does Aetrix verify that RD16M(0)-T1B-AT is sourced from the original manufacturer or authorized distributors?
All RD16M(0)-T1B-AT 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 RD16M(0)-T1B-AT meets industry standards.
7.What is the process for return or replacement of RD16M(0)-T1B-AT?
All RD16M(0)-T1B-AT units undergo pre-shipment inspection (PSI). If there is an issue with RD16M(0)-T1B-AT, 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 RD16M(0)-T1B-AT part is unused and in its original packaging.
Return procedure for RD16M(0)-T1B-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD16M(0)-T1B-AT Tags
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MMBZ5240B-7-F
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