QQ9937 vs PCF7936AS Comparison
Detailed side-by-side comparison of QQ9937 by Belden and PCF7936AS by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | QQ9937 | PCF7936AS |
|---|---|---|
| Brand | Belden | NXP Semiconductors |
| Category | Cables & Wires | RF Modules |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $12.50 | $1.42 |
| Manufacturer | Belden Inc. | — |
| Product Type | Fast Ethernet Cat5e Data Single-Ended Cordset | Security Transponder (HITAG 2) |
| Cable Category | Cat5e | — |
| Conductor Size | 24-25 AWG | — |
| Conductor Material | Tinned Copper | — |
| Insulation Material | FPE (Foamed Polyethylene) | — |
| Shield Type | Aluminum/Mylar Foil + Tinned Copper Braid (overall) | — |
| Jacket Material | PVC | — |
| Jacket Rating | CM | — |
| Nominal Characteristic Impedance | 100 ohms | — |
| Bandwidth Rating | 100 MHz | — |
| Capacitance (typical) | 13 pF/ft | — |
| Operating Temperature | -30C to +75C | -40C to +85C (industrial / automotive) |
| RoHS Status | Compliant | Compliant |
| Cable Family | DataTuff / Industrial Ethernet | — |
| Carrier Frequency | — | 125 kHz |
| Protocol | — | HITAG 2 with mutual authentication |
| User Memory | — | 256 bits (32 x 8 bits) |
| Transaction Time | — | 39 ms (typical) |
| Power Supply | — | Derived from LF magnetic field (passive, no battery) |
| Package Type | — | SOT-385-1 (glass-encapsulated transponder) |
| Mounting Form | — | Embedded in key head / plastic overmold |
| Authentication Type | — | Mutual (challenge-response, rolling code) |
| Read/Write | — | Read/Write |
| Storage Temperature | — | [DATA_NEEDED: storage temperature] |
| ESD Rating | — | [DATA_NEEDED: ESD rating] |
| Encryption Algorithm | — | HITAG 2 proprietary stream cipher |
| Target Application | — | Automotive immobilizer, RKE, access control |
| REACH Status | — | Compliant |